1. 4) Matsushima, T., Tsuchiyama, A., Uesugi, K., Nakano, T., Toda, K., Kawamura, Y., Sato, K. : Visualization of 3-D ped structure of undisturbed clay using high resolution X-ray CT at SPring-8, SPring-8 user report, 2004A0163-ND2b-np, 2004.
2. 5) Anandarajah, A. : Numerical Simulation of One-Dimensional Behavior of Kaolinite, Geotechnique, 50(5), pp.509-519, 2000.
3. 6) Yao, M., and Anandarajah, A.: Three-Dimensional Discrete Element Method of Analysis of Clays., J. Engineering Mechanics, ASCE, 129(6), pp.585-596, 2003.
4. 7) H. Nishikawa, M. Fujita, S. Maenosono, Y. Yamaguchi and T. Okudo: Effects of Frictional Force on the Formation of Colloidal Particle Monolayer During Drying-Study Using Discrete Element Method-, KONA, 24, pp.192-200, 2006.
5. 8) Suzuki, A., & Matsushima, T. : Meso-scale structural characteristics of clay deposit studied by 2D Discrete Element Method. Proc. IS-Cambridge: Geomechanics from Micro to Macro, pp.26-33, 2014.