水资源与水工程学报2017，Vol.28Issue(2)：222-226,5.DOI:10.11705/j.issn.1672-643X.2017.02.38
某城市排土场边坡三维稳定性分析
Three-dimensional stability analysis of city waste dump slope
金福喜 1钱毅 1袁权威1
作者信息
- 1. 中南大学地球科学与信息物理学院有色金属成矿预测与地质环境监测教育部重点实验室,湖南长沙410083
- 折叠
摘要
Abstract
Considering the problems that it would induce disasters of the waste dump near a city under heavy rainfall,four kinds of heavy rainfalls were designed.Using modeling function of ANSYS software,a model for the waste dump stability was established.The ABAQUS finite element analysis software was utilized to analyze fluid-solid coupling of unsaturated soils.Four kinds of heavy rainfalls were imposed on the dump.also considering that the permeability coefficient of soil was influenced by soil porosity ratio and moisture content.By monitoring wheather there was an abrupt increase in displacement of characteristic places of finite element and whether plastic deformation area cuts through the dump,whether or not there was a failure of the risk was judged.Besides,whether the finite element numerical calculation was convergence was used to solve the factor of stability.The results showed that,the waste dump might slide in the case of rainfall intensity larger than 30.72 mm/h and its duration longer than 30 minutes,this reminded the relevant departments to prepare for disaster assessment and risk prevention.关键词
排土场/降雨/流固耦合/ABAQUS软件/边坡稳定性/地质灾害Key words
waste dump/rainfall/fluid-solid coupling/ABAQUS software/slop stability/geological hazard分类
建筑与水利引用本文复制引用
金福喜,钱毅,袁权威..某城市排土场边坡三维稳定性分析[J].水资源与水工程学报,2017,28(2):222-226,5.
