基坑施工对邻近地铁车站和区间隧道的影响分析  

On Influences of Pit Construction to Adjacent Subway Station and Tunnels

作　　者：麦家儿[1] 

机构地区：[1]广州地铁设计研究院有限公司,广州工程师510010

出　　处：《城市轨道交通研究》2012年第6期100-103,共4页Urban Mass Transit

摘　　要：以佛山市越秀星汇云锦商业中心项目邻近已运营的广佛线桂城站及桂城站—南桂路站区间隧道为背景,采用Midas/GTS有限元软件,对该商业中心项目的基坑工程建立三维数值分析模型进行分析。在方案设计阶段采用施加基坑侧向位移来模拟地层损失继而导致地铁结构变形的简单模型,在施工图设计阶段采用动态模拟基坑开挖及回筑导致地铁结构变形的仿真模型。通过仿真计算为基坑设计和地铁结构安全评估分析提供了参考。Yuexiu-Yunjin Commercial Center-located at one side of subway station and tunnels-is taken as the back- ground, and the Midas/GTS software is used for a 3-dimen- sional analysis of the envelop safety and the assessment of the effect of excavation during the pit construction. Then a series of effective measures are proposed to instruct the pit construction, from which more experiences will be accumu- lated for similar projects on pit construction in urban rail transit.

关 键 词：基坑施工 地铁保护 安全评估 影响分析 

分 类 号：U231.3[交通运输工程—道路与铁道工程]