港工技术2012，Vol.49Issue(4)：51-53,67,4.
超大型基坑逆作法施工引起的地表沉降
Ground Settlement Caused by Top-down Construction Method of Ultra-large Foundation Ditch
摘要
Abstract
We use finite difference software to simulate ground settlement caused by top-down construction of ultra-large foundation ditch,analyze the impact on ground settlement by plane sizes of the foundation ditch,depth,width and elastic modulus of the diaphragm wall. The model calculation results show that the distance from ultra-large foundation ditch to settlement convergence should be at least 8 times of maximum foundation ditch depth,which is larger than the suggested value in previous documentation,i.e. the distance from foundation ditch to settlement convergence is 4 times of maximum foundation ditch depth.关键词
超大型基坑/地下连续墙/逆作法施工/地表沉降/基坑最大挖深Key words
ultra-large foundation ditch/concrete diaphragm wall/top-down construction method/ground settlement/maximum depth of foundation ditch分类
建筑与水利引用本文复制引用
王梅,李镜培..超大型基坑逆作法施工引起的地表沉降[J].港工技术,2012,49(4):51-53,67,4.基金项目
上海市科委科技攻关计划(10231200500) （10231200500）
