刚性挡墙被动土压力模型试验研究
Experimental research on the passive earth pressure acting on a rigid wall
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摘要: 为了研究刚性挡墙被动土压力的形成机理 ,介绍了一个试验模型的制作 ,通过模型试验对砂土在不同变位情况 ,即墙体的平移 (T模式 )、绕墙顶上某点转动 (RTT模式 )和绕墙底下某点转动 (RBT模式 ) ,得出刚性挡墙被动土压力的试验结果 ,最后分析了不同变位条件下被动土压力的变化规律。Abstract: In this paper,In order to improve the understanding of the factors governing the magnitudes and distributions of the earth pressures on rigid retaining wall,model tests were performed for passive earth pressure acting against a vertical rigid wall, which moved into a mass of dry sand under various modes of wall movements. The types of wall movement includes translation(T),rotation about a point above the wall top(RTT) and rotation about a point below the wall base(RBT).