石家庄市城市轨道交通1号线二期工程东洋站基坑开挖施工技术研究  

Research on Foundation Pit Excavation Technology of Dongyang Station in Phase II of Shijiazhuang Urban Rail Transit Line 1

作　　者：张育松 ZHANG Yusong(China Railway Construction Xiong’an Investment and Development Co.,Ltd.,Shijiazhuang,Hebei,071000,China)

机构地区：[1]中铁建雄安投资发展有限公司,河北雄安071000

出　　处：《石家庄铁路职业技术学院学报》2024年第3期19-23,共5页Journal of Shijiazhuang Institute of Railway Technology

摘　　要：依托石家庄市城市轨道交通1号线二期工程,阐述东洋站基坑开挖施工过程。为保证基坑开挖过程的稳定性,采用φ800@1200钻孔灌注桩与三道钢支撑相结合的支护型式,基坑开挖遵循自上而下分层、分段依次开挖,随挖随支护的原则实施,严禁掏底施工。从施工效果分析,该工法能有效控制基坑变形和地表沉降,为今后类似工程的施工提供指导。This paper describes the excavation process of foundation pit excavation of Dongyang Station,part of the Phase II project of Shijiazhuang urban rail Transit Line 1.To ensure stability during excavation,a combination ofφ800@1200 bored piles and triple steel struts was used as the support system.The foundation pit excavation the top-down method,with layers and sections excavated sequentially while implementing support measures immediately after excavation,strictly avoiding undercutting.From the analysis of the construction effect,this method effectively controlled pit deformation and surface settlement,providing valuable guidance for similar future projects.

关 键 词：基坑开挖 钻孔灌注桩 钢支撑 

分 类 号：TV551.4[水利工程—水利水电工程]