单级悬臂式挡墙振动台模型试验与动力分析

Experiment of Cantilevered Retaining Wall Shaking Table Model and Its Dynamic Analysis

根据相似关系理论，对小型振动台模型试验的相似关系进行设计，确定模型试验相似常数，确定模型试验的相似材料及其主要物理力学参数。通过振动台模型试验。研究了以砂土为填料在水平地震作用下单级悬臂式挡土墙的动力特性。测试了单级悬臂式挡土墙模型在不同峰值的水平地震作用下的加速度、动位移及侧向动土压力随挡墙高度的变化规律。通过实例分析，为今后单级悬臂式挡土墙的抗震设计提供参考。

According to similarity theory, the similarity relations of the main physical quantities were studied in this paper, the main similarity coefficients and the simulation materials and its main properties of physical and mechanics for small-scale shaking table model tests were determined. Shaking table tests were conducted on cantilevered retaining wall filled with sand under horizontal seismic loading to investigate the dynamic response of the wall. The horizontal acceleration, dynamic horizontal displacement, dynamic stress of cantilevered retaining wall was achieved by model tests under different peaks of horizontal earthquake incentives. Through case studies, this paper provides reference for the seismic design of cantilevered retaining wall.