摘要
随着城市地铁的飞速发展,在已有的城市建设环境限制下,洞桩施工法(Pile-Beam-Arch method,PBA)正逐渐成为建造城市地铁的首选方法。该文以沈阳地铁3号线三好街站为工程背景,介绍了PBA施工方法与施工控制要点,重点阐述了初支扣拱施工、边桩施工、土方开挖等关键工序控制要点,降低施工过程中关键工序对整个施工过程的影响,为类似暗挖车站工程施工提供借鉴。
With the rapid development of urban subways,the PBA construction method is gradually becoming the preferred method for urban subway construction under the constraints of the existing urban construction environment.This paper takes the Sanhaojie Station of Shenyang Subway Line 3 as the engineering background,introduces the PBA construction methods and construction control points,and focuses on key process control points such as primary buttress arch construction,side pile construction and earthwork excavation,so as to reduce the influence of key processes on the whole construction process during construction,and provide models for the construction of similar underground-cutting projects.
作者
宗建
ZONG Jian(The Second Engineering Co.,Ltd.,China Railway Seventh Group,Shenyang,Liaoning Province,110000 China)
出处
《科技资讯》
2023年第19期92-95,共4页
Science & Technology Information
关键词
PBA施工
初支扣拱
控制要点
暗挖
PBA construction
Primary buttress arch
Control points
Underground excavation
