| 1. |
Shear strength characteristics of Ariake clay (Shirakawa samples) in over consolidated region. |
| 2. |
Undrained shear strength characteristics of Ariake clay (Shirakawa samples). |
| 3. |
Consolidation deformation analysis of an embankment foundation ground by finite element method
- In the case of the embankment on Miike-kantaku old Omuta sluiceway site -. |
| 4. |
Hvorslev's strength parameters and irreversibility ratios of Ariake clay(Shirakawa samples) . |
| 5. |
Direct shear strength characteristics of Ariake clay(Shirakawa samples) - Interim report of the results of consolidated constant volume shear box tests -. |
| 6. |
Strength characteristics of Ariake clay(Shirakawa samples) - The results of consolidated and consolidated-swelled constant volume shear box tests -. |
| 7. |
Hvorslev's Strength Parameters and Irreversibility Ratios of Ariake Clay （Yamaashi Samples）. |
| 8. |
Strength characteristics of Ariake clay(Yamaashi samples) - Consideration on the results of consolidated constant volume shear box tests -. |
| 9. |
Strength Anisotropy of Ariake Clay （Yamaashi Samples）. |
| 10. |
Hvorslev's strength parameters and irreversible rario of Mexico city clays. |
| 11. |
Nguyen Thi Lan Huong, Takahiro Higashi, Heavy metal of soil in wastewater-irrigated agricultural soil in a surrounding area of the Nhue River, Vietnam, The fifth international seminar of JSPS core to core program, Collaborative project for soil and water conservation in Southeast Asian watersheds, 2014.08. |
| 12. |
Phanny He, Masami Ohtsubo, Takahiro Higashi, Motohei Kanayama, Shear strength characteristics of the Shiroishi clay from Ariake Bay, Japan, The fifth international seminar of JSPS core to core program, Collaborative project for soil and water conservation in Southeast Asian watersheds, 2014.08. |
| 13. |
Takahiro Higashi, Masami Ohtsubo, Motohei Kanayama, Akiko Nakano, Undrained shear strength characteristics of Ariake clay (Yamaashi samples), The fifth international seminar of JSPS core to core program, Collaborative project for soil and water conservation in Southeast Asian watersheds, 2014.08. |
| 14. |
Application of generalized Hvorslev's failure criterion to Ariake clays (Isahaya-Bay samples). |
| 15. |
Motohei Kanayama, Alexander Rohe, Leon A. Van Paassen, Takahiro Higashi, Examination for predicting ground settlement based on measurement records by using neural network model, Third international seminar of JSPS core to core program, Collaborative project for soil and water conservation in Southeast Asian watersheds, 2013.08. |
| 16. |
Undrained strength characteristics of Ariake clays (Yamaashi samples). |
| 17. |
Direct Shear Strength Characteristics of Ariake Clay（Yamaashi Samples）. |
| 18. |
Motohei Kanayama, Masataka Akashi, Masami Ohtsubo, Takahiro Higashi, Cementation of soil due to microbial activity using waste oyster shell, First international seminar of JSPS core to core program, Collaborative project for soil and water conservation in southeast Asian watersheds,First international seminar of JSPS core to core program, 2012.08. |
| 19. |
Nakano, A., Ohtsubo, M., Higashi, T. and Kanayama M.(2007): Sorption and biodegradation of heavy oil by peat moss, Proc. of the Annual Meeting 2007 of the Japanese Society of Irrigation, Drainage and Rural Engineering, Matsue, Japan, pp.576-577(in Japanese).. |
| 20. |
Nakano, A., Ohtsubo, M., Higashi, T., Kanayama M. and Loretta, Y. Li (2007): Mode of retention for lead and the role of carbonate in some bentonites, Proc. of the Annual Meeting 2007 of the Japanese Society of Irrigation, Drainage and Rural Engineering, Matsue, Japan, pp.578-579(in Japanese).. |
| 21. |
Higashi, T., Ohtsubo, M. and Kanayama, M., H.(2007): A consideration on strength characteristic of Ariake clay - density dependency in rate of strength increase and internal friction angle -, Proc. of the 88th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Rural Engineering, Saga, Japan, pp.84-85(in Japanese).. |
| 22. |
Okamoto, M., Yamaoka S., Ohtsubo, M., Higashi, T. and Kanayama, M., H.(2007): Effects of salt concentrations on the permeability of soil-bentonite mixtures, Proc. of the 88th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Rural Engineering, Saga, Japan, pp.126-127(in Japanese).. |
| 23. |
Akiko Nakano, Loretta Li, Masami Ohtsubo, Takahiro Higashi and Motohei Kanayama,2007, Retention mechanisms of lead and the role of carbonate in some Japanese bentonites, 60th Canadian Geotechnical Conference & 8th Joint CGS/IAH-CNC Groundwater Conference.
. |
| 24. |
Motohei Kanayama, Takahiro Higashi, Masami Ohtsubo and Akiko Nakano, 2007, Coefficient of secondary consolidation for Ariake marine clay, 60th Canadian Geotechnical Conference & 8th Joint CGS/IAH-CNC Groundwater Conference.
. |
| 25. |
Ohtsubo, M., Kumaru, M.A., Li, L. and Higashi, T., 2006, Effect of salt solution on the permeability of the mixtures of soil and bentonite, Proc. of 5th International Congress on Environmental Geotechnics, Vol. 1, 601-607.. |
| 26. |
Yamaoka, S., Ohtsubo, M., Higashi, T. and Loretta, Y. Li (2006): Lead migration and adsorption of clay liner material by column test under salt water condition, Proc. of the 41th Japan National Conference on Geotechnical Engineering, Kagoshima, Japan, pp.2353-2354(in Japanese). |
| 27. |
Anil Kumar Mishra, Ohtsubo, M., Loretta, Y. Li and Higashi, T.(2006): Effect of salt concentration on the hydraulic conductivity of basalt soil-bentonite mixes, Proc. of the 41th Japan National Conference on Geotechnical Engineering, Kagoshima, Japan, pp.297-298(in Japanese). |
| 28. |
Nakano, A., Ohtsubo, M., Higashi, T. and Loretta, Y. Li (2006): Comparison of mineral compositions of bentonites classified by activity, Proc. of the 41th Japan National Conference on Geotechnical Engineering, Kagoshima, Japan, pp.293-294(in Japanese). |
| 29. |
Yamaoka, S., Ohtsubo, M., Higashi, T. and Loretta, Y. Li : Sorption of Lead in Compacted Soil through Permeation of Lead Solution with Salt, Proc. of the Annual Meeting 2006 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Utsunomiya, Japan, pp.256-257(in Japanese).. |
| 30. |
Nguen, T. L. H.，Ohtsubo, M.，Loretta, Y. Li and Higashi, T. : Heavy metal concentration in the sediments of the To Lich River and the Kim Nguu River in Hanoi city, Proc. of the Annual Meeting 2006 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Utsunomiya, Japan, pp.244-245.. |
| 31. |
Kanayama, M., Higashi, T., Ohtsubo, M. and Chikushi, J. : Prospect for determination method of coefficient of consolidation, Proc. of the Annual Meeting 2006 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Utsunomiya, Japan, pp.796-797(in Japanese).. |
| 32. |
Higashi, T., Ohtsubo, M., Kanayama, M., Furuta, Y., Taira, H. and Fukui, K. : Direct Shear Strength Characteristics of Ariake clay(Yokoshima sample), Proc. of the Annual Meeting 2006 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Utsunomiya, Japan, pp.832-833(in Japanese).. |
| 33. |
Fukui, K., Higashi, T., Ohtsubo, M., Kanayama, M., Furuta, Y. and Taira, H.: Hvorslev's strength parameters and irreversibility ratios of Ariake clay(Yokoshima sample), Proc. of the Annual Meeting 2006 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Utsunomiya, Japan, pp.834-835(in Japanese).. |
| 34. |
M. Kanayama, T. Higashi, M. Ohtsubo, and J. Chikushi, 2006, Determination of coefficient of consolidation
by using nonlinear least square method, International Symposium of Lowland Technology.
. |
| 35. |
Higashi, T., Ohtsubo, M., Kanayama, M. and Hiyama, H.(2006): Residual settlement of the dikes of Yokoshima-Kantaku, Proc. of the 87th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Miyazaki, Japan, pp.164-167(in Japanese).. |
| 36. |
Kanayama, M., Higashi, T. and Ohtsubo, M.(2006): Long-term Settlement Prediction Based on Measured Data, Proc. of the 87th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Miyazaki, Japan, pp.168-169(in Japanese).. |
| 37. |
Mohammad, S., Ohtsubo, M., Higashi, T. and Kanayama, M.(2006): Specic surface area as index property of the consistency limits of marine clays, Proc. of the 87th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Miyazaki, Japan, pp.172-175.. |
| 38. |
Nguen T. L. H., Ohtsubo, M., Higashi, T. and Kanayama, M.(2006): Proc. of the 87th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Miyazaki, Japan, pp.226-229(in Japanese).. |
| 39. |
Nakano, A., Ohtsubo, M., Loretta, Y. Li, Higashi, T. and Kanayama, M.(2006): Proc. of the 87th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Miyazaki, Japan, pp.232-235(in Japanese).. |
| 40. |
Ohtsubo, M., Yamaoka, S., Li, L. and Higashi, T.(2005): Effect of Salt Concentration on the Lead Sorption Characteristics of Clay Liner Materials, Proc. of the 6th Symposium on Environmental Geotechnics, Sapporo, Japan, pp.225-230(in Japanese).. |
| 41. |
Yamaoka, S., Ohtsubo, M., Higashi, T. and Li, L.(2005): Change of Form of Pb Sorption and Composition of Exchangeable Cation by Salt Addition for Bentonite-mixed Soil, Proc. of the 40th Japan National Conference on Geotechnical Engineering, Hakodate, Japan, pp.2565-2566(in Japanese). |
| 42. |
Anil, M. K., Ohtsubo, M., Li, L. and Higashi, T.(2005): Effect of The Salt Concentration on The Permeability of Basalt soil-Bentonite Mixes, Proc. of the 40th Japan National Conference on Geotechnical Engineering, Hakodate, Japan.. |
| 43. |
Yamaoka, S., Ohtsubo, M., Higashi, T., Li, L.(2005): Effects of salt on the lead sorption of soil and bentonite admixtures, International Clay Conference, Tokyo, Japan.. |
| 44. |
Nakano, A, Ohtsubo, M., Higashi, T. and Li, L..(2005)：Affecting factors on the lead (Pb) sorption capability of various bentonties, International Clay Conference, Tokyo, Japan.. |
| 45. |
Higashi, T., Ohtsubo, M., Mak, T. K., Furuta, Y. and Mitani, S.: Comparison between the Liquid Limits obtained by Fall Cone and JIS Methods, Proc. of the Annual Meeting 2005 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Gifu, Japan, pp.882-883(in Japanese).. |
| 46. |
Kanayama, M., Chikushi, J., Higashi, T. and Ohtsubo, M.(2005)：Long-term Settlement Prediction Based on Measured Data, Proc. of the Annual Meeting 2005 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Gifu, Japan, pp.894-895(in Japanese).. |
| 47. |
Higashi, T., Ohtsubo, M. and Kanayama, M.(2005): Hvorslev's Strength Parameters and Irreversibility Ratios of Ariake Clay - The Results of Consolidation-swelling Constat Volume Direct Shear Test for Chikugo-gawa Sample -, Proc. of the 86th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Nagasaki, Japan, pp.312-313(in Japanese).. |
| 48. |
Kanayama, M., Higashi, T., Ohtsubo, m. and Chikushi, J.(2005): A Determination Method of the Coefficient of Consolidation of Soil by Nonlinear Least Square Method, Proc. of the 86th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Nagasaki, Japan, pp.314-315(in Japanese).. |
| 49. |
Ohtsubo, M., Li, L.Y., Yamaoka, S. and Higashi, T.(2004): Leachability of metals from municipal solid waste fly-ash and bottom-ashes at different pH, Geoenvironmental Engineering- Integrated management of groundwater and contaminated land (ed. Yong, R.N. and Thomas, H.R.) Thomas Telford, 283-
296.. |
| 50. |
Yamaoka, S., Ohtsubo, M., Higashi, T. and Li, L.(2004): Lead Adsorption characteristic of compacted bentonite mixed soil in consideration of the adsorption form, Proc. of the 39th Japan National Conference on Geotechnical Engineering, pp.2311-2312(in Japanese). |
| 51. |
Morishita, T. , Ohtsubo, M., Higashi, T. and Li, L.(2004): Effects of Salinity on the Hydraulic Conductivity and Lead Sorption of Marine Clay, Proc. of the 39th Japan National Conference on Geotechnical Engineering, pp.2313-2314(in Japanese). |
| 52. |
Anil, K. M., Ohtsubo, M., Higashi, T. and Li, L.(2004)：Effect of salt solution on the Permeability on compacted sand-bentonite mixture, Proc. of the Annual Meeting 2004 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Sapporo, Japan, pp.304-305.. |
| 53. |
Ohtsubo, M., Iwanaga, T., Higashi, T. and Kanayama, M.(2004): Effects of Clay Mineral Composition on the Consolidation Characteristics of Marine Clay, Proc. of the Annual Meeting 2004 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Sapporo, Japan, pp.398-399(in Japanese).. |
| 54. |
Higashi, T., Ohtsubo, M., Mak, T. K., Furuta, Y. and Mitani, S.(2004): Direct Shear Strength Characteristics of Ariake Clay (Chikugo-gawa Sample), Proc. of the Annual Meeting 2004 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Sapporo, Japan, pp.400-401(in Japanese).. |
| 55. |
Hagio, T., Ohtsubo, M., Higashi, T. and Kanayama, M.(2004): Clay Mineralogy and Consolidation Characteristics of Haiphong Clay in Vietnam, Proc. of the Annual Meeting 2004 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Sapporo, Japan, pp.402-403(in Japanese).. |
| 56. |
Yamaoka, S., Ohtsubo, M. and Higashi, T.(2004): Influence of the Salinity on Lead Adsorption of Clay Liner Material, Proc. of the Annual Meeting 2004 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Sapporo, Japan, pp.316-317(in Japanese).. |
| 57. |
Morishita, T., Ohtsubo, M. and Higashi, T.(2004): Effects of Salinity on the Hydraulic Conductivity and Lead Sorption of Marine Clay, Proc. of the Annual Meeting 2004 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Sapporo, Japan, pp.318-319(in Japanese).. |
| 58. |
Higashi, T., Ohtsubo, m., Furuta, Y., Mak, T. K. and Mitani, S.(2004): Direct Shear Strength Characteristics of Ariake Clay (Yokoshima Sample), Proc. of the 85th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Kumamoto, Japan, pp.50-51(in Japanese).. |
| 59. |
H. Hiyama, R. S. Sharma, T.Higashi, M.Kanayama and M. Takayama(2003)：Shear strength behavior of unsaturated Onjaku soil, Proc. of the 2nd Asian Conference on Unsaturated Soils, Oosaka, Japan, pp.243-246.. |
| 60. |
Higashi Takahiro, Ohtsubo Masami, Kanayama Motohei and Mak Tsz Kin(2003)：Relationship between Penetration Depth of Fall Cone and Vane Shear Strengthes for Ariake Clays, Proc. of the 84th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Beppu, Japan, pp.29-30(in Japanese).. |
| 61. |
Higashi Takahiro, Ohtsubo Masami, Kanayama Motohei and Mak Tsz Kin(2003)：Comparisons between Various Undrained Shear Strengthes of Ariake Clays, Proc. of the 84th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Beppu, Japan, pp.27-28(in Japanese).. |
| 62. |
Kanayama Motohei, Higashi Takahiro, Ohtsubo Masami, Akaboshi Kouichi and Mitani Sumie(2003)：Coefficient of Consolidation for Ariake Clays, Proc. of the 84th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Beppu, Japan, pp.23-24(in Japanese).. |
| 63. |
Higashi Takahiro, Ohtsubo Masami, Hiyama Hiroki and Akaboshi Kouichi(2003)：Compression Index of Ariake Clays, Proc. of the Annual Meeting 2003 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Naha, Japan, pp.516-517(in Japanese).. |
| 64. |
Mitani Sumie, Higashi Takahiro, Ohtsubo Masami, Hiyama Hiroki and Kanayama Motohei(2003)：Consolidation of Ariake Clays Using Constant Rate of Strain Loading, Proc. of the Annual Meeting 2003 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Naha, Japan, pp.514-515(in Japanese).. |
| 65. |
Mak Tsz Kin, Higashi Takahiro, Ohtsubo Masami and Hiyama Hiroki(2003)：Applications of Fall Cone Test to Ariake Clays, Proc. of the Annual Meeting 2003 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Naha, Japan, pp.492-493(in Japanese).. |
| 66. |
Furuta Yoshiyuki, Higashi Takahiro, Ohtsubo Masami, Hiyama Hiroki and Okamoto Daiki(2003)：Direct Shear Strength Characteristics of Ariake Clay in the Eastern Coastland of the Ariake Sea, Proc. of the Annual Meeting 2003 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Naha, Japan, pp.490-491(in Japanese).. |
| 67. |
Yamaoka Shinya, Ohtsubo Masami and Higashi Takahiro (2002)： Adsorption Capacity of Heavy Metals for Clay Material Using for Clay Liner, Proc. of the 83th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Fukuoka, Japan, pp.241-244(in Japanese).. |
| 68. |
Kanayama Motohei, Higashi Takahiro and Ohtsubo Masami(2002)：Consolidation of Clays Using Constant Rate of Strain Loading, Proc. of the 83th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Fukuoka, Japan, pp.217-218(in Japanese).. |
| 69. |
Higashi Takahiro, Ohtsubo Masami, Hiyama Hiroki, Kanayama Motohei and Akaboshi Kouichi(2002)：A Consideration on Compression Index of Ariake Clays, Proc. of the 83th technical meeting of Kyushu Branch of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Fukuoka, Japan, pp.215-216(in Japanese).. |
| 70. |
Iwanaga Toshihiro, Ohtsubo Masami, Higashi Takahiro and Hiyama Hiroki(2002)：Clay mineral Composition and physical Properties of Ariake Clay, Proc. of the Annual Meeting 2002 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Tsu, Japan, pp.242-243(in Japanese).. |
| 71. |
Higashi Takahiro, Ohtsubo Masami, Hiyama Hiroki, Okamoto Daiki and Knayama Motohei(2002)：Applications of Fall Cone Test to Ariake Clay(Isahaya Bay Clay), Proc. of the Annual Meeting 2002 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Tsu, Japan, pp.240-241(in Japanese).. |
| 72. |
Inokuchi Motoyasu, Higashi Takahiro, Ohtsubo Masami, Knayama Motohei and Akaboshi Kouichi(2002)：Coefficient of Earth Pressure at Rest for Ariake Clay, Proc. of the Annual Meeting 2002 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Tsu, Japan, pp.236-237(in Japanese).. |
| 73. |
Knayama Motohei, Ohhara Hironobu, Higashi Takahiro and Ohtsubo Masami(2002)：Comparison of One-dimensional Consolidation Properties of Ariake Clay and Hachirogata Clay, Proc. of the Annual Meeting 2002 of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, Tsu, Japan, pp.234-235(in Japanese).. |
