齿坎式路基挡墙抗滑作用的有限元分析

FEM Analysis of Sliding Resistance of Retaining Structure with Key Wall

本文以齿坎式挡土结构物的现场抗滑试验为依据,运用非线性有限单元法,首先对无齿挡墙的现场试验进行了反分析;然后,在此基础上研究了齿长为0.7m和1.0m的现场试验,研究了位于软弱地基中的挡土结构物中的齿坎抗滑效应,理论研究与实测试验成果具有较好的一致性,其误差能满足工程设计要求。该理论研究为工程设计提供了齿坎抗滑作用的计算理论。

Based on the field tests of the retaining wall with tenon, this paper presents back calculation analysis of the field test of retaining wall without tenon by means of nonlinear FEM and discusses the field tests of retaining wall with tenon of 0.7m and 1 .Om length as well as the sliding resistance effect of tenon in the retaining wall in the soft ground. Theoretical study findings are consistent with the testing results with the error meeting the with the engineering design requirement. It provides a calculation theory of sliding resistance of tenon for engineering design.