渗流引起强度降低的三维强度折减有限元程序  

Development of 3d SSRFEM considering strength ebb caused by seepage

作　　者：韦立德[1] 陈从新[1] 杨春和[1] 

机构地区：[1]中国科学院武汉岩土力学研究所,湖北武汉430071

出　　处：《辽宁工程技术大学学报（自然科学版）》2007年第2期207-209,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：国家重点基础研究发展规划资助项目(973)(2002CB412704);国家自然科学基金资助项目(50239070)

摘　　要：在探索耦合理论基础上,研制出了一个考虑渗流场和由于泡水含水量变化引起岩土体强度参数降低的三维强度折减有限元程序。通过实例计算并与传统极限平衡法实例计算分析结果对比研究,对抗剪强度折减有限元法分析边坡稳定问题的适用性进行了评价,得出采用三维强度折减有限元法确定考虑渗流场和由于泡水含水量变化引起岩土体强度参数降低的边坡稳定性安全系数是可行的结论。The technique of the 3D finite element method（FEM） of coupling seepage and stress is studied, and the corresponding program for the FEM of strength reduction method is developed. Through comparison of the FEM calculation with limit equilibrium, the applicability of FEM to analyse the slope stability is evaluated. The comparison result shows that the FEM method is feasible to analyze the stability of the slope considering seepage and strength reduction caused by seepage.

关 键 词：边坡稳定性 渗流 强度折减 弹塑性有限元 

分 类 号：O319.56[理学—一般力学与力学基础]