Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Takashi Sasaoka Last modified date:2022.04.08

Associate Professor / Mining System Engineering / Department of Earth Resources Engineering / Faculty of Engineering


Presentations
1. Hideki SHIMADA, Hiroto HASHIKAWA, Akihiro HAMANAKA, Takashi SASAOKA, Sugeng WAHYUDI, Ground Improvement with Sodium Silicate Chemical Grouting to Tropical Volcanic Regions, 5th International Workshop on Rock Mechanics and Engineering Geology in Volicanic Fields, 2021.09.
2. Hideki SHIMADA, Takashi SASAOKA, Peng MA , Current Situation of Rectangular Pipe Jacking Technology in Japan , 25th International Trenchless Technology Conference , 2021.04.
3. Ryota TAKAHASHI, Peng MA, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Fumihiko MATSUMOTO, Tomo MORITA , Application of Under-pinning Pipe Jacking on the Existing Infrastructure , 25th International Trenchless Technology Conference , 2021.04.
4. Tumelo K.M.DINTWE, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA, Dyson MOSES, Peng MA, Fanfei MENG , Effects of Underground Mining on the Open Pit Slope Walls , International Symposium on Earth Science and Technology 2020, 2020.11.
5. Fanfei MENG, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA , Mechanical Behavior of Broken Rock Mass under Triaxial Compression Based on Particle Discrete Elements , International Symposium on Earth Science and Technology 2020, 2020.11.
6. Cho Thae OO, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA, Analyze the Stability of Underground Mine Based on Different Vein Angles and GSI values (Sn-W Deposits) at Hermyin Gyi Mine, Myanmar, International Symposium on Earth Science and Technology 2020, 2020.11.
7. Ryota TAKAHASHI, Xiaohu HU, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Fumihiko MATSUMOTO, Tomo MORITA, Masatomo ICHINOSE, Numerical Study on Applicability of Under-pinning Method Using Pipe Jacking and Influence on Surrounding Ground, International Symposium on Earth Science and Technology 2020, 2020.11.
8. Yoshitaka NAKAO, Takashi SASAOKA, Akihiro HAMANAKA, Hideki SHIMADA, Control the Particle Size of Muck Pile with Delay Time Considering Discontinuity of Rock Mass, International Symposium on Earth Science and Technology 2020, 2020.11.
9. Yoshimitsu MAKABE, Akihiro HAMANAKA, Kenichi ITAKURA, Junichi KODAMA, Gota DEGUCHI, Nuhindro Priagung WIDODO, Budi SULISTIANTO, Takashi SASAOKA, Hideki SHIMADA , Experimental Study on Co-axial System with A Horizontal Well of Underground Coal Gasification to Evaluate Gasification Efficiency , International Symposium on Earth Science and Technology 2020, 2020.11.
10. Las KURI, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA, Cho Thae OO , Slope Stability Analysis of Hamata Tailings Dam, Hidden Valley Mine, Papua New Guinea, International Symposium on Earth Science and Technology 2020, 2020.11.
11. Yuki SAKAMOTO, Takashi SASAOKA, Akihiro HAMANAKA, Hideki SHIMADA, Dyson MOSES , Slope Design and Slope Stability Analysis of Carbonatite Mine at Songwe Hill in Malawi , International Symposium on Earth Science and Technology 2020, 2020.11.
12. Dyson MOSES, Hideki SHIMADA, Takashi SASAOKA , Akihiro HAMANAKA, Tumelo K.M.DINTWE, Peng MA, Fanfei MENG, Cho Thae OO , Assessment of the Influence of a Brecciated Zone on Slope Stability , International Symposium on Earth Science and Technology 2020, 2020.11.
13. Ulaankhuu BATSAIKHAN, Takashi SASAOKA, Hideki SHIMADA, Sugeng WAHYUDI , Study of the Roadway Stability and Design of Support System in Underground Coal Mine , International Symposium on Earth Science and Technology 2020, 2020.11.
14. Sifei LIU, Jingyi CHENG, Takashi SASAOKA, Hideki SHIMADA, Zhijun WAN, Yuan ZHANG , Study on Evaluation Technology of Coal Pillar Stability Base on Vision Technology , International Symposium on Earth Science and Technology 2020, 2020.11.
15. Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Application of the Conception of Underpinning for Ground Stability Control with Pipe Jacking Method, 24th International Trenchless Technology Conference, 2020.09.
16. Shogo IKEMATSU, Xiaohu HU, Han Huor OENG, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Toru SATO, Reduction of the Surface Settlement Caused by Pipe Roof Construction with Lubricants and Installation Sequence, 24th International Trenchless Technology Conference, 2020.09.
17. Peng MA, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Fumihiko MATSUMOTO, Key Issue and Development Trends of Rectangular Pipe Jacking Machine in Japan, 24th International Trenchless Technology Conference, 2020.09.
18. Fanfei MENG, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA, Sugeng WAHYUDI, Chunde PIAO , Subsidence Calculation Model of Different Zone after Mining Based on Optical Fiber Sensor , International Symposium on Earth Science and Technology 2019, 2019.12.
19. Takahiro SHIOMORI, Takashi SASAOKA, Sugeng WAHYUDI, Akihiro HAMANAKA, Hideki SHIMADA , Effect of Firing Pattern on the Size Distribution of Rock Fragmentation in Open Pit Mine , International Symposium on Earth Science and Technology 2019 , 2019.12.
20. Cho Thae OO, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA, Sugeng WAHYUDI, Tun NAING , Preliminary Study of Mine Closure for Underground Mines in Myanmar , International Symposium on Earth Science and Technology 2019, 2019.12.
21. Bilguun ENKHBOLD, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Sugeng WAHYUDI , Investigation on Slope Stability of Internal Dump of the Baganuur Open Pit Mine in Mongolia , International Symposium on Earth Science and Technology 2019, 2019.12.
22. Yoshihiro TAGASHIRA, Takashi SASAOKA, Akihiro HAMANAKA, Hideki SHIMADA, Keisuke TAKAHASHI, Study of Applicability of Sealing Material with Low Specific Gravity for Suction Mining of Rare-earth Rich Mud, International Symposium on Earth Science and Technology 2019, 2019.12.
23. Hideki SHIMADA, Sugeng WAHYUDI, Takashi SASAOKA, Akihiro HAMANAKA, Yasuharu TOSHIDA, Tomohiko ABE , Application of Sodium Silicate Chemical Grouting to Tropical Regions , The 28th International Symposium on Mine Planning and Equipment Selection - MPES 2019 , 2019.12.
24. Takashi SASAOKA, Yoshiaki TAKAHASHI, Akihiro HAMANAKA, Sugeng WAHYUDI, Hideki SHIMADA , Drilling, Blasting and Excavation Engineering Effect of Delay Time and Firing Patterns on the Size of Fragmented Rocks by Bench Blasting , The 28th International Symposium on Mine Planning and Equipment Selection - MPES 2019, 2019.12.
25. Naung NAUNG, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA, Sugeng WAHYUDI, Pisith MAO , Rock Mechanics and Geotechnical Applications Evaluation on the Instability of Stope Mining Influenced by the Risks of Slope Surface and Previous Mined-out Activities , The 28th International Symposium on Mine Planning and Equipment Selection - MPES 2019, 2019.12.
26. Pisith MAO, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA, Sugeng WAHYUDI, Jiro OYA, Naung NAUNG , Numerical Investigation on Gate-Entry Stability of Trial Panel in Indonesia Longwall Coal Mine , The 28th International Symposium on Mine Planning and Equipment Selection - MPES 2019, 2019.12.
27. Kazuki MAEHARA, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Fumihiko MATSUMOTO, Tomo MORITA , Fundamental Study on Application of Underpinning Method Using Pipe Jacking by Means of Numerical Simulation , The 5th ISRM Young Scholars' Symposium on Rock Mechanics & International Symposium on Rock Engineering for Innovative Future , 2019.12.
28. Shogo IKEMATSU, Takashi SASAOKA, Akihiro HAMANAKA, Hideki SHIMADA, Study on the Safety Distance between the Mining Area and the Underground Space for Crushing Facility under Different Rock Mass Conditions at Limestone Quarry, The 5th ISRM Young Scholars' Symposium on Rock Mechanics & International Symposium on Rock Engineering for Innovative Future, 2019.12.
29. Thant Swe WIN, Hideki SHIMADA, Akihiro HAMANAKA, Takashi SASAOKA, Sugeng WAHYUDI, Hiroto YAMASAKI, Shinji MATSUMOTO, Myo Min TUN , Assessing the Potential Acid Forming Waste Rocks in Kyaukpahto Gold Mine, Kawlin Township, Sagaing Region, Myanmar , 5th ISRM Young Scholars' Symposium on Rock Mechanics & International Symposium on Rock Engineering for Innovative Future , 2019.12.
30. Naung NAUNG, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Sugeng WAHYUDI, Pisith MAO, Risk Evaluations for Stope Mining Affected by Slope Surface, The 5th ISRM Young Scholars' Symposium on Rock Mechanics & International Symposium on Rock Engineering for Innovative Future, 2019.12.
31. Tomonori HOSHINO, Hideki SHIMADA, Takashi SASAOKA , Study on the Influence of Ground Characteristics on Wearing of Shield Machine Cutter Bit in Gravel Ground , The 5th ISRM Young Scholars' Symposium on Rock Mechanics & International Symposium on Rock Engineering for Innovative Future, 2019.12.
32. Pisith MAO, Tsuyoshi SAISHO, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA, Sugeng WAHYUDI, Jiro OYA, Naung NAUNG , Numerical Analysis of Longwall Gate-Entry Stability under Difference Remains Coal Thickness , 5th ISRM Young Scholars' Symposium on Rock Mechanics & International Symposium on Rock Engineering for Innovative Future , 2019.12.
33. Dyson MOSES, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Sugeng WAHYUDI , Slope Angle Optimisation for Songwe Open Pit Mine , 8th World Conference on Applied Science, Engineering and Management , 2019.12.
34. Ma PENG, Hideki SHIMADA, Takashi SASAOKA, Chunde PIAO, Deyu QIAN , Application of Efficient Support System for Rapid Excavation in Deep Underground Coal Mine , 8th World Conference on Applied Science, Engineering and Management , 2019.12.
35. Akihiro HAMANAKA, Han Huor OENG, Kazuki MAEHARA, Takashi SASAOKA, Hideki SHIMADA, Toru SATO , Effects of Lubricants in Over-cutting Area of Pipe Roof Method on Reducing Surface Settlement , VCRES 2019 International Symposium , 2019.11.
36. Yoshiaki TAKAHASHI, Takashi SASAOKA, Sugeng WAHYUDI, Akihiro HAMANAKA, Hideki SHIMADA, Tei SABURI, Shiro KUBOTA, Yuji OGATA , The Effect of Blasting Designs and Rock Mass Conditions on Flyrock and the Its Prediction , International Conference on Explosives and Blasting (ICEB 10) , 2019.10.
37. Hideki SHIMADA, Takashi SASAOKA, Sugeng WAHYUDI, Akihiro HAMANAKA, Fumihiko MATSUMOTO, Tomo MORITA, Stability of Surrounding Soil by Using Underpinning Pipe Jacking Method , NO-DIG 2019 37th International Conference and Exhibition , 2019.09.
38. Takashi Sasaoka, Hideki Shimada, Akihiro Hamanaka, Shinji Matsumoto, Rudy Sayoga Gautama, Ginting Jalu Kusuma, Sendy Dwiki, Classification Method of Waste Rocks for Prevention of Acid Mine Drainage by Considering AMD Potential in a Short and a Long Term, National Seminar in Acid Mine Drainage and Mine Water Management in Indonesia, 2019.09.
39. Takashi SASAOKA, Hideki SHIMADA, Koichiro WATANABE, Akira IMAI, Takeshi TSUJI, Hajime MIKI , Cooperative Program for Resources Engineering between Kyushu University and Hokkaido University, Japan , 30th SOMP Annual Meeting and Conference , 2019.07.
40. Hideki SHIMADA, Sugeng WAHYUDI, Takashi SASAOKA, Akihiro HAMANAKA , Behavior of Surrounding Soil in the Case of Application of Under-pinning Method by Using Pipe Jacking , Trenchless Asia 2019 , 2019.07.
41. Kazuki MAEHARA, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA , Development of Filling Material with Fly Ash and Slag as Lubricant in Pipe Jacking under Acid Sulfate Soils , 23rd International Conference on Environment and Mineral Processing and Workshop Waste - Secondary Raw Materials , 2019.06.
42. Takashi SASAOKA, Akihiro HAMANAKA, Takahiro FUNATSU, Hideki SHIMADA, Keisuke TAKAHASHI , Study on Addition of Surfactants Agents to Improve the Behavior of High Water Content Sediment for Rare Earth Mining in Deep Sea , 23rd International Conference on Environment and Mineral Processing and Workshop Waste - Secondary Raw Materials , 2019.06.
43. Takashi SASAOKA, Pisith MAO, Hideki SHIMADA, Akihiro HAMANAKA, Jiro OYA , Study on Control Measures of Shield Support in Longwall Face under Weal Geological Condition in Indonesia , Aachen International Mining Symposia - Mines of the Future - , 2019.06.
44. Hideki SHIMADA, Sugeng WAHYUDI, Takashi SASAOKA, Akihiro HAMANAKA, Application of Rectangular Pipe Jacking to Excavation of Large Space, 23rd International Trenchless Technology Conference, 2019.04.
45. Kazuki MAEHARA, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Development of Lubricant Material into Over-cutting Area for Reduction of Jacking Thrust, 23rd International Trenchless Technology Conference, 2019.04.
46. Peng MA, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Analytical Study on Soil Behavior and its Countermeasures Using Pipe Jacking Method in Deep Strata, 23rd International Trenchless Technology Conference, 2019.04.
47. Takashi SASAOKA, Kizuku URATA, Hideki SHIMADA, Tomoki HOSHINO, Toshihiro HATTORI, Tetsuo HATORI , Experimental Study on Quantitative Evaluation and Prediction Method of Cutter Bit Wear for Shield Machine in Gravel Ground , 10th Asian Rock Mechanics Symposium , 2018.11.
48. Naung NAUNG, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Sugeng WAHYUDI, Pisith MAO , Fundamental Study of Stope and Barrier Pillar Stability by Using Cut and Fill Method for Redevelopment of Rest Gold Mine, Myanmar , 27th International Symposium on Mine Planning & Equipment Selection , 2018.11.
49. Akihiro HAMANAKA, Hiroto YAMASAKI, Takashi SASAOKA, Hideki SHIMADA, Shinji MATSUMOTO, Application of Fly Ash to Acidic Soil to Improve Plant Growth in Disturbed Land of Open-cut Mining, 27th International Symposium on Mine Planning & Equipment Selection, 2018.11.
50. Takahiro FUNATSU, Tomohiko SAKIYAMA, Akihiro HAMANAKA, Takashi SASAOKA, Hideki SHIMADA, Keisuke TAKAHASHI , Modification of High Water Content Sediment for Rare Earth Mining in Deep Sea by Surfactants Agents , 27th International Symposium on Mine Planning & Equipment Selection, 2018.11.
51. Naung NAUNG, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA, Sugeng WAHYUDI, Pisith MAO , Optimization of Stope's Stability under the Influence of Overlaying Mined-out Regions , International Symposium on Earth Science and Technology 2018 , 2018.11.
52. Pisith MAO, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA, Sugeng WAHYUDI, Naung NAUNG , Numerical Analysis of Seam Interaction on Gate Entry in Multiple Seams Longwall Coal Mine in Indonesia , International Symposium on Earth Science and Technology 2018, 2018.11.
53. Tumelo K.M. DINTWE, Takashi SASAOKA, Hideki SHIMADA, Ma PENG, Takafumi SEIKI, Shizuo NOGUCHI , A Fundamental Study on the Static and Dynamic Stability of the Room and Pillar Underground Quarry in Oya , International Symposium on Earth Science and Technology 2018, 2018.11.
54. Yoshiaki TAKAHASHI, Shiro KUBOTA, Hajime YAMAUCHI, Tei SABURI, Takashi SASAOKA, Sugeng WAHYUDI, Takahiro FUNATSU, Hideki SHIMADA, Yuji OGATA , Experimental and Numerical Study on Effect of Blasting Designs on Stress Wave Propagation and Rock Fracture Mechanism , International Symposium on Earth Science and Technology 2018, 2018.11.
55. Masahiro TANAKA, Hideki SHIMADA, Takahiro FUNATSU, Takashi SASAOKA, Akihiro HAMANAKA, Fumihiko MATSUMOTO, Tomo MORITA , Study on the Application of Under-pinning Method Using Pipe Jacking Method , International Symposium on Earth Science and Technology 2018, 2018.11.
56. Han Huor OENG, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Takahiro FUNATSU, Sugeng WAHYUDI, Toru SATO, Pisith MAO , Fundamental Study on the Effects of Grouting Materials of Pipe Roof Method on Reducing Surface Settlement , International Symposium on Earth Science and Technology 2018, 2018.11.
57. Kazuki MAEHARA, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Takahiro FUNATSU , Development of Backfilling Material in Over-cutting Area with Fatty Acids to Decrease Thrust for Pipe Jacking , International Symposium on Earth Science and Technology 2018, 2018.11.
58. Cho Thae OO, Takashi SASAOKA, Hideki SHIMADA, Takahiro FUNATSU, Akihiro HAMANAKA, Sugeng WAHYUDI, Tun NAING, Naung NAUNG , Design of Underground Mining System at Shallow Area in Bawsaing Mine, Myanmar, International Symposium on Earth Science and Technology 2018, 2018.11.
59. Satoru ASANO, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Yasuharu TOSHIDA, Tomohiko ABE , Fundamental Study of Sodium Silicate Chemical Grouting Application in the Case of Indonesian Soil Environment , International Symposium on Earth Science and Technology 2018, 2018.11.
60. Thant Swe WIN, Hideki SHIMADA, Akihiro HAMANAKA, Takashi SASAOKA, Takahiro FUNATSU, Sugeng WAHYUDI, Myo Min TUN , Identification of Acid-generating Waste Rocks from Waste Dump in Kyaukpahto Gold Mine, Kawlin Township, Sagaing Region, Myanmar , International Symposium on Earth Science and Technology 2018, 2018.11.
61. Xiangyang SUN, Amarsaikhan TSEDENDORJ, Takashi SASAOKA, Akihiro HAMANAKA, Sugeng WAHYUDI, Hideki SHIMADA , Preliminary Study on Optimization of Buffer Zone between Open-pit and Dumping Site in the Open-pit Copper Mine in Mongolia , International Symposium on Earth Science and Technology 2018, 2018.11.
62. Mitsuki NISHIMORI, Yoshiaki TAKAHASHI, Takashi SASAOKA, Sugeng WAHYUDI, Akihiro HAMANAKA, Hideki SHIMADA , Study on the Effect of Delay Time and Direction on Ground Vibration , International Symposium on Earth Science and Technology 2018, 2018.11.
63. Hiroto YAMASAKI, Akihiro HAMANAKA, Takashi SASAOKA, Hideki SHIMADA, Shinji MATSUMOTO , Improvement of Plant Growth of Acacia Mangium with Addition of Fly Ash into Acidic Soil , International Symposium on Earth Science and Technology 2018, 2018.11.
64. Xiaohu HU, Kazuki MAEHARA, Peng MA, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Toru SATO , Design of Pipe Roof Jacking Method on Adjacent Building Structure , International Symposium on Earth Science and Technology 2018, 2018.11.
65. Peng MA, Takashi SASAOKA, Hideki SHIMADA, Tumelo K.M. DINTWE, Deyu QIAN, Nong ZHANG , Study on the Application of Screw Bolt in Coal Mine Roadway Support , International Symposium on Earth Science and Technology 2018, 2018.11.
66. Kizuku URATA, Takashi SASAOKA, Hideki SHIMADA, Akihiro HAMANAKA , Study on the Effects of Gravel Characteristics and Ground Conditions on Cutter Bit Wear of Shield Machine in Gravel Ground , International Symposium on Earth Science and Technology 2018, 2018.11.
67. Seiya SAKUMA, Kazuki MAEHARA, Takahiro FUNATSU, Akihiro HAMANAKA, Takashi SASAOKA, Hideki SHIMADA , Study of the Factors Affecting Behavior of Earth Stepped-twin Retaining Wall , International Symposium on Earth Science and Technology 2018, 2018.11.
68. Shohei ETO, Naung NAUNG, Hideki SHIMDADA, Takashi SASAOKA, Akihiro HAMANAKA, Takahiro FUNATSU, Sugeng WAHYUDI , Fundamental Study of Stope and Barrier Pillar Stability under Overlaying Mined-out Area in Modi Taung Gold Mine, Myanmar , International Symposium on Earth Science and Technology 2018, 2018.11.
69. Meng FANFEI, Hai PU, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA, Sugeng WAHYUDI , Simulation of Fracture Extension Law of Roof under the Case of Time-dependent Behavior and Seepage Action , International Symposium on Earth Science and Technology 2018, 2018.11.
70. Fumihiko Matsumoto, Tomo Morita, Eiji Sakai, Hideki Shimada, Takashi Sasaoka and Kikuo Matsui, Study On Bit Wear for High Density Slurry Pipe Jacking Crusher Type Machine Through A Hard Ground Pipe Jacking, International No-Dig 2018 36th International Conference and Exhibition, 2018.10.
71. Hideki Shimada, Kazuki Maehara, Masahiro Tanaka, Sugeng Wahyudi, Takashi Sasaoka, Akihiro Hamanaka, Fumihiko Matsumoto and Tomo Morita , Behavior of Soil around Rectangular Pipe by Using New Type Excavation of Pipe Jacking, International No-Dig 2018 36th International Conference and Exhibition, 2018.10.
72. Naung NAUNG, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA,Sugeng WAHYUDI, Pisith MAO , Geotechnical Assessment of Rock Mass and Potential Failures in Stope Mining at NPGPGL Underground Gold Mine, Myanmar , 2018 Joint International Conference on Science, Technology and Innovation , 2018.10.
73. Seiya SAKUMA, Hideki SHIMADA, Takashi SASAOKA , Case Study of Cutter Soil Mixing (CSM) Method on Hard Soil Conditions , 10th Asian Rock Mechanics Symposium , 2018.10.
74. Toru SATO, Kikuo MATSUI, Hideki SHIMADA, Takashi SASAOKA, Akihiro HAMANAKA , Development of a Micro-tunnel Boring Machine (MTBM) in Pipe-roofing Considering Ground Conditions , 10th Asian Rock Mechanics Symposium , 2018.10.
75. Hideki SHIMADA, Sugeng WAHYUDI, Satoru ASANO, Kazuki MAEHARA, Takashi SASAOKA, Akihiro HAMANAKA , Application of Soil Improvement by Sodium Silicate-based Grouting on Indonesian Sand , 10th Asian Rock Mechanics Symposium , 2018.10.
76. Takashi Sasaoka, Hideki Shimada, Koichiro Watanabe, Takeshi Tsuji, Ryo Imai, Hajime Miki, Yasuhiro Fujimitsu, Yuichi Suigai, Kotaro Yonezu, Naoki Hiroyoshi, Cooperative program for resources engineering between Kyushu University and Hokkaido University-International Field Exercise 2017, 29th Annual Meeting and Conference for Society of Mining Professors , 2018.07.
77. Takashi SASAOKA, Hiroshi TAKAMOTO, Hideki SHIMADA, Akihiro HAMANAKA, Sugeng WAHYUDI, Jiro OYA , Study on Appropriate Support System and Control Criteria for Main Roadway under Weak Geological Conditions in Indonesia, Mining In Asia International Symposium, 2018.07.
78. Hideki Shimada, Takashi Sasaoka, Koichiro Watanabe, Takeshi Tsuji, Akira Imai, Hajime Miki, Yasuhiro Fujimitsu, Yuichi Sugai, Kotaro Yonezu, Junichi Kodama, and Naoki Hiroyoshi , International Field Trip 2017-Cooperative Program for Resources Engineering Between Kyushu University & Hokkaido University-
, The 8th Society of Mining Professors Regional Meeting Technical Program, 2018.07.
79. Hideki SHIMADA, Sugeng WAHYUDI, Takashi SASAOKA, Akihiro HAMANAKA, Shuichi FUJITA, Kikuo MATSUI, Optimum Backfilling Material into Over-cutting Area Surrounded by Acid Sulfate Soils in East Asian Countries, Trenchless Asia 2018, 2018.05.
80. Takashi SASAOKA, Hiroshi TAKAMOTO, Phanthoudeth PONGPANYA, Akihiro HAMANAKA, Hideki SHIMADA, Guidelines for an Apropriate Support System and Control Criteria for Main Roadway under Weak Geological Conditions in Indonesia, AIMS2018 First International Conference Mines of the Future, 2018.05.
81. Satoru Asano, Rizky Satria Putranto, Hideki Shimada, Takashi Sasaoka, Akihiro HAMANAKA, Yasuharu Toshida, Tomohiko Abe , Fundamental Study of Sodium Silicate Chemical Grouting Application on Indonesian Sand , International Symposium on Earth Science and Technology 2017, 2017.12.
82. Taiko Tagami, Tomohiko Sakiyama, Takahiro Funatsu, Akihiro HAMANAKA, Takashi Sasaoka, Hideki Shimada, Keisuke Takahashi , Study on Deformation Behavior of Rare-earth Elements Rich Mud and Applicability of Sealing Materials in Seabed Mining , International Symposium on Earth Science and Technology 2017, 2017.12.
83. Shinji Matsumoto, Sendy Dwiki, Hideki Shimada, Takashi Sasaoka, Ginting Jalu Kusuma , Utilization of Coal Ash for Prevention of Environmental Issues in Mine Sites: Necessity of a Multidisciplinary Approach , International Symposium on Earth Science and Technology 2017, 2017.12.
84. Mitsuki Nishimori, Yoshiaki Takahashi, Takashi Sasaoka, SUGENG WAHYUDI, Akihiro HAMANAKA, Hideki Shimada , Study on Prediction of Ground Vibration in Consideration of Fragmentation in the Rock , International Symposium on Earth Science and Technology 2017, 2017.12.
85. Masahiro Tanaka, Hideki Shimada, Takahiro Funatsu, Takashi Sasaoka, Akihiro HAMANAKA, Fumihiko Matsumoto, Tomo Morita , Study on Application of New Pipe Jacking Method with Rectangular Shape in Shallow Strata , International Symposium on Earth Science and Technology 2017, 2017.12.
86. Han Hour Oeng, Hideki Shimada, SUGENG WAHYUDI, Takashi Sasaoka, Akihiro HAMANAKA, Toru Sato , Fundamental Study on Behavior of Surrounding Soil by Using Pipe Bursting , International Symposium on Earth Science and Technology 2017, 2017.12.
87. Yoshiaki Takahashi, Tei SABURI, Takashi SASAOKA, Sugeng Wahyudi, Shiro KUBOTA, Hideki SHIMADA, Yuji OGATA, Fundamental Study on Rock Fracture Mechanism Induced by Blasting in Small-scale Blasting Tests, The 6th International Symposium on Energetic Materials and their Applications, 2017.11.
88. Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Ginting Jalu Kusuma , Environmental Issues in Open-cast Coal Mine in Southeast Asia: Interrelation of Environmental Problems within a Mine Operation in Indonesia , Coal Mining and Utilization for Sustainable Development International Conference , 2017.11.
89. Zhiyi Zhang, Hideki Shimada, Takashi Sasaoka , Numerical Study on the Effectiveness of Grouting Reinforcement on Large Heaving Floor of Retained Gob-side Gateroad in Deep Underground Coalmine , International Symposium on Earth Science and Technology 2017 , 2017.11.
90. Naung Naung, Hideki Shimada, Takashi Sasaoka, Akihiro HAMANAKA, SUGENG WAHYUDI, Phanthoudeth Pongpanya, Tin Htun, Kyaw Htet Aung , Evaluation on Rock Mass Condition and Current Mining Condition in NPGPGL Underground Gold Mine, Myanmar , International Symposium on Earth Science and Technology 2017 , 2017.11.
91. Phanthoudeth Pongpanya, Takashi Sasaoka, Hideki Shimada, Akihiro HAMANAKA, SUGENG WAHYUDI, Naung Naung , Ground Behavior of Mine Portal Excavated in Poor Rock Mass at PT Gerbang Daya Mandiri Underground Coal Mine in Indonesia , International Symposium on Earth Science and Technology 2017 , 2017.11.
92. Kai Wen, Hideki Shimada, Takashi Sasaoka, Akihiro HAMANAKA, SUGENG WAHYUDI , Numerical Study on Tunnel Face Stability and Ground Deformation of Slurry Pipe Jacking in Cold Region , International Symposium on Earth Science and Technology 2017 , 2017.11.
93. Kizuku Urata, Takashi Sasaoka, Hideki Shimada, Akihiro HAMANAKA, Tomonori Hoshino , Experimental Study on the Influence of Gravel Characteristics and Gravel Content on the Cutter Bit Wear of Shield Machine in Gravel Ground , International Symposium on Earth Science and Technology 2017 , 2017.11.
94. Sendy Dwiki, Hideki Shimada, Rudy Sayoga Gautama, Takashi Sasaoka, Ginting Jalu Kusuma , Characterization of Fly Ash Types Based on Geochemical and Physical Behavior in the Using for Acid Mine Drainage Prevention , International Symposium on Earth Science and Technology 2017 , 2017.11.
95. Thant Swe Win, Hideki Shimada, Akihiro HAMANAKA, Takashi Sasaoka, SUGENG WAHYUDI, Myo Min Tun , Preliminary Study on Acid-Generating Waste Rocks in the Open-pit Backfilling of Monywa Copper Deposit, Myanmar , International Symposium on Earth Science and Technology 2017 , 2017.11.
96. Cho Thae Oo, Takashi Sasaoka, Akihiro HAMANAKA, Hideki Shimada, Tun Naing, Su Su Kyi, Wa Aung, Naing Zaw , Zonation and Preventative Measures of Landslide along Falam-Hakha Car Road, Chin State in Myanmar , International Symposium on Earth Science and Technology 2017, 2017.11.
97. Xiangyang Sun, Takashi Sasaoka, Hideki Shimada, SUGENG WAHYUDI, Akihiro HAMANAKA, Zhiyi Zhang , Preliminary Study on Mechanism of Floor Heave in Underground Coal Mine , International Symposium on Earth Science and Technology 2017, 2017.11.
98. Yoshiaki Takahashi, Tei Saburi, Takashi Sasaoka, SUGENG WAHYUDI, Shiro Kubota, Hideki Shimada, Yuji Ogata , Dynamic Strain Measurement by means of Digital Image Correlations Method for Study on Rock Fracture Mechanism Induced by Blasting, International Symposium on Earth Science and Technology 2017, 2017.11.
99. Kentaro Nishie, Hideki Shimada, Keiko Sasaki, Takashi Sasaoka, Akihiro HAMANAKA, Shinji Matsumoto , Physical Influence of New Radioactive Material Adsorbent Using Montmorillonite on Cement Solidification Treatment , International Symposium on Earth Science and Technology 2017, 2017.11.
100. Zaya Buyanbat, Hideki Shimada, Takashi Sasaoka, Akihiro HAMANAKA, SUGENG WAHYUDI, Sendy Dwiki , Fundamental Characterization of Waste Rock for Dry Cover Prevention Method of Acid Mine Drainage Generation by Using Fly Ash and Organic Material , International Symposium on Earth Science and Technology 2017, 2017.11.
101. Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Ginting Jalu Kusuma , Environmental Conservation in Consideration of Regional Characteristics in Open-pit Coal Mine in Southeast Asia , 53rd CCOP Annual Session , 2017.10.
102. Kotaro Yanaguchi, Yoshiaki Takahashi, Takashi Sasaoka, Akihiro HAMANAKA, SUGENG WAHYUDI, Hideki Shimada , Experimental Study on the Effect of Blasting Patterns and Rock Mass Conditions on Flying Behavior of Fragmented Rock in Open Pit Metal Mine, The 9th International Conference on Explosives and Blasting , 2017.10.
103. Akihiro HAMANAKA, Shinji Matsumoto, Kaito Murakami, Hideki Shimada, Takashi Sasaoka , Application of a Mixture of Fly Ash and Topsoil for Rehabilitation in Open-pit Coal Mines in South East Asian Countries , 2nd International Symposium on Land Reclamation and Ecological Restration , 2017.10.
104. Hideki Shimada, Shinji Matsumoto, Akihiro HAMANAKA, Takashi Sasaoka, Ginting Jalu Kusuma , Effect of Acid Soil Properties on Soil Erosion at a Dumping Site in an Open-pit Coal Mine, Indonesia , 2nd International Symposium on Land Reclamation and Ecological Restration , 2017.10.
105. Yoshiaki TAKAHASHI, Tei SABURI, Takashi SASAOKA, Sugeng WAHYUDI, Shiro KUBOTA, Hideki SHIMADA, Yuji OGATA , Study on Rock Fracture Mechanism Induced by Blasting and the Effect of Delay Time with Mortal Block, The 6th International Symposium on Energetic Materials and Their Applications , 2017.09.
106. Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Akihiro HAMANAKA, Shizuo Ikuta , Development of Chain Conveyor Cutter Method and Its Application , 26th International Symposium on Mine Planning & Equipment Selection , 2017.08.
107. Takashi Sasaoka, Kizuku Urata, Hideki Shimada, Akihiro HAMANAKA, Yoshihiro Tanaka, Tomonori Hoshino, Koji Noguchi , Fundamental Study on Quantitative Evaluation and Prediction Method of Cutter Bit Wear for Shield Machine in Gravel Ground , 26th International Symposium on Mine Planning & Equipment Selection , 2017.08.
108. Keisuke Takahashi, Toshiro Yamanaka, Hideki Shimada, Takashi Sasaoka, Akihiro HAMANAKA , Application of Cement-based Sealants for Prevention and Remediation of Environmental Impact of Submarine Resource Mining , 26th International Symposium on Mine Planning & Equipment Selection , 2017.08.
109. Hideki Shimada, Takashi Sasaoka, Akihiro HAMANAKA, Toru Sato, Fumihiko Matsumoto, Application of Pipe Jacking Technology into ASEAN Countries
, NASTT's 2017 No-Dig Show and ISTT's 35th annual International No-Dig , 2017.04.
110. Naung Naung, Hideki Shimada, SUGENG WAHYUDI, Takashi Sasaoka, Tomo Morita, Fumihiko Matsumoto, Recent Pipe Jacking Technology in Japan and Its Application Examples into ASEAN Countries
, International Symposium on Earth Science and Technology 2016, 2016.12.
111. Zhiyi Zhang, Takashi Sasaoka, Hideki Shimada, SUGENG WAHYUDI, Optimization of Hard Roof Structure over Retained Goaf-side Gateroad by Pre-split Blasting Technology
, International Symposium on Earth Science and Technology 2016, 2016.12.
112. Yoshiaki Takahashi, Kotaro Yamaguchi, Takashi Sasaoka, SUGENG WAHYUDI, Hideki Shimada, Effects of Blasting Designs and Rock Mass Conditions on Rock Fragmentation Induced by Blasting in Open Pit Metal Mine , International Symposium on Earth Science and Technology 2016, 2016.12.
113. Shunta Ogata, Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Study on Effective Revegetation at Post-mining Land in Indonesian Open-cut Coal Mine , International Symposium on Earth Science and Technology 2016, 2016.12.
114. Kai Wen, Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Deyu Qian, Preliminary Study on Application of Pipe Jacking Technology to Infrastructure Construction in Cold Regions
, International Symposium on Earth Science and Technology 2016, 2016.12.
115. Mingwei Zhang, Shengdong Liu, Deyu Qing, Hideki Shimada, Takashi Sasaoka, Determination of Microseismic Focus Energy Using Residual Seismic Wave Attenuation in Deep Rock Stratum
, International Symposium on Earth Science and Technology 2016 , 2016.12.
116. Seiichi Sakamoto, Hideki Shimada, Takashi Sasaoka, Shuichi Fujita, Keisuke Takahashi, Fundamental Study on Deformation Behavior of Seafloor Covered with Sealing Materials in Seabed Mining
, International Symposium on Earth Science and Technology 2016, 2016.12.
117. Toshinao Sasaki, Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Shuichi Fujita, Applicability of Chemical Grouting on Improvement of Soil in Indonesia
, International Symposium on Earth Science and Technology 2016, 2016.12.
118. Shinji Matsumoto, Shunta Ogata, Hideki Shimada, Takashi Sasaoka, Ginting Jalu Kusuma, Effects of Soil Acidification on Soil Erosion in Open-cast Coal Mines in Indonesia , International Symposium on Earth Science and Technology 2016, 2016.12.
119. Sendy Dwiki, Hideki Shimada, Rudy Sayoga, Takashi Sasaoka, Ginting Jalu Kusuma, Evaluation of Oxygen Behavior in Overburden Dumping Area: A Field Measurement Study Comparing Potentially Acid Forming and Non-acid Forming Rock, International Symposium on Earth Science and Technology 2016, 2016.12.
120. Hirotaka Ishimatsu, Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Classification of Waste Rocks in Terms of Physical and Geochemical Property to Prevent Acid Mine Drainage in Open-cut Coal Mines in Indonesia
, International Symposium on Earth Science and Technology 2016, 2016.12.
121. Hideki Shimada, SUGENG WAHYUDI, Takashi Sasaoka, Akihiro HAMANAKA, Recent Pipe Jacking Technology in Japan and Its Application into ASEAN Countries
, 20th Annual National Conference on Geotechnical Engineering , 2016.11.
122. Takashi Sasaoka, Naung Naung, SUGENG WAHYUDI, Hideki Shimada, Application of Pipe Jacking Technology to Development of Underground Mine Roadway under Weak Geological Condition
, International Conference on Earth Sciences and Sustainable Geo-resources Development , 2016.11.
123. Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Shuichi Fujita, Yasuhiro Yoshida, Takashi Senda, Practical Design of Over-cutting Area on Pipe Jacking Method by Application of Chemical Grouting , The 8th Asian Joint Symposium on Geotechnical and Geoenvironmental Engineering , 2016.11.
124. Tri Karian, Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Budi Sulistianto, Sill Pillar Application for Crown Pillar Recovery Optimization in Overhand Cut and Fill Underground Mine , 9th Asian Rock Mechanics Symposium, 2016.10.
125. Rizky Satria Putranto, Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Shuichi Fujita, Yoshihito Kanemasu, Experimental Study of Sodium Silicate Grouting Material: Characterization and Mechanical Performances , 9th Asian Rock Mechanics Symposium, 2016.10.
126. Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Shizuo Ikuta, Tomohiko Sakiyama, Application of Chain Conveyor Cutter (CCC) Method to Construction of Ocean Disposal Sites , 9th Asian Rock Mechanics Symposium, 2016.10.
127. Takashi Sasaoka, Yoshiaki Takahashi, Kotaro Yamaguchi, SUGENG WAHYUDI, Hideki Shimada, Tei Saburi, Shiro Kubota, Study on Mechanism and Occurrence Conditions of Fly Rock at Bench Blasting , 9th Asian Rock Mechanics Symposium, 2016.10.
128. Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Shuichi Fujita, Yasuhiro Yoshida, Keisuke Takahashi, Development of Construction Material for Covering of Seabed Resources Using Fly Ash, 9th Asian Rock Mechanics Symposium, 2016.10.
129. Shunta Ogata, Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Effects of the Change of Soil pH on Soil Erosion in Indonesian Open-pit Coal Mine , 9th Asian Rock Mechanics Symposium, 2016.10.
130. Sendy Dwiki, Hideki Shimada, Rudy Sayoga Gautama, Takashi Sasaoka, Ginting Jalu Kusuma, Physical Changes of Coal-bearing Rock in the Dumping Site with the Utilization of Fly Ash and Organic Material as Cover Layer to Prevent Acid Mine Drainage Generation
, 9th Asian Rock Mechanics Symposium , 2016.10.
131. SUGENG WAHYUDI, Hideki Shimada, Takashi Sasaoka, Ganda Marihot Simangunsong, Characteristics of Rock Blast Damage and Damage Criterion of Limestone Rock Mass , 9th Asian Rock Mechanics Symposium , 2016.10.
132. Yoshiaki Takahashi, Tei Saburi, Takashi Sasaoka, SUGENG WAHYUDI, Hideki Shimada, Yuji Ogata, Study on Effect of High Precision Detonation on Fracture Mechanism in Small Scale Blasting Tests
, 9th Asian Rock Mechanics Symposium, 2016.10.
133. Hideki Shimada, SUGENG WAHYUDI, Takashi Sasaoka, Naung Naung, Phanthoudeth Pongpanya, Tunnel Crown Deformation Generated by Pipe Jacking Technology in a Weak Rock Underground Coal Mine , International NO-DIG Beijing 2016 34th International Conference and Exhibition , 2016.10.
134. Toshinao Sasaki, Hideki Shimada, SUGENG WAHYUDI, Takashi Sasaoka, Shuichi Fujita, Yasuhiro Yoshida, Fundamental Study on Development of Filling Material into Tail-void Surrounded by Acid Sulfate Soils in Tropical Regions
, International NO-DIG Beijing 2016 34th International Conference and Exhibition , 2016.10.
135. SUGENG WAHYUDI, Hideki Shimada, Rizky Satria Purtanto, Takashi Sasaoka, Yoshihiro Kanemasu, Yasuharu Toshida, Sodium Silicate-Based Grouting Material Performance on Various Soil Particle Size Fractions Under Acidic Conditions , International NO-DIG Beijing 2016 34th International Conference and Exhibition , 2016.10.
136. Takashi Sasaoka, Yoshiaki Takahashi, Hideki Shimada, SUGENG WAHYUDI, Tei Saburi, Shiro Kubota, Prediction of Blast-induced Ground Vibration Considering Rock Mass Fracture Condition , 6th International Conference on Computer Application in the Mineral Industries , 2016.10.
137. Takashi Sasaoka, PHANTHOUDETH Pongpanya, ULAANKHUU Batsaikhan, Hideki Shimada, TAKAMOTO Hiroshi, OYA Jiro, Study on Support Design for Main Roadway in New Underground Coal Mine Developed from Open-cut Highwall in Indonesia, 35th International Conference on Ground Control in Mining (China, 2016), 2016.09, Indonesia is the second largest coal exporter to Japan, accounting for about 30 Mt annually. They produce over 400 Mt in 2015, over 99% of which is from open-cut mines. However, the conditions of surface mining are becoming worse year by year: the stripping ratio is increasing, approaching to the economic ratio and the infra-structure for coal transportation from inland mining areas is not prepared enough. To meet the demand for coal in Indonesia and the rest of the world, underground mines have to be developed. Under these conditions, our research program is being conducted to study the potential for underground coal mine in Indonesia through the roadway heading research program in which an underground coal mine is attempted to be developed from open pit highwall. The greatest challenge for underground coal mine development in Indonesia is safety of mine roadway in soft rock during heading, because the rock is weaker than other countries. There is a problem of possibility of heading below mobile unconsolidated soft sediment then heading move to deep area. It makes the problem of stability of support system occur due to the increase of ground pressure. The ground behavior of around roadway was measured by using Telltale, Extensometer and conver-gence measures. Moreover, the rock property tests were also conducted by using exploration drilling cores. Based on the geologi-cal data and monitoring data, a series of numerical analyses were conducted in order to discuss the appropriate support design of main roadway to 200m depth..
138. Takashi Sasaoka, Hiro Yamamoto, Hideki Shimada, Koji Noguchi, Quantitative Evaluation and Prediction Method of Cutter Bit Wear for Drivage Machine, AIMS2016 First International Conference Mining in Europe, 2016.05.
139. Shinji Matsumoto, Shunta Ogata, Hideki Shimada, Takashi Sasaoka, Ginting Jalu Kusuma, Rudy Sayoga Gautama, Evaluation Method of Soil Conditions in Rehabiitation Area in Consideration of the Effect of Acid Soil on Vegetation in Coal Mines in Indonesia, AIMS2016 First International Conference Mining in Europe, 2016.05.
140. Shunta Ogata, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Study on Effects of the Cover Layer by Using Coal Ash on Revegetation in Indonesian Open Cut Coal Mine, Asian Conference on Engineering and Natural Science, 2016.02.
141. Sendy Dwiki, Hideki Shimada, Rudy Sayoga, Takashi Sasaoka, Ginting Jalu Kusuma, Fundamental Research of Fly Ash and Organic Material Utilization as Dry Cover Layer for Acid Mine Drainage Prevention Method: Column Leaching Study, Asian Conference on Engineering and Natural Science, 2016.02.
142. Phanthoudeth Pongpanya, Takashi Sasaoka, Hideki Shimada, Deyu Qian, Water Inflow Associated with Ground Subsidence Caused by Undersea Coal Mining, International Symposium on Earth Science and Technology 2015, 2015.12.
143. Ryota Yoshida, Hideki Shimada, Takashi Sasaoka, Toru Sato, Analytical Study on the Construction of Tunnels nearby Buildings by Pipe Roof Method, International Symposium on Earth Science and Technology 2015, 2015.12.
144. Seiichi Sakamoto, Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Shuichi Fujita, SUGENG WAHYUDI, Yasuhiro Yoshida, Keisuke Takahashi, New Development Covering Material Using Fly Ash for Construction of Seabed Structures, International Symposium on Earth Science and Technology 2015, 2015.12.
145. Sendy Dwiki, Hideki Shimada, Rudy Sayoga, Takashi Sasaoka, Ginting Jalu Kusuma, SUGENG WAHYUDI, Study of Fly Ash and Organic Material Utilization as Cover Layer in the Dry Cover Method for AMD Prevention in the Coal Mine, Indonesia, International Symposium on Earth Science and Technology 2015, 2015.12.
146. Yoshiaki Takahashi, Takashi Sasaoka, SUGENG WAHYUDI, Hideki Shimada, Keisuke TAkeuchi, Hiroaki Tanaka, Fundamental Study on Behavior of Flyrock in Open-pit Metal Mine, International Symposium on Earth Science and Technology 2015, 2015.12.
147. Shunta Ogata, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Ikuo Miyajima, Study on Utilization of Coal Ash as Topsoil Substitutes for the Reclamation of Post-Mining Area in Open Cast Coal Mine in Indonesia, International Symposium on Earth Science and Technology 2015, 2015.12.
148. Hirotaka Ishimatasu, Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Fundamental Research of a New Classification of Potentially Acid Forming Aiming at the Prevention of Acid Mine Drainage in Open-pit Coal Mines in Indonesia, International Symposium on Earth Science and Technology 2015, 2015.12.
149. Ulaankhuu Batsaikhan, Takashi Sasaoka, Hideki Shimada, Analysis of Stability and Dimensioning of Openings/Pillars with Highwall Mining System in Panian Pit of Semirara Coal Mine, Philippines, International Symposium on Earth Science and Technology 2015, 2015.12.
150. Naung Naung, Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Fumihiko Matsumoto, Tomo Morita, Fundamental Study on the Behavior of Ground Subsidence by Using Rectangular Pipe Jacking Method, International Symposium on Earth Science and Technology 2015, 2015.12.
151. Ysohinori Miyamoto, Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Study on Construction of Waste Dump by Considering the Change of Physical Properties Associated with Acid MineDrainage in Open Pit Coal Mines in Indonesia, International Symposium on Earth Science and Technology 2015, 2015.12.
152. Shinji Matsumoto, Shunta Ogata, Sendy Dwiki, Hideki Shimada, Takashi Sasaoka, Fundamental Research on Evaluation of Acid-topsoil for Effective Revegetation at Post-mining Land in Indonesian Open Cast Coal Mine, International Symposium on Earth Science and Technology 2015, 2015.12.
153. Zhiyi Zhang, Takashi Sasaoka, Hideki Shimada, SUGENG WAHYUDI, Application of Combined Support System in Deep Retained God-side Entry, International Symposium on Earth Science and Technology 2015, 2015.12.
154. Tri Karian, Takashi Sasaoka, Hideki Shimada, SUGENG WAHYUDI, Crown Pillar Characteristics in Cut and Fill Underground Mine, International Symposium on Earth Science and Technology 2015, 2015.12.
155. Kento Fukui, Yoshiaki Takahashi, Takashi Sasaoka, SUGENG WAHYUDI, Hideki Shimada, Shiro Kubota, Study on Control of Rock Fragmentation at Limestone Quarries, The 8th International Conference on Explosives and Blasting Techniques, 2015.11.
156. Yoshiaki Takahashi, Tei Saburi, Takashi Sasaoka, SUGENG WAHYUDI, Hideki Shimada, Yuji Ogata, Fundamental Study on an Effect of High Precision Detonation on Fracture Mechanism, The 8th International Conference on Explosives and Blasting Techniques, 2015.11.
157. Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Yasuhiro Yoshida, Shuichi Fujita, Material for Construction of Seabed Structures Using Fly Ash - Surfactant Mixtures, The 23rd International Symposium on Mine Planning and Equipment Selection, 2015.11.
158. Takashi Sasaoka, Yoshiaki Takahasi, Hirokuni Inoue, Hideki Shimada, Hiroaki Tanaka, Keisuke Takeuchi, Field Experiments on Flight Behavior of Fragmented Rocks and Control Measure of Fly Rock , The 23rd International Symposium on Mine Planning and Equipment Selection, 2015.11.
159. Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Study on Method for Minimizing Soil Erosion in Open-cut Mines in Tropical Regions , 34th International Conference on Ground Control in Mining (China 2015) , 2015.10, Akihiro Hamanaka (Muroran Institute of Technology)
Hideki Shimada (Department of Earth Resources Engineering, Faculty of Engineering)
Takashi Sasaoka (Department of Earth Resources Engineering, Faculty of Engineering).
160. Donghua Zhang, Takashi Sasaoka, SUGENG WAHYUDI, Hideki Shimada, Formation Mechanism of Benches on Stability of Dumping Area , 34th International Conference on Ground Control in Mining (China 2015) , 2015.10.
161. Hirotaka Ishimatsu, Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Fundamental Study on Application of Potentially Acid Forming for a Cover Layer in Open Pit Coal Mine in Indonesia, The 14th Conference on Science and Technology on Earth Resources and Petroleum , 2015.10.
162. Shunta Ogata, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Ikuo Miyajima, Applicability of Coal Ash for the Revegetation of Post-mining Land in Indonesian Open Cut Coal Mine , The 14th Conference on Science and Technology on Earth Resources and Petroleum, 2015.10.
163. SUGENG WAHYUDI, Hideki Shimada, Takashi Sasaoka, Shuichi Fujita, Takashi Senda, Analytical Study of Backfilling Injection into Over-cutting Area of Deep Pipe Jacking to Improve Surrounding Soil , 4th Annual International Conference on Geologicaland Earth Science, 2015.10.
164. Fumihiko Matsumoto, Tomo Morita, Eiji Sakai, Takashi Sasaoka, Hideki Shimada, Pipe Jacking Method in Connecting New Pipeline to the Existing Underground Structure Including Right Angle
Curve Route , International NO-DIG 2015 33rd International Conference and Exhibition, 2015.09.
165. Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Naung Naung, Toru Sato, Application of Pipe Roof by Using Pipe Jacking under Different Design on Behavior of Ground Surface after
Tunnel Construction , International NO-DIG 2015 33rd International Conference and Exhibition , 2015.09.
166. Hideki Shimada, Takashi Sasaoka, Suhichi Fujita, SUGENG WAHYUDI, Yasuhiro Yoshida, Construction of Seabed Structure by New Development Covering Material Using Fly Ash, 19th Conference on Environment and Mineral Processing, 2015.06.
167. Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Ginting Jalu Kusuma, The Use of Sulfur-bearing Rocks For The Cover Layer To Prevent Acid Mine Drainage (AMD) in The Cover System: Characterization of Rocks , 19th Conference on Environment and Mineral Processing, 2015.06.
168. Akihiro Hamanaka, Hideki Shimada, Shota Ogata, Takashi Sasaoka, Ikuo Miyajima, Utilization of Coal Ash For Preparation of Seedbed in Disturbed Land in Indonesian Open Cut Coal Mine, 19th Conference on Environment and Mineral Processing, 2015.06.
169. Sendy Dwiki, Hideki Shimada, Rudy Sayoga Gautama, Ginting Jalu Kusuma, Takashi Sasaoka, Shinji Matsumoto, Fatimah Koten, Evaluation of Acid Mine Drainage Characterization for Prediction Post Drainage Water Quality in Coal Mines, 19th Conference on Environment and Mineral Processing, 2015.06.
170. Takashi Sasaoka, Akihiro Hamanaka, Shizuo Ikuta, Hideki Shimada, Matsui Kikuo, Geotechnical and Hydrogeological Issues for Development of Underground Coal Mine from Open Pit Highwall in Seashore Region, 5th International Symposium on Mineral Resources and Mine Development, 2015.05.
171. Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Ginting J. Kusuma, Rudy S. Gautama, The key Factors of the improvement of classification Method of Waste Rocks aimed at the Prevention of Acid Mine Drainage, 5th International Symposium on Mineral Resources and Mine Development, 2015.05.
172. Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Matsui Kikuo, Ginting Jalu Kusuma, Rudy Sayoga Gautama, Fundamental Study of Effect of Waste Rock Condition on Control of Acid Mine Drainage at Open Pit Coal Mine in Tropical Regions , VIETROCK 2015 International Symposium , 2015.03.
173. Takashi Sasaoka, Hideki Shimada, Akihiro Hamanaka, Budi Sulistianto, Masatomo Ichinose, Matsui Kikuo, Geotechnical Issues on Application of Highwall Mining System in Indonesia , VIETROCK 2015 International Symposium , 2015.03.
174. Akihiro Hamanaka, Naoya Inoue, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Ikuo Miyajima, Assessment of Soil Erosion at Rehabilitation Area in Tropical Regions Based on Laboratory Experiment , International Symposium on Earth Science and Technology 2014 , 2014.12.
175. Ronald Widjojo, Ganda Marihot Simangunsong, Ridho Kresna Wattimena, SUGENG WAHYUDI, Takashi Sasaoka, Hideki Shimada, Creating a Software to Determine the Underground Blasting Geometry Design , International Symposium on Earth Science and Technology 2014 , 2014.12.
176. Yoshiaki Takahashi, Kento Fukui, Takashi Sasaoka, Akihiro Hamanaka, Hideki Shimada, Matsui Kikuo, Shiro Kubota, Tei Saburi, Numerical Study on Effects of Constructing Trench and Reducing Charge Weight on Blast Vibration in Metal Mine , International Symposium on Earth Science and Technology 2014 , 2014.12.
177. Hirokuni Inoue, Takashi Sasaoka, Hideki Shimada, Akihiro Hamanaka, Matsui Kikuo, Hiroaki Tanaka, Masashi Inoue, Study on Control of Fragmentation Size by Changing Blasting Pattern at Open Pit Metal Mine , International Symposium on Earth Science and Technology 2014 , 2014.12.
178. Deyu Qian, Takashi Sasaoka, Hideki Shimada, Amarsailhan Tsedendorj, Matsui Kikuo, Application of Goaf-side Roadway Retained with Multiple Segments in Deep Underground Coal Mine , International Symposium on Earth Science and Technology 2014 , 2014.12.
179. Sendy Dwiki, Hideki Shimada, Takashi Sasaoka, Imam Fadll, Rudy Sayoga Gautama, Ginting Jalu Kusuma, Fatimah Koten, Mine Void Management Study: Water Quality Assessment of Post Closure in Coal Mining by Using Forward and Inverse Modelling , International Symposium on Earth Science and Technology 2014 , 2014.12.
180. Shinji Matsumoto, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Management of a Large Amount of Potentially Acid Forming for the Prevention of Acid Mine Drainage , International Symposium on Earth Science and Technology 2014 , 2014.12.
181. Naoya Inoue, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Applicability of Fly Ash as a Topsoil Substitute for the Reclamation of Post Mine Area in Indonesian Coal Mine , International Symposium on Earth Science and Technology 2014 , 2014.12.
182. Tri Kalian, Hideki Shimada, Budi Sulistianto, Takashi Sasaoka, Pandu Winarno, SUGENG WAHYUDI, Mohammad Joannes Djuharlan, Matsui Kikuo, Indirect In-situ Stress Determination from Tunnel Deformation Monitoring , International Symposium on Earth Science and Technology 2014 , 2014.12.
183. Kohei Tsujimoto, Purwanto, SUGENG WAHYUDI, Hideki Shimada, Takashi Sasaoka, Ridho Kresna Wattimena, Tri Kalian, Matsui Kikuo, Evaluation of Tangential Stress at Sidewall after Cut and Fill Excavation at Underground Gold Mine , International Symposium on Earth Science and Technology 2014 , 2014.12.
184. Kento Fukui, Takashi Sasaoka, SUGENG WAHYUDI, Hideki Shimada, Matsui Kikuo, Study on Distribution of Rock Fragmentation after Blasting and Development of Its Prediction Method , International Symposium on Earth Science and Technology 2014 , 2014.12.
185. Kento Fukui, Hirokuni Inoue, Takashi Sasaoka, Hideki Shimada, Akihiro Hamanaka, Matsui Kikuo, Shiro Kubota, Tei Saburi, Study on Control Measures for Blast-induced Ground Vibration in Open Pit Metal Mine by Means of Numerical Analysis , 4th Asia-Pacific Symposium on Blasting Techniques , 2014.11.
186. Akihiro Hamanaka, Amarsailhan Tsedendorj, Naoya Inoue, Takashi Sasaoka, Hideki Shimada, Matsui Kikuo, Current Geotechnical Issues in Open Cut Mining in Desert Area in Mongolia , 33rd International Conference on Ground Control in Mining (China) , 2014.10.
187. Hiroshi Takamoto, Takashi Sasaoka, Hideki Shimada, Jiro Oya, Akihiro Hamanaka, Matsui Kikuo, Study on Surface Subsidence due to Longwall Mining Operation under Weak Geological Condition in Indonesia , 33rd International Conference on Ground Control in Mining (China) , 2014.10.
188. Naoya Inoue, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Fundamental Study on Application of Fly Ash as Topsoil Substitute for the Reclamation of Mined Land in
Indonesian Open Cut Coal Mine , Beijing International Symposium Land Reclamation and Ecological Restoration , 2014.10.
189. Donghua Zhang, Akihiro Hamanaka, Naoya Inoue, Takashi Sasaoka, Hideki Shimada, Matsui Kikuo, Stability of Water Content on Dominant Loess Dumping Areas , Beijing International Symposium Land Reclamation and Ecological Restoration , 2014.10.
190. Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Akihiro Hamanaka, Matsui Kikuo, Evaluation of the Current System for Waste Rock Treatment Considering the Rock Conditions in Open Pit Coal Mine, Indonesia , Beijing International Symposium Land Reclamation and Ecological Restoration , 2014.10.
191. Qing Yu, Jinrong Ma, Hideki Shimada, Takashi Sasaoka, Influence of Aquifer Drainage on Land Subsidence in Eastern Chinese Coal Mines , Beijing International Symposium Land Reclamation and Ecological Restoration , 2014.10.
192. Akihiro Hamanaka, Naoya Inoue, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, An Experimental Study for Assessment of Soil Erosion at Rehabilitation Area in Indonesian Coal Mine , Beijing International Symposium Land Reclamation and Ecological Restoration , 2014.10.
193. Tri Karian, Suseno Kramadibrata, Budi Sulistianto, Hideki Shimada, Takashi Sasaoka, SUGENG WAHYUDI, Matsui Kikuo, Surface Subsidence Prediction of longwall Underground Coal Mining Prototype by Using Numerical and Empirical Method , 2014 ISRM International Symposium and 8th Asian Rock Mechanics Symposium , 2014.10.
194. SUGENG WAHYUDI, Hideki Shimada, Ganda Marihot Simangunsong, Takashi Sasaoka, Matsui Kikuo, Fundamental Study on Directional Directional Characters of Site-specific k and b of PPV Prediction Model , 2014 ISRM International Symposium and 8th Asian Rock Mechanics Symposium , 2014.10.
195. Deyu Qian, Takashi Sasaoka, Hideki Shimada, SUGENG WAHYUDI, Amarsailhan Tsedendorj, Cheng WANG, Matsui Kikuo, Analysis Coal Pillar Width and Stability Control of Gob-side Entry Driving in Deep Island Coal Face , 2014 ISRM International Symposium and 8th Asian Rock Mechanics Symposium , 2014.10.
196. Hideki Shimada, Takashi Senda, Takashi Sasaoka, Shuichi Fujita, SUGENG WAHYUDI, Akihiro Hamanaka, Matsui Kikuo, Dai Watanabe, Analytical Study on Soil Behavior and Its Countermeasures Using a Pipe Jacking Method in Deep Strata , International NO-DIG 2014 32nd Internatinal Conference and Exhibition , 2014.10.
197. Fumihiko Matsumoto, Tomo Morita, Eiji Sakai, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, New Pipe-jacking Method in Connecting New Pipeline to the Existing Underground Structure , International NO-DIG 2014 32nd Internatinal Conference and Exhibition, 2014.10.
198. Application of Punch Mining System for Surface Coal Mines in South-east Asian Countries.
199. Numerical Study on Suitable Design for Dumping Site by using Dewatering Cake at Sand Mine
by Shigo Kato, Hideki Shimada, Takashi Sasaoka, Kikuo Matsui, Masatomo Ichinose.
200. Improvement of Blasting Pattern based on the fragmentation analysis at Iwato Mine
by Hiroaki Tanaka, Kenji Shinagawa, Masashi Inoue, Hirokuni Inoue, Hideki Shimada, Takashi Sasaoka.
201. The Current Situation and Future Prospect about Environmental Rehabilitation in Indonesian Coal Mine
by Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Ikuo Miyajima, Masatomo Ichinose.
202. The Current Situation and Future Prospect about Environmental Rehabilitation in Indonesian Coal Mine
by Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Ikuo Miyajima, Masatomo Ichinose.
203. Study on Numerical Analysis on Method of Reducing Blasting Vibration in Open-pit Mine
by Yoshiaki Takahashi, Takashi Sasaoka, Hideki Shimada, Kikuo Matsui, Hiroaki Tanaka, Shiro Kubota, Masatomo Ichinose.
204. Fundamental Study on Application of Fly Ash as Topsoil Substitute for the Reclamation of Mined Land in Indonesian Open Cut Coal Mine
by Naoya Inoue, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Kikuo Matsui, Masatomo Ichinose.
205. Analytical Study on Behavior of Tail Void under Different Cases by Pipe Jacking Method in Deep Strata
by Nana Yuda, Hideki Shimada, Takashi Sasaoka, Kikuo Matsui, Takashi Senda, Masatomo Ichinose.
206. 濱中晃弘, 井上直也, 島田 英樹, 笹岡 孝司, 松井 紀久男, 一ノ瀬政友, USLE式を用いたインドネシア露天掘り鉱山における土壌浸食の評価法に関する検討, 資源・素材2014(熊本), 2014.09, インドネシアでは,石炭のほぼ全量を露天掘りにより生産しているため,程度の多少はあれ,開発・生産に伴い周辺環境に影響を与えることは避けられないため,環境負荷低減型の鉱山開発を行うために,適切なリハビリテーションプログラムを開発初期段階より検討・策定する必要がある。インドネシアは熱帯雨林気候に属しており,年間降雨量が多く,多量の降雨によって土壌浸食が容易に発生する環境であることから,過度の土壌浸食現象により,流出した土壌が河川の川底に堆積し,水質汚濁が引き起こされるだけでなく,植栽基盤としての良質な土壌の流出によってリハビリテーションエリアにおける再緑化の阻害を引き起こす可能性がある。そのため,リハビリテーションエリアの中長期的な維持・管理のためには,対象区域の土壌浸食状態を事前に予測して対策を講じる必要がある。そこで,本報告では降雨に伴う土壌流出量を予測する式として広く一般的に用いられている,USLE式(Universal Soil Loss Equation)を用いた土壌浸食予測に関して各種室内試験および現場調査より検討を行った結果について述べる。.
207. Numerical Study on the Effect of Vibration Proof Wall and Control of Explosive on Blast Vibration at Open Cut Mine

Kento Fukui, Takashi Sasaoka, Hideki Shimada, Kikuo Matsui, Masatomo Ichinose, Shiro Kubota, Tei Saburi.
208. Numerical Study on Deformation Behavior of Tail Void on Deep Pipe-Jacking Operation

Nana Yuda, Hideki Shimada, Takashi Sasaoka, Kikuo Matsui, Takashi Senda, Masatomo Ichinose.
209. Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Challenges in Acidic Water Control by Considering the Effects of Waste Rock Condition, Aachen International Mining Symposium -Sixth International Symposium on High Performance Mining-, 2014.06, Acid Mine Drainage (AMD) problem is considered as one of the serious problems in mining operation in the world. This problem is generated due to sulfide minerals in waste rocks. Sulfide minerals are very commonly included in any types of crustal rocks, resulting in AMD and a negative impact on the ecosystem. In this research, some experiments were conducted with the rocks sampled in the open pit coal mine in Indonesia to understand the effects of the rock condition on acidic water generation. The result indicated that wetting and drying process affected the disintegration of rocks caused by both physical and chemical factors in the rock sample. Hence, AMD generation is promoted due to both factors while waste rocks are stored in tailings in the current system. It suggests that the system for waste rock management should be improved to prevent AMD generation..
210. Takashi Sasaoka, Akihiro Hamanaka, Hideki Shimada, Matsui Kikuo, Nay Zar Lin, Budi Sulistianto, Punch Multi-slice Mining System for Thick Coal Seam Under Weak Geological Conditions, Aachen International Mining Symposium -Sixth International Symposium on High Performance Mining-, 2014.06, Most of coal is produced from open-cut mines in Southeast Asian countries. However, the conditions of their surface mines are worsening each year: the stripping ratio is increasing, approaching economic ratio and the regulation of environmental protection. To meet the demand for coal, underground mines have to be developed in the near future. Under these circumstances, the development of new coal mines from open-cut highwalls are being planned in Southeast Asian countries. Moreover, some of the Southeast Asian mines have thick coal seams. However, if the conventional mining systems and designs introduced in US, Australia and European countries are applied, several geotechnical issues can be expected due to the mines’ weak geological conditions. From these backgrounds, this paper proposed a punch multi-slice mining system with stowing for thick coal seam under weak geoligical conditions and discussed its applicability and suitable design by means of numerical analysis..
211. Fundamental Study of Reduction Effect of Blast Vibration by Using Pre-splitting Method at Limestone Quarry

Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch

Kento FUKUI, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Akihiro HAMANAKA, Shiro KUBOTA, Tei SABURI, Masatomo ICHINOSE.
212. Improvement of Operation by Optimum Blasting Which Is Design by Analysis of Distribution of Fragmentation at Iwato Mine

Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch

Akihiro HAMANAKA, Naoya INOUE, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Ikuo MIYJIMA, Masatomo ICHINOSE.
213. Study of Design of Rockbolt into Roof at Cibaliung Mine, Indonesia

Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch

Yohei TSUJIMOTO, Akihiro HAMANAKA, PURWANTO, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Masatomo ICHINOSE.
214. Study of Applicability of Paper Mulberry on Dumping Site at Open-pit Coal Mine, Indonesia

Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch

Akihiro HAMANAKA, Naoya INOUE, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Ikuo MIYJIMA, Masatomo ICHINOSE.
215. Fundamental Study of Design of Main Entry which is Passed into Fracture Zone at Underground Coal Mine in China

Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch

Yoshinori MIYAMOTO, Deyu QIAN, Akihiro HAMANAKA, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Masatomo ICHINOSE
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216. Naoya Inoue, Akihiro Hamanaka, Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Effective Assessment Methods of Soil Erosion Control in Indonesian Open Pit Mine, 18th Conference on Environment and Mineral Processing, 2014.05.
217. Shogo Kato, Yoshiaki Sakai, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Study on Application of Soil Conditioner Made from Dewatered Sludge to Revegetation Aggregate Mining Site, 18th Conference on Environment and Mineral Processing, 2014.05.
218. Akihiro Hamanaka, Naoya Inoue, Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Ikuo Miyajima, Revegetation for Utilization of Disturbed Land by Paper Mulberry in Indonesian Open Cut Mine, 18th Conference on Environment and Mineral Processing, 2014.05.
219. Study on Blast Vibration and Prediction of Blasting Fragmentation under Different Rock Mass Conditions

73th Annual Meeting of Limestone Association of Japan

Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Shiro KUBOTA.
220. Effect of Specimen Size on Mode I Fracture Toughness by SCB Test

Annual Meeting of The Society of Materials Science

Kojiro UENO, Takahiro FUNATSU, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI

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221. Study on Application of the Soil Improvement Agent to the Post Mine Surface for Revegetation by Using Dewatered Cake in Aggregate Mine

Spring Annual Symposium on the Mining and Materials Processing

Shogo KATO, Yoshiaki SAKAI, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI.
222. Effect of Weathering of Waste Rock to Acid Mine Drinage Generation in Open-pit Coal Mine, Indonesia

Spring Annual Symposium on the Mining and Materials Processing

Shinji MATSUMOTO, Akihiro HAMANAKA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Masatomo ICHINOSE.
223. Assessment of Soil Erosion at the Rehabilitation Area in Indonesian Coal Mine

Spring Annual Symposium on the Mining and Materials Processing

Akihiro HAMANAKA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Ikuo MIYAJIMA, Kikuo MATSUI.
224. Deyu Qian, Takashi Sasaoka, Hideki Shimada, Matsui Kikuo, Cheng Wang, Stability Control of Roadway in Protected Seam of Deep High-gas Multi-seams through Ascending Mining in China, International Symposium on Earth Science and Technology 2013, 2013.12, The number of coal mines with coal and gas outburst is shooting up with mining depth increasing in China. Mining protective coal seam is one of the most effective technologies preventing coal and gas outburst for mining high-gas multi-seams with low permeability. However, the difficulty of controlling roadway stability in upper protected seams above the gob jumps after mining lower protective coal seam. Based on the problem of surrounding rock stability control for roadway in the overlying protected seam of high-gas multi-seams through ascending stress-relief mining in Huainan mining area, the numerical simulation model is established according to actual engineering to analyze the redistribution of stress during roadway excavation and mining lower protective coal seam, and influence of bolt support on fissure and displacement fields of surrounding rock. Support technique of “three-high” bolt support system combined with pre-stressed anchor cable beam structure is put forward that is successfully applied in Guqiao Coal Mine. Field measurement has proved that the deformation of surrounding rock tended to be stable in 41 days after the support scheme was implemented in the roadway that was excavated in the upper protected seam in 150 days after mining the lower protective seam..
225. Mingwei Zhang, Takashi Sasaoka, Hideki Shimada, Matsui Kikuo, Mechanism of Localized Stress Concentration in Interlayer Rock Mass and Its Impact on Deep Multi-seam Mining, International Symposium on Earth Science and Technology 2013, 2013.12, Although the extraction in the stress relaxation zone of deep multi-seam coal mining is relative safely, unnatural accidents still occur occasionally and sometimes threaten worker’s life security seriously. To explore the primary factor that caused these issues, the characteristics of lateral stress reconstruction and floor failure behavior in interlayer rock mass were surveyed based upon a series of field investigations. And both the redistribution of principle stress and phenomenon of interlayer rock failure were analyzed by numerical simulation. Then by the infinitesimal strain method, two types of infinitesimal analysis models in vertical and horizontal direction respectively were created to explore the reason of floor failure behavior and the mechanism of localized stress concentration. And the impact of localized stress concentration in interlayer rock mass induced by the extracted liberated seam on the subsequent extraction of protected seam was discussed finally. Main findings indicate that a certain extent of localized stress concentration in interlayer rock mass induced by the increased lateral stress results in these accidents. Reconstructed lateral stress provides the mechanical conditions for rock element failure; meanwhile the rock failure behavior further aggravates localized stress concentration in its lower half. Based upon the impact of localized stress concentration in interlayer rock mass, an extraction of protected seam is divided into safe, risky and general types, which helps the reliable mining in deep multiple coal seams..
226. Amarsaikhan Tsedendorji, Ryo Yamamoto, Akihiro Hamanaka, Takashi Sasaoka, Hideki Shimada, Matsui Kikuo, Geotechnical Issues of Narynsukhait Open Pit Coal Mine, International Symposium on Earth Science and Technology 2013, 2013.12, Coal production in Mongolia has rapidly increased with the development of new coal mines; from 5 million tons in 2000 to 25 million tons in 2012. However, in accordance with the rapid development of coal mines in Mongolia, geotechnical, operational and environmental issues have occurred such as the stability of highwall/lowwall and dumping/stock piles, the maintenance of transportation system, etc.

Especially, the geotechnical investigation and data are insufficient in main coal deposits. This is main cause of current problems such as slope slides, failures and collapses occurred at most open pit coal mines. In order to develop an appropriate mine design, these investigations have been conducted. In addition, the geological data has to be collected and urgent issues for further coal mine development were discussed.

This paper describes the current conditions of Narynsukhait open pit coal mine and then discusses its geotechnical issues.



The study began with rock and water sampling in Mangkalapi pit and its surrounding. Rock samples were employed for the geochemical composition while the water samples were analyzed for some quality parameters. The simulation on post-mining water quality was conducted using the PHREEQC software. The laboratory kinetic test using Free Draining Column Leach Test was also performed for some selected rock samples.

Simulation was conducted for different scenarios based on the assumed distribution of sulfide minerals in the pit wall. The results of simulation have indicated the potential of acid water with pH value range from 4.48 to 5.10. Scenario of mixing of leachates from different leach columns containing different type of rock samples was also being simulated for comparison.

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227. Purwanto, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Ridho Kresna Wattimena, Support Design of Cut and Fill Mine Method at Underground Gold Mine, International Symposium on Earth Science and Technology 2013, 2013.12, A detailed study to propose new design support systems for underground mine was carried out in this paper. Serious shotcrete failures have often occurred in Cibaliung Underground Gold Mine in Indonesia. Three main rock types, quartz vein as ore body, andesite-breccia altered by clorite-adularia on foot wall abundance and andesite-breccia altered by smectite-illite dominant on hanging wall rock. The cut and fill mining method was selected for this mine in accordance with the geometry of vein, topographic specifications, and annual production rates. Excavation size, distance between stope and decline, depth, and the impact of fault will influence the induced stresses. Different depths in multiple excavations were analyzed in this study especially on decline area. In this study, the engineering properties of rock masses were defined from field and laboratory test for each rock types. Support systems for decline were designed based on the suggestions of the Rock Mass Rating (RMR) system and the Q system of rock mass classification. Induced stress on different levels were calculated to define Stress Reduction Factor (SRF) and applied to predict the support system by Q system..
228. Naoya Inoue, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Ikuo Miyajima, Fundamental Study on Application of Paper Mulberry for Effective Utilization of Post Mine Area in Opencast Coal Mine in Indonesia, International Symposium on Earth Science and Technology 2013, 2013.12, Opencast mine is a typical mining method to product coal in Indonesia and a large scale of disturbed land occurs in this method. Therefore, an appropriate revegetation process must be designed to complete the rehabilitation in the disturbed area. The basic concept of revegetation in opencast mines is the recovery of the nature and ecosystem and the creation of a self-sustaining land surface in the disturbed area involved the creation of conditions suitable for the establishment. However, the productive use in the large scale of disturbed land is considered in recent years. In this study, application of Paper Mulberry as productive use in the disturbed area was discussed by means of several laboratory and field tests. It was revealed that 1) hot-water treatment in 80℃ for 10 seconds is the most effective treatment to improve germinating rate (more than 80%), 2) Paper Mulberry can grow up under the rehabilitation area in Indonesian opencast mine and the growth rate can be improved by the earlier transplanting to the field after seed germination..
229. Kojiro Ueno, Takahiro Funatsu, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Evaluation of Mode I Fracture Toughness in SCB Specimen by Comparison with SR Specimen, International Symposium on Earth Science and Technology 2013, 2013.12, Crack initiation and propagation are key factors affecting rock deformability, strength and hydraulic properties. Fracture toughness is a parameter, which indicates crack initiation or the onset of propagation of a material. A number of standard methods have been proposed to determine the ModeⅠfracture toughness of rock. They include those based on short rod specimen, chevron bend specimen and cracked chevron-notched Brazilian disc specimen. The semi-circular bend (SCB) specimen was suggested in 1984 for testing mode I fracture toughness of rock. Recently, SCB specimen was extended and improved for many other applications by various researchers owing to inherent favorable properties such as its simplicity, minimal requirement of machining and the convenience of testing that can be accomplished by applying 3-point compressive loading using a common laboratory load frame though short rod (SR) specimen is recommended method by International Society for rock mechanics (ISRM). However, there are still rooms to consider for determining the fracture toughness of rock exactly by SCB specimen. This paper discusses the application of the SCB specimen for determining the fracture toughness of rock by comparison between the result of SCB specimen and SR specimen with Isahaya sandstone and Kimachi sandstone, and size effect using the SCB specimen..
230. Akihiro Hamanaka, Naoya Inoue, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Ikuo Miyajima, Several Considerations on Soil Erosion at the Rehabilitation Area in Indonesian Coal Mine, International Symposium on Earth Science and Technology 2013, 2013.12, Indonesia produces over 350Mt of clean coal in 2012 and is the second largest coal exporter to Japan, accounting for 30 Mt/y. Almost of the coal produced is from open cut mines. Mining operation of open cut mines gives serious impacts on surrounding environment. Therefore, an appropriate rehabilitation program has to be taken into consideration when the mine plan is designed.

Indonesia belongs to tropical rainforest climate and the average annual rainfall shows 2,000~4,000mm/year. One of major environmental problem occurred in rehabilitation area is soil erosion due to heavy rainfall. Soil erosion is easy to accelerate under the high rainfall level, especially in sharp cloudbursts such as squall.

From series of investigation and discussion, the soil spread to rehabilitation area shows different soil composition due to mixing overburden during soil stripping and stockpiling process. Moreover, it can be expected that this condition could be critical factor for the risk of soil erosion. Therefore, adequate rehabilitation process to limit soil erosion has to be considered such as establishment of erosion control structures and rapid growing cover crop species.

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231. Analytical Study of Thrust and Behavior of Soil on Double Pipe Roof Jacking Method

Nana YUDA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Toru SATO

24th Symposium on Japan Society for Trenchless Technology, November 2013

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232. Study on Settlement of Surrounding Soil and Its Countermeasures during Pipe Jacking Construction in the Deep Strata

Yasutaka MAEDA, Takashi SENDA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI

24th Symposium on Japan Society for Trenchless Technology, November 2013.
233. Shitoku Shibata, Nay Zar Lin, Hideki Shimada, Akihiro Hamanaka, Takashi Sasaoka, Matsui Kikuo, Pipat Laowattanabandit, Three Dimension Numerical Modeling of Underground Mining Method at Mae Moh Lignite Mine in Thailand, The 7th International Conference on Earth Resources Technology, 2013.11, Mae Moh mine is the largest open-pit lignite mine in Thailand. In this mine, the development of underground mine from final highwall is considered after the surface mining operation is finished. Longwall mining is a common method for extracting coal from various thickness of coal seam. However, due to unfavorable geological conditions such as weak strata and huge final pit slopes, various preliminary studies on the introduction of underground mining systems have been conducted so far. This paper discusses the applicability of longwall mining system and its suitable design by means of three-dimensional numerical modeling: FLAC3D..
234. Naoya Inoue, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Ikuo Miyajima, Effect of Soil Composition on Growth of Paper Mulberry at Post Mine Surface in Open Pit Coal Mine, The 7th International Conference on Earth Resources Technology, 2013.11, Open cut mining is the typical mining method to produce coal in Indonesia and it gives serious impacts on surrounding environment. Therefore, an appropriate rehabilitation program has to be designed. The basic concept of rehabilitation in open cut mines is the creation of a stable and self-sustaining land surface. Hence, the soil characteristics and adequate selection of species to plant in rehabilitation area have to be considered. This paper describes the current situations in rehabilitation area at one of open cut coal mine in Indonesia and then discusses the effect of soil composition for growth of Paper Mulberry as one of effective species planted in post mine surface based on the laboratory tests. .
235. Kojiro Ueno, Takahiro Funatsu, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Effect of Specimen Size on Mode I Fracture Toughness by SCB Test, The 7th International Conference on Earth Resources Technology, 2013.11, The semi-circular bend (SCB) specimen was suggested in 1984 for testing mode I fracture toughness of rock. Recently, SCB specimen was extended and improved for many other applications by various researchers due to ease in handling though short rod (SR) specimen is recommended method. However, there are still rooms to consider for determining the fracture toughness of rock exactly by SCB specimen. This paper discusses the application of the SCB specimen for determining the fracture toughness of rock by comparison between the result of SCB specimen and SR specimen, and size effect using the SCB specimen..
236. Shinji Matsumoto, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Study on Occurrence of Acid Mine Drainage Inner Part of Dumping Site at KPC Coal Mine, Indonesia, The 7th International Conference on Earth Resources Technology, 2013.11, Acid Mine Drainage (AMD) is one of the serious problems which are caused in the mining operation and it may impact on the ecosystem due to low pH. Considering the fact that the dumping site is a large stockpile of waste materials and it is always exposed to the local climatic conditions, this area can be deemed as one of the sources of AMD. Therefore, it is important to prevent the occurrence of AMD from dumping site after constructng it. This paper describes the results of field investigation and laboratory experiment about AMD problem, and discuss the relevancy between the inner structure of dumping site and the occurrence of AMD. .
237. Taisuke Yamaguchi, Takashi Sasaoka, Hideki Shimada, Akihiro Hamanaka, Matsui Kikuo, SUGENG WAHYUDI, Hiroaki Tanaka, Shiro Kubota, Study on the Propagation of Blast-induced Ground Vibration and Its Control Measure in Open Pit Mine, 22nd Mine Planning and Equipment Selection, 2013.10, In modern mining industry, the blasting technique is one of the most adopted techniques for rock excavation and fragmentation due to its economical and efficient aspects. However, compared with other methods, the use of explosives in blasting is limited by law as it may have a severe impact on the surrounding environment such as vibration, noise and dust. Especially, a ground vibration induced by blasting has to be paid much attention in the mining operation as it may give an obvious impact on the surrounding facilities and buildings and in many established safe level blasting criteria, the ground vibration level is characterized by using three parameters; duration, amplitude (peak particle velocity :PPV) and frequency. Current studies on the blast-induced ground vibration focus on two parameters amplitude and frequency that suggested by USBM when the concerned subject is structure, i.e.. Hence, the control of PPV and dominant frequency are very important in order to design an appropriate blasting standard and minimize its environmental impacts.

This paper discusses the propagation behavior of blast-induced ground vibration in the open pit mine and study by means of field experiments and numerical simulation. In addition, the methods for reduction of blast-induced ground vibration are also discussed by means of numerical simulation in this study.

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238. Sitoku Shibata, Nay Zar Lin, Hideki Shimada, Akihiro Hamanaka, Takashi Sasaoka, Matsui Kikuo, Pipat Laowattanabandit, Preliminary Study on Design of Longwall Mining from Final Highwall at Mae Moh Lignite Mine in Thailand
, 22nd Mine Planning and Equipment Selection, 2013.10, The EGAT Mae Moh lignite mine is the largest open-pit coal mine in Thailand. The total geological and economical reserves of Mae Moh coal field are approximately 1,140 Mt and 825 Mt, respectively. The annual production is 12 Mton, which represents 90 % of the total coal production in Thailand, and tends to decrease gradually. In this mine, the development of underground mine from final highwall is considered after the open-pit mining operation is finished. Longwall mining is one of the common methods for extracting coal in various thickness of coal seams and is much more effective, productive and safer than any other mining methods. The productivity of longwall mining is potentially high because it is basically a continuous operation requiring fewer workers and allowing a high production rate to be sustained. Due to unfavorable geological and geotechnical conditions such as weak strata and huge final pit slopes in this mine, however, various studies on the introduction of underground mining systems have been conducted so far. Optimizing boundary and/or safety pillars and panel design for both safety and economics is a key part of planning longwall mines. This paper discribes the applicability of the longwall mining system from final highwall and its suitable design taking the slope stability into consideration by means of three-dimensional explicit finite-difference program FLAC3D producted by ITASCA..
239. Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Study on the Water Quality Prediction of Acid Mine Drainage from Many Different Perspectives, 22nd Mine Planning and Equipment Selection, 2013.10, Acid Mine Drainage (AMD) is one of the serious problems which are caused in the mining operation. The main factors which cause the problem are H2O and O2 and sulfide minerals such as iron pyrite. Sulfide minerals are usually contained in any type of crustal structure, and there is a possibility of generation of AMD in any area. The problem may impact on the ecosystem or people in the surrounding area since the acidic water is low-pH and usually contains high level of heavy metals. Therefore, it is important to prevent the problem in mining operation. A passive treatment is low-cost and easy to maintain for dealing with AMD problems. In a passive remediation, the study on behavior of AMD generation and elution behavior of heavy metals in a laboratory is necessary before introducing it in the mine site to construct it designed for the situation. Moreover, elution behavior may be changed by management of waste rock, as a practical matter, acidic water generates due to a rough treatment of waste rock in some mine sites. Therefore, in this research, the study on the waste rock was conducted for predicting a quality of acidic water by characterizing the rock and for elucidating effects of treatment of waste rock to elution behavior of heavy metals. This paper describes the results of laboratory experiments such as a column test and a sequence extraction for predicting elution behavior of heavy metals and an occurrence of acidic water, and treatment of waste rock for effective countermeasure for dealing with acidic water for a long term is discussed..
240. Akihiro Hamanaka, Naoya Inoue, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Ikuo Miyajima, Study on Backfilling of Soil for Revegetation at the Rehabilitation Area in Indonesian Coal Mine, 22nd Mine Planning and Equipment Selection, 2013.10, Mining operation of open cut mines gives serious impacts on surrounding environment such as disturbance of the tropical rainforest, the pollution of surface and/or ground water, subsidence and erosion. Under such situations, rehabilitation is one of the important and considerable topics for an environment protection. Adequate rehabilitation program will solve these environmental issues and recover the ecosystem. The basic concept of rehabilitation in open cut mines is the creation of a stable and self-sustaining land surface in post mine surface involved the creation of conditions suitable for the establishment and permanent development of a dense cover of vegetation. In usual, a lot of open cut mine keep the topsoil individually in the natural forest during soil stripping process and spread the topsoil to rehabilitation area for success of revegetation. However, there are some considerable points for dealing with topsoil in situ such as the soil properties and severe compaction by heavy equipment. Therefore, the proper topsoil management has to be considered for establishment of vegetation in post mine surface.

This paper describes the current situations of rehabilitation at one of open cut coal mine in Indonesia and the results of investigation about the characteristics of soil spread in rehabilitation area as plant base.

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241. Hideki Shimada, Yasuhiro Yoshida, Yasutaka Maeda, Takashi Sasaoka, Shuichi Fujita, Akihiro Hamanaka, Matsui Kikuo, Development of Grouting Material for Fly Ash Backfilling by Application of Chemical Injection, 22nd Mine Planning and Equipment Selection, 2013.10, Generally, grouting in dam construction is the construction method that soil voids and crack around borehole is filled by pressurized injection of grouting material such as cement and permeability or mechanical characteristics of rock mass is improved.

It was previously mentioned that backfilling material plays an important role as a support against overburden pressure after finishing construction. Therefore most of the underground deformations caused by the injection may be caused by changing the condition of surrounding rock masses and numbers of cracks. That is why the discussion of appropriate injection methods, etc. in preparation for such changes is inevitable. From this point of view, the new backfilling material can be developed for several kinds of soil conditions in this paper. .
242. 島田 英樹, Yasutaka Maeda, Takashi Senda, 笹岡 孝司, 藤田 修一, 松井 紀久男, Yasuhiro Yoshida, Dai Watanabe, Development of Backfilling Injection into Over-cutting Area Including Lubricant Behavior for Pipe Jacking in Deep Strata, 2013 International NO-DIG, 2013.09, In Japan when urban infrastructures need to be constructed, the difficulty of utilizing the ground or shallow strata will necessarily lead to the more frequent use of the deep strata. The common construction methods are open-cut, pipe jacking, and shield methods. In recent years a new pipe jacking method has been established that can be adapted to 20 m below the ground or more. Using the method, the drivage machine and the jacking pipe continue to move an underground until the completion of the driving. Therefore an over-cutting area (so-called tail-void) must be formed to lower the friction between the ground and the pipe. The over-cutting area is filled with lubrications. However, because the stress release of the ground continues to advance when the over-cutting area is formed, there are some challenges required to cope with the stability of the surrounding ground. In order to utilize the pipe jacking method in the deeper strata layers, the theory, analysis and installation of over-cutting area have to be systemized, and such systematic data must be stored. Therefore, the conditions of over-cutting area in the deep pipe jacking method are discussed using numerical analyses. Moreover, a lubricating material comprised of a mixture of surfactant and fly ash was developed for the application of pipe jacking in deep strata..
243. Fumihiko Matsumoto, Tomo Morita, Eiji Sakai, 島田 英樹, 笹岡 孝司, 松井 紀久男, Application of a Rectangular Pipe Jacking Machine for Pipeline Construction under Important Expressway, 2013 International NO-DIG, 2013.09, Today's pipe jacking technology in Japan is used as a construction method for pipe lines, such as water, sewer and power supply. This method has been achieved remarkable progress with the development of technical infrastructure. Usually, circular pipes are used for pipe line construction. Recently, various infrastructures are buried underground, and the effective use of underground is demanded. From this situation, demands of the pipe line construction using rectangular pipes are increasing gradually. To cope with these demands, the Box Culvert Pipe Jacking Method using rectangular pipe jacking machine was developed and has been used for rectangular pipe line construction.

This paper introduces about the characteristics and applicability of the rectangular pipe jacking method and shows the rectangular pipe line construction case using rectangular pipe jacking machine.

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244. Study on Application of Hume Pipe on Pipe Jacking at Deep Strata

Nana YUDA, Takashi SENDA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI

The 34th West Japan Symposium on Rock Engineering.
245. Application of Longwall Mining System at Mae Moh Lignite Mine.
246. Study of Propagation Property by Blasting at Open Pit Mine

Taisuke YAMAGUCHI, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Sugeng WAHYUDI, Masatomo ICHINOSE, Masashi INOUE, Shiro KUBOTA

The 34th West Japan Symposium on Rock Engineering.
247. Purwanto, 島田 英樹, 笹岡 孝司, 松井 紀久男, Ridho Wattimena, Simulation Study of Support Design of Cut and Fill Mine Method at Underground Gold Mine, The 6th International Symposium of In-situ Rock Stress, 2013.08, In the last decade, the price of gold continues to rise, that generate mining activities increase linearly. Indonesia is one of the top ten gold producers in the world. One of the gold mines in Indonesia is Cibaliung Underground Gold Mine where located in west part of Java Island. Follows the trend, increasing production will be further target of this company.

The type of ore of Cibaliung underground gold mine is vein with low sulphidation. Basaltic andesite, andesite porphyritic, andesite breccia and vein breccia are constituent rocks and altered by smectite and chlorite. The mining method that carried out this mine is relative similar with some underground gold mines in Indonesia (Pongkor and Nusa Halmahera Mining) i.e. cut and fill mining method. For underground mine, geological information is a key to design such as geological structure, rock mass classification, discontinuities, and other geological parameters. They are linked each other. Four types support system has been recommended in Cibaliung mine. However some cracks still occurred in shotcrete support system along decline access. This paper discusses about support design of cut-and-fill mine method at underground gold mine. Commercial software namely Phase2 is used to review the stability of support system. Rock mass classification includes Q system and RMR, and laboratory tests were carried out to determine parameter for numerical modeling analysis..
248. 笹岡 孝司, Yanlong Chen, 島田 英樹, Akihiro Hamanaka, 松井 紀久男, Appropriate Mining System for Residual Coal around End-slopes in Chinese Surface Coal Mines, 32nd International Conference on Ground Control in Mining, 2013.08, Due to large mining depths, sometimes the stripping ratio becomes so large that some coal around the end-wall cannot be mined considering the economic factors at large-scale open pit coal mines in China. Also, to meet requirements of haul roads in the end-wall transporting system, wide transportation benches have to be left, which makes the slope angle of the end-wall slope smaller. Consequently, a large quantity of coal has to be left under the final end-wall slope. For these remaining coal resources, they will be buried again by the inpit dumping site and are impossible to be extracted once more in future. Therefore, how to recover the remaining coal around the end-wall slope with a safe and efficient extraction system before they are buried by the inpit dump is very urgent and valuable research for open pit coal mines in China. .
249. Nana Yuda, Takashi Senda, Yasutaka Maeda, 島田 英樹, 笹岡 孝司, 松井 紀久男, Fundamental Study on Deep Underground Pipe Construction Using a Pipe Jacking Method, 8th International Forum on Strategic Technology 2013, 2013.06, This paper describes a fundamental study on deep underground pipe construction using a pipe jacking method. This study is aimed to discuss the probability of failure under constructing pipe in deep underground. The study has been carried out using a numerical simulation method. The 3D-σ was used to analyze the failure proximity. The failure proximity is based on the failure criterion of Mohr-Coulomb. This study was carried out by changing some influential parameters of the condition of the pipe and surrounding ground i.e. overburden, thickness of pipe, friction resistance, and aberration from the center of distributed force in order to grasp a response of the failure proximity. The simulation result shows that the failure proximity of the pipe rises with increasing overburden, friction resistance and aberration from the center of the distributed force, while on the other hand the failure proximity reduces by increasing thickness of the pipe. .
250. Ryo Yamamoto, Akihiro Hamanaka, Donghua Zhang, 笹岡 孝司, 島田 英樹, 松井 紀久男, Study on Formation of Dumping Site at Open Pit Mine in Desert Area, 8th International Forum on Strategic Technology 2013, 2013.06, Dumping area consists of the artificial slope which had been piled up by the mining waste granular. Dumping operation is one of the important works in open-pit mines. Overburden is stripped and waste soil/rock is transported to dumping area in order to expose and extract coal seams. Dumping operation is to transport waste rock from mining working face to dumping areas, and then form benches for slope stability and rehabilitation. This work spends much cost and represents a significant investment. Waste embankments usually have little if any practical use and may represent a long-term liability in the form of a potential source of pollution or stability hazard. Because of economic considerations, a risk of slide and a potential of its environmental impacts, dumping sites must be designed carefully.
However, the systematic researches on the stability of dumping sites are quite few and the large scale landslides still occur in the dumping sites. For instance, on October 29, 1991, a large slide which volume was about 10 Mm3 was occurred in the south external dumping site of Antaibao open pit mine in China. This slide caused 6 fatalities and many facilities loss. At present, a greater effort must be paid for the design and formation of appropriate dumping sites in order to save the investment, maintain the stability of dumping sites, mitigate the environmental impacts, and promote a long-term reclamation.

Moreover, in dessert area for instance north-west China and Mongolia, the dumping material is “loess” and landslides and subsidence often occur in their dumping sites. One of the major causes is the characteristics of loess. The strength of loess changes dramatically due to its water content and it becomes to be low under wet condition. The systematic researches on the stability of dumping sites of loess are also quite few because the property of loess is very unique.
This paper describes the present conditions of dumping sites in open pit coal mines and then discusses the formation mechanism of dumping piles under different conditions based on the results of laboratory tests.

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251. Akihiro Hamanaka, Naoya Inoue, 島田 英樹, 笹岡 孝司, 松井 紀久男, 宮島 郁夫, Fundamental Study on Revegetation of Post Mine Surface by Paper Mullberry in Open Cut Mine, 8th International Forum on Strategic Technology, 2013.06, Indonesia produces over 350Mt of clean coal in 2012 and is the second largest coal exporter to Japan, accounting for 30 Mt/y. Almost of the coal produced is from open cut mines. Mining operation of open cut mines gives serious impacts on surrounding environment. Therefore, an appropriate rehabilitation program has to be taken into consideration when the mine plan is designed. The basic concept of rehabilitation in open cut mines is the creation of a stable and self-sustaining land surface in post mine surface involved the creation of conditions suitable for the establishment and permanent development of a dense cover of vegetation. Hence, the soil characteristics in rehabilitation area and adequate selection of species to plant in there have to be considered.
This paper describes the current situations in rehabilitation area at one of open cut coal mine in Indonesia and then discusses the application of Paper Mulberry as one of effective species planted in post mine surface based on the laboratory tests.

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252. Amarsaikhan Tsedendorji, 濱中晃弘, 島田 英樹, 笹岡 孝司, 松井 紀久男, Study on Exploration Procedures and Optimization of Opencast Mining Parameters for Deeper Coal Deposits, 8th International Forum on Strategic Technology 2013, 2013.06, Deep coal deposits tend to be explored and have more exploitation according to certain procedures, and if its correlation with opencast mining scales on the ground surface is defined properly, it will be an important issue of theory and practice. This paper describes the technical issues on the procedures of exploration and the optimization of the opencast mining parameters. .
253. 島田 英樹, 吉田 安廣, 千田 尚, 前田 泰孝, Takashi Sasaoka, 藤田 修一, 松井 紀久男, 渡辺 大, Development of Backfilling Material Using Fly Ash by Application of Chemical Injection, 17th Conference on Environment and Mineral Processing, 2013.06, Lubrication can effectively reduce the needed thrust if a discrete layer of lubricant is maintained between a pipe and the excavated soil. A lower frictional force allows greater jacking lengths to be achieved. The reduction of frictional stress around the pipe strongly affects the efficiency of lubrication injection. The lubricant must be designed to form a layer in the surrounding soil, be pressurized to overcome ground water pressure and stabilize the over-cutting area. The lubricant should also fill the over-cutting area completely to minimize surface settlement. However, for a commercial lubricant to be effective, it has been suggested that ingredients such as sodium and potassium be eliminated. As a result, in order that a lubricant does not lose its function as a support against the overburden pressure of an over-cutting area and to enable a reduction in thrust, a higher quality lubricant which can overcome these problems must be developed as soon as possible. In this paper, in order to examine the characteristics and behaviour of a material developed as a lubricant and backfilling for a deeper strata excavation system such as a pipe jacking, a fundamental investigation is performed and the various results are discussed..
254. 笹岡 孝司, 島田 英樹, 竹内啓介, 濱中晃弘, 松井 紀久男, 佐々木誠, 林克彦, Development of Multi-layer Structure Bit and Its Suitable Design for Tunnel Drivage Machine, Aachen International Mining Symposia (AIMS 2013) Fourth International Symposium Mineral Resources and Mine Development, 2013.05, Tunnel drivage machines, such as the shied machine, are now widely applied for the construction of underground space. In recent years, the distance of their construction span has been increasing and the shield tunneling system can be applied for ground that contains cobble stones and gravel soil. Therefore, the application of a shield drivage machine has become wider due to their advanced technology. However, once the conventional cutter bit hits with cobble stone and/or a boulder stone, the cutter bit fails and the cutting efficiency decreases dramatically or is completely lost. Therefore, the improvement of the impact resistance of their cutter bit is one of the major research topics for a shield tunneling system.
This paper describes the multi-layer structure bits developed in our research and discusses the impact resistance and suitable design by means of laboratory tests and numerical simulation.
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255. Numerical Simulation on Propagation of Blast-induced Ground Vibration in Open Pit Mine.
256. Study on Application of Highwall Mining system at Mae Moh Coal Mine in Thailand.
257. Study on Topsoil for Revegetation at the Rehabilitation Area in the Indonesian Coal Mine.
258. Analytical Study on Behavior of Improved Surrounding Soil by Grouting during Pipe Jacking Construction in the Deep Strata.
259. Study on Formation of Dumping Site for Controll of Acid Mine Drinage at Surface Coal Mine in Indonesia.
260. Experimental Study on Formation of Dumping Piles at Open Pit Mine.
261. Experimental Study on Formation of Dumping Piles at Open Pit Mine.
262. Study on Rehabilitation by using Soil Improvement Agent Including Dewatered Cake in Aggregate Mine.
263. Study on Improvement Effect of Soil Improvement Agent by Using Dewatered Cake in Aggregate Mine.
264. Study on the Predicting the Displacement of the Ground after Restoration Method by Using Grouting Material.
265. Study on the Application of Bolt Support System for Underground Coal Mines in Indonesia
Hiroshi TAKAMOTO, Jiro OYA, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Akihiro HAMANAKA, Masatomo ICHINOSE
Fall Annual Symposium on the Mining and Materials Processing
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266. Study of Improvement of Soil Properties on Revegetation in Aggregate Mining Site
Shogo KATO, Yoshiaki SAKAI, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Masatomo ICHINOSE
Fall Annual Symposium on the Mining and Materials Processing
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267. Study on Behavior of Surrounding Soil duirng the Jacking Operation Using Deep Pipe Jacking Method
Takashi SENDA, Yasutaka MAEDA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Masatomo ICHINOSE
Fall Annual Symposium on the Mining and Materials Processing
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268. Mechanical Issues of Chainsaw Type Drivage Unit and Development of Counter-measure
Shizuo IKUTA, Kikuo MATSUI, Hideki SHIMADA, Takashi SASAOKA, Yoshishige MASUDA, Masatomo ICHINOSE
Fall Annual Symposium on the Mining and Materials Processing
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269. Study on Fundamental Characteristics of Backfilling Material by Pipe Roof Jacking Method
The 33rd West Japan Symposium on Rock Engineering, August 2012
Sota IMAHASE, Takashi SENDA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Toru SATO, Masatomo ICHINOSE, Yasuhiro YOSHIDA
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270. Several Consideration on Construction by Using Pipe Jacking at Deep Strata
The 33rd West Japan Symposium on Rock Engineering, August 2012
Yasutaka MAEDA, Takashi SENDA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Tomo MORITA, Masatomo ICHINOSE
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271. Study on Stability of Surrounding Soil Using Pipe Roof Method by Pipe Jacking
The 33rd West Japan Symposium on Rock Engineering, August 2012
Shunya AOYAMA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Toru SATO, Masatomo ICHINOSE
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272. Study on Impact Resistance and Abrasibity of Cutter Bit for Shield Machine
The 33rd West Japan Symposium on Rock Engineering, August 2012
Keisuke TAKEUCHI, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Katsuhiko HAYASHI, Makoto SASAKI
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273. Study on Prediction Equation of Soil Erosion at Rehabilitation Area in Open-cut Coal Mine, Indonesia
Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch
Jin OKAZAKI, Sri MARYATI, Akihiro HAMANAKA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Masatomo ICHINOSE
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274. Fundamental Study on Optimum Design of Dumping Site at Open-cut Coal Mine
Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch
Ryo YAMAMOTO, Akihiro HAMANAKA, Donghua ZHANG, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Masatomo ICHINOSE
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275. Analytical Study on Propagation Properties of Blast Vibration at Limestone Quarry
Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch
Taisuke YAMAGUCHI, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Akihiro HAMANAKA, Yuji OGATA, Shiro KUBOTA, Masatomo ICHINOSE
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276. Practical Study of Thrust and Behavior of Soil on Pipe Roof Pipe Jacking Method. 22nd Symposium on Japan Society for Trenchless Technology, November 2010. Shunya AOYAMA, Toru SATO, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI.
277. Study of Behavior on Thrust and Settlement of Surrounding Soil in Deep Pipe Jacking Method. 22nd Symposium on Japan Society for Trenchless Technology, November 2010. Yasutaka MAEDA, Takashi SENDA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI .
278. Study on the subsidence due to underground mining operation in Indonesia.
279. Study on application of CCC System for Enviroment and Disaster prevention..
280. Study on slope stability in aggregate mine.
281. Prediction of injection behavior of grouting material and ground behavior on the restore grouting method..
282. Study on ground behavior, condition of over cutting area, and thrust in deep pipe-jacking method..
283. Study on the ground behavior aroud the surface when piperoof was constructed by using sully pipe-jacking .
284. Study on Underground Mininig System with Stowing for Ultra Thick Coal Seam in Mae Moh Coal Mine in Thailand.
285. Application of chain conveyor cutter for reinforcement of shaft lining at coal mine in Eastern China .
286. Study on soil and water pollution at Maamba coal mine, Zambia.
287. Application of punch mining system in Indonesian coal mine.
288. Study on ground behavior of pipe-roof construction using pipe-jacking method.
289. Study on Abrasivity of Shield Type Cutter Bit
Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch
Keisuke TAKEUCHI, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Katsuhiko HAYASHI, Makoto SASAKI
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290. Study on Optimum Design of Underground Coal Mine at New Development Area in Indonesia
Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch
Hikaru SHIMADA, Hiroshi TAKAMOTO, Akihiro HAMANAKA, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Masatomo ICHINOSE
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291. Study on Behavior of Surrounding Soil by Using Pipe Roof Pipe Jacking Method
Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch
Shunya AOYAMA, Toru SATO, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Shigemitsu SUNABE
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292. Examination Concerning Modeling Numerical Analysis in Various Jacking Methods with Different Digging Mechanism
21th Symposium on Japan Society for Trenchless Technology, November 2010
Nozomu HIRAISHI, Toru SATO, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI .
293. Study on Relatively between the Behavior of Grouting Material in the Soil and the Deformation of the Soil with the Restoration Grouting for Pipeline Position
21th Symposium on Japan Society for Trenchless Technology, November 2010
Masashi KOMURA, Koichi ARAKI, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI .
294. Geotechnical Issues on Development of Underground Coal Mine in Indonesia.
295. Some Issues on eco-friendly development of coal mine from the rock mechanics point of view.
296. Experiment Study on Deformation of Soil on Grount Injection Using Pipeline Restoration Method.
297. Effect of piperoof construction on the surrounding soil by using pipe-jacking method.
298. Study on Slope Stability at Surface Mine Located near Populated Areas
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299. Effect of Pillar Shape on Stability of Openings/Pillars in Highwall Mining System
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300. Fundamental Study on Stability of Shaft on Grout Injection into Deep Alluvium Seam in Eastern China.
301. Development of Appropriate Rehabilitation System at KPC Coal Mine, Indonesia
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302. Exparimental Study on Effect of rock properties, bedding planes and joints on blast vibration at Limestone Quarries
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303. Study on Applicability of Highwall Mining System at Mae Moh Coal Mine, Thailand
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304. Study on Behavior of Surrounding Soil under Different Drivage Mechanisms in Pipe Jacking Method
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305. Effect of Shape of Pillar on Stability of Highwall Mining System
Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch
Shunsuke YAMAGUCHI, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Hiroshi TAKAMOTO .
306. Control of AMD by Multi Cover System Using NAF/PAF Waste Rocks
Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch
Koh HIROTO, Ginting Jalu KUSUMA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Masatomo ICHINOSE, Jiro OYA, Hiroshi TAKAMOTO .
307. Study on Application of Highwall Mining System to Mae Moh Coal Mine, Thailand
Spring Annual Meeting on the Mining and Materials Processing, Kyushu Blanch
Akihiro HAMANAKA, Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Masatomo ICHINOSE, Hiroshi TAKAMOTO .
308. Study on slope stability at a surface mine located near populated areas .
309. Effect of characteristics/conditions of rocks on blast vibration at limestone quarry.
310. Study on seepage behavior of grouting material by chemical grouting for lifeline restoration method.
311. Study on behavior of surrounding soil under different drivage mechanisms in pipe-jacking method.
312. Preliminary study on planting of mined land at an aggregate mine.
313. Study on application of highwall mining system in Mae Moh Coal Mine, Thailand.
314. Numerical Study about the Transmission of Thrust Force in Rectangular Pipe Jacking
Tomo MORITA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Fumihiko MATSUMOTO, Eiji SAKAI
The 38th Symposium on Rock Mechanics .
315. Applicability of High Density Slurry Pipe Jacking Method for Cobble Layer with Multi Curve and Long Distance
Fumihiko MATSUMOTO, Tomo MORITA, Eiji SAKAI, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI
The 38th Symposium on Rock Mechanics .
316. An Application of the Japanese Pipe Jacking Technology for NEWater Project in Singapore
20th Symposium on Japan Society for Trenchless Technology
Toru SATO, Tony SUZUKI, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI .
317. Fundamental Study of the Behavior of Grouting Material in the Soil in the U.G.S. Method
20th Symposium on Japan Society for Trenchless Technology
Masashi KOMURA, Koichi ARAKI, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI .
318. Study on Bolt Support Sysem at Satui Coal Mine in Indonesia
Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI
Fall Anual Symposium on the Mining and Metarials Processing .
319. Tasks and Condition of Closed Type Box Pipe Jacking Machine in Using Rectangular Pipe Jacking
Tomo MORITA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Fumihiko MATSUMOTO, Eiji SAKAI
Fall Anual Symposium on the Mining and Metarials Processing .
320. Restoration Grouting of Pipeline Position for Pipe Renewal Method
Koichi ARAKI, Hideki SHIMADA, Takashi SASAOKA, Masatomo ICHINOSE, Kikuo MATSUI
Fall Anual Symposium on the Mining and Metarials Processing .
321. The Application of DEYNO Pipe Jacking Method for the Big Cobble and Rock Layer by Long-distance
Fumihiko MATSUMOTO, Tomo MORITA, Eiji SAKAI, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI
12th Japan Symposium on Rock Mechanics .
322. Development of Rectangular Pipe Jacking Machine for Box Culvert Pipe Line Construction
Tomo MORITA, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Fumihiko MATSUMOTO, Eiji SAKAI
12th Japan Symposium on Rock Mechanics .
323. Fundamental Study of Acid Mine Drainage Problem at Open-cut Coal Mine, Indonesia
Jiro OYA, Hideki SHIMADA, Takashi SASAOKA, Masatomo ICHINOSE, Kikuo MATSUI
12th Japan Symposium on Rock Mechanics .
324. Rainfall Seepage Behavior of Slake-prone Rock and Acid Mine Drainage Problem
Spring Anual Meeting on the Mining and Metarials Processing, Kyushu Blanch
Taisuke MIYAYUMI, Candra NUGRAHA, Jiro OYA, Hideki SHIMADA, Takashi SASAOKA, Masatomo ICHINOSE, Kikuo MATSUI .
325. Analytical Study on Stability of Dumping Site at Open-cut Mine
Spring Anual Meeting on the Mining and Metarials Processing, Kyushu Blanch
Keiji TERADA, Jiro OYA, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI .
326. Rehabilitation for Weak Floor at Berau Coal Mine, Indonesia
Spring Anual Symposium on the Mining and Metarials Processing
Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI, Jiro OYA, Candra NUGRAHA.
327. Lubricant Injected into Over-cutting Area Using Large Diameter Pipe Jacking
Spring Anual Symposium on the Mining and Metarials Processing
Yasuhiro YOSHIDA, Hideki SHIMADA, Takashi SASAOKA, Masatomo ICHINOSE, Shuichi FUJITA, Kikuo MATSUI, Masuhiko Iino .
328. Study on Stability of Soil Using Box Culvert Pipe Jacking
Spring Anual Symposium on the Mining and Metarials Processing
Tomo MORITA, Shohei MUTO, Hideki SHIMADA, Takashi SASAOKA, Mastomo ICHINOSE, Kikuo MATSUI, Fumihiko MATSUMOTO, Eiji SAKAI .
329. Study on Slope Stability at Adaro Coal Mine, Indonesia
Spring Anual Symposium on the Mining and Metarials Processing
Masashi INOUE, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI .
330. Control of Fragmentation by Blasting in Limestone Quarry
Spring Anual Symposium on the Mining and Metarials Processing
Takayuki SASAKI, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI, Hideto SASAKI, Takehiko YOSHIMURA.
331. Acid Mine Drainage Problem at Berau Coal Mine, Indonesia
Spring Anual Symposium on the Mining and Metarials Processing
Jiro OYA, Hideki SHIMADA, Takashi SASAOKA, Masatomo ICHINOSE, Kikuo MATSUI .
332. Appllicability of the DEYNO-crushing Pipe-jacking Machine for the Big Cobble and Rock Layer
Fumihiko MATSUMOTO, Tomo MORITA, Eiji SAKAI, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI
The 37th Symposium on Rock Mechanics .
333. Study on 3D Analysis for Pipe Bursting
Reizo YAMAOKA, Hitoshi WATANABE, Masaya HIRAI, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI
18th Symposium on Trenchless Technology .
334. Analytical Study on Behavior of Surrounding Soil by Culvert Pipe Jacking Method
Tomo MORITA, Shohei MUTO, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Fumihiko MATSUMOTO, Eiji SAKAI
18th Symposium on Trenchless Technology .
335. AMD and Rehabilitation at Tanjung Enim Coal Mine, Indonesia
Jiro OYA, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI
28th West Japan Sumposium on Rock Engineering .
336. Analysis of Blast Vibration for Identification of Blast Damage at Limestone Quarry
Sugeng WAHYUDI, Takayuki SASAKI, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI, Shiro KUBOTA, Yuji OGATA
28th West Japan Sumposium on Rock Engineering.
337. A Laboratory Experiment of Rock Weathering and Its Relationship to Water Quality
Candra NUGRAHA, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI, Jiro OYA, Imanuel MANEGE
28th West Japan Symposium on Rock Engineering .
338. Numerical Study on Stability of Footwall at Opencut Coal Mine in Indonesia
Spring Anual Meeting on the Mining and Metarials Processing, Kyushu Blanch
Masashi INOUE, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI .
339. Observation of Crack Distribution and Effect of Distribution of Fragmentation Size at Limestone Quarry
Spring Anual Meeting on the Mining and Metarials Processing, Kyushu Blanch
Takayuki SASAKI, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI .
340. Application of flyash-surfactant mixtures as a sealing material in the sea
Spring Anual Symposium on the Mining and Metarials Processing
Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Masatomo ICHINOSE, Shuichi FUJITA, Yasuhiro YOSHIDA, Masuhiko IINO, Masakazu MINESHITA, Tatsuya MIZUNUMA.
341. Fundamental analysis of ground movement by pipe bursting and replacement system
Spring Anual Symposium on the Mining and Metarials Processing
Hitoshi WATANABE, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI, Masatomo ICHINOSE, Reizo YAMAOKA, Masaya HIRAI .
342. Roof bolting system in Satui coal mine, Indonesia
Spring Anual Symposium on the Mining and Metarials Processing
Kozo YOSHIMURA, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI .
343. Slaking behavior of argillaceous rocks and AMD issues in Tanjung Enim coal mine, Indonesia
Spring Anual Symposium on the Mining and Metarials Processing
Jiro OYA, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI.
344. Characteristics of blast vibration and size distribution of fragmentation in limestone quarry
Spring Anual Symposium on the Mining and Metarials Processing
Takashi SASAOKA, Hideki SHIMADA, Kikuo MATSUI, Masatomo ICHINOSE, Shiro KUBOTA, Yuji OGATA .
345. Slaking Problem in Opencut Coak Mine in Indonesia
Jiro OYA, Takashi SASAOKA, Hideki SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI
Symposium on Rock Mechanics, 2007 .
346. Case Study on Earth Balance Pipe Jacking for Rock Mass
Tomo MORITA, Fumihiko MATSUMOTO, Eiji SAKAI, Hideki SHIMADA, Takashi SASAOKA, Kikuo MATSUI
Symposium on Rock Mechanics, 2007 .
347. Numerical Study on Stability of Highwall by Highwall Mining
Kozo YOSHIMURA, Hideki SHIMADA, Kikuo MATSUI, Masatomo ICHINOSE, Takashi SASAOKA
Fall Anual Symposium on the Mining and Metarials Processing .
348. Relation between NAG Type and Slaking Behavior at Tanjung Enim Coal Mine, Indonesia
Jiro OYA, Hidek SHIMADA, Masatomo ICHINOSE, Kikuo MATSUI, Takashi SASAOKA
Fall Anual Symposium on the Mining and Metarials Processing .
349. Numerical Study on Stability of Highwall by Highwall Mining
Tomo MORITA, Fumihiko MATSUMOTO, Eiji SAKAI, Hideki SHIMADA, Kikuo MATSUI, Masatomo ICHINOSE, Takashi SASAOKA
Fall Anual Symposium on the Mining and Metarials Processing .