1Ching S. Chang and Sao - Jeng Chao. Discrete element analysis for active and passive pressure distribution on retaining wall [ J ]. Computers and Geotechnics, 1994, (16) : 291 -310.
2Cundall P A, Strack O D L. A discrete numerical model for granular assembles [J]. Geotechnique, 1979, 29 (1):47-65.
3Ricard Ramos. Centrifuge Study of Bending Response of Pile Foundation to a Lateral Spread Including Restraining Effect of Superstructure [ D ]. Doctor of Philosophy. Rensselaer Polytechnic Institute Troy, New York, 1999.
