Elastic plastic analysis of Expressway Slope Stability Based on finite element analysis

In order to improve the stability of expressway slope, an elastic-plastic analysis method based on finite element analysis is proposed. The limit equilibrium method is used to calculate the safety factor of slope. According to the calculation results, the sliding surface of the slope is determined. Based on the determined slope sliding surface, the finite element method is used to complete the finite element simulation of sliding surface, and the discrete finite element matrix is constructed to complete the elastic-plastic analysis of expressway slope stability. Experimental results show that, compared with traditional research methods, the proposed method can extract slope safety factor more accurately and improve the efficiency of analysis.