土岩基坑开挖变形相关因素与规律  

Relative Factors and Rules About Deformation of Foundation Pits in Strata with Rock-soil

作　　者：祝文化[1] 刘毅[1] 夏元友[1] 裴尧尧[1] 

机构地区：[1]武汉理工大学土木工程与建筑学院,武汉430070

出　　处：《武汉理工大学学报》2012年第5期106-110,共5页Journal of Wuhan University of Technology

摘　　要：利用FLAC3D,模拟设计要求和最不利状态情况下某地铁车站深基坑工程开挖。研究得出土岩基坑的变形规律特点,模拟结果同时表明:基坑周边的荷载对土体沉降影响较大,对支护桩侧向位移影响较小,且车辆荷载比堆载影响大;有无支撑对基坑变形影响较大。Simulated two cases of excavation for deep foundation pit in a subway station using FLAC3D： the design requirements and the most adverse conditions.Research unearthed rock excavation deformation regular features,the simulation results also showed that： the load of around foundation soil subsidence greater impact on smaller lateral displacement of the supporting piles,and vehicle load heap load impact;no support larger pit deformation.

关 键 词：土岩组合基坑 支护桩 变形规律 数值模拟 

分 类 号：TU463[建筑科学—结构工程]