循环荷载作用下黏性土加筋挡墙有限元动力特性分析

Dynamic properties analysis of clay soil reinforced retaining wall under the circulating load by the FEM

在循环荷载作用下,对加筋土挡墙进行有限元模拟分析,研究黏性土加筋土挡墙的动力特性.重点研究挡墙回填土为黏性土条件下,不同加筋材料、动荷载峰值加速度对加筋土挡墙的影响.由计算结果认为在循环荷载作用下加筋土挡墙水平位移受动荷载峰值加速度影响较大,加筋土挡墙最大位置出现在挡墙下部,黏性回填土的加筋土挡墙变形量要小于砂土回填的加筋土挡墙.

The dynamic properties of clay soils reinforced retaining wall have been analyzed and studied under cyclic loading by the finite element method. The study, on the condition that the wall backfill is clay soil, focuses on the influence of different reinforced materials and the dynamic load peak acceleration on reinforced retaining wall. Research results show that, under cyclic loading, the horizontal displacement of reinforced retaining wall is greatly influenced by dynamic load peak acceleration. The location of maximum horizontal displacement appears at the lower part of the reinforced retaining wall. The deformation of reinforced retaining wall with clay backfill is less than that with sand backfill.