Review on Numerical Analysis of Dynamic Stability of Soil Slope

The methods used to evaluate the stability of soil slope under seismic action include the pseudo static analysis,Newmark sliding block analysis,and finite-element analysis.The development and deficiency of these methods are summarized and reviewed in this paper.A reasonable method to analyze the stability of soil slope under seismic action should consider various factors,including the dynamic constitutive model of slope soil,wave theory in porous media,seismic input of slope soil,and selection of evaluation index for stability of soil slope under seismic action.Based on the current research status and progress of the four aspects,a stability evaluation of safety degree of soil slope under seismic action is proposed in light of the static and dynamic finite element analysis.This method can determine the time history curve of dynamic displacement,permanent displacement,and dynamical safety factor of the feature point of slope slide,which can evaluate the stability of soil slope under seismic action.