紧邻既有运营地铁的换乘车站微扰动拓建技术研究  

Study on Micro-disturbance Extension Technique for Transfer Stations Adjacent to Existing Subways

作　　者：刘家骥 LIU Jiaji(Shanghai Construction No.2(Group)Co.,Ltd.,Shanghai 200090,China;Shanghai Center of Top-down Method in Construction Engineering,Shanghai 200090,China)

机构地区：[1]上海建工二建集团有限公司,上海200090 [2]上海建筑工程逆作法工程技术研究中心,上海200090

出　　处：《建筑施工》2024年第10期1673-1678,共6页Building Construction

基　　金：上海市科学技术委员会课题(18DZ2282500)。

摘　　要：在已建成地铁邻近区域建设新线路换乘车站的需求日益增加,而地铁和换乘车站的建设过程中,对于既有运营中线路的保护要求也越来越高。以上海轨道交通14号线云山路站工程为例,分析了换乘车站拓建过程中的重难点,通过围护跳打施工、电渗法隐患超前检测、挖土及障碍物拆除组织优化、钢支撑自动应力补偿、新老车站无缝连接等微扰动拓建技术,保障了既有地铁车站及线路的运行安全,可为类似工程提供借鉴。The demand for constructing new transfer stations adjacent to existing subways is increasing,along with higher protection requirements for the operational lines during construction.Taking the Yunshan Road Station project of Shanghai Rail Transit Line 14 as an example,key and difficult points in the process of expanding the transfer station are analyzed.Techniques such as enclosure jumping construction,advanced detection of hidden dangers by electroosmosis,optimization of excavation and barrier removal organization,automatic stress compensation of steel support,and seamless connection of new and old stations ensure the operational safety of existing subway stations and lines.These methods can provide reference for similar projects.

关 键 词：地铁车站 换乘改造 深基坑 微扰动拓建技术 电渗法 

分 类 号：TU94[建筑科学—建筑技术科学]