多基坑同时施工对相邻地铁线路的叠加效应影响及控制措施

发布时间：2018-04-28 20:28

本文选题：多基坑施工 + 叠加效应　；参考：《城市轨道交通研究》2017年10期

【摘要】：随着城市建设步伐的加快,不可避免地会出现邻近地铁线路的多个基坑同时施工的情况。为确保既有地铁线路结构及运营安全,有必要研究邻近地铁线路的多个基坑同时开挖对地铁线路结构产生的叠加效应。上海长泰国际广场项目和浦东软件园三期A1地块综合商业配套项目分别位于上海轨道交通2号线金科路站两侧,两个项目的基坑同时施工,对比分析了施工阶段对桩基、围护、加固、基坑开挖、地下室回筑等进行监测的数据,在此基础上分析了邻近基坑开挖对2号线金科路站车站及附近隧道结构变形的叠加效应,并制定了有效的监护方案及防护措施。
[Abstract]:With the acceleration of urban construction, it is inevitable that several foundation pits adjacent to subway lines will be constructed simultaneously. In order to ensure the structure and operation safety of the existing subway lines, it is necessary to study the superposition effect of excavation of several foundation pits adjacent to the subway lines on the subway line structure at the same time. The Shanghai Changtai International Plaza Project and Pudong Software Park Phase 3 A 1 comprehensive commercial matching project are located on both sides of Jinke Road Station of Shanghai Rail Transit Line 2, respectively. The foundation pit of the two projects is under construction at the same time. Based on the monitoring data of reinforcement, foundation pit excavation and basement back construction, the superposition effect of adjacent foundation pit excavation on the deformation of Jinke Road Station and adjacent tunnel structure on Line 2 is analyzed. The effective monitoring scheme and protective measures are also worked out.
【作者单位】：上海申通地铁集团有限公司;
【分类号】：TU753;U231

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