充填挡墙受力及变形模拟分析  

Stress and deformation simulation analysis of filling retaining wall

作　　者：曹泽宇 张静辉 何伟 刘臻 任伟成 Cao Zeyu;Zhang Jinghui;He Wei;Liu Zhen;Ren Weicheng(School of Mining Engineering,North China University of Science and Technology,Tangshan 063210,China;School of Civil and Resource Engineering,Beijing University of Science and Technology,Beijing 100083,China)

机构地区：[1]华北理工大学矿业工程学院,河北唐山063210 [2]北京科技大学土木与资源工程学院,北京100083

出　　处：《山西建筑》2021年第20期72-74,共3页Shanxi Architecture

基　　金：河北省大学生创新创业训练计划(X2018049);唐山市科技计划项目(20130207b)。

摘　　要：充填挡墙作为充填工艺中的关键环节,其强度和变形情况是研究的重点。利用Plaxis软件对充填挡墙的正面和侧面分别利用不同的算法进行模拟,对模拟结果图分析,得出以下结论:最大水平位移出现在挡墙侧面的左下方,与总应力模拟图相对应,此处的应力在整个挡墙侧面中最大,所以此处最容易受到破坏,随着一次充填高度的增加,未接触充填料浆的挡墙水平位移明显增大。挡墙中的应力分布与静力学对挡墙的受力分析一致,未接触充填料浆的挡墙内部会出现较小的应力。挡墙内部的应变在左上侧出现一个半圆形的小应变区,然后由半圆向四周均匀的扩散,其余各处的应变大小相差不大,分布均匀。As the key link in the filling process,the filling retaining wall is the focus of research on its strength and deformation.In this paper,the plaxis software is used to simulate the front and side of the filling retaining wall with different algorithms,and the following conclusions are drawn from the graph analysis of the simulation results.The maximum horizontal displacement appears at the lower left of the side of the retaining wall,which corresponds to the total stress simulation diagram.The stress here is the largest in the entire side of the retaining wall,so it is most vulnerable to damage here.With the increase of the filling height at one time,the horizontal displacement of the retaining wall not in contact with the filling slurry increases significantly.The stress distribution in the retaining wall is consistent with the static analysis of the stress on the retaining wall,and there will be less stress inside the retaining wall that does not contact the filling slurry.The strain inside the retaining wall appears a small semi-circular strain zone on the upper left side,and then diffuses uniformly from the semi-circle to the surroundings.The strains in other places are not much different and are evenly distributed.

关 键 词：充填挡墙 PLAXIS 应力 应变 

分 类 号：TU476.4[建筑科学—结构工程]