portrait of Yasuaki ICHIKAWA

Yasuaki ICHIKAWA

Professor

D.Eng., M.Sc.

 

Specialty

Computational mechanics, continuum mechanics, geoenvironmental mechanics

Current Research Fields

1) Unified molecular simulation/homogenization analysis for micro-inhomogeneous materials involving heterogeneous characteristics.
2) Coupled thermo-hydro-mechano-chemical behavior of geometerials.
5) Inverse analysis for identifying material parameters.

Publications

Books

1.      Kawamura, K., Ichikawa, Y. (2003): gSeepage and deformation of claysh in The Role of Water in Earthquake Generation, ed. J. Kasahara, M. Toriumi, K. Kawamura, Univ. Tokyo Pr., 106-134 (in Japanese).

2.      Ichikawa, Y. (2002): gEvaluation of rock mass discontinuities and mechanics of discontinuous rock massff, Chap. 6 of Rock Mechanics, ed. Soc. Materials Sci., Japan., Giho-do, 103-120 (in Japanese).

3.      Ichikawa, Y., ed. (1994): Proc. Int. Workshop Inverse Analysis in Geomechanics '94, private publication.

4.      Ichikawa, Y.(1990): Introduction of Finite Element Methods in Geomechanics, Nikka-giren Pub. (in Japanese).

5.      Kawamoto, T., Ichikawa, Y., ed. (1985): Numerical Methods in Geomechanics Nagoya 1985 (Proc. 5th Int. Conf. Numerical Methods in Geomechanics), Balkema Pub.

 

Journal Papers

1.      Ichikawa, Y., Choi, J.-U., Kawamura, K., Suzuki, S. (2008): gTransport phenomena in clays: Nano-scale properties and macro-scale behaviorsh, J. Clay Sci. Soc. Japan, 47(4), 234-239 (in Japanese).

2.      Choi, J.-H., Anwar, A.H.M.F., Kawamura, K., Ichikawa, Y. (2008): gTransport phenomena in kaolinite clay: Molecular simulation, homogenization analysish, Int. J. Numer. Analy. Meth. Geomech., DOI: 10.1002/nag.744.

3.      Choi, J.-H., Anwar, A.H.M.F., Ichikawa, Y. (2007): gObservation of time-dependent local deformation of crystalline rocks using a confocal laser scanning microscopeh, Int. J. Rock Mech. Min. Sci., doi:10.1016/j.ijrmms.2007.07.004.

4.      Ichikawa, Y., Choi, J.-H.,, Kim, B.-C. (2007): gCoupled diffusion and seepage problem in porous mediah, J. Soc. Material Sci., Japan, 56(9), 851-857 (in Japanese).

5.      Liu, S.-X., Anwar, A.H.M.F., Kim, B.C., Ichikawa, Y. (2006): gMicrocrack generation and propagation in granite during stress relaxation under water-saturated tri-axial conditionh, Proc. JSCE, C62(3), 623-630.

6.      Fujii, N., Ichikawa, Y. (2006): gHomogenization analysis of surface diffusion in compacted bentoniteh, Proc. Applied Mech., JSCE, Vol.9 (in Japanese).

7.      Liu, S.-X., Anwar, A.H.M.F., Kim, B.C., Ichikawa, Y. (2006): gObservation of microcracks in granite using a confocal laser scanning microscopeh, Int. J. Rock Mech. Mining Sci., 43, 1293-1305.

8.      Prayongphan, S., Ichikawa, Y., Kawamura, K., Suzuki, S. Chae, B.G. (2006): gDiffusion with micro-sorption in bentonite: Evaluation by molecular dynamics and homogenization analysish, Comp. Mech., 37, 369-380.

9.      Suzuki, S., Prayongphan, S., Ichikawa, Y., Chae, B.G. (2005): gSwelling of bentonite in contact with NaCl solutions by using the confocal laser scanning microscopeh, Appl. Clay Sci., 29, 89-98.

10.  Ichikawa, Y., Prayongphan, S., Kawamura, K., Chae, B.G., Kitayama, K. (2005): gWater flow and diffusion problem in bentonite: Molecular simulation and homogenization analysish, in Coupled Thermo-Hydro-Mechanical-Chemical Processes in Geo-systems, ed. O. Stephansson et al., Elsevier, 457-464.

11.  Nakaoka, K., Yamamoto, S., Hasegawa, H., Kawamura, H., Kitayama, K., Saito, N., Ichikawa, Y., Kawamura, K., Nakano, M. (2004): gLong-term consolidation mechanisms based on micro/macro behavior and in situ XRD measurement of basal spacing of clay mineralsh, Appl. Clay Sci., 26, 521-533.

12.  Ichikawa, Y., Kawamura, K., Fujii, N., Kitayama, K. (2004): gMicrostructure and micro/macro-- diffusion behavior of tritium in bentoniteh, Appl. Clay Sci., 26, 75-90.

13.  Chae, B.G., Ichikawa, Y., Jeong, G.C., Kim, B.C. (2004): gRoughness measurement of rock discontinuities using a confocal laser scanning microscope and the Fourier spectral analysish, Eng. Geology, 72, 181-199.

14.  Ichikawa, Y., Kawamura, K., Theramast, N., Kitayama, K. (2004): "Secondary and tertial consolidation of bentonite clay: consolidation test, molecular dynamics simulation and multiscale homogenization analysis", Mech. Materials, 36, 487-513.

15.  Nakano, M., Kawamura, K., Ichikawa, Y. (2003): gLocal structural information of Cs in smectite hydrates by means of an EXAFS study and molecular dynamics simulationsh, Appl. Clay Sci., 23, 15-23.

16.  Chae, B.G., Ichikawa, Y., Jeong, G.C., Seo, Y.S. (2003): gAperture of granite fracture and effects for fluid flowh, Mater. Sci. Research Int., 9(4), 270-277.

17.  Suzuki, S., Kawamura, K., Nakajima, Y., Ichikawa, Y. (2003): gThe study of correlation between spectroscopic and dynamic prpperties of pore water in the clay-water systemh, Shigen-to-Sozai, 119, 581-586 (in Japanese).

18.  Wang, J.G., Ichikawa, Y. (2003):  gA constitutive model for rock interfaces and jointh, Int. J. Rock Mech. & Min. Sci., 40, 41-53.

19.  Fujii, N., Ichikawa, Y., Kawamura, K., Suzuki, S., Kitayama, K. (2003): gMicro-structure of bentonite clay and diffusion coefficient given by multiscale homogenization analysish, Mater. Sci. Res. Int., 9(2), 117-124.

20.  Kitayama, K., Fujii, F., Suzuki, S., Shibata, M., Kawamura, K., Ichikawa, Y. (2003): gMicro/macro treatment in diffusion problem: From clay to mudstoneh, J. Soc. Mate., Sci., Japan, 52(5), 458-465 (in Japanese).

21.  Wang, J.G., Leung, C.F., Ichikawa, Y. (2002):  gA simplified homogenization method for mixed soilsh, Computers & Geotechnics, 29, 477-500.

22.  Seo, Y.-S., Jeong, G.-C., Kim, J.-S., Ichikawa, Y. (2002): gMicroscopic observation and contact stress analysis of granite under compressionh, Engineering Geology, 63, 259-275.

23.  Ichikawa, Y., Kawamura, K., Fujii, N., Theramast, N. (2002): gMolecular dynamics and multiscale homogenization analysis of seepage/diffusion problem in bentonite clayh, Int. J. Numer. Meth. Engng., 55, 1-40.

24.  Suzuki, S., Kawamura, K., Ichikawa, Y., Fujii, N., Kitayama, K. (2002): gMass transport simulations for the high-level radioactive waste disposal: On the basis of molecular dynamics simulationsh, J. Japan Soc. Simulation Tech., 21(1), 9-14 (in Japanese).

25.  Ichikawa, Y. (2002): gDouble porosity theory in geomechanics and multiscale homogenization analysish, J. Soc. Mate., Sci., Japan, 51(2), 130-134 (in Japanese).

26.  Ichikawa, Y., Kawamura, K. (2002): gMicro/macro-behavior of water flow and diffusion in clay: Multiscale homogenization analysish, Bull. Earthquake Research Institute, Univ. Tokyo, 76, 425-441.

27.  Kawamura, K., Ichikawa, Y. (2001): gPhysical properties of clay minerals and water: -by means of molecular dynamics simulations-h, Bull. Earthquake Research Institute, Univ. Tokyo, 76, 311-321.

28.  Suzuki, S., Fujishima, A., Ueno, K, Ichikawa, Y., Kawamura, K., Fujii, F., Shibata, M., Sato, H., Kitayama, K. (2001): gMicrostructural modeling of compacted sodium-bentonite and application of unified molecular dynamics/homogenization analysis for diffusion processh, J. Clay Sci. Soc. Japan, 41(2), 43-57 (in Japanese).

29.  Ichikawa, Y., Kawamura, K., Uesugi, K., Seo, Y.-S., Fujii, N. (2001): gMicro- and macrobehavior of granitic rock: Observations and viscoelastic homogenization analysish, Computer Methods in Applied Mech. Eng., 191, 47-72.

30.  Ichikawa, Y., Kawamura, K., Nakano, M., Kitayama, K., Seiki, T., Theramast, N. (2001): gSeepage and consolidation of bentonite saturated with pure- or salt-water by the method of unified molecular dynamics and homogenization analysish, Engineering Geology, 60, 127-138.

31.  Dziadzuiszko, P., Ichikawa, Y., Sikora, Z (2000): gInverse analysis procedure for identifying hardening function in elasto-plastic problem by two-scale finite element schemeh, Inverse Problems in Engineering, 8, 391-411.

32.  Dziadzuiszko, P., Ichikawa, Y., Sikora, Z. (2000): gInverse analysis procedure for identifying material parameters of hypoelastic constitutive model for soilsh, Mater. Sci. Research Int., 6(3), 212-220.

33.  Seo, Y.-S., Fujii, N., Seiki, T., Ichikawa, Y. (2000): gViscoelastic behavior of granite and the homogenization analysish, Mater. Sci. Research Int., 6(3), 203-211.

34.  Seo, Y.-S., Lee, J.-K., Ichikawa, Y., Kawamura, K., Jeong, G.-C., Kim, G.-W. (2000): gA study on anisotropic characteristics of axial strengths in -quartz by using molecular dynamics simulation and uniaxial compression testh, J. Korean Soc. Rock Mech., 10, 70-79 (in Korean).

35.  Fujii, N., Ichikawa, Y.., Seiki, T. (2000):  gA diffusion problem in bentonite clay by using homogenization methodh, Proc. 30th Rock Mech. Symp., JSCE, 8-14 (in Japanese).

36.  Seo, Y.-S., Seiki, T., and  Ichikawa, Y. (1999):  gCrack generation and propagation during stress relaxation of crystalline rock under water-saturated uniaxial conditionh, J. Soc. Mat. Sci., Japan, 48(11), 1255-1262 (in Japanese).

37.  Swoboda, G., Ichikawa, Y., Qinxi Dong, Mostafa Zaki (1999): gBack analysis of large geotechnical modelh, Int. J. Numer. Anal. Meth. Geomech., 23, 1455-1472.

38.  Kawamura, K., Ichikawa, Y., Nakano, M., Kitayama, K., Kawamura, H. (1999): gSwelling properties of smectite up to 90: In situ X-ray diffraction experiments and molecular dynamics simulationh, Engineering Geology, 54, 75-79.

39.  Ichikawa, Y., Kawamura, K., Nakano, M., Kitayama, K., Kawamura, H. (1999): gUnified molecular dynamics and homogenization analysis for bentonite behavior: Current results and future possibilitiesh, Engineering Geology, 54, 21-31.

40.  Seo, Y.-S., Ichikawa, Y., Kawamura, K. (1999): gStress-strain response of rock-forming minerals by molecular dynamics simulationh, Mater. Sci. Research Int., 5(1), pp.13-20.

41.  Kawamura, K., Ichikawa, Y., Nakano, M. (1999):  gMolecular simulation of clay-hydrate – For estimating performance of engineering barrier system of high-level radioactive waste managementh, Monthly Earth, 21(2), 97-101 (in Japanese).

42.  Ichikawa, Y., Kawamura, K., Nakano, M., Kitayama, K. (1999): gUnified molecular simulation/homogenization method – An analysis of bentonite clay in high-level radioactive waste managementh, J.Atomic Energy Soc. Japan, 41(2), 88-97 (in Japanese).

43.  Ohkami, T., Ichikawa, Y. (1997): gA parameter identification procedure for viscoelastic materialsh, Comp. Geomech., 21(4), 255-275.

44.  Ichikawa, Y., Wang, J.G., Jeong, G.-C. (1996): gMicro/macro properties of geomaterials: A homogenization method for viscoelastic problemh, Int. J. Structural Eng. and Mech., 4(6), 631-644.

45.  Wu, X., Ichikawa, Y. (1995): gIdentification of damage parameters for jointed rock mass based on the kalman filter finite element methodh, Proc. JSCE, 523/III-32, 1-8 (in Japanese).

46.  Seiki, T., Ichikawa, Y. (1995): gMixture theory for coupled heat, stress and seepage behaviour including convective effect and its applications to saturated porous rockh, Proc. JSCE, 517/III-31, 1-11 (in Japanese).

47.  Wang, J.-G., Tsuji, K., Ichikawa, Y. (1995): gEvolution of microstress and macro-mechanical behaviors of nonlinear geomaterialsh, Proc. 38th Japan Cong. Materials Research, Soc. Mat. Sci. Japan, 229-236.

48.  Wu, X., Ichikawa, Y., Kyoya, T., Kawamoto, T. (1995): gA damage mechanics approach for jointed rock mass and its application to cavern excavation problemh, Proc. JSCE, 505/III-29, 115-122 (in Japanese).

49.  Seiki, T., Jeong, G.-C., Aydan, O., Ichikawa, Y. (1994): gDeformation characteristics of kinking in rocksh, J. SMSJ, 43(494), 1451-1456 (in Japanese).

50.  Jeong, G.-C., Ichikawa, Y. (1994): gAn experimental study on damage propagation of intact graniteh, J. SMSJ, 43(486), 317-323 (in Japanese).

51.  Jeong, G.C., Ichikawa, Y. (1994): gMicro-damage propagation in marble under triaxial state of stressh, Int. J. Min. Mat. Proc. Inst. Japan, 110, 283-288.

52.  Naruse, F., Ichikawa, Y., Mizutani, H., Kaneda, T. (1993): gBiomechanical study on mid-third facial fracture -Stress analysis using a finite element method (FEM)-h, Japanese J. Oral Biology, 35(4), 297-311.

53.  Tsuchiyama,S., Ohkami, T., Ichikawa, Y. (1993): gIdentification of damage tensor for jointed rock mass and deformation prediction during excavation of underground cavernh, Proc. JSCE, 475/III-24, 49-58 (in Japanese).

54.  Ichikawa, Y., and Ohkami, T. (1992): gA parameter identification procedure as a dual boundary control problem for linear elastic materialsh, Soils and Foundations, 32(2), 35-44.

55.  Han, S., Ichikawa, Y., Kawamoto, T. (1991): gAn analysis method for elastic waves propagation in material involving cracksh, Soil Dynamics and Earthquake Eng., 10(6), 313-322.

56.  Ohkami, T., Ichikawa, Y., Kawamoto, T. (1991): gA boundary element method for identifying orthotropic material parametersh, Int. J. Numer. Anal. Meth. Geomech., 15, 609-625.

57.  Sezaki, M., Aydan, O., Ichikawa, Y., Kawamoto, T. (1990): gProperties for initial design of tunnels by natm using rock mass data-base systemh, Proc. JSCE, 421/VI-13, 125-133 (in Japanese).

58.  Ichikawa, Y., Ito, T., Mroz, Z. (1990): gA strain localization condition applying multi- response theoryh, Ingenieur-Archiv, 60, 542-552.

59.  Ichikawa, Y., Aydan, O., Kyoya, T., Osaka, H., Kawamoto, T. (1990): gAn expert system for tunnel designh, Microcomputers in Civil Eng., 5, 3-18.

60.  Shimizu, Y., Aydan, O., Tsuchiyama, S., Ichikawa, Y. (1990): gAn integrated method for slope stability in discontinuous rock massh, Proc. JSCE, 415/III-12, 109-118 (in Japanese).

61.  Sezaki, M., Kibe, T., Ichikawa, Y., Kawamoto, T. (1989): gAn experimental study on the mechanical properties of shotcreteh, J. SMSJ, 38(434), 106-110 (in Japanese).

62.  Aydan, O., Shimizu, Y., and Ichikawa, Y. (1989): gThe effective failure modes and stability of slopes in rock mass with two discontinuity setsh, Rock Mechanics and Rock Eng., 22, 163-188.

63.  Han, S., Ichikawa, Y., Kawamoto, T. (1989): gA numerical evaluation method of waves in rock mass with cracksh, Proc. JSCE, 412/III-12, 173-182.

64.  Han, S., Kyoya, T., Ichikawa, Y., Kawamoto, T. (1988): gA study on the dynamic behaviours of discontinuous rock mass with damage mechanics theoryh, Proc. JSCE, 400/III-10, 65-74 (in Japanese).

65.  Shimizu, Y., Aydan, O., Ichikawa, Y., Kawamoto, T. (1988): gDynamic stability and failure of slopes in discontinuous rock massh, Proc. JSCE, 400/III-10, 189-198 (in Japanese).

66.  Kawamoto, T., Ichikawa, Y. Kyoya, T. (1988): gDeformation and fracturing behaviour of discontinuous rock mass and damage mechanics theoryh, Int. J. Numer. Anal. Meth. Geomech., 12, 1-30.

67.  Aydan, O., Kawamoto, T., Ichikawa, Y., Ersen, A. (1987): gThe reinforcement of pillars with a discontinuity or discontinuity set by rockboltsh, Medencilik, 16(2), 19-26 (in Turkish).

68.  Yamabe, T., Obara, Y., Ichikawa, Y., Kawamoto, T. (1987): gElastoplastic analysis of geomaterials with induced anisotropyh, Proc. JSCE, 388/III-8, 95-102 (in Japanese).

69.  Kyoya, T., Ichikawa, Y., Kawamoto, T. (1987): gA damage mechanics approach to evaluation of mechanical properties of rock massh, Tsuchi-to-Kiso (JSSMFE: Japanese Society of Soil Mechanics and Foundation Engineering), 35(3), 23-28 (in Japanese).

70.  Aydan, O., Kawamoto, T., Ichikawa, Y., Ersen, A. (1985): gA new analytic solution for stresses, strains and displacements in/along rockboltsh, Medencilik, 14(3), 27-36 (in Turkish).

71.  Mitsui, Y., Ichikawa, Y., Obara, Y., Kawamoto, T. (1985): gA coupling scheme for boundary and finite elements using a joint elementh, Int. J. Numer. Anal. Meth. Geomech., 9, 161-172.

72.  Kyoya, T., Ichikawa, Y., Kawamoto, T. (1985): gAn application of damage tensor for estimating mechanical properties of rock massh, Proc. JSCE, 358/III-3, 27-35 (in Japanese).

73.  Takeuchi, S., Oka, T., Ichikawa, Y., Kawamoto, T. (1985): gExperimental and numerical studies on fracture of human mandible: 2. Investigation on the three-dimensional finite element model and fracture of human mandibleh, Japan J. Oral. Maxillofac. Surg., 31(2), 248-263 (in Japanese).

74.  Takeuchi, S., Oka, T., Ichikawa, Y., Kawamoto, T. (1985): gExperimental and numerical studies on fracture of human mandible: 1. On failure properties of human boneh, Japan J. Oral. Maxillofac. Surg., 31(2), 240-247 (in Japanese).

75.  Akagi, T., Ichikawa, Y., Kuroda, H., Kawamoto, T. (1984): gA non-linear rheological analysis of deeply located tunnelsh, Int. J. Numer. Anal. Meth. Geomech., 8, 457-471.

76.  Ichikawa, Y., Kawamoto, T. (1983): gA continuum theory of coupled seepage and motion problem in saturated porous mediah, Soils and Found., 23(2), 165-167.

77.  Kawamoto, T., Obara, Y., Ichikawa, Y. (1983): gA base friction apparatus and mechanical properties of a model material -fundamental study on mechanical properties of rock structures with discontinuities (1st report)h, J. MMIJ (Mining and Metallurgical Institute of Japan), 99(1139), 1-6 (in Japanese).

78.  Kawamoto, T., Ichikawa, Y., Togashi, Y. (1982): gEffects of nonlinearity of soil foundations in dynamic analysish, Soils and Found., 22(4), 152-160 (in Japanese).

79.  Kikuchi, N., Ichikawa, Y. (1979): gStefan problems by variational inequalitiesh, Proc. JSCE (Japan Society of Civil Engineers), 289, 17-29 (in Japanese).

80.  Kikuchi, N., Ichikawa, Y. (1979): gNumerical methods for a two-phase Stefan problem by variational inequalitiesh, Int. J. Numer. Meth. Engng, 14, 1221-1239.

81.  Ichikawa, Y., Kikuchi, N. (1979): gA one phase multi-dimensional Stefan problem by the method of variational inequalitiesh, Int. J. Numer. Meth. Engng, 14, 1197-1220.

82.  Ichikawa, Y. (1974): gAn application of finite element method for foundation structuresh, Kyoryo, 10(10), 44-47 (in Japanese).

 

Introductory and Survey Papers

1.       Ichikawa, Y. (1996): gMicro/macro properties of materials: II. A homogenization theory for visco- elastic materialh, Suiyokai-Shi, Kyoto Univ., 22(6), 344-353 (in Japanese).

2.       Ichikawa, Y. (1995): gMicro/macro properties of materials: I. Microscopic observation of rockh, Suiyokai-Shi, Kyoto Univ., 22(4), 193-201 (in Japanese).

3.       Ichikawa, Y. (1989): gNumerical analyses of heat transport in soilh, Tsuchi-to-Kiso (JSSMFE), 37(4), 81 -84. (in Japanese).

4.       Ichikawa, Y. (1989): gConsolidation analysis of soft groundh, Tsuchi-to-Kiso (JSSMFE), 37(4), 81-84 (in Japanese).

5.       Ichikawa, Y., Kamemura, K. (1988): gStress analysis of ground structures (2)h, Tsuchi-to-Kiso (JSSMFE), 36(12), 77-85 (in Japanese).

6.      Ichikawa, Y., Kamemura, K. (1988): gStress analysis of ground structures (1)h, Tsuchi-to-Kiso (JSSMFE), 36(9), 81-88 (in Japanese).

7.      Ichikawa, Y., Asaoka, A. (1988): gFinite element approximation and boundary value problems: For seepage problem (5)h, Tsuchi-to-Kiso (JSSMFE), 36(8), 77-82 (in Japanese).

8.      Ichikawa, Y., Asaoka, A. (1988): gFinite element approximation and boundary value problems: For seepage problem (4)h, Tsuchi-to-Kiso (JSSMFE), 36(7), 77-83 (in Japanese).

9.      Ichikawa, Y., and Asaoka, A. (1988): gFinite element approximation and boundary value problems: For seepage problem (3)h, Tsuchi-to-Kiso (JSSMFE), 36(6), 87-95 (in Japanese).

10.  Ichikawa, Y., Asaoka, A. (1988): gFinite element approximation and boundary value problems: For seepage problem (2)h, Tsuchi-to-Kiso (JSSMFE), 36(5), 85-93 (in Japanese).

11.  Ichikawa, Y., Asaoka, A. (1988): gFinite element approximation and boundary value problems: For seepage problem (1)h, Tsuchi-to-Kiso (JSSMFE), 36(4), 73-78 (in Japanese).

12.  Kawamoto, T., Ichikawa, Y. (1982): gMechanics of soft rocks and numerical analysesh, J. SMSJ (Society of Materials Science Japan), 31(347), 770-779 (in Japanese).

Awards

1.      Achievement Award of Int. Society of Medical Use of Shape Memory Alloys

2.      Award of Important Paper of Int. Association for Computational Methods and Advances in Geomechanics for the paper "Deformation and fracturing behavior of discontinuous rock mass and damage mechanics", 1994.05D

3.      Achievement Award of Reprocessing and Valuable Nuclides' Recycling Division of the Atomic Energy Society of Japan

Joint Researches Awarded

International

1994-1996: Development of a new technology for optimal design of concrete dam by controlling thermal stress, collaborated with Prof. G.-T. Liu (Department of Hydraulic and Hydropower Engineering, Tsinghua University, China), awarded by Ministry of Foreign Affairs, Japan.

1994-1996: Integrated system of back analysis for geotechnical survey, collaborated with Prof. G. Swoboda (University of Innsbruck, Austria), Prof. G. Gioda (Technical University of Milan, Italy), Prof. A. Cividini (Technical University of Milan, Italy), awarded by Japan Society for the Promotion of Science (JSPS).

1996-2003: Expert system within constitutive theory for soils with parameter calibration as a nonlinear back analysis problem, collaborated with Prof. Z. Sikola (Technical University of Gdansk, Poland), awarded by Polish Government.

2003-2007: Microscale-based THMC characterization of Opalinus Clay, collaborated with Dr. P. Blumling (National Cooperative for the Disposal of Radioactive Waste, Switzerland; Nagra), awarded by Nagra and Obayashi Co. (Japan).

 

Domestic

Thermal stress analysis of Nagashima Dam, awarded by Ministry of Construction, Government of Japan.

1994-2003: Microscopic study of rock for estimating long-term behavior, awarded by Japan Nuclear Cycle Development Institute (JNC).

1996-2004: Estimating long-term behavior of bentonite buffer, collaborated with Prof. M. Nakano (Department of Agricultural Engineering, University of Tokyo), Prof. K. Kawamura (Department of Earth and Planetary Science, Tokyo Institute of Technology) and Obayashi Co., awarded by Federation of Electric Power Companies of Japan.

1999-2001: Advanced study of transport analysis in bentonite, collaborated with Prof. K. Kawamura (Department of Earth and Planetary Science, Tokyo Institute of Technology), awarded by Japan Nuclear Cycle Development Institute (JNC).

2004-  :      Theoretical study of rock for estimating long-term behavior, awarded by Japan Atomic Energy Agency (JAEA).

2006-  :      Elaborated estimation for material transport in the near field, collaborated with Prof. T. Sato (Division of Solid Waste, Resources and Geoenviromental Engineering, Hokkaido University), Prof. K. Kawamura (Department of Earth and Planetary Science, Tokyo Institute of Technology), awarded by Federation of Electric Power Companies of Japan.

E-mail

yiyi08@cc.okayama-u.ac.jp