平顶直墙暗挖零距离下穿既有地铁车站施工技术  

Construction technology of concealed excavation of flat-roofed straight wall through existing subway station at zero distance

作　　者：任伟明 林蓼 马秀成 李刚 REN Weiming;LIN Lu;MA Xiucheng;LI Gang(China Construction Third Engineering Bureau Group Co.,Ltd.,Wuhan 430000,Hubei,China;Beijing Urban Construction Design&Development Group Co.,Lid.,Beijing 100044,China)

机构地区：[1]中建三局集团有限公司,湖北武汉430000 [2]北京城建设计发展集团股份有限公司,北京100044

出　　处：《工程建设》2022年第11期49-55,共7页Engineering Construction

摘　　要：为研究平顶直墙暗挖下穿地铁车站施工技术,本文以武汉地铁7号线新河街站—螃蟹岬站区间下穿运营2号线螃蟹岬站工程为背景,论述了2号线螃蟹岬站的设计方案比选,详细讲述了平顶直墙密贴下穿地铁车站工程存在的风险、设计方案、处理措施以及平顶直墙暗挖设计中的控制要点,并将工程成功实施的案例结果进行分享,为该类似地铁换乘车站近距离下穿既有线车站工程的应用提供借鉴和参考。In order to study the construction technology of the flat-roofed straight wall under concealed excavation through the subway station,the project of Line 2 Pangxiejia Station under the operation of Xinhe Street Station~Pangxiejia Station of Wuhan Metro Line 7 is taken as background,the design scheme of Line 2 Pangxiejia Station is discussed,the risks,design schemes,treatment measures and control points in the design of flat-roofed straight wall under concealed excavation through the subway station are described in detail,the case results of the successful implementation of the project is shared,which can provide references for the application of the project of the similar subway interchange station to pass through the existing line station at close range.

关 键 词：既有地铁车站 平顶直墙 密贴下穿 方案比选 风险分析 

分 类 号：U231.4[交通运输工程—道路与铁道工程]