软土地层暗挖车站工程中组合顶管相继顶进的叠加效应分析  

Superimposed Effect Analysis of Progressive Composite Pipe-Jacking for Subsurface Excavated Subway Station Project in Soft Soil Stratum

作　　者：杨忠勇 王禹椋 潘伟强 YANG Zhongyong;WANG Yuliang;PAN Weiqiang(Tongji University,Shanghai 200092,China;Shanghai Tunnel Engineering Co.,Ltd.,Shanghai 200032,China)

机构地区：[1]同济大学,上海200092 [2]上海隧道工程有限公司,上海200032

出　　处：《建筑施工》2018年第12期2184-2185,2193,共3页Building Construction

基　　金：上海市科学技术委员会创新行动计划项目(17DZ1203804);上海申通地铁集团有限公司科研计划项目

摘　　要：以上海市轨交14号线静安寺站工程为背景依托,建立组合顶管相继顶进施工的二维模型。分别分析了软土地层中组合顶管相继顶进的叠加效应对周围土体变形、场地周边高架桥桩基变形产生的影响。结果显示,组合顶管结构非对称部分施工将产生大幅度的不均匀沉降,这一工况存在较大的施工风险。Based on the Jing'an Temple Station project of Shanghai Metro Line 14,a two-dimensional model of progressive composite pipe-jacking is established.The superimposed effect of progressive composite pipe-jacking on the deformation of surrounding soil and pile foundation of viaduct around the site is analyzed.The results show that the construction of the asymmetrical part of the composite pipe-jacking structure will produce significant uneven settlement,which has a great construction risk.

关 键 词：暗挖车站 组合顶管 软土地层 叠加效应 

分 类 号：TU93[建筑科学—结构工程]