Abstract:Due to the limitation of the numerical models of rock bolt by finite element method(FEM) in geotechnical engineering at present,the bolt model suitable for the FEM of strength reduction method and optimization of anchor parameters is exploited. The program of the 3D FEM considering seepage and the action of bolt is developed,in which the failure model of bolt because of lowness of cohesion between the bolt and the soil around can be considered as well. Through comparison of the calculation of FEM and limit equilibrium method,the applicability of FEM to analyze the slope stability is evaluated. The comparison result shows that the finite element method is feasible to analyze the stability of the slope considering seepage and strength reduction caused by seepage and the action of bolt.