PBA工法车站施工扣拱技术研究  

Research on the Supporting Arch Technology of Station Construction in the PBA Construction Method

作　　者：宗建 ZONG Jian(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160-163,共4页Science & Technology Information

摘　　要：暗挖洞桩法(Pile-Beam-Arch-method,PBA)具有独特的优势,可以在地面上保证城市交通和地下管道的正常运行,在城市地下空间的建设中发挥重要作用。但PBA工法的主要技术和设计问题是扣拱施工的建造。在进行扣拱施工和临时支撑拆除时,必须严格按照设计顺序进行施工。该文以沈阳地铁3号线三好街车站为例,阐述PBA工法中极为关键的扣拱工序的施工过程及在施工过程中遇到的扣拱工艺的技术重难点。The PBA method has unique advantages,and it can ensure the normal operation of urban traffic and underground pipelines on the ground and play an important role in the construction of urban underground space.However,the main technical and design problem of the PBA construction method is the construction of supporting arch construction.When carrying out supporting arch construction and temporary support removal,it is necessary to construct in strict accordance with the design order.Taking the Sanhaojie Station of Shenyang Subway Line 3 as an example,this paper expounds the construction process of the key supporting arch process in the PBA construction method and the technical difficulties of the supporting arch process encountered during construction.

关 键 词：PBA工法 扣拱施工 施工技术 扣拱工艺 

分 类 号：U231.3[交通运输工程—道路与铁道工程]