西北地震学报2011，Vol.33Issue(3)：209-211,217,4.
基于极限平衡条件的土体局部稳定分析
Analysis on Local Stability of Soil Mass Based on Limit Equilibrium Condition
摘要
Abstract
Based on the Mohr-Coulomb strength theory and the stress analysis of geotechnical engineering structures, the local stability of soil mass is conducted. In soil mass, ratio of the integral value of the shear stress and the integral value of the shear strength along any slip surface is defined as safety factor K, and when |K - 1. 00|≤0. 05, it is supposed to be reaching the limit equilibrium state. The numerical simulation results for two cases show that, with the increase of the load, soil mass or soil slope reache limit equilibrium state from part to globe, finally,to globe failure. It is also proved that this method is available to simulate the progressive failure process of soil mass.关键词
土体/极限平衡条件/安全系数/局部破坏/有限元应力分析Key words
Soil mass/ Limit equilibrium condition/ Safety factor/ Local failure/ Stress analysis with finite element method分类
建筑与水利引用本文复制引用
邵龙潭,刘士乙..基于极限平衡条件的土体局部稳定分析[J].西北地震学报,2011,33(3):209-211,217,4.基金项目
国家重点基础研究发展计划973项目(编号2010CB731502) （编号2010CB731502）
工业装备结构分析国家重点实验室专项基金项目(S09104) （S09104）
