地铁深基坑开挖对长距离共用地下连续墙的既有车站结构变形影响分析  被引量:2

Analysis on the Influence of Subway Deep Foundation Pit Excavation on Structure Deformation of Existing Station with Long-distance Shared Underground Diaphragm Wall

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作  者:苗天 董立冬 张阅博 MIAO Tian;DONG Lidong;ZHANG Yuebo(Zhengzhou Design Institute of China Railway Engineering Design and Consulting Group Co.,Ltd.,Zhengzhou,Henan 450001)

机构地区:[1]中铁工程设计咨询集团有限公司郑州设计院,河南郑州450001

出  处:《工程技术研究》2022年第23期17-19,共3页Engineering and Technological Research

摘  要:文章依托苏州轨道交通S1线唯亭站工程,对新建地铁车站紧贴既有运营车站施工并共用地下连续墙的施工进行数值模拟,分析基坑开挖和结构回筑施工过程对既有车站墙体水平位移、底板(道床)竖向位移及周边地表沉降的影响规律,并结合现场监控量测数据进行对比分析,针对性提出控制既有车站变形的措施。Based on the Weiting Station project of Suzhou rail transit line S1,this paper makes a numerical simulation of the construction of the new subway station close to the existing operating station with shared underground diaphragm wall,analyzes the influence of the foundation pit excavation and the structural backfill construction on the horizontal displacement of the existing station wall,the vertical displacement of the bottom plate(ballast bed)and the surrounding surface settlement,and makes a comparative analysis based on the on-site monitoring and measurement data.The measures to control the deformation of the existing station are put forward.

关 键 词:深基坑 既有运营车站 变形 地铁工程 施工监测 

分 类 号:U231.3[交通运输工程—道路与铁道工程]

 

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