天津建设科技2025，Vol.35Issue(6)：16-20,39,6.DOI:10.3969/j.issn.1008-3197.2025.06-004
大断面平顶直墙暗挖隧道下穿天桥施工关键技术研究
Key Research on Construction Technology for Underpass Overpass of Large Section Horizontal Proof and Straight Wall Under Tunnel
摘要
Abstract
Taking the construction of a new subway station in Beijing as an example,this paper introduces the construc-tion technology of the two-story ten pilot tunnel with flat roof and straight wall,analyzes the active roof sup-port protection scheme of the tunnel under crossing the existing bridge facilities,and the influence of tunnel construction on the settlement of the bridge structure.Under the setting of the initial support structure of two-story ten pilot tunnels,the concealed excavation construction of the side and middle pilot tunnels on both sides is the main construction process causing the settlement of the bridge structure,and the quality control should be strengthened in the construction.关键词
暗挖隧道/平顶直墙/桥梁顶升Key words
underground excavation tunnel/horizontal proof and straight wall/bridge lifting分类
交通工程引用本文复制引用
WANG Bingyan..大断面平顶直墙暗挖隧道下穿天桥施工关键技术研究[J].天津建设科技,2025,35(6):16-20,39,6.基金项目
中铁十五局集团第五工程有限公司科技研发计划项目(2018B3) （2018B3）
