平成17年5月地盤工学会論文賞 「Anisotropic behavior of soft sedimentary rock and a constitutive model」
GEOMATE 2015 Best Paper Award 「Liquefaction analysis of reclaimed ground in Urayasu city considering main shock and aftershock of the 2011 off the coast of Tohoku earthquake」
平成27年度地盤工学会論文賞 「Study of dynamic stability of unsaturated embankments with different water contents by centrifugal model tests」
所属学会
土木学会,地盤工学会,材料学会,資源・素材学会
研究業績 (2019年3月20日 更新)
論文(学術誌), SCIENTIFIC JOURNAL
Oka, F, Shahbodagh Khan, B. and Kimoto, S., A computational model for dynamic
strain localization in unsaturated elasto-viscoplastic soils, Int J Numer
Anal Methods Geomech., Vol. 43, pp. 138-165, DOI: 10.1002/nag.2857, 2019.
Iwai, H., Konishi, Y., Saimyou, K., Kimoto, S., Oka, F., Rate effect on the stress-strain relations of synthetic carbon dioxide hydrate-bearing sand and its dissociation test by thermal stimulation, Soils and Foundations, Vol. 58(5), https://doi.org/10.1016/j.sandf.2018.05.007, 2018.
Chen, L., Kimoto, S., Numerical Analysis of Damaged River Embankment during
the 2011 Tohoku Earthquake Using a Multiphase-Coupled FEM Analysis Method,
Geofluids, Volume 2018, Article ID 5191647, https://doi.org/10.1155/2018/5191647, 2018.
Oka, F., Kimoto, S., A cyclic elastoplastic constitutive model and effect
of non-associativity on the response of liquefiable sandy soils, Acta Geotechnica,
https://doi.org/10.1007/s11440-018-0659-0, 2018.
Iwai, H, Konishi, Y., Kimoto, S., Undrained triaxial compression tests on artificial CO2-hydratebearing sand specimens, Int. Conf. on Greenhouse Gas Control Technologies, GHGT-13, 14-18, November 2016, Lausanne, Switzerland, Energy Procedia, 114, pp.3175-3184, 2017.
Kimoto, S., Oka, F., Morimoto, Y., The effective stress concept and the
evaluation of changes in pore air pressure under jacketed isotropic compression
tests for dry sand based on the 2‐phase porous theory. Int J Numer Anal
Methods Geomech. 2017;1–14. https://doi.org/10.1002/nag.2705, DOI: 10.1002/nag.2705, 2017.
Oka, F., Kimoto, S., Yui, H., Matsuoka, H., Tsai, P.S., Liquefaction analyses of ground and levee considering the damage by the 2011 Great Tohoku Earthquake and lessons, Journal of Disaster Research, Vol.11, No.5, pp.830-844, 2016.
Oka, F., Yui, H., Kimoto, S., Kinugawa, T., New evaluation method for liquefaction
of ground using dynamic liquefaction analysis method and its application,
Int. J. of Geomechanics, Vol.16 (5), DOI: 10.1061/(ASCE)GM.1943-5622.0000557, 2016.
Oka, F., Takada, N., Shimono, K., Higo, Y., Kimoto, S., A large-scale excavation in soft Holocene deposit and its elasto-viscoplastic analysis, Acta Geotechnica, DOI 10.1007/s11440-016-0445-9, 2016.
Akaki, T., Kimoto, S. and Oka, F., Chemo-thermo-mechanically coupled seismic analysis of methane hydrate-bearing sediments during a predicted Nankai Trough Earthquake, Int. J. for Numerical and Analytical Methods in Geomechanics, 2016 (Published online in Wiley Online Library (wileyonlinelibrary.com). DOI: 10.1002/nag.2527).
Higo, Y., Lee, C.-W., Doi, T., Kinugawa, T., Kimura, M., Kimoto, S., Oka, F., Study of dynamic stability of unsaturated embankments with different water contents by centrifugal model tests, Soils and Foundations, Vol. 55, No.1, 112-126, 2015.
Kimoto, S., Shahbodagh Khan, B., Mirjalili, M, and Oka, F., A Cyclic Elasto-Viscoplastic Constitutive Model for Clay Considering the Nonlinear Kinematic Hardening Rules and the Structural Degradation, Int. J. Geomechanics, Vol.15, No.5, A4014005, 2015.
Shahbodagh Khan, B., Mirjalili, M., Kimoto, S., and Oka, F., Dynamic analysis of strain localization in water-saturated clay using a cyclic elasto-viscoplastic model, Int. J. Numer. Anal. Meth. Geomech., Vol.38, pp. 771-793, 2014.
Kimoto, S., Oka, F., and Garcia, E.F., Numerical Simulation of the Rainfall
Infiltration on Unsaturated Soil Slope Considering a Seepage Flow, Geotechnical
Engineering Journal of the SEAGS & AGSSEA Vol. 44, No. 3, September,
pp. 1-13, 2013.
Karim, M.R., Oka, F., Krabbenhoft, K., Leroueil, S. and Kimoto, S., Simulation of long-term consolidation behavior of soft sensitive clay using an elasto-viscoplastic constitutive model, Int. J. Num. Anal. Meth. in Geomech., Vol. 37, pp. 2801-2824, 2013.
Higo, Y., Oka, F., Sato, T., Matsushima, Y. and Kimoto, S., Investigation of localized deformation in partially saturated sand under triaxial compression by microfocus X-ray CT with digital image correlation, Soils and Foundations, Vol. 53, No. 2, pp.181-198, 2013.
岡二三生,吉田信之,甲斐誠士,飛田哲男,肥後陽介,鳥居宣之,鏡原聖史,中西典明,木元小百合,山川優樹,東瀬康孝,渦岡良介,京谷孝史, 東北地方太平洋沖地震被害調査報告-宮城県北部-, 地盤工学ジャーナル, Vol. 7, No. 1, pp. 37-55, 2012.
Oka, F., Tsai, P.S., Kimoto, S. and Kato, R., Damage patterns of river embankments due to the 2011 off the Pacific Coast of Tohoku earthquake and a numerial modeling of the deformation of river embankments with a clayey subsoil layer, Soils and Foundations, Vol. 52, No. 5, pp. 890-899, 2012.
Mirjalili, M., Kimoto, S., Oka, F. and Hattori, T., Long-term consolidation analysis of a large-scale embankment construction on soft clay deposits using an elasto-viscoplastic model, Soils and Foundations, Vol. 52, No.1, pp. 18-37, 2012.
Higo, Y, Oka, F., Kimoto, S., Sanagawa, T., Matsushima, Y., Study of Strain Localization and Microstructural Changes in Partially Saturated Sand during Triaxial Tests Using Microfocus X-ray CT, Soils and Foundations, Vol. 51, No. 1, pp. 95-112, 2011.
Karunawardena, A., Oka, F. and Kimoto, S., Elasto-viscoplastic modeling of the consolidation of Sri Lankan peaty clay, Geomechanics and Engineering, Vol. 3, No. 3, pp. 233-254, 2011.
Mirjalili, M., Kimoto, S., Oka, F. and Higo, Y., Elasto-visoplastic modeling of Osaka soft clay considering destructuration and its effect on the consolidation analysis of an embankment, Geomechanics and Geoengineerin, Vol. 6, No. 2, pp. 69-89, 2011.
Kimoto, S., Oka, F., Fukutani, J. Yabuki , T., Nakashima, K., Monotonic and cyclic behavior of unsaturated sandy sol under drained and fully undrained conditions, Soils and Foundations, Vol. 51, No. 4, pp. 663-681, 2011.
Garcia, E., Oka, F. and Kimoto, S., Numerical analysis of a one-dimensional
infiltration problem in unsaturated soil by a seepage-deformation coupled
method, Int. J. Numerical and Analytical Methods in Gomechanics, Vol. 35,
No. 5, pp. 544-568, 2011, doi:10.1002/nag.908, 2010.
Oka, F., Kimoto, S., Takada, N., Gotoh, H., and Higo, Y., A seepage-deformation coupled analysis of an unsaturated river embankment using a multiphase elatso-viscoplastic theory, Soils and Foundations, Vol. 50, No.4, pp. 483-494, 2010.
Oka, F., Kodaka, T., Suzuki, H. Kim, Y.-S., Nishimatsu, N. and Kimoto, S., Experimental Study on the Behavior of Unsaturated Compacted Silt under Triaxial Compression, Soils and Foundations, Vol.50, No.1, February Issue, pp.27-44, 2010.
Kimoto, S., Oka, F., Fushita, T., A chemo–thermo–mechanically coupled analysis of ground deformation induced by gas hydrate dissociation, Int. J. of Mechanical Sciences Vol. 52, pp. 365-376, 2010.
Oka, F., Feng, H., Kimoto, S. and Higo, Y., An elasto-viscoplastic numerical analysis of the swelling process of unsaturated bentonite, J. Appl. Mech., JSCE, Vol. 11, pp. 369-376, 2008.
岡二三生・木元小百合, 弾粘塑性構成式と南海トラフ海底地盤で採取された土への適用, 材料, Vol. 57, No. 3, pp. 237-242, Mar. 2008.
Kodaka, T., Higo, Y., Kimoto, S. and Oka, F., Effect of sample shape on strain localization of water-saturated clay, Int. J. Numerical and Analytical method in Geomechanics, Vol. 31, No. 3, pp.483-521, 2007.
Kimoto, S., Oka, F., Fushita, T., and Fujiwaki, M.: A Chemo-Thermo-Mechanically Coupled Numerical Simulation of the Ground Deformation due to Methane Hydrate Dissociation, Computers and Geotechnics, Vol. 34, pp. 216-228, 2007.
Boonlert, S., Oka, F., Kimoto, S. , Kodaka, T., Higo, Y., Elasto-viscoplastic finite element study of the effect of degradation on bearing capacity of footing on clay ground, Geomechanics and Geoengineering, Vol. 2, Issue 4, pp. 235-251, 2007.
Higo, Y., Oka, F., Kodaka, T. and Kimoto, S., Three-dimensional strain localization of water-saturated clay and numerical simulation using an elasto-viscoplastic model, Philosophical Magazine, Vol. 86, Nos.21-22, 21-July1-1 August 2006, pp. 3205-3240, 2006.
Kimoto, S. and Oka F., An elasto-viscoplastic model for clay considering destructuralization and consolidation analysis of unstable behavior, Soils and Foundations, Vol. 45, No. 2, pp. 29-42, 2005.
Kimoto, S., Oka, F. and Higo, Y., Strain localization analysis of elasto-viscoplastic soil considering structural degradation, Int. J. Computer Methods in Applied Mechanics and Engineering, Vol. 193, Issues 27-29, pp. 2845-2866, 2004.
Oka, F., Kodaka, T., Kimoto, S., Ishigaki, S. and Tsuji C., Step-changed strain rate effect on the stress-strain relations of clay and a constitutive modeling, Soils and Foundations, Special Issue on Deformation Characteristics of Geomaterials (IS-Lyon),Vol. 43, No. 4, pp. 189-202, 2003.
Oka, F., Kimoto, S., Kobayashi, H. and Adachi, T., Anisotropic behavior of soft sedimentary rock and a constitutive model, Soils and Foundations, Vol. 42, No. 5, October, pp. 59-70, 2002.
Oka, F., Higo, Y. and Kimoto, S., Effect of dilatancy on the strain localization of water-saturated elasto-viscoplastic soil, Int. J. of Solids and Structures, Vol.39, Issues 13-14, pp. 3625-3647, 2002.
査読付き学会論文, CONFERENCE PAPER (REFEREED)
Kimoto, S., Matsuoka, H., Oka, F., Dynamic Analysis of River Embankment Considering Soil Improvement Using a Finite Deformation FE analysis Method, 15th IACMAG, 19-23 October 2017, Wuhan, China.
Akaki, T., Kimoto, S., Numerical study on unfavorable influences of methane hydrate production on dynamic behavior of seabed sediments during an earthquake, 19th Int. Conf. on Soil Mechanics and Geotechnical Engineering, Seoul, Korea, Sep. 17-22, 2017.
Kimoto, S., Ishikawa, R., Akaki, T., Behavior of unsaturated sandy soil during triaxial compression tests under fully undrained conditions and its modelling, 19th Int. Conf. on Soil Mechanics and Geotechnical Engineering, Seoul, Korea, Sep. 17-22, 2017.
Kimoto, S., Matsuoka, H., Yui, H. Oka, F., Liquefaction analysis of reclaimed ground in Urayasu city considering main shock and aftershock of the 2011 off the coast of Tohoku earthquake, Proc. of fifth Int. Conf. GEOMATE 2015, Geotechnique Construction Materials and Environment, Osaka, Japan,16-18 November, pp.401-406, 2015.
Iwai, H., Saimyou, K. Kimoto, S., Oka, F., Development of a temperature
and pressure controlled triaxial apparatus and dissociation tests of carbon
dioxide hydrate containing soils, The 15th Asian Regional Conference on
Soil Mechanics and Geotechnical Engineering, Fukuoka, Japan, 9-13 November,
Japanese Geotechnical Society Special Publication, Vol. 2, No.18, 518-521,
http://doi.org/10.3208/jgssp.JPN-143, 2015.
Akaki, T., Kimoto, S., Oka F., Dynamic analysis of hydrate-bearing seabed sediments considering methane gas production induced by depressurization, The 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Fukuoka, Japan, 9-13 November, Japanese Geotechnical Society Special Publication, Vol. 2, No.18, 676-680, http://doi.org/10.3208/jgssp.JPN-134, 2015.
Kimoto, S., Akaki, T., Kitano, T., Iwai, H., and Oka, F., Dynamic behavior
of hydrate-bearing sediments during earthquakes, Computer methods and Recent
Advances in Geomechanics, Oka, Murakami, Uzuoka & Kimoto (eds.), Proc.
of the 14th Int. Conf. of International Association for Computer Methods
and Recent Advances in Geomechanics, Kyoto, Japan, 22-25 September, 2014,
1669-1674.
Takyu, T., Kimoto, S., and Oka, F., Numerical simulation of landslide due
to excavation of soft rock using an elasto-viscoplastic water-soil coupled
FEM, Computer methods and Recent Advances in Geomechanics, Oka, Murakami,
Uzuoka & Kimoto (eds.), Proc. of the 14th Int. Conf. of International
Association for Computer Methods and Recent Advances in Geomechanics, Kyoto,
Japan, 22-25 September, 1095-1100, 2014.
Takada, N., Simono, K., Oka, F., Kimoto, S. and Higo, Y., Numerical evaluation
of the deformation of earth retaining wall reinforced by soil buttress
method during the excavation in soft soil, Computer methods and Recent
Advances in Geomechanics, Oka, Murakami, Uzuoka & Kimoto (eds.), Proc.
of the 14th Int. Conf. of International Association for Computer Methods
and Recent Advances in Geomechanics, Kyoto, Japan, 22-25 September, 1037-1042,
2014.
Kato, R., Oka, F. and Kimoto, S., A numerical simulation of seismic behavior
of highway embankments considering seepage flow, Computer methods and Recent
Advances in Geomechanics, Oka, Murakami, Uzuoka & Kimoto (eds.), Proc.
of the 14th Int. Conf. of International Association for Computer Methods
and Recent Advances in Geomechanics, Kyoto, Japan, 22-25 September, 755-760,
2014.
Sadeghi, H., Kimoto, S., and Oka, F., Dynamic analysis of river embankments
during earthquakes using a finite deformation FE analysis method, Computer
methods and Recent Advances in Geomechanics, Oka, Murakami, Uzuoka &
Kimoto (eds.), Proc. of the 14th Int. Conf. of International Association
for Computer Methods and Recent Advances in Geomechanics, Kyoto, Japan,
22-25 September, 637-642, 2014, 637-642.
Iwai, H., Kimoto, S., Akaki, T., and Oka, F., Instability analysis and
numerical simulation of the dissociation process of methane hydrate bearing
soil, Computer methods and Recent Advances in Geomechanics, Oka, Murakami,
Uzuoka & Kimoto (eds.), Proc. of the 14th Int. Conf. of International
Association for Computer Methods and Recent Advances in Geomechanics, Kyoto,
Japan, 22-25 September, 421-426, 2014.
Higo, Y., Oka, F., Kimoto, S., Kinugawa, T., Lee, C.-W. and Doi, T., Dynamic centrifugal model test for unsaturated embankments considering seepage flow and the numerical analysis, Proc. 18th ICSMGE, Paris, 2013, edited by P. Delage, J. Desrues, R. Frank, A. Puech., F. Schlosser, , Paris, France, Sep. 2-6, pp. 923-926, 2013.
山田茂治, 岡二三生, 木元小百合, 肥後陽介, 堤防内部構造調査における電磁波速度構造調査の適用について, 地盤の環境・計測シンポジウム2012論文集, 地盤工学会関西支部, pp. 151-154, 2012.
Oka, F., Kimoto, S., Garcia, E. and Yamamoto, H., Effect of the rainfall infiltration on an unsaturated levee during seepage flow, Computer methods for geomechanics: Fontiers and New Applications, Proc. 13th Int. Conf. on IACMAC, Melbourne, Nasser Khalili and Markus Oeser eds.Center for Infrastructures and safety, Sydney, pp. 614-619, 2011.
Oka, F., Kimoto, S., Nguyen, Q.H., Elasto-viscoplasitc constitutive modeling of soft sedimentary rocks, Proc. of the 15th European Conference on Soil Mechanics and Geotechnical Engineering, Athene, 2011, pp.563-568, 2011.
Oka, F., Higo, Y., Kimoto, S., Nakashima, K., Ohta, H. and Sanagawa, T., Observation of compaction bands in diatomaceous mudstone under triaxial conditions by image analysis and microfocus X-ray CT, Soil Mechanics and Geotechnical Engineering: Challenges and Solutions, Proc. the 14th Asian Regional Conference of Soil Mechanics and Geotechnical Engineering, May 23-27 2011, Hong-Kong, China, paper No.198, 2011.
Kimoto, S., Oka, F., Miki, Y., Fukuda, T., Iwai, H., Kitano, T. A chemo-thermo-mechanically coupled analysis of hydrate bearing sediments, The 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Hong Kong, China, 23-27 May 2011, Paper No. TC103-5, 2011.
Kimoto, S., Oka, F., Cyclic behavior of unsaturated silty soil under triaxial conditions, The 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Hong Kong, China, 23-27 May 2011, Paper No. 250, 2011.
Oka, F., Kimoto, S., Kato, R., Sunami, S., Kodaka, T., Unsaturated River Embankment due to Seepage Flow and Overflow, Proc. 12th IACMAG, edited by D.N.Singh, Goa, India, Oct. 1-6, pp. 2029-2041, 2008.
Oka, F., Higo, Y., Kimoto, S., Nakano, M., Mukai, H. Kunotsubo, H., Izumitani, T., Takeda, S., Amano, K., Nagaya, J., Elasto-viscoplastic Numerical Analysis of a Deep Excavation in an Osaka Soft Clay Deposit Using the Open-cut Method, Proc. 12th IACMAG, 、edited by D.N.Singh, Goa, India, Oct. 1-6, pp. 4709-4715, 2008.
Oka, F., Kimoto, S., Yamazaki, S. and Kato, R., Multi-phase coupled elasto-viscoplastic analysis of unsaturated soil slope during seepage flow, CD-Rom Proc. of XXII ICTAM, SM08, 25-29 August 2008, Adelaide, Australia.
岡二三生、山崎真也、木元小百合、肥後陽介、森中雄一、不飽和河川堤防の多相浸透―変形連成解析、第57回理論応用力学講演会講演論文集、NCTAM2008, pp. 347-348, 2008.
Oka, F., Feng, H., and Kimoto, S., A numerical simulation of triaxial tests of unsaturated soil at constant wate and constant air content by using an elasto-viscoplastic model, Proc. 1st European Conference on Unsaturated Soils, E-Unsat 2008, Durham, UK, Jul.2-4,2008, Unsaturated Soils:Adavances in Geo-Engineering, Toll,D.G., Augrade,C.E., Gallipoli, D. and Wheeler, S.J. eds., Taylor and Francis Group, pp.735-741, 2008.
Higo,Y., Oka, F., Kimoto, S., Kodaka, T. and Adachi, T., Three –dimensional strain localization of clay with different shapes of specimens, Proc. 13th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Allied Publishers Private Limited, ASSMGE, Vol.1, pp.3-6, 2007.
Oka, F, Kodaka, T., Kimoto, S., Kato, R. and Sunami, S., Hydro-Mechanical Coupled Analysis of Unsaturated River Embankment due to Seepage Flow, Key Engineering Materials, 2007, Vols. 340-341, pp. 1223-1230.online at http://www.scientific.net Trans Tech Publications, Switzerland. (Presented at 8th Asian n-Pacific Symposium on Engineering Plasticity and Its Applications, September 25-29, Nagoya, 2006 )
Kimoto, S., Oka, F., Kim, Y.-S., Takada, N. and Higo, Y., A Finite element analysis of the thermo-hydro-mechanically coupled problem of a cohesive deposit using a thermo-elasto-viscoplastic model, Key Engineering Materials, 2007, Vols. 340-341, pp. 1291-1296. online at http://www.scientific.net Trans Tech Publications, Switzerland. (Presented at 8th Asian n-Pacific Symposium on Engineering Plasticity and Its Applications, September 25-29, Nagoya, 2006 )
Oka, F., Kodaka, T., Kimoto, S., Kim, Y.-S and Yamasaki, N., A Multi-phase Coupled FE Analysis Using an Elasto-viscoplastic Model for Unsaturated soil, Proc. 2nd JAPAN-US Workshop on Testing, Modeling, and Simulation, Sep. 8-10 2005, Kyoto, Japan, Geotechnical Special Publication, No. 156, ASCE, pp. 124-131, 2006.
Oka, F., Kodaka, T., Kimoto, S., Kim, Y.-S and Yamasaki, N., An Elasto-viscoplastic Model and Multiphase Coupled FE Analysis for Unsaturated Soil, Proc. 4th Int. Conf. on Unsaturated Soils, Apr. 2-6 2006, Carefree, Arizona, Geotechnical Special Publication, No. 147, ASCE, Vol.2, pp. 2039-2050, 2006.
Oka, F., Kodaka, T., Kimoto, S., Ichinose, T. and Higo, Y., Strain localization of rectangular clay specimens under undrained traixial compression conditions, Proc. 16th ICSMGE, Vol.2, pp. 841-844, 2005.
Oka, F. and Kimoto, S., Calibration of elasto-viscoplastic models for cohesive soils, Proc. 11th Int. Conference of IACMAG, G. Barla and M.Barla editors, AGI, Patron Editore, ,Vol.1, pp.449-456, 2005.
Kim, Y., Kimoto, S., Oka, F. and Kodaka, T., Numerical simulation of the triaxial compression behaviour of unsaturated silt using an elasto-viscoplastic model, Proc. 11th Int. Conference of IACMAG, G. Barla and M.Barla editors, AGI, Patron Editore, , Vol.1, pp. 361-368, 2005.
Oka, F., Kimoto, S., Kodaka, T., Takada, N., Fujita, Y. and Higo, Y., A finite element analysis of the deformation behavior of a multiphase seabed ground due to the dissociation of natural gas hydrates, Proc. 11th Int. Conference of IACMAG, G. Barla and M.Barla editors, AGI, Patron Editore, Vol.1, pp. 127-134, 2005.
Oka, F. and Kimoto, S., An elasto-viscoplastic model for clay considering destructuralization and prediction of compaction bands, Geomechanics, Testing, Modeling and Simulation, Geotechnical Special Publication No. 143, ASCE, J.A. Yamamuro, J.Koseki editors, ASCE, pp. 71-80, 2005. (国際学会)
Kimoto, S., Konishi, Y., Iwai, H. Wu, Yuguang, Yoshimoto, M., Takubo, G.,
Time dependent behavior of CO2 hydrate-bearing sediments and its modelling
by an elasto-viscoplastic model, Int. Sym. on Energy Geotechnics, SEG-2018,
26-28 September, Lausanne, Switzerland, Digital Proceedings, https://seg2018.epfl.ch/wp-content/uploads/2018/08/EA_098_Kimoto.pdf, 2018.
Oka, F., Kimoto, S., Cyclic elastoplastic constitutive model for soils based on non-linear kinematical hardening rule with volumetric and deviatoric kinematical parameters, Papamichos E., Papanastasiou P., Pasternak E., Dyskin A. (eds) Bifurcation and Degradation of Geomaterials with Engineering Applications, IWBDG 2017, Springer Series in Geomechanics and Geoengineering, pp. 81-87, 2017.
Kimoto, S., Akaki, T., Loret, B., Oka, F., A numerical model of internal erosion for multiphase geomaterials, bifurcation and degradation of geomaterials with engineering applications, Proc. of the 11th Int. Workshop on Bifurcation and Degradation in Geomaterials, Dedicated to Hans Muhlhaus, Limassol, Cyprus, 21–25 May 2017, Springer Series in Geomechanics and Geoengineering, pp.125-131, 2017.
Akaki T and Kimoto S., Numerical stability of chemo-thermo-mechanically coupled dynamical analyses for hydrate-bearing sediments using a semi-implicit scheme for the hydrate dissociation rate, Proc. of 28th KKHTCNN, Bangkok, Thailand, 16-18 November, 2015.
Kimoto, S., Iwai, H., Akaki, T., Oka, F., Instability of Dissociation Process of Methane Hydrate Bearing Soil, Bifurcation and Degradation of Geomaterials in the New Millennium, Bifurcation and Degradation of Geomaterials in the New Millennium, Proc. of the 10th International Workshop on Bifurcation and Degradation in Geomaterials, Hong Kong, May 28-30, 2014, Kam-Tim Chau and Jidong Zhao (Eds), Springer, 245-251, 2014.
Yui, H. Oka, F., Kimoto, S. and Kinugawa, T., Estimation of the liquefaction in Osaka city due to an expected Nankai Trough earthquake using a dynamic analysis method, Proc. 27th KKHTCNN, Shanghai, China, Nov. 10-12, 2014, No. G-7-6, 2014.
Iwai, H., Kimoto, S., Oka, F., Higo, Y., Shiraishi, M, Formation and Dissociation Tests of Carbon Dioxide Hydrate Containing Soils by a Triaxial Apparatus, The Twenty-Sixth KKHTCNN Symposium on Civil Engineering, November 18-20, 2013, Singapore, 2013.
Kimoto, S., Garcia, E.F., and Oka, F., Multiphase Coupled Numerical Simulation of the Rainfall Infiltration into Unsaturated Embankments, 5th Biot Conference on Poromechanics, Vienna, Austria, July 10-12, pp. 2103-2112, 2013.
Kimoto, S. Shahbodagh Khan, B., Mirjalili, M. and Oka, F., Cyclic Elasto-Viscoplastic Constitutive Model for Soils considering the Nonlinear Kinematic Hardening Rules and Strain-induced Degradation, 8th ESMC, Graz, G.A.Holzaphel and R.W.Oden, Abstract, MS-17.8, 2012.
Oka, F., Tsai, P.S., Kimoto, S. and Kato, R., Numerical analysis of the damage of river embankment on soft soil deposit due to earthquakes with long duration time, Proc. of Int. Symp. on Engineering Lessons Learned from the Great Earthquakes, JAEE et al., Tokyo, pp. 925-936, 2012.
Higo, Y., Oka, F., Sato, T., Matsushima, Y. and Kimoto, S., Macroscopic and microscopic observations of strain localization in an unsaturated sand under triaxial conditions using μX-ray CT and DIC image, Proc. of 25th KKCNN, October 22-24, Busan, Korea, pp. 415-418, 2012.
Akaki, T., Oka, F., Kimoto, S., Higo, Y. and Iwai, H., Effect of permeability and dissociation rate on a chemo-thermo mechanically coupled numerical analysis of hydrate-bearing sediment, Prof. 25th KKCNN, Busan, Korea, October 2012, pp. 351-355, 2012.
Oka, F., Tsai, P.S. and Kimoto, S., Effect of seismic wave form on the
behavior of river embankment on the soft soil deposit, Constitutive modeling
of geomaterials, Qing Yang, Jian-Min Zhang, Hong Zheng and Yanping Yao
eds., Advances and New applications, Springer Series in Geomechnics &
Application, Springer, pp. 751-755, 2012.
Oka, F. and Kimoto, S., Simulation of isotropic cyclic compression by an
elasto-viscoplastic constitutive model based on the nonlinear kinematic
hardening rules, Constitutive modeling of geomaterials, Qing Yang, Jian-Min
Zhang, Hong Zheng and Yanping Yao eds., Advances and New applications,
Springer Series in Geomechnics & Application, Springer, pp. 215-221,
2012.
Lee, C.-W., Doi, T., Kinugawa, T., Higo, Y., Kimura, M., Kimoto, S. and Oka, F., Dynamic centrifuge modeling tests for the partially saturated embankments considering seepage flow, Proc. 24th KKCNN Symposium on Civil Engineering, Dec. 14-16, 2011, pp. 455-458, 2011.
Oka, F., Kimoto, S., Kato, R., Seepage-deformation Coupled Numerical Analysis of Unsaturated River Embankment using an Elasto-plastic Model, GeoMat, First International Conference on Geotechnique, Construction Materials and Environment, Mie, Japan, Nov.21-23, 2011, ISBN: 978-4-9905958-0-7 C3051, 2011.
Oka, F., Kimoto, S., Kitano, T., Iwai, H., and Higo, Y., A Numerical Analysis of Hydrate-Bearing Subsoil during Dissociation using a Chemo-Thermo-Mechanically Coupled Analysis Method, Proceeding of 4th International Conference GeoProc2011: Cross Boundaries Through THMC Integration, 6-9 July 2011, Perth, Australia, CD-R, Paper No. GP060, 2011.
Higo,Y., Oka, F., Kimoto, S., Sanagawa, T., and Matsuhima, Y., Observation of microstructural changes and strain localization of unsaturated sands using microfocus X-ray CT, Advances in Bifurcation and Degradation in Geomaterials, Proceedings of the 9th International Workshop on Bifurcation and Degradation in Geomaterials, Bonelli, S., Dascalu, C. and Nicot, F. eds., Springer, pp. 35-41, 2011.
Oka, F., Garcia, E. and Kimoto, S., Instability of unsaturated soil during the water infiltration, advances in bifurcation and degradation in geomaterials, Proceedings of the 9th International Workshop on Bifurcation and Degradation in Geomaterials, Bonelli, S., Dascalu, C. and Nicot, F. eds., Springer, pp. 293-297, 2011.
Kimoto, S., Oka, F., Miki, Y., Fukuda, T. and H. Iwai, A Chemo-Thermo-Mechanically Coupled Behavior during Gas Hydrate Dissociation and its Numerical analysis, Advances in Bifurcation and Degradation in Geomaterials, Proc. of 9th International Workshop on Bifurcation and Degradation in Geomaterials, France, Stephane Bonelli, Cristian Dascalu, Francois Nicot Eds., pp. 85-92, 2011.
Mirjalili, M., Shahbodagh Khan, B., Oka, F. and Kimoto, S., Dynamic strain localization analysis of elasto-viscoplastic soil using updated Lagrangian finite element formulation, Proc. 2nd Int. Symp. on Computational Geomechanics, S. Pietruzczak and G.N. Pande eds., Cavtat-Dubrovnik, 27-29 April, pp. 203-210, 2011.
Kano, S., Oka, F. and Kimoto, S., Cyclic behavior of unsaturated sandy soil under fully undrained conditions, Proc. 24th KKCNN symposium on Civil Engineering, Dec. 14-16, 2011, pp. 403-406, 2011.
Kimoto, S., Oka, F., Miki, Y., A Chemo-Thermo-Mechanically Coupled Numerical Analysis during Gas Hydrate Dissociation, The Twenty-Third KKCNN Symposium on Civil Engineering, November 13–15, 2010, Taipei
Oka, F., Heitor, A.P., Kita, N., Kimoto, S., Effect of Poisson’s ratio on the dynamic instability of water-saturated elasto-plastic soil, Proc. of 4th Biot conference on Poromechanics, Hoe I. Ling, Andrew Smyth, Raimondo Betti eds., DEStech Publication Inc., pp.1103-1108, 2009.
Kato, R., Sunami, S., Oka, F., Kimoto, S. and Kodaka, T., A seepage-deformation
coupled analysis method for unsaturated river embankments, Proc. Int. Symp.
on Prediction and Simulation Methods for Geohazard Mitigation – Oka, Murakami
& Kimoto (eds), Taylor & Francis group, London, pp.401-407, 2009.
Higo, Y., Kimoto, S., Oka, F., Morinaka, Y. and Goto, Y., Chen, Z., An
MPM-FDM coupled simulation method for analyzing partially-saturated soil
responses, Proc. Int. Symp. on Prediction and Simulation Methods for Geohazard
Mitigation – Oka, Murakami & Kimoto (eds), Taylor & Francis group,
London, pp.219-225, 2009.
Oka, F. Kimoto, S., Takada, N. and Higo, Y., A multiphase elasto-viscoplastic
analysis of an unsaturated river, embankment associated with seepage flow,
Proc. Int. Symp. on Prediction and Simulation Methods for Geohazard Mitigation
– Oka, Murakami & Kimoto (eds), Taylor & Francis group, London,
pp.128-132, 2009.
Higo, Y., Goto, Y., Kimoto, S., Oka, F., Chen, Z., A coupled material point/finite difference scheme for model based simulation of fluid-saturated porous media, Proc. the 1st Int. Symp. on Computational Geomechanics, IC2E, Int. Center for Computational Engineering, Rhodes, Greece, S. Pietruszczak, G N Pande, C Tamagnini and R Wan eds., pp.447-456, 2009.
Oka, F., Feng, H., Kimoto, S., Tinet, A. J., Higo, Y., Numerical modeling of swelling and the osmotic consolidation of bentonite, Proc. the 1st Int. Symp. on Computational Geomechanics, IC2E, Int. Center for Computational Engineering, Rhodes, Greece, S. Pietruszczak, G N Pande,C Tamagnini and R Wan eds., pp.532-543, 2009.
Kimoto, S., Miki, Y. and Oka, F., Numerical modeling of gas hydrate formation in the ground, Proc. the 1st Int. Symp. on Computational Geomechanics, IC2E, Int. Center for Computational Engineering, S. Pietruszczak, G N Pande, C Tamagnini and R Wan eds., 29 April – 1 May 2009, Juan-les-Pins, France, pp.513-522, 2009.
Higo, Y., Oka, F., Kimoto, S., Sato, T., Sawada, M. and Sanagawa, T., Visualization of Strain Localization and Microstructure in Soil Specimens using Microfocus X-ray CT, The Twenty-First KKCNN Symposium on Civil Engineering, October 27–28, 2008, Singapore, 2008.
Oka, F., Kimoto, S., Gotoh, H., Kato, R., Sunami, S. and Kodaka, T., A hydro-mechanical coupled analysis of the deformation of an unsaturated river embankment due to seepage flow and overflow, Proc. APCOM’07 in conjunction with EPMESCXI, Dec.3-6, 2007, Kyoto Japan, paper No.MS29-1-1,2007
Oka, F., Kimoto, S., Fujiwaki, M. and Fushita, T., A Chemo-Thermo-mechanically Coupled Analysis of Subsurface Ground Deformation Induced by Methane Hydrate Dissociation, Proceedings of the 2nd International Conference on Porous Media and its Applications in Science and Engineering, June 17-21, 2007, Kauai, Hawaii, USA, 2007.
Kimoto, S., Oka, F., Fujiwaki, M. and Fujita, Y., Numerical Analysis of Deformation of Methane Hydrated Contained Soil due to the Dissociation of Gas Hydrate, Bifurcation, Instability, Degradation in Geomechanics, George E. Exadaktylos and Ioannis G. Vardoulakis (eds.), Springer, pp. 361-380, 2007.
Oka, F., Kodaka, T. and Kimoto, S., Numerical simulation for methane hydrate dissociation by chemo-thermo-mechanically coupled FEM, Proc. of the second international workshop on Gas Hydrate Studies and Other Related Topics -for the Future Energy and Environment Considerations-, October 22-23, 2005, Kitami, Japan, pp. 149-156, 2007.
Kimoto, S., Oka, F., Fushita, T., and Fujiwaki, M.: Numerical Simulation
of the Ground Deformation due to Methane Hydrate Dissociation by a Chemo-Thermo-Mechanically
Coupled Analysis, Proc. 9th Int. Symp. On Numerical Models in geomechanics,
Rodos, 25-27, April, 2007, G.N. Pande and S. Pietruszczak eds., Taylor
& Fransis Group, Balkema, pp. 303-309, 2007.
Ogisako, E., Nishio, S. and Denda, A., Oka, F., Kimoto, S., Simulation
of triaxial compression tests on soil samples obtained from seabed ground
in deep sea by elasto-viscoplastic constitutive equation, Proc. The 7th
(2007) ISOPE. Ocean Mining (& Gas Hydrates). Symposium. at ISOPE-2007
Conference,. Corinthia Lisboa Hotel. Lisbon, July 1−6, 2007, Paper No.2007-MS-45,
2007.
Adachi, T., Oka, F., Kimoto, S. and Kobayashi, H., Progressive cut slope failure in transversely isotropic ground, Proc. Int. Workshop on Constitutive Modeling,-Development, Implementation, Evaluation and Application, The Hong Kong Polytechnic University, Hong Kong/Jan. 12-13, 2007, pp. 145-154, 2007.
Kimoto, S., Oka, F., Numerical study on one-dimensional consolidation with different thicknesses using an elasto-viscoplastic model, Proc. Int. Workshop on Constitutive Modeling,-Development, Implementation, Evaluation and Application, The Hong Kong Polytechnic University, Hong Kong/Jan. 12-13,2007, pp.168-177, 2007.
Karunawardena, A. ,Oka, F., Kimoto, S. and Kulatilaka, S.A.S., Prediction
of consolidation behavior of Sri Lankan peaty clay using elasto-viscoplastic
theory, Sri Lankan Geotechnical Society's First International Conference
on Soil & Rock Enginering, Aug. 5-11, 2007.
Feng, H., Kimoto, S., Oka, F., Kodaka, T. and Suzuki, H., Three dimensional multi-phase analysis of elasto-viscoplastic unsaturated soil, Proc. 19th KKCNN Symposium on Civil Engineering, Kyoto December 10-11, 2006, pp. 449-452, 2006.
Asiri, K., Oka, F. and Kimoto, S., Prediction of consolidation behavior of peaty clay using an elasto-viscoplastic theory, Proc. 19th KKCNN Symposium on Civil Engineering, Kyoto December 10-11, 2006, pp. 53-56, 2006.
Oka, F., Kimoto, S., Kim, Y.-S., Takada, N. and Higo, Y., A finite element analysis of the thermo-hydro-mechanically coupled problem of cohesive deposit using a thermo-elasto-viscoplastic model, Poromechanics -Biot- centennial, Proc. 3rd Biot Conference on Poromechanics, Y.N. Abousleiman, A.H-D. Cheng, F-J. Ulm editors, Balkema, pp. 383-388, 2005.
Kimoto, S. and Oka, F., Effect of initial strain rate on the consolidation of clay with different thickness, Proc. 18th KKCNN Symposium, National Taiwan University, Kaohsiung, Dec.18-21, 2005, pp.175-180, 2005.
Higo, Y., Oka, F., Kodaka, T. and Kimoto, S., A Three dimensional elasto-viscoplastic
strain localization analysis of water-saturated clay, Proc. 9th Int. Symp.
On Numerical Models in geomechanics, Ottawa, 25-27, August, 2004, G.N.
Pande and S. Pietruszczak eds., Taylor & Fransis Group, Balkema, pp.
107-114, 2004.
Siribumrungwong, B., Oka, F., Kodaka, T., Kimoto, S. and Higo, Y., An elasto-viscoplastic finite element study of the effect of microstructure change on bearing capacity of clay, Proc. of the International Symposium on Lowland Technology, September 1-3, 2004, pp. 177-182, 2004.
Oka, F., Higo, Y., Kim, Y.-S., Imura, Y. and Kimoto, S., Thermo-hydro-mechanicaly
coupled finite element analysis of cohesive soil using an elasto-viscoplastic
model, COMPUTATIONAL MECHANICS (Abstracts)WCCM VI in conjunction with APCOM’04,
Sept. 5-10, 2004, Beijing, China, Tsinghua University Press & Springer-Verlag,
pp. 266, 2004.
Kimoto, S. and Oka, F., Numerical study on the effects of strain rate and structure on the consolidation process of soft clay deposits, Proc. Int. Sump. On Engineering practice and Performance of soft deposits, Matsui, T. et al. editors, IS-Osaka, JGS, June 2nd-4th, pp. 105-108, 2004.
Siribumrungwong, B., Oka, F. and Kimoto, S., Numerical study of the effect of degradation on bearing capacity of clay using an elasto-viscoplastic model, Proc. of 7th KKCNN Symposium on Civil Engineering, Dec.13-15, 2004, Ayutthaya, Thailand, pp. 589-594, 2004.
Oka, F. and Kimoto, S., Numerical study of the effect of strain rate and microstructure on the consolidation of soft clay, Proc. of 7th KKCNN Symposium on Civil Engineering, Dec.13-15, 2004, Ayutthaya, Thailand, pp. 575-580, 2004.
Oka, F. and Kimoto, S., An elasto-viscoplastic model for clay considering destructuralization and prediction of compaction bands, Proc. of Int. Workshop on Prediction and Simulation Methods in Geomechanics, Athens, Oka, F., I. Vardoulakis, A. Murakami and T. Kodaka eds., JGS, pp. 65-68, 2003.
Oka, F., Kimoto, S., Kobayashi, H. and Adachi, T., An elasto-plastic constitutive model for soft sedimentary rock, EM03 Electronic Proc.16th ASCE Engineering Mechanics Conference, July 16-18, 2003, University of Washington , Seattle, 2003.
Oka, F., Higo, Y. and Kimoto, S., Instability and strain localization of water- saturated clay based on an elasto-viscoplastic model, Bifurcations and Instabilities in Geomechanics, Proc. Int. Workshop on Bifurcations and Instabilities in Geomechanics, IWBI 2002, June 2-5, 2002, Minneapolis MN, USA, J. Labuz, and A. Drescher, Balkema, pp. 233-246, 2003.
Oka, F., Higo, Y. and Kimoto, S., Instability and strain localization analysis of elasto-viscoplastic normally and overconsolidated clays, Proc.8th Int. Symp. on Numerical Models in Geomechanics, April 10-12 2002, Rome, Italy, pp. 185-190., 2002.
Adachi,T., Kimoto, S., Oka, F. and Kobayashi, H., A constitutive model for anisotropic behavior of soft sedimentary rock, Proc.8th Int. Symp. on Numerical Models in Geomechanics, April 10-12 2002, Rome, Italy, pp. 75-78, 2002.
Oka, F., Higo, Y. and Kimoto, S., Effect of dilatancy on strain localization of water saturated cohesive soil based on an elasto-viscoplastic model, Computational Mechanics, S.Valliappan and N.Khailili eds., Elsevier Proc. The first Asian-Pacific Congress on Computational mechanics, Sydney, Australia, 20-23 Nov., 2001, Vol.1, pp. 1147-1154, 2001.
岩井裕正, 小西陽太, 木元小百合, CO2ハイドレート含有砂供試体のひずみ速度急変非排水三軸圧縮試験,第7回メタンハイドレート総合シンポジウム,CSMH-7 2015, 2015年12月3 -4日, pp. 136-141, 2015.
赤木俊文, 木元小百合, メタンガス生産の影響を考慮したメタンハイドレート含有海底地盤の動的解析, 第7回メタンハイドレート総合シンポジウム,CSMH-7 2015, 2015年12月3 -4日, pp. 73-76, 2015.
赤木俊文, 木元小百合, メタンハイドレート産出過程に発生した地震に対する海底地盤の動的応答の数値解析,第20回計算工学講演会,つくば国際会議場,2015年6月8-10日, 計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, Vol. 20, Paper No.F-4-1, 2015.
Oka, F., Murakami, A., Uzuoka, R., Kimoto, S., Computer Methods and recent
Advances in Geomechanics, Proc. of the 14th Int. Conf. of Int. Association
for Computer Methods and Recent Advances in Geomechanics, Kyoto, Japan,
22-25 September 2014, CRC press, Taylor & Francis group, 2014.
Oka, F. and Kimoto, S., Computational modeling of multi-phase gematerials,CRC press, Taylor & Francis group, 2012.
Oka, F., Kimoto, S., Fushita, T. and Fujiwaki, M., Numerical simulation of he subsurface ground deformations due to Methane Hydrate Dissociation, Geotechnical Engineering, Korean Geotechnical Society, Vol. 23, No. 4, pp. 14-24, 2007.