砂层地铁车站暗挖施工技术研究  

Construction Technology for Subsurface Excavation of Metro Station at Sand Stratum

作　　者：顾拥武 

机构地区：[1]中铁三局集团第四工程公司,北京100061

出　　处：《铁道标准设计》2004年第11期59-63,共5页Railway Standard Design

摘　　要：北京地铁5号线磁器口车站主体结构大部分位于粉细砂、细砂及中粗砂层中,结构埋深10m左右,采用中洞法施工。由于地质条件多为砂层,施工环境复杂,对地表沉降要求严格,主要阐述车站主体的施工方法,对施工各阶段地表沉降原因进行分析,提出车站施工中的相关建议。Ciqikou Station on Beijing Metro Line #5 is primarily located in super fine sand, fine sand, and medium and coarse sand stratum with a buried depth of 10m. Central excavation method was used. The complicated sand environment has high demand over ground surface settlement. A description is given of construction of the station, and analysis was made of causes for settlement during each construction stage, and countermeasures were given.

关 键 词：暗挖施工 地铁车站 地表沉降 车站施工 中洞法 北京地铁 砂层 主体结构 粉细砂 埋深 

分 类 号：U231[交通运输工程—道路与铁道工程] U455[建筑科学—桥梁与隧道工程]