Multi-stage slope displacement analysis based on real-time dynamic Newmark slider method

Abstract

Based on the upper-bound limit analysis method and the real-time dynamic Newmark slider method, the internal and external power of the multi-stage slope under earthquake action is calculated at each moment, and the real-time yield acceleration coefficient and the horizontal displacement of the slope toe are obtained. The influence of soil parameters and geometric characteristics of the slope on the horizontal displacement of the slope toe under the seismic action is analyzed with a typical three-stage slope. The results indicate that the yield acceleration coefficient of the landslide shows an increasing trend during the sliding process, and the value of the horizontal displacement of the slope toe considering the real-time dynamics is smaller than the result without considering. Changing the geometric characteristics of the slope can improve the seismic performance of the multi-stage slope to a certain extent.