Reliability Analysis of Slope Considering Earthquake Action Based on Stochastic Finite Element Method

Based on the stochastic finite element method (FEM), slope reliability analysis is performed in this paper considering the inherent variability in parameters of rock and soil materials and the randomness of seismic effects, which is incorporated as the horizontal acceleration by pseudo-static method. Safety factor of the slope, which represents its reliability, is obtained by the shear strength reduction finite element method. Efficient Monte Carlo reliability analysis is accomplished using response surface method between the safety factor, the parameters of rock and soil mass and the horizontal acceleration of earthquake. This paper gives full play to the accurate simulation of FEM and the rationality of reliability analysis, and provides an effective method for slope safety assessment. A high slope example in rock engineering is presented to verify the feasibility and correctness of this method.