平行换乘车站低插入比共用地下墙基坑开挖的变形控制  

Deformation control in excavating the foundation pit with a low insertion-ratio diaphragm wall that is shared with an existing subway station

作　　者：王毅斌[1] 李志高[1] 王洪新[1] 

机构地区：[1]同济大学土木工程学院,上海200092

出　　处：《铁道建筑技术》2005年第2期44-46,共3页Railway Construction Technology

摘　　要：上海地铁某平行换乘车站建设中,后建车站施工时由于线路限制,与已建车站共用一堵地下墙,地下墙插入比仅为0.14,远远不能满足基坑变形控制的要求,对邻近已建车站的运营安全构成极大威胁。介绍了该工程的变形控制措施,并通过现场实测数据分析了其控制效果。In constructing a parallel interchange station of Shanghai subway, the foundation pit had to share a diaphragm wall with an existing station because of environmental limits. Furthermore, The insertion ratio of this wall was only 0.14, which resulted in significant difficulties in deformation control and remarkable threat to the safe operation of the existing station. The paper gives the measures taken for deformation control, and analyzes the control results using on-site measurement data.

关 键 词：变形控制 地下墙 基坑开挖 换乘车站 插入 平行 车站建设 上海地铁 运营安全 控制措施 控制效果 数据分析 现场实测 线路 

分 类 号：U231.3[交通运输工程—道路与铁道工程] TU473.2[建筑科学—结构工程]