挡土墙的稳定性验算【衡重式挡土墙稳定性验算分析实例】

衡重式挡土墙的稳定性验算分析实例

摘要：衡重式挡土墙是利用衡重台上部填土的下压作用和全墙重心的后移，增加墙身稳定，节约断面尺寸，适用于山区、地面横坡陡峻的路肩墙。 本文以某工程衡重式挡土墙为例，利用理正软件对其稳定性进行验算，对验算结果进行总结分析，可为同类工程的设计提供参考。

关键词：衡重式挡土墙 稳定性 重力式挡土墙

abstract: retaining wall is to use the platform under the pressure of filling the role of the ministry and the whole center of gravity moved back wall. it can be increased the stability of wall and to reduce the section size. so it apply to the mountains on the ground cross slope steep shoulder wall. this text based on a retaining wall, using of lizheng software to check its stability

and analyze the results for checking. purpose is to provide a reference for the design of similar projects.

keywords ：weighing retaining wall ;stability; gravity retaining wall

一、衡重式挡墙土压力计算基本原理

衡重式挡土墙等折线形墙背挡墙不能直接用库仑理论计算主动土压力，这时，应将上墙和下墙看作独立的墙背，分别按库仑理论计算主动土压力，然后取两者的矢量和作为全墙的土压力。计算上墙