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<2022年>

Wu, Y., Ishikawa, T., Maruyama, K., Ueno, C., Yasuoka, T., Okuda, S. : Modeling Wicking Fabric inhibition effect on frost heave, Applied Sciences, 12: 4357, 2022.4.

Nguyen, B.T., Ishikawa, T., Zhu Y., Subramanian, S. S., Nguyen, T.T. : New simplified transient method for determining the coefficient of permeability of unsaturated soil, Engineering Geology, 300: 106564, 2022.2.

<2021>

Lin, T., Ishikawa, T., Yang, J., Tokoro, T. : Evaluation of climate effect on resilient modulus of granular subgrade material, Cold Regions Science and Technology, 194: 103452, 2021.12.

Ishikawa, T., Dareeju, B., Gallage, C., Lin, T. : Resilient deformation characteristics of unsaturated subgrade materials of rail tracks under cyclic moving wheel loads, Geotechnical Engineering Journal of the SEAGS & AGSSEA, 52(4): 23-32, 2021.12.

Ohtsuka, S., Isobe, K. and Fukumoto, Y. : Wide-area Land Subsidence of Kashiwazaki Plain due to the 2007 Niigata-ken Chuetsu-Oki Earthquake, SEAGS-AGSSEA Journal, 52(4): 1-7, 2021.12.

Yang, J., Ishikawa, T., Tokoro, T., Nakamura, T., Kijiya, I., Okayasu, T. : Effect evaluation of drainage condition and water content on cyclic plastic deformation of aged ballast and its estimation models, Transportation Geotechnics, 30: 100606, 2021.9.

Ishikawa, T., Yoshimi, M., Isobe, K. and Yokohama, S. : Reconnaissance report on geotechnical damage caused by 2018 Hokkaido Eastern Iburi earthquake with JMA seismic intensity 7, Soils and Foundations, 61(4): 1151-1171, 2021.8.

Zhu Y., Ishikawa, T., Yamada, T., Subramanian, S. S. : Probability Assessment of Slope Instability in Seasonally Cold Regions under Climate Change, Journal of Infrastructure Preservation and Resilience, 2: 20, 2021.7.

Lin, T., Ishikawa, T., Maruyama, K., Tokoro, T. : Pavement design method in Japan with consideration of climate effect and principal stress axis rotation, Transportation Geotechnics, 28: 100552, 2021.3.

Zhu Y., Ishikawa, T., Subramanian, S. S., Luo, B. : Early warning system for rainfall and snowmelt induced slope failure in seasonally cold regions, Soils and Foundations, 61(1): 198-217, 2021.1.

Yang, J., Ishikawa, T., Lin, T., Tokoro, T., Nakamura, T., Momoya, Y. : Influence of aging on hydro-mechanical behavior of unsaturated ballast, Transportation Geotechnics, 27: 100480, 2021.1.

<2020>

Quang, N. P., Ohtsuka, S., Isobe, K. and Fukumoto, Y. : Limit load space of rigid footing under eccentrically inclined load, Soils and Foundations, 60(4): 811-824, 2020.8.

Zhu Y., Ishikawa, T., Subramanian, S. S., Luo, B. : Simultaneous analysis of slope instabilities on a small catchment-scale using coupled surface and subsurface flows, Engineering Geology, 275: 2020.7.

Nguyen, B.T., Ishikawa, T., Murakami, T. : Effects evaluation of grass age on hydraulic properties of coarse-grained soil, Transportation Geotechnics, 25: 100401, 2020.7.

Subramanian, S. S., Fan, X., Yunus, A.P., van Asch, T., Scaringi, G., Xu, Q., Dai, L., Ishikawa, T., Huang, R. : A sequentially coupled catchment-scale numerical model for snowmelt-induced soil slope instabilities, Journal of Geophysical Research: Earth Surface, 125(5): 1-23, 2020.4.

<2019>

Quang, N. P., Ohtsuka, S., Isobe, K., Fukumoto, Y. and Hoshina, T.: Ultimate bearing capacity of rigid footing under eccentric vertical load, Soils and Foundations, 59(6): 1980-1991, 2019.12.

Ishikawa, T., Lin, T., Kawabata, S., Kameyama, S., Tokoro, T. : Effect evaluation of freeze-thaw on resilient modulus of unsaturated granular base course material in pavement, Transportation Geotechnics, 21: 100284, 2019.12.

Ishikawa, T., Lin, T., Yang, J.Q., Tokoro, T., Tutumluer, E. : Application of the UIUC model for predicting ballast settlement to unsaturated ballasts under moving wheel loads, Transportation Geotechnics, 18: 149-162, 2019.3.

Lin, T., Ishikawa, T., Luo, B. : Applicability of modified UIUC model for unbound aggregate material with different water content, Transportation Research Record: Journal of the Transportation Research Board, 2019.3.

Quang, N. P., Ohtsuka, S., Isobe, K. and Fukumoto, Y.: Group effect on ultimate lateral resistance of piles against uniform ground movement, Soils and Foundations, 59(1): 27-40, 2019.2.

<2018>

Subramanian, S. S., Ishikawa, T., Tokoro, T. : An early warning criteria for the prediction of snowmelt induced soil slope failures in seasonal cold regions, Soils and Foundations, 58(3): 582-601, 2018.6.

<2017>

Dareeju, B., Gallage, C., Ishikawa, T., Dhanasekar, M. : Effects of principal stress axis rotation on cyclic deformation characteristics of rail track subgrade materials, Soils and Foundations, 57(3): 423-438, 2017.6.

Luo, B., Ishikawa, T., Tokoro, T., Lai, H. : Coupled thermo-hydro-mechanical analysis on freeze-thaw behavior of pavement structure over box culvert, Transportation Research Record: Journal of the Transportation Research Board, 2656: 12-22, 2017.6.

Subramanian, S. S., Ishikawa, T., Tokoro, T. : Stability assessment approach for soil slopes in seasonal cold regions, Engineering Geology, 221: 154-169, 2017.4.

<2016>

Tokoro, T., Ishikawa, T., Shirai, S., Nakamura, T. : Estimation methods of soil thermal conductivity with electric characteristics, Soils and Foundations, 56(5): 943-952, 2016.10.

Ishikawa, T. Tokoro, T., Miura, S. : Influence of freeze-thaw action on hydraulic behavior of unsaturated volcanic coarse-grained soils, Soils and Foundations, 56(5): 790-804, 2016.10.

Du, N., L., Ohtsuka, S., Hoshina, T. and Isobe, K. : Discussion on size effect of footing in ultimate bearing capacity of sandy soil using rigid plastic finite element method, Soils and Foundations, 56(1): 93-103, 2016.2.

<2015>

Ishikawa, T. and Miura, S. : Influence of moving wheel loads on mechanical behavior of submerged granular roadbed, Soils and Foundations, 55(2): 242-257, 2015.4.

Matsumura, S., Miura, S., Yokohama, S. and Kawamura, S. : Cyclic deformation-strength evaluation of compacted volcanic soil subjected to freeze−thaw sequence, Soils and Foundations, 55(1): 86-98, 2015.1.

<2014>

Ishikawa, T., Miura, S. and Sekine, E. : Simple plastic deformation analysis of ballasted track under repeated moving-wheel loads by cumulative damage model, Transportation Geotechnics, 1(4): 157-170, 2014.12.

Yokohama, S., Miura, S. and Matsumura, S. : Change in hydromechanical characteristics of embankment material due to compaction state condition, Soils and Foundations, 54(4): 731-747, 2014.10.

Isobe, K., Ohtsuka, S. and Nunokawa, H.: Field investigation and model tests on differential settlement of houses due to liquefaction in the Niigata-ken Chuetsu-Oki Earthquake of 2007, Soils and Foundations, 54(4): 675-686, 2014.8.

Zhang, Y., Ishikawa, T., Tokoro, T. and Nishimura, T. : Influences of degree of saturation and strain rate on deformation-strength characteristics of unsaturated granular subbase course material, Transportation Geotechnics, Vol.1, pp.74-89,2014.6.

Isobe, K., Kimura, M. and Ohtsuka, S.: Design approach to a method for reinforcing existing caisson foundations using steel pipe sheet piles, Soils and Foundations, 54(2): 141-154, 2014.4.

Ishikawa, T., Miura, S. and Sekine, E. : Dynamic Behavior of Railway Ballasted Track Structures in Shaking Table Tests and Seismic Resistant Performance Evaluation in Japan, Geotechnical Engineering Journal of the SEAGS & AGSSEA, 45(1): 56-66, 2014.3.

Inam, A., Ishikawa, T. and Miura, S. : Dependency of cyclic plastic deformation characteristics of unsaturated recycled base course material on principal stress axis rotation, Geotechnical Engineering Journal of the SEAGS & AGSSEA, 45(1): 74-84, 2014.3.

Ishikawa, T., Zhang Y., Tokoro, T. and Miura, S. : Medium-size triaxial apparatus for unsaturated granular subbase course materials, Soils and Foundations, 54(1): 67-80, 2014.2.

<2013>

Kawamura, S., Miura, S., Yokohama, S., Kudo, A., Kaiya, N. and Sato, Y.: Field monitoring of embankment constructed by Volcanic soil and its evaluation, Stability and Performance of Slopes and Embankments III, Geocongress2013, ASCE-Geotechnical Special Publication, (231), pp.373-382, 2013.?.

<2012>

Inam, A., Ishikawa, T. and Miura, S.: Effect of principal stress axis rotation on cyclic plastic deformation characteristics of unsaturated base course material, Soils and Foundations, 52(3): 465-480, 2012.6.

<2011>

Kawamura, S., Miura, S. and Yokohama, S.: Rainfall-induced failure of volcanic slope with crushable particles subjected to freeze-thaw action, Advances in Geotechnical Engineering, GeoFrontiers2011, Geotechnical Special Publications, ASCE, No.211, pp.3597-3608, 2011.?.

Ishikawa, T. and Miura, S.: Influence of freeze-thaw action on deformation-strength characteristics and particle crushability of volcanic coarse-grained soils, Soils and Foundations, 51(5): 785-799, 2011.10.

Ishikawa, T., Sekine, E. and Miura, S.: Cyclic deformation of granular material subjected to moving wheel loads, Canadian Geotechnical Journal, 48(5): 691-703, 2011.5.

<2010>

Kawamura, S., Miura, S. and Yokohama, S.: Mechanical behavior of anisotropic sand ground beneath structures subjected to cyclic loading such as wave loading,Soils and Foundations,50(5): 645-657,2010.10.

Ishikawa, T., Tokoro, T., Ito, K. and Miura, S.: Testing methods for hydro-mechanical characteristics of unsaturated soils subjected to one-dimensional freeze-thaw action, Soils and Foundations, 50(3): 431-440, 2010.6.

Prceedings

<2021>

Ishikawa, T. : Lessons from recent geo-disasters in Hokkaido under heavy rainfall, Understanding and Reducing Landslide Disaster Risk Vol. 6 Specific Topics in Landslide Science and Applications, Proceedings of the 5th World Landslide Forum, Kyoto, Japan, pp.131-139, 2021.11.

Mochizuki, K., Tamboura, H., H., Isobe, K., Takemura, J. and Toda, K.: Numerical simulation for centrifuge model tests on cantilever type steel tubular pile retaining wall by rigid plastic FEM, Proceedings of the Second International Conference on Press-in Engineering 2021, Kochi, Japan, pp.245-253, 2021.6.

Iqbal, T., Ohtsuka, S., Fukumoto, Y. and Isobe, K.: Size effect of footing in ultimate bearing capacity of intermediate soil, Proceedings of the Second International Conference on Press-in Engineering 2021, Kochi, Japan, pp.37-45, 2021.6.

Lin, T., Ishikawa, T., Tokoro, T., Maruyama, K., Ueno, C. : Modification of Japanese pavement fatigue life criteria by considering climate effect in cold regions, Advances in Transportation Geotechnics IV (4th International Conference on Transportation Geotechnics), Proceedings of the 4th International Conference on Transportation Geotechnics 1, Chicago, USA, pp.29-39, 2021.5.

Yasuoka, T., Ishikawa, T., Luo, B., Wu, Y., Maruyama, K., Ueno, C. : Coupled analysis on frost-heaving depression effect of geosynthetics drainage material for road pavement, Advances in Transportation Geotechnics IV (4th International Conference on Transportation Geotechnics), Proceedings of the 4th International Conference on Transportation Geotechnics 2, Chicago, USA, pp.509-520, 2021.5.

Zhu, Y., Ishikawa, T., Subramanian, S. S. : Integrated modeling of fully coupled two-phase surface and subsurface flow, Proceedings of the 16th International Conference on Computer Methods and Advances in Geomechanics, Torino, Italy, Vol. 1, pp.680-687, 2021.5.

<2020>

Zhu, Y., Ishikawa, T., Subramanian, S. S. : Simulation of runoff and infiltration using iterative cross-coupled surface and subsurface flows, Japanese Geotechnical Society Special Publication (8th Japan-China Geotechnical Symposium), Vol. 8, No. 3, pp.41-46, 2020.9.

Nishimura, S., Sasahara, K., Ishikawa, T. : Effect of snow cover evolution on p ore water pressure behaviour in embankments and cut slopes: Field observations, Japanese Geotechnical Society Special Publication (8th Japan-China Geotechnical Symposium), Vol. 8, No. 8, pp.288-293, 2020.9.

<2019>

Ishikawa, T., Lin, T.: Applicability of AASHTO MEPDG approach to flexible pavements in cold regions of Japan, Proceedings of the XVI Pan-American Conference on Soil Mechanics and Geotechnical Engineering, Cancun, Mexico, Vol. 2, pp. 2931-2933, 2019.11.

Lin, T., Ishikawa, T., Tutumluer, E., Luo, B., Tokoro, T. : Performance evaluation of modified UIUC model with considering principal stress axis rotation, Proceedings of the 16th PamAmerican Conference on Soil Mechanics and Geotechnical Engineering, Cancun, Mexico, Vol. 2, pp.1543-1551, 2019.11.

Quang, P., N., Ohtsuka, S., Isobe, K. and Fukumoto, Y.:Bearing Capacity of Footing Resting on Sand for Eccentric Vertical Load, Geotechnics for Sustainable Infrastructure Development (Proceedings of the 4th Geotech Hanoi), Hanoi, Vietnam, pp.1135-1142, 2019.11

Mochizuki, K., Isobe, K., Takemura, J. and Ishihama, Y.:Numerical simulation for centrifuge model tests on the stability of self-standing steel pipe pile retaining wall by Rigid Plastic FEM, Geotechnics for Sustainable Infrastructure Development (Proceedings of the 4th Geotech Hanoi), Hanoi, Vietnam, pp.481-488, 2019.11

Ishikawa, T. : Influences of Freeze-thaw on Performance of Pavement Structures in Snowy Cold Region, Proceedings of the 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Taipei, Taiwan, 2019.10.

Lin, T., Ishikawa, T., Aoki, R., Tokoro, T. : Resilient properties of unbound granular materials subjected to freeze-thaw and wheel loads, Proceedings of the 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Taipei, Taiwan, 2019.10.

Yang, J.Q., Ishikawa, T., Matsutani, S., Tokoro, T., Nakamura, T., Momoya, Y. : Influences of water content and fine fraction content on permanent deformation of ballasts, Proceedings of the 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Taipei, Taiwan, 2019.10.

Isobe, K. Hatanaka, Y. and Tomisawa, K.: Centrifuge model tests on long-term consolidation of clay ground after earthquakes and negative impact against seismic behavior of upper liquefiable sand caused by clay ground, Proceedings of the 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Taipei, Taiwan, USB, 2019.10

Nguyen, B.T., Ishikawa, T., Murakami, T. : Numerical analysis of in-situ water content and temperature variations due to effects of grass, Proceedings of the 7th Asia-Pacific Conference on Unsaturated Soils, Nagoya, Japan, pp.660-668, 2019.8.

Lin, T., Ishikawa, T., Tokoro, T. : Testing method for resilient properties of unsaturated unbound granular materials subjected to freeze-thaw action, Proceedings of the 7th Asia-Pacific Conference on Unsaturated Soils, Nagoya, Japan, pp.576-581, 2019.8.

Tokoro, T., Ishikawa, T. : Measurement of unfrozen water in unsaturated soil with pulse NMR, Proceedings of the 7th Asia-Pacific Conference on Unsaturated Soils, Nagoya, Japan, pp.582-586, 2019.8.

Goldsmith, V., Ishikawa, T. : Impact of increase in speed and axle load of trains on track settlement in the context of Indian track structure, Proceedings of Railway Engineering-2019, pp.1-12, Edingburgh, UK, 2019.7.

Ohtsuka, S., Isobe, K. and Fukumoto, Y.: Analysis forwide-area land subsidence of Kashiwazaki Plain due to the 2007 Niigata-ken Chuetsu-Oki earthquake, Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions (Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering), Rome, Italy, pp.4195-4201, 2019.7

Egawa, T., Hatakeyama, O. and Isobe, K.: Study on seismic reinforcement of piles in liquefied volcanic ash ground, Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions (Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering), Rome, Italy, pp.2224-2232, 2019.7

Tokoro, T., Ishikawa, T. : Measurement for permeability of frozen soil by transient pulse method, Proceedings of the 4th International Symposium on Transportation Soil Engineering in Cold Regions, Saint Petersburg, Russia, 1: pp.71-78, 2019.5.

Quang, N. P., Ohtsuka, S., Isobe, K. and Fukumoto, Y.: Effect of Ground Movement Direction on Ultimate Lateral Resistance of Line Alignment Piles in Clay, Transactions on GIGAKU (Special issue of The 7th International GIGAKU Conference in Nagaoka (IGCN)), 6(1): pp.06003/1-8, 2019.5.

<2018>

Hamidou, H. and Isobe, K.: Bearing Capacity of an Incompletely End-Supported Pile Based on Rigid Plastic Finite Element Method (RPFEM), Sustainability Issues for the Deep Foundations (Proceedings of the 2nd GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, Egypt 2018 - The Official International Congress of the Soil-Structure Interaction Group in Egypt (SSIGE)), Cairo, Egypt, pp.85-103, 2018.11

Quang, N. P., Ohtsuka, S., Isobe, K. and Fukumoto, Y.: Ultimate lateral resistance of pile group in clayey soils against various direction of ground movement, Proceedings of the 1st Vietnam Symposium on Advances in Offshore Engineering - Energy and Geotechnics, Hanoi, Vietnam, pp.408-414, 2018.10

Nakagawa, S., Yamauchi, R., Isobe, K. and Tomisawa, K. : Evaluation of Bearing Capacity of a Small-Diameter Spiral Pile Subjected to Combined Load Using Model Tests, Proceedings of the First International Conference on Press-in Engineering, Kochi, Japan, pp.117-124, 2018.9.

Ishikawa, T., Aoyagi, T., Lin, T., Tokoro, T. : Advanced laboratory element tests for geomaterials in terms of transportation geotechnics, Proceedings of the 7th Korea-Japan Geotechnical Engineering Workshop, Incheon, Korea, pp.52-54, 2018.8.

Tokoro, T., Ishikawa, T. : Water, heat and electric current flow in saturated and unsaturated sandy soil, Proceedings of the 7th International Conference on Unsaturated Soils (UNSAT2018), Hong Kong, China, pp.463-468, 2018.8.

Hatanaka, Y. and Isobe, K. : Seismic amplification of clay ground and long-term consolidation after earthquake, Proceedings of the 9th International Conference on Physical Modelling in Geotechnics 2018 (ICPMG2018), London, England, pp.891-896, 2018.7.

Egawa, T., Yamanashi, T. and Isobe, K. : Investigation on the aseismic performance of pile foundations in volcanic ash ground, Proceedings of the 9th International Conference on Physical Modelling in Geotechnics 2018 (ICPMG2018), London, England, pp.879-884, 2018.7.

Luo, B., Ishikawa, T., Tokoro, T. : A finite element analysis of stress change in pavement subjected to freeze-thaw, Proceedings of GeoShanghai 2018 International Conference: Multi-physics Processes in Soil Mechanics and Advances in Geotechnical Testing, Shanghai, China, pp.315-324, 2018.5.

Aoyagi, T., Yang, J., Matsutani, S., Ishikawa, T., Nakamura, T., Momoya, Y. : Development of Freeze-thaw Water Retention Test Apparatus for Coarse Granular Materials, Proceedings of the International Symposium on Geotechnics of Transportation Infrastructure (ISGTI 2018), Delhi, India, pp.577-583, 2018.4.

Ishikawa, T., Subramanian, S. S., Tokoro, T. : Applicability Evaluation of Slope Disaster Risk Assessment Method in Snowy Cold Regions, Proceedings of the International Symposium on Geotechnics of Transportation Infrastructure (ISGTI 2018), Delhi, India, pp.11-23, 2018.4.

Morii, T., Ishikawa, T., Kobayashi, K., Hanada, Y., Muto, K. : Water diversion in shallow land waste repository constructed using capillary barrier of soil, Proceedings of the 7th China-Japan Geotechnical Symposium, Sanya, China, pp.220-226, 2018.3.

<2017>

Isobe, K. and Yamauchi, R. : Numerical simulation on bearing capacity of a small diameter spiral pile in soft ground subjected to combined load, Proceedings of the 15th International Conference of the International Association for Computer Methods and Advances in Geomechanics, Wuhan, China, USB, 2017.10.

Quang, N. P. Ohtsuka, S., Isobe, K. and Fukumoto, Y. : Group effect on ultimate lateral resistance of piles in clayey soils against horizontal ground movement, Proceedings of the 15th International Conference of the International Association for Computer Methods and Advances in Geomechanics, Wuhan, China, USB, 2017.10.

Tutumluer, E., Ishikawa, T. : General Report TC202 Transportation Geotechnics, Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul, South Korea, pp.1325-1332, 2017.9.

Tokoro, T., Ishikawa, T., Subramanian, S. S. : Dynamic behavior under surface layer frozen condition, Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul, South Korea, pp.1597-1600, 2017.9.

Subramanian, S. S., Ishikawa, T., Tokoro, T. : Climatic effects on the stability of unsaturated soil slope in cold region, Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul, South Korea, pp.2203-2206, 2017.9.

Yamauchi, R. and Isobe, K. : Bearing capacity characteristics of a small diameter spiral pile in soft ground subjected to combined load, Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul 2017, South Korea, pp.2889-2892, 2017.9.

Isobe, K., Sawamura, Y., Kimura, M. and Soga, Y. : Evaluation of seismic performance of a bridge column integrated by multiple steel pipes with directly-connected piles based on shaking table tests, Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul 2017, South Korea, pp.2785-2788, 2017.9.

Luo, B., Ishikawa, T., Lai, H., Tokoro, T. : Frost heave analysis of ballasted track above box culvert and its influence on train vibration, Proceedings of the 3rd International Symposium on Transportation Soil Engineering in Cold Regions, Guide, China, Sciences in Cold and Arid Regions, 9(3): 229-235. 2017.7.

Ishikawa, T., Matsutani, S., Tokoro, T., Nakamura, T., Momoya, Y. : Influence of parallel grading on hydro-mechanical characteristics of unsaturated fouled ballast, Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, Athens, Greece, pp.1817-1825, 2017.6.

Mori, A., Subramanian, S. S., Ishikawa, T., Komatsu, M. : A case study of a cut slope failure influenced by snowmelt and rainfall, Proceedings of Transportation Geotechnics and Geoecology, TGG 2017, Saint Petersburg, Russia, Vol. 189, pp.533-538, 2017.5.

Subramanian, S. S., Ishikawa, T., Tokoro, T., Kusunoki, F. : Numerical analysis of seismic behaviour of soil under frozen surface conditions, Japanese Geotechnical Society Special Publication (International Mini Symposium CHUBU (IMS-CHUBU)), Nagoya, Vol. 5, No. 2, pp.135-140, 2017.2.

<2016>

Nguyen, B. T., Ishikawa, T., Mori, A. : Influence of grass cover on the infiltration of unsaturated volcanic soil, Proceedings of the 3rd International Conference on Geotechnics for Sustainable Infrastructure Development (GEOTEC HANOI 2016), Hanoi, Vietnam, pp.1159-1168, 2016.11.

Tokoro, T., Ishikawa, T., Akagawa, S. : Temperature dependency of permeability coefficient of frozen soil, Proceedings of GEOVancouver 2016, Vancouver, [1/1(USB)3896], 2016.10.

Gallage, C., Dareeju, B., Dhanasekar, M., Ishikawa, T. : Effects of principal stress axis rotation on unsaturated rail track foundation deterioration, Advances in Transportation Geotechnics III (3rd International Conference on Transportation Geotechnics), Procedia Engineering 143, Guimaraes, pp.252-259, 2016.9.

Kawabata, S., Ishikawa, T., Kameyama, S. : Effects of freeze-thaw history on bearing capacity of granular base course materials, Advances in Transportation Geotechnics III (3rd International Conference on Transportation Geotechnics), Procedia Engineering 143, Guimaraes, pp.828-835, 2016.9.

Ishikawa, T., Fuku, S., Nakamura, T., Momoya, Y., Tokoro, T. : Influence of water content on shear behavior of unsaturated fouled ballast, Advances in Transportation Geotechnics III (3rd International Conference on Transportation Geotechnics), Procedia Engineering 143, Guimaraes, pp.268-275, 2016.9.

Ishikawa, T., Kawabata, S. : Influence of Freeze-thaw on Mechanical Behavior of Granular Base and Fatigue Life of Pavement Structures in Japan, ASCE Geotechnical Special Publication (GSP) 262, ASCE: pp.77-85, 2016.7.

Ishikawa, T., Subramanian, S. S., Tokoro, T. : Three dimensional stability analyses of unsaturated soil slopes subjected to severe climatic effects in cold region, Proceedings of the 1st International Conference on Natural Hazards & Infrastructure, Chania, Greece, [1/1(USB)138], 2016.6.

Seto, S., Ishikawa, T., Dareeju, B., Gallage, C., and Luo, B. : Effects of principal stress axis rotation on cyclic plastic deformation of unsaturated railway roadbed, Proceedings of the 3rd International Conference on Railway Technology: Research, Development and Maintenance, Cagliari, Sardinia, Italy, [1/1(USB)19], 2016.4.

Dareeju, B., Gallage, C., Dhanasekar, M. and Ishikawa, T. : Cyclic plastic deformation characteristics of subgrade under moving train wheel load, Japanese Geotechnical Society Special Publication (15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering), Vol. 2 (2015), No. 46, pp.1619-1622, 2016.1.

Ohtsuka, S., Takahara, T., Hosaka, Y. and Isobe, K. : In-situ loading test of wooden pile at Shinano River Ohkouzu old movable weir and discussion on foundation design, Japanese Geotechnical Society Special Publication (15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering), Vol. 2 (2015), No. 41, pp.1456-1459, 2016.1.

Isobe, K. and Ohtsuka, S. : Research on cavity formation below Ohkozu old movable weir in the Shinano River, Japanese Geotechnical Society Special Publication (15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering), Vol. 2 (2015), No. 41, pp.1452-1455, 2016.1.

Ishikawa, T., Kijiya, I., Tokoro, T. and Sato, M. : Application of coupled thermo-hydro-mechanical analysis to frost-heave behavior of earth structures, Japanese Geotechnical Society Special Publication (15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering), Vol. 2 (2015), No. 13, pp.531-536, 2016.1.

<2015>

Tokoro, T., Ishikawa, T. and Miura, S. : Effect of freezing direction on the liquefaction strength of crushable volcanic soil, Proceedings of the 6th International Conference on Earthquake Geotechnical Engineering, Christchurch, [1/1(USB)449], 2015.11.

Isobe, K. and Ohtsuka, S. : Shaking Table Test on Cavity Formation below Ohkozu Old Movable Weir in the Shinano River, Proceedings of the 6th International Conference on Earthquake Geotechnical Engineering, Christchurch, [1/1(USB)147], 2015.11.

Ishikawa, T., Tokoro, T., Akagawa, S. : Frost heave behavior of unsaturated soils under low overburden pressure and its estimation, Proceedings of GEOQuebec 2015, Quebec, [1/1(USB)792], 2015.9.

Ohtsuka, S., Isobe, K., Koishi, Y. and Endou, S.: Study on volcanic sediment embankment collapse in the 2011 Earthquake off the Pacific Coast of Tohoku, Volcanic Rocks and Soils, pp.409-417, 2015.9.

Yokohama, S.: Effects of compaction conditions on undrained strength and arrangements of soil particles for Shikotsu volcanic soil, Volcanic Rocks and Soils, pp.119-124, 2015.9.

Zheng, X., Ishikawa, T. and Tokoro, T. : Influence of fine particles run off on shear behavior of volcanic coarse-grained soil, Japanese Geotechnical Society Special Publication (6th Japan-China Geotechnical Symposium), Vol. 1 (2015), No. 7, pp.11-16, 2015.9.

Subramanian, S. S., Ishikawa, T., Yokohama, S. and Tokoro, T. : Numerical simulation of volcanic soil slope failure under coupled freeze-thaw and rainfall infiltration effects, Japanese Geotechnical Society Special Publication (6th Japan-China Geotechnical Symposium), Vol. 1 (2015), No. 7, pp.5-10, 2015.9.

Isobe, K., Sugiyama, H., Shinohara, M., Kobayashi, H., Sawamura, Y., Mitsuyoshi, Y. and Kimura, M. : Shaking table test and numerical simulation on seismic performance of a bridge column integrated by multiple steel pipes with directly-connected piles, Japanese Geotechnical Society Special Publication (6th Japan-China Geotechnical Symposium), Vol. 1 (2015), No. 6, pp.35-40, 2015.9.

Ishikawa, T., Tokoro, T., and Miura, S. : Geohazard at volcanic soil slope in cold regions and its influencing factors, Japanese Geotechnical Society Special Publication (6th Japan-China Geotechnical Symposium), Vol. 1 (2015), No. 1, pp.1-20, 2015.9.

Dareeju, B., Gallage, C., Dhanasekar, M. and Ishikawa, T. : Effects of particle size distributions of rail track layers on plastic deformation by moving wheel loads, Proceedings of International Conference on Geotechnical Engineering (ICGE Colombo2015), Colombo, pp.597-600, 2015.8.

<2014>

Bandara, S., Ohtsuka, S., Iwabe, T., Miyaki, Y. and Isobe, K. : Analysis of geological and geomorphological characteristics of landslides triggered by 2004 Chuetsu earthquake in Japan, Proceedings of INTERPRAEVENT International Symposium 2014, Kyoto, Vol.1, No.1, pp.1-4, 2014.11.

Ishikawa, T., Kijiya, I., Tokoro, T., and Sato, M. : Numerical experiments on freeze-thaw of soils with coupled thermo-hydro-mechanical FE analysis, Proceedings of the 14th International Conference of the International Association for Computer Methods and Advances in Geomechanics, Kyoto, pp.415-420, 2014.9.

Isobe, K., Ohtsuka, S. and Hoshina, T. : Development and its validation of Rigid Plastic Moving Particle Simulation method, Proceedings of the 14th International Conference of the International Association for Computer Methods and Advances in Geomechanics, Kyoto, Japan, pp.165-168, 2014.9.

Ishikawa, T., Miura, S. and Tokoro, T. : Particle breakage of volcanic coarse-grained soils due to wet-dry cycles and freeze-thaw actions, Proceedings of International Symposium on Geomechanics from Micro to Macro (IS-Cambridge 2014), Cambridge, pp.1415-1420, 2014.9.

Isobe, K., Ohtsuka, S. and Hoshina, T. : Development of moving particle simulation method using a rigid plastic constitutive model, Proceedings of International Symposium on Geomechanics from Micro to Macro (IS-Cambridge 2014), Cambridge, UK, pp.995-998, 2014.9.

Ishikawa, T., Tokoro, T., Nakamura, D. and Yamashita, S. : Evaluation on air-permeability of unsaturated soils subjected to freeze-thaw action, Proceedings of the 6th International Conference on Unsaturated Soils (UNSAT2014), Sydney, pp.1189-1195, 2014.7.

Tokoro, T., Ishikawa, T., Shirai, S. and Nakamura, T. : Effect of water content on thermal conductivity of soils, Proceedings of the 6th International Conference on Unsaturated Soils (UNSAT2014), Sydney, pp.1709-1714, 2014.7.

Ishikawa, T., Zhang, Y., Kawabata, S., Kameyama, S. and Tokoro, T. : Effect Evaluation of Freeze-Thaw on Resilient Modulus of Unsaturated Unbound Granular Base Material, TRB 93rd Annual Meeting Compendium of Papers, Transportation Research Board, Washington, Paper #14-4043, 2014.1.

<2013>

Zhang, Y., Ishikawa, T. and Tokoro, T. : Effect of loading rate on strength characteristics of granular base course material, Proceedings of the 3rd International Conference on Geotechnique, Construction Materials and Environment (GEOMATE 2013), Nagoya, Japan, pp.351-356, 2013.11.

Ishikawa, T., Tokoro, T., Nakamura, D. and Yamashita, S. : Influence of freeze-thaw action on air-permeability of unsaturated soil ground, Proceedings of the 3rd International Conference on Geotechnique, Construction Materials and Environment (GEOMATE 2013), Nagoya, Japan, pp.71-76, 2013.11.

Ishikawa, T., Zhang, Y., Kawabata, S., Kameyama, S., Tokoro, T. and Ono, T. : Effect evaluation of freeze-thaw on deformation-strength properties of granular base course material in pavement, Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, Vol. 1, pp.1287-1290, 2013.9.

Kawaguchi, T. Nakamura, D., Yamashita, S., Yamasaki, S. and Ishikawa, T. : Effects of freeze-thaw history on deformation-strength properties and permeability of fine-grained soil, Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, France, Vol. 1, pp.357-360, 2013.9.

Zhang, Y., Ishikawa, T. and Tokoro, T. : Effect of degree of saturation on shear behavior of unsaturated base course material, Proceedings of the 7th CHINA/JAPAN Workshop on Pavement Technologies, pp.51-60, 2013.8.

<2012>

Yokohama, S., Miura, S. and Matsumura, S.: Mechanical properties and soil fabric of compacted embankment, Proceedings of International conference on ground improvement and ground control (IGCI Wollongong 2012), Wollongong, Australia, pp.1089-1094,2012.10.

Matsumura, S., Miura, S. and Yokohama, S.: Seismic behavior of embankment constructedby different compaction methods, Proceedings of International conference on ground improvement and ground control (IGCI Wollongong2012), Wollongong, Australia, pp.1047-1053, 2012.10.

Kawamura, S., Miura, S. and Yokohama, S.: Bearing capacity improvement of anisotropic sand ground and its evaluation, Proceedings of International conference on ground improvement and ground control (IGCI Wollongong 2012), Wollongong, Australia, pp.755-761, 2012.10.

Zhang, Y., Ishikawa, T., Tokoro, T. and Shibuya S. : Influence of moisture content, loading speed and degree of compaction on the shear behavior of sandy soil, Proceedings of the 2nd International Symposium on Constitutive Modeling of Geomaterials - Advances and New Applications -, Beijing, China, October 15-16, 2012, pp.501-506, 2012.10.

Hoshina, T., Ohtsuka, S. and Isobe, K.: Development of slice method based residual deformation analysis of slopes against earthquake, Proceedings of the 15th World Conference on Earthquake Engineering USB, Lisbon, Portugal, 2012.9.

Ishikawa, T. and Tokoro, T. : Influence of freeze-thaw action on hydro-mechanical behavior of unsaturated crushable volcanic soils, Proceedings of the International Workshop on Advances in Multiphysical Testing of Soils and Shales, Lausanne, Switzerland, 3-5 September 2012, pp.143-148, 2012.9.

Yokohama, S., Miura, S. and Matsumura, S.: Change in mechanical characteristics of embankment material by compaction control and its evaluation, Proceedings of the 2nd International Conference on Transportation Geotechnics, Sapporo, pp.364-369, 2012.9.

Matsumura, S., Miura, S. and Yokohama, S.: Effects of compaction condition on seismic performance of dike embankment and its evaluation, Proceedings of the 2nd International Conference on Transportation Geotechnics, Sapporo, pp.334-339, 2012.9.

Inam, A., Ishikawa, T. and Miura, S. : Influence of moisture content on cyclic plastic deformation characteristics of recycled crusher-run material under moving wheel loads, Proceedings of the 2nd International Conference on Transportation Geotechnics, Sapporo, pp.534-540, 2012.9.

Ishikawa, T., Zhang, Y., Segawa, H., Miura, S. and Tokoro, T. : Development of medium-size triaxial apparatus for unsaturated granular base course materials, Proceedings of the 2nd International Conference on Transportation Geotechnics, Sapporo, pp.185-191, 2012.9.

Ishikawa, T., Abe, R., Kawabata, S., Kameyama, O. and Ono, T. : Effects of freeze-thawing on mechanical behavior of granular base in cold regions, Proceedings of the 2nd International Conference on Transportation Geotechnics, Sapporo, pp.118-124, 2012.9.

<2011>

Inam, A., Ishikawa, T. and Miura, S. : Effect of moisture content on cyclic deformation characteristics of granular material under moving wheel loads, Proceedings of the 5th Asia-Pacific Conference on Unsaturated Soils, Pattaya, pp.611-616, 2011.11.

Inam, A., Ishikawa, T. and Miura, S. : Dependency of shear behavior of recycled crusher-run material on moisture content evaluation by multi-ring shear testing, Proceedings of the 2nd Japan-Korea Joint Workshop on Unsaturated Soils and Ground, Fukuoka, Japan, pp.189-198, 2011.9.

<2010>

Capriles, C.A., Ishikawa, T. and Miura, S. : Application of 3D-DEM with Seepage Analysis to Numerical Simulation of rainfall-Induced Slope Failure, Proceedings of International Symposium on Geomechanics and Geotechnics From Micro to Macro (IS-Shanghai2010), Shanghai, pp.689-693, 2010.10.

Ishikawa, T., Ito, K. and Miura, S. : Effect of freeze-thaw action on strength characteristics of unsaturated coarse-grained soil, Proceedings of the 5th International Conference on Unsaturated Soils (UNSAT10), Barcelona, pp.549-554, 2010.9.

Kawamura, S., Miura, S. and Ishikawa, T. : Failure Mechanism of Unsaturated Volcanic Slopes due to Rainfall and Freeze-thaw actions, Experimental and Applied Modeling of Unsaturated Soils, ASCE: 153-158, 2010.6.

<2009>

Tokoro, T., Ishikawa, T. and Miura, S. : Development of triaxial apparatus for permeability test of unsaturated soil using pressure membrane method, Proceedings of the 4th Asia-Pacific Conference on Unsaturated Soils, Newcastle, pp.179-184, 2009.11.

Ishikawa, T., Ito, K. and Miura, S. : Influence of freeze-thaw action on soil water characteristics of crushable volcanic coarse-grained soil, Proceedings of the 4th Asia-Pacific Conference on Unsaturated Soils, Newcastle, pp.159-164, 2009.11.

Ishikawa, T., Miura, S. and Tokoro, T. : Effect evaluation of freeze-thaw action on mechanical behavior of unsaturated crushable coarse granular materials, Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering, Alexandria, Egypt, Vol.1, pp.833-836, 2009.10.

Ishikawa, T., Sekine, E. and Miura, S. : Plastic deformation analysis of granular base under cyclic moving loads by cumulative damage model, Proceedings of the 5th CHINA/JAPAN Workshop on Pavement Technologies, Xian, pp.113-119, 2009.9.

Ishikawa, T., Kamei, T., Sekine, E. and Ohnishi, Y. : Effect evaluation of roadbed stiffness on bearing capacity of railroad ballast with discontinuous analysis, Proceedings of the 8th International Conference on the Bearing Capacity of Roads, Railways and Airfields, Champaign, Vol. 2, pp.1207-1218, 2009.6.

Kawamura, S., Miura, S., Ishikawa, T. and Ino, H. : Failure mechanism of volcanic slope due to rainfall and freeze-thaw action, Proceedings of International Symposium on Prediction and Simulation Methods for Geohazard Mitigation (IS-Kyoto), Kyoto, pp.25-31, 2009.5.

Ishikawa, T., Sato, M., Miura, S. Akagawa, S. and Kawamura, S. : Application of coupled thermo-mechanical analysis to slope behavior during freezing and thawing in cold regions, Proceedings of International Symposium on Prediction and Simulation Methods for Geohazard Mitigation (IS-Kyoto), Kyoto, pp.409-415, 2009.5.

<2008>

Ishikawa, T., Sekine, E. and Ohnishi, Y. : Application of DDA to mechanical behavior of granular base-subgrade system, Proceedings of International Mini-Symposium for Numerical Discontinuous Analysis, Kona, pp.41-52, 2008.11.

Ishikawa, T. and Miura, S. : Numerical modeling for mechanical behavior of granular materials subjected to freeze-thaw action with DEM, Proceedings of the 12th International Conference on Computer Methods and Advances in Geomechanics, Goa, India, pp.1219-1226, 2008.10.

Ishikawa, T., Miura, S., Ito, K. and Ozaki, Y. : Influence of freeze-thaw action on mechanical behavior of saturated crushable volcanic soil, Proceedings of the 4th International Symposium on deformation characteristics of geomaterials (IS-Atalanta2008), Atalanta, Vol. 2, pp.557-564, 2008.9.

Ishikawa, T., Hosoda, M., Miura, S. and Sekine, E. : Influence of water content on mechanical behavior of gravel under moving wheel loads, Proceedings of the 1st International Conference on Transportation Geotechnics, Nottingham, pp.185-191, 2008.8.

<2007>

Ishikawa, T. and Sekine, E. : Effect evaluation of moving load on cyclic deformation of crushed stone, Proceedings of the 13th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Kolkata, Part 1, pp.435-438, 2007.12.

Ishikawa, T., Kawamura, S., Miura, S. and Ohnishi, Y. : Fundamental study for slope failure of volcanic soil ground by DDA, Proceedings of the 8th International Conference on the Analysis of Discontinuous Deformation (ICADD-8), Beijing, pp.61-66, 2007.8.

Ishikawa, T., Sekine, E. and Miura, S. : Effect of moving wheel load on cyclic deformation of granular material, Proceedings of the 4th JAPAN/CHINA Workshop on Pavement Technologies, Sapporo, pp.41-50, 2007.7.

Ishikawa, T., Ozaki, Y. and Miura, S. : Influence of degree of saturation on strength characteristics of crushable volcanic coarse-grained soils, Proceedings of the 3rd Asian Conference on Unsaturated Soils, Nanjing, pp.223-229, 2007.4.

<2006>

Ishikawa, T., Kobayashi, K., Sekine, E. and Ohnishi, Y. : Effect Evaluation of particle shape on mechanical behavior of railroad ballast with discontinuous analysis, Proceedings of International Symposium on Geomechanics and Geotechnics of Particulate Media (IS-Yamaguchi06), Yamaguchi, pp.389-396, 2006.9.

Ishikawa, T., Miura, S. Yokohama, S. and Mijares, R.G. : Strength characteristics of crushable volcanic soils at various degrees of saturation, Proceedings of International Symposium on Geomechanics and Geotechnics of Particulate Media (IS-Yamaguchi06), Yamaguchi, pp.121-126, 2006.9.

Dashdorj, S., Miura, S., Yokohama, S. and Matsumura, K.: Two and three-dimensional modeling of abutment-backfill system on soft ground, Proceedings of 6th European Conference on Numerical Methods in Geotechical Engineering, Graz, Austria, 2006.9.

<2005>

Ishikawa, T., Miura, S. and Ohnishi, Y. : Influence of input parameters on energy loss in free fall tests with DDA, Proceedings of the 7th International Conference on the Analysis of Discontinuous Deformation (ICADD-7), Honolulu, pp.147-158, 2005.12.

Ishikawa, T., Miura, S. and Sekine, E. : Development and performance evaluation of multi-ring shear apparatus, Proceedings of Geotechnical Aspects and Processed Material in Design and Construction of Pavement and Rail Track, Osaka, pp.53-64, 2005.9.

Yokohama, S., Miura, S., Kawamura, S. and Dashdorj, S.: Analysis technique of offshore structure-ground system with considering change of shear modulus of sand measured by laboratory testing, Proceedings of 15th International Conference on Offshore and Polar Engineers, Seoul, Korea, pp.371-376, 2005.6.

Ishikawa, T., Kobayashi, K., Sekine, E. and Ohnishi, Y. : Evaluation of the effect of particle shape on the bearing capacity of railroad ballast with discontinuous analysis, Proceedings of the 7th International Conference on the Bearing Capacity of Roads, Railways and Airfields, Trondheim, [1/1(CD-ROM)52], 2005.6.

Ishikawa, T., Tamaki, K. and Miura, S. : Numerical Simulation of Shear Tests for Granular Materials with 3D DEM, Proceedings of the 11th International Conference on Computer Methods and Advances in Geomechanics, Torino, Vol. 2, pp.65-72, 2005.6.

<2004>

Ishikawa, T., Tamaki, K., Ohnishi, Y. and Miki, S. : Numerical simulation of shear tests with DDA considering change of pore pressure in granular materials, Proceedings of the 3rd Asian Rock Mechanics Symposium (ARMS2004), Kyoto, pp.1227-1232, 2004.11.

Ishikawa, T., Sekine, E., Kohno, A. and Miura, S. : An Estimation Method of Residual Settlement in Ballasted Track under Repeated Moving Loads, Proceedings of Cyclic Behaviour of Soils and Liquefaction Phenomena (CBS04), Bochum, pp.633-640, 2004.3.

<2003>

Kawamura, S., Miura, S. and Yokohama, S.: Anisotropy in bearing capacity-lateral deformation behavior of sand ground, Proceedings of the 3rd International Symposium on Deformation Characteristics of Geomaterials(IS-Lyon03), Lyon, France, pp.1303-1310, 2003.9.

Yokohama, S., Miura, S. and Kawamura, S.: Deformation behavior of structure-sand deposits subjected to cyclic loading and FE analysis,Proceedings of the 3rd International Symposium on Deformation Characteristics of Geomaterials(IS-Lyon03), Lyon, France, pp.809-815, 2003.9.

Ishikawa, T. and Sekine, E. : Dynamic behavior of railroad ballast in shaking table tests, Proceedings of the 3rd International Symposium on Deformation Chracteristics of Geomaterials (IS-Lyon03), Lyon, France, pp.841-848, 2003.9.

Ishikawa, T., Ohnishi, Y., Jian Hong Wu and Nishiyama, S. : Modeling for Energy Dissipation in Free Fall Tests of Spherical Stone with Discontinuous Analysis, Proceedings of Soil and Rock America (SARA) 2003, Cambrige, UK, pp.1105-1110, 2003.6.

Yokohama, S. and Miura, S.: Lateral flow deformation analysis of sand ground-structure subjected to cyclic loading and its evaluation, Proceedings of 13th International Conference on Offshore and Polar Engineering, Vol.1, Honolulu, Hawaii, USA, pp.61-67, (CD-ROM), 2003.5.

<2002>

Ishikawa, T., Ohnishi, Y. and Sekine, E. : Shaking table tests of coarse granular materials with discontinuous analysis, Proceedings of the 5th International Conference on the Analysis of Discontinuous Deformation (ICADD-5), pp.181-188, Wuhan, 2002.10.