基于强度折减法的边坡稳定性有限元分析

Stability finite-element analysis of slope based on strengthreduction method

介绍了有限元强度折减法的基本原理,结合建立的二维边坡模型,基于有限元强度折减法,运用有限元软件Midas/GTS对该边坡进行了数值分析,得出边坡在自重作用下的水平位移等值云图、应力与应变云图及安全系数指标,依此确定了最危险滑面位置和形状以及整体失稳的安全系数。

This paper introduced the basic principle of finite element the shear strength reduction,combining the established two dimensional slope model,and carried out the numerical analysis on the slope by using the finite element software of Midas/GTS based on strength reduction fem method,and obtained the horizontal displacement equivalent cloud picture,stress and deformation cloud picture and safety index of slope under gravitative loads,the position and shape of the most dangerous sliding surface of slope as also as the safety factor of overall instability are determined in paper.