List of English Technical Papers

(1) Kohgo, Y., Hayashida, Y. and Asano, I. (2007). A cyclic plasticity model for unsaturated soils，Proceedings of the 3rd Asian Conference on Unsaturated Soils, UNSAT-ASIA 2007, Nanjing China, Science Press, pp.-365-370.
(2) Kohgo, Y., Hayashida, Y., Fujii, M. and Kosuge, T. (2007). On analysis of the behavior of an embankment dam during the first reservoir filling by using an elastoplastic model for unsaturated geomaterials, ICOLD Symposium.
(3) Kohgo, Y., Hayashida, Y. and Asano, I. (2006). An elastoplastic model for unsaturated soils based on simplified extended subloading surface concept，Proc. of the 12th International Symposium on Plasticity, Plasticity 2006 ，Halifax, CDRom.
(4) Kohgo, Y., Takahashi, A., Asano, I. and Suzuki, T., FEM consolidation analysis of centrifuge test for rockfill dam model during first reservoir filling, Unsaturated Soils 2006, Geotechnical Special Publication No. 147, ASCE, Vol. 2 pp. 2312-2323.
(5) Hori, T., Mohri, Y., Kohgo, Y. (2006). Model test and deformation analysis of a sandy loose embankment dam during seepage, Unsaturated Soils 2006, Geotechnical Special Publication No. 147, ASCE, Vol. 2, pp. 2359-2370.
(6) Kohgo, Y., Asano, I., Hayashida, Y., Takahashi, A. and Towmezuka, R. (2006). Performance of wireless pore water pressure transducers installed within embankment dams，The 22nd Congress of ICOLD，Barcelona, Q. 86 -R.44, pp. 663-681.
(7) Tanaka, T., Mohri, Y., Masukawa, S. and Kohgo, Y. (2006). Dynamic response analysis of embankment dam using elasto-plastic and viscoplastic constitutive models, Proc. New achievements of dam construction and management, Asia Pacific Group of ICOLD, Barcelona, Spain, CDRom.
(8) Kohgo, Y., Hayashida, Y. and Asano, I. (2005). Analyses of rock fill dam by using a general elastoplastic model with two suction effects, Int. Conf. on Computational and Experimental Eng. and Sciences, ICCES, Paper No. ICCES0520050715307.
(9) Kohgo, Y., Asano, I. And Hayashida, Y. (2005). An elastoplastic model for unsaturated geo-materials, Proc. International Conference on Problematic Soils, Eastern Mediterranean Univ. Press, Cyprus, Vol. 1, pp.147-155.
(10) Kohgo, Y., Asano, I. and Hayashida, Y. (2004). Affection of water contents to mechanical properties of weak rock-fills, Proc. 15th South-East Asian Geotechnical Conf., Bangkok, pp.15-20.
(11) Kohgo, Y., Asano, I., Hayashida, Y., Takahashi, A. and Towmezuka, R. (2004). On wireless pore water transducer for fill dams, Proc. 4th Int. Conf. Dam Engineering, Nanjing, pp.441-450.
(12) Masukawa, S., Yasunaka, M. and Kohgo, Y. (2004). Dynamic deformations and failures on shaking table tests for dam models，Proc. 13th World Conference on Earthquake Engineering，Paper No.2359.
(13) Suzuki, T., Hoshino, Y., Uchida, Y., Takahashi, A. and Kohgo, Y. (2004). Saturation Collapse Behavior of Rock Materials, ICOLD Symposium, Seoul.
(14) Kohgo, Y., Asano, I. and Hayashida, Y. (2003). A constitutive model for unsaturated weak rockfills, Proc. of Int. Conf. on Problematic Soils, Nottingham, pp.349-356.
(15) Masukawa, S., Yasunaka, M., Tanaka, T. and Kohgo, Y. (2003). Dynamic progressive failure of earthfill dam models due to strong motions and their analyses，The 21st ICOLD，Montreal, pp.613-629.
(16) Kohgo, Y., Asano, I. and Hayashida, Y. (2003) Modeling of mechanical properties of rockfills due to wetting, Proceedings of the 2nd Asian Conference on Unsaturated Soils, UNSAT-ASIA 2003, Osaka, pp.59-64.
(17) Hayashida, Y., Kohgo, Y. and Asano, I. (2003). A hysteresis model with the continuity of tangential slopes of soil water retention curves, Proceedings of the 2nd Asian Conference on Unsaturated Soils, UNSAT-ASIA 2003, Osaka, pp.413-418.
(18) Kohgo, Y. (2003). Review of constitutive models for unsaturated soils and initial-boundary value analyses, Proceedings of the 2nd Asian Conference on Unsaturated Soils, UNSAT-ASIA 2003, Osaka, pp.21-40.
(19) Kohgo, Y., Asano, I. and Hayashida, Y. (2002). A numerical analysis method for static behavior of fill-type dams, 3rd Int. Conf. Dam Engineering, Singapore, pp.151-158.
(20) Tanaka, T., Saito, Y., Kohgo, Y. and Harada, D. (2002). Dynamic progressive failure of earth dams by FEM and model experiment, 3rd Int. Conf. Dam Engineering, Singapore, pp.323-330.
(21) Kohgo, Y., Asano, I. and Hayashida, Y. (2002). Mechanical behavior of rock materials due to wetting and their modeling, Unsat 2002 Vol.1, Recife, Brazil, pp.167-172.
(22) Kohgo, Y. (2002). Elastoplastic models for unsaturated soils with two suction effects and unsaturated soil behavior, Unsat 2002 Vol. 3, Recife, Brazil, pp.905-915.
(23) Kohgo, Y., Asano, I. and Hayashida, Y. (2001). An elastoplastic model for unsaturated soils based on cyclic plasticity, TC34 of ISSMGE, International Workshop on Deformation of Earth Materials, Sendai, pp.129-140.
(24) Kohgo, Y., Asano, I. and Tagashira, H. (2001). Modeling of state surfaces of unsaturated soils, Clay Science for Engineering IS Shizuoka, Balkema, pp. 467-474.
(25) Kohgo, Y., Asano, I. and Tagashira, H. (2000). Application of FE consolidation analysis method to fill-type dams, Proc. Asian conference on unsaturated soils, UNSAT-ASIA 2000, Balkema, pp. 189-194.
(26) Kohgo, Y., Tamrakar, S. B. and Tang, H. G. (2000). The saturated and unsaturated mechanical properties of typical soils distributed in Northeast Thailand, JIRCAS Journal No.8, pp. 75-91.
(27) Kohgo, Y., Horpibulsuk, S. and Tamrakar, S. B. (1999). Simulation of volume change behavior of Yellow soil sampled from Khon Kaen city in Northeast Thailand, Proc. 11th Asian Regional Conf. on Soil Mech. and Foundation Eng., ISSMFE, pp.141-144.
(28) Kohgo, Y. and Horpibulsuk, S. (1999). Deformation analysis of a fill-type dam by using FEM consolidation analysis method, Civil and Enviromental Engineering Conference - New Frontiers and Challenges, AIT, pp.I~77-86.
(29) Kohgo, Y. (1998). Simulations of triaxial compression tests for unsaturated soils by using an elastoplastic model, Problematic Soils, Proc. Int. Symposium on Problematic Soils, IS-TOHOKU, Yanagisawa, E., Moroto, N. and Mitachi, T.edis, A. A. Balkema, Vol. 1, pp 585-588.
(30) Kohgo, Y., Tamrakar, S. B. and Tang, H. G. (1997). Deformation and shear behavior of unsaturated soils sampled from Khon Kaen city, Proc. of 4th National Convention on Civil Engineering, pp. 301-308.
(31) Kohgo, Y. (1997). Method of Analysis of Saturation Collapse Behavior, JIRCAS J. No.4, pp. 1-28 ,1997.3.
(32) Kohgo, Y. and Moriyama, H. (1995). On elastoplastic model for unsaturated soils, Proc. 10th Asian Regional Conf. on Soil Mech. and Foundation Eng., ISSMFE, pp. 135-138.
(33) Kohgo, Y. (1995). A consolidation analysis method for unsaturated soils coupled with an elastoplastic model, Proc. 1st Int. Conf. on Unsaturated Soils Vol. 2, pp.1085-1093.
(34) Kohgo, Y., Nakano, M. and Miyazaki, T. (1995). Closure - Verification of the generalized elastoplastic model for unsaturated soil, Soils and Foundations Vol.35 No.1, pp.173-174.
(35) Kohgo, Y., Nakano, M. and Miyazaki, T. (1993). Theoretical aspects of constitutive modelling for unsaturated soils, Soils and Foundations Vol.33 No.4, pp.49-63.
(36) Kohgo, Y., Nakano, M. and Miyazaki, T. (1993). Verification of the generalized elastoplastic model for unsaturated soils, Soils and Foundations Vol.33 No.4, pp.64-73.
(37) Kohgo, Y., Nakano, M. and Miyazaki, T. (1992). Soil Collapse Prediction using an Elastoplastic Model, Proc. 7th Int. Conf. on Expansive Soils Vol.1, pp.55-60.
(38) Kohgo, Y. (1992). Deformation analysis of fill-type dams during reservoir filling, Proc. 4th Int. Symposium on Numer. Models in Geomech. Vol. 2, pp.777-787.
(39) Kohgo, Y., Nakano, M. and Miyazaki, T. (1991). Elastoplastic Constitutive Modelling for Unsaturated Soils, Proc. 7th Int. Conf. Computer Meth. Adv. Geomech. Vol.1, pp.631-636.
(40) Kohgo, Y. and Yamashita, T. (1988). Finite Element Analysis of Fill Type Dams- Stability during Construction by using the Effective Stress Concept, Proc. the 6th Int. Conf. on Numer. Methods in Geomech. Vol.2, pp.1315-1322.