1. 1) Cundall, P. A: A computer model for simulating progressive, large-scale movements in blocky rock system, Proc. Int. Sympo. ISRM, Nancy, Vol. 2, pp. 129-136, 1971.
2. 2) Shi, G. H. and Goodman, R. E.: Discontinuous deformation analysis, Proc. 25th U. S. Symposium on Rock Mechanics, pp. 269-277, 1984.
3. 3) Aydan,., Ichikawa, Y. and Kawamoto, T.: Numerical modelling of discontinuities and interface in rock mass, 第4回計算力学シンポジウム報文集, 日本科学技術連盟, pp. 254-261, 1990.
4. 4) 八嶋厚, 鷲見武富, 岡二三生, 足立紀尚: 岩盤不連続面に対するひずみ軟化型弾塑性モデル, 土木学会論文集, No. 596/III-43, pp. 111-121, 1998.
5. 5) Hoek, E. and Bray, J. W.: Rock Slope Engineering, Revised 3rd edition, The Institution of Mining and Metallurgy, pp. 341-351, 1981.