有限元强度折减法的边坡稳定分析  

Analysis of Slope Stability Using Strength Reduction FEM

作　　者：张彩双[1] 李俊杰[1] 胡军[1] 

机构地区：[1]大连理工大学土木水利学院水工教研室,辽宁大连116024

出　　处：《中国农村水利水电》2006年第5期72-74,共3页China Rural Water and Hydropower

摘　　要：介绍了一种基于有限元的强度折减边坡稳定性分析方法,讨论了该方法的基本原理、安全系数的物理意义以及屈服准则的选用,通过算例分析了不同屈服准则的选用对计算结果的影响以及有限元本身所存在的误差对计算结果的影响,同时在加固条件下用该方法进行计算分析得出结果,通过计算得出用该方法分析边坡在自重情况和加固情况下和实际边坡发生破坏的情况非常相似,说明了该方法在实际工程中的可行性,并验证了该方法相对于传统方法的优点。A kind of slope stability analysis method of strength reduction FEM is introduced in this paper. The basic theory and physics connotation for the safety coefficient, and selection of yield rule are discussed, and the influences of different yield rule selection and the impacts of error of FEM on calculation results in different cases are analyzed. The method is applied in the calculation for the slope failure under reinforced condition. The calculation results are very close to actual slope failure, which indicates the feasibility of the method. It is verified that the method is better than the tradition methods.

关 键 词：有限元 强度折减 边坡稳定 安全系数 

分 类 号：TU413.612[建筑科学—岩土工程]