基于ZSOIL强度折减法的边坡稳定性分析

Analysis of slope stability by strength reduction FEM based on ZSOIL

针对山西某高填土边坡稳定性进行分析,利用ZSOIL有限元软件,基于强度折减法对该场地高填土边坡4个典型剖面进行稳定性计算,并与传统极限平衡法计算结果进行对比分析。结果表明:有限元软件作为边坡稳定性分析的辅助工具,可有效提高边坡稳定性分析结果的可靠性,特别适用于难以确定滑裂面形状和位置的边坡,基于有限元的边坡稳定性计算结果与传统极限平衡法相差不大,两种方法得到的滑裂面的形状和位置基本吻合,利用该软件进行高填土边坡稳定性分析是可靠的.

Finite element software is an effective auxiliary tool on slope stability analysis which can improve the reliability of slope stability analysis results effectively. It is especially useful for the slope which is difficult to determine the shape and position of the slide plane. On the analysis of the slope stability in a high fill foundation in Shanxi, this paper choose the ZSOIL numerical simulation tool based on strength reduction FEM to analyze the four typical slope stability under natural condition and control case, and compared with the traditional limit equilibrium methods. It can draw the conclusion that the results of slope stability calculation based on finite element is similar with the limit equilibrium method, the shape and position of the slide plane based on two methods arc basic coincidence. It is feasible and practical to use the ZSOIL based on strength reduction method to analyze slope stability of a high fill foundation.