土木工程与管理学报2016，Vol.33Issue(6)：16-21,6.
深基坑开挖引起邻近管线位移影响的数值分析
Numerical Analysis for the Displacements of the Adjacent Pipeline Caused by a Deep Foundation Pit Excavation
摘要
Abstract
Base on the elasto-plastic plane strain finite element method,displacements laws of the adjacent pipeline caused by a deep foundation pit excavation are analyzed. The Abaqus software is adopted,Mohr-Coulomb constitutive model and CPE4 element type are introduced. The function of model changing and removing is applied to simulate the displacements laws of gas pipeline and water distribution pipeline during the whole excavation process. Then the computation results are compared with the real-time monitoring data. The results show that the calculated values are close to the monitoring values. Furthermore,the influence rules of the support styles,pile stiffness,surface load for displacements of the pipelines are analyzed respectively. It is shown that the support plays a critical role in the displacement of foundation pit surrounding pipeline. The settlements of pipeline will gradually decrease with the increasing stiffness of pile,while increase with the increasing surface load. But the last two factors are not as remarkable as the first factor.关键词
深基坑/弹塑性/平面应变/管线位移/内支撑/桩体刚度/表面堆载Key words
deep excavation/elasto-plastic/plane strain/pipeline displacements/support/pile stiffness/surface load分类
建筑与水利引用本文复制引用
程涛,许万辉,胡仁杰,余宗源..深基坑开挖引起邻近管线位移影响的数值分析[J].土木工程与管理学报,2016,33(6):16-21,6.基金项目
湖北省自然科学基金（2012FKC14201）；湖北省教育厅自然科学基金重点项目（D20134401）；湖北理工学院优秀中青年创新团队计划项目 （）
