暗挖地铁车站PBA工法边桩施工分析  

Analysis of Side Pile Construction in the PBA Construction Method in the Underground-cut Subway Station

作　　者：吴阳 WU Yang(The Second Engineering Co.,Ltd.,China Railway Seventh Group,Shenyang,Liaoning Province,110000 China)

机构地区：[1]中铁七局集团第二工程有限公司,辽宁沈阳110000

出　　处：《科技资讯》2023年第18期152-155,共4页Science & Technology Information

摘　　要：洞桩法是由桩、梁、柱共同形成的受力体系,其适用于城市地面施工空间少、跨度大的地铁车站施工中。边桩施工是洞桩法施工中较为重要的工序。因此,该文以沈阳三号街站暗挖洞桩法(Pile-Beam-Archmethod,PBA)地铁车站为工程背景,分析了车站主体结构施工存在的风险源,并对人工挖空护壁、泥浆拌制、桩成孔质量检查以及边桩管柱等边桩施工工艺进行了阐述。以期为同类工程提供借鉴。The hole pile method is a stress system formed by piles,beams and columns,which is suitable for the construction of metro stations with less construction space and large span on the urban ground.Side pile construction is an important process in hole pile construction.Based on the PBA construction method of Shenyang No.3 Street Subway Station as the engineering background,this paper analyzes the risk sources existing in the construction of the main structure of the station,and expounds the construction technology of the side pile,such as artificial hollowed-out wall protection,mud mixing,pile hole quality inspection,and side pile pipe column.In order to provide reference for similar projects.

关 键 词：PBA工法 车站主体结构 边桩 风险源 

分 类 号：U231.3[交通运输工程—道路与铁道工程]