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首页> 外文会议>Coupled site and soil-structure interaction effects with application to seismic risk mitigation >ISSUES RELATED TO THE DYNAMIC INTERACTION OF RETAINING WALLS AND RETAINED SOIL LAYER
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ISSUES RELATED TO THE DYNAMIC INTERACTION OF RETAINING WALLS AND RETAINED SOIL LAYER

机译：挡土墙与固结土层动力相互作用的相关问题

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摘要

The present work aims to examine how and to what extent potential soil nonlinear-ity may affect: (a) the dynamic distress of a rigid fixed-base retaining wall and (b) the seismic response of the retained soil layer. For this purpose, a parametric study is conducted which is based on 2-D dynamic finite element analyses. Soil nonlinearity is realistically taken into account via the commonly used equivalent-linear procedure. In order to examine more thoroughly the influence of material nonlinearity, the developed numerical model is studied under idealized seismic excitations and several intensity levels of the imposed ground acceleration. The results justify the perception that the nonlinear soil behavior has a considerable impact on the dynamic earth pressures developed on the wall and the amplification of the acceleration developed on the backfill as well.
机译：本工作旨在研究潜在的土壤非线性如何以及在何种程度上影响：（a）刚性固定基础挡土墙的动态应力，以及（b）保留土层的地震响应。为此，基于二维动态有限元分析进行了参数研究。实际上，通过常用的等效线性程序考虑了土壤非线性。为了更彻底地检查材料非线性的影响，在理想的地震激励和施加的地面加速度的多个强度水平下研究了开发的数值模型。结果证明，土壤的非线性行为对壁上产生的动态土压力以及回填上产生的加速度的放大有很大影响。

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