考虑地震荷载的挡土墙土压力计算方法研究

基于库伦土压力理论，建立了水平地震荷载作用下挡土墙土压力强度的一阶微分方程，并求得其精确解。文中给出的曲线分布土压力强度与物步公式给出的直线分布土压力强度相比，其土压力作用点高一些，对挡土墙倾覆力大一些，因而按文中所给计算式进行挡土墙设计更为安全可靠。

Study on Calculation Method of Retaining Wall Soil Pressure with Earthquake Load

Based on Coulomb earth pressure theory,first order differential equation is established for retaining wall soil pressure intensity under the effect of horizontal earthquake load and its exact solution is obtained.Compared to linear distributed soil pressure intensity given by material step formula,curve distributed soil pressure intensity referred herein has higher soil pressure point and higher overturning force to retaining wall;therefore,it is more safe and reliable for remaining wall design according to the formula given in this paper.