地铁车站暗挖工程大管棚超前支护施工技术研究  

Research on Advanced Support Construction Technology for Large Pipe Shed in Underground Excavation Engineering of Subway Stations

作　　者：宋洋 SONG Yang(China Railway 22nd Bureau Group Rail Engineering Co.,Ltd.,Beijing 100040,China)

机构地区：[1]中铁二十二局集团轨道工程有限公司,北京100040

出　　处：《工程技术研究》2023年第21期83-85,共3页Engineering and Technological Research

摘　　要：文章以北京市轨道交通昌平线南延工程为例,分析了大管棚超前支护施工技术在该地铁车站暗挖施工中的应用,研究表明,选择“偏心潜孔锤带入”(单根管棚超过60 m须采用仪器导向),成孔和埋设管棚一次完成,既能有效提升施工效率,又能减少对周围环境造成的扰动,施工效果显著,可为类似工程提供参考和借鉴。Taking the south extension engineering of Changping Line of Beijing rail transit as an example,this paper analyzes the application of advanced support construction technology for large pipe shed in the underground excavation construction of the subway station.The research shows that the selection of"eccentric hydro hammer leading"(instrument guidance is required for a single pipe shed exceeding 60 meters),can complete the hole forming and pipe shed burying in one go,which can not only effectively improve the construction efficiency,but also reduce the disturbance to the surrounding environment.The construction effect is remarkable and can provide reference for similar engineering.

关 键 词：地铁车站 暗挖工程 大管棚 超前支护 

分 类 号：U231[交通运输工程—道路与铁道工程]