隧道仰拱施工工艺研究及大跨度仰拱栈桥研制  

Research on Construction Technology of Tunnel Invert and Development of Large-span Invert Trestle

作　　者：李闯 Li Chuang

机构地区：[1]中铁长安重工有限公司

出　　处：《工程机械》2024年第2期155-158,I0008,共5页Construction Machinery and Equipment

摘　　要：以钻爆法施工为研究目标,深入研究隧道仰拱施工工艺,结合施工工艺对仰拱栈桥进行研究,通过分析现有栈桥优缺点,提出一种安全性更好,劳动强度更低,效率更高的仰拱施工解决方案。通过详细的设计计算,研制了一种大跨度仰拱栈桥,有效跨度达36 m,可满足3个仰拱施工面的开展,在多个工地现场应用效果良好,为后续仰拱施工及栈桥设计提供了思路和方法。With the drilling-blasting construction as the research objective,the construction technology of tunnel invert is studied indepth.Combined with the construction technology,the invert trestle is studied,and through the analysis of advantages and disadvantages of the existing trestle,an invert construction solution with high safety,lower labor intensity and higher efficiency is proposed.Through detailed design calculations,a largespan invert trestle is developed,with an effective span of 36 m,which can satisfy the construction of three inverts and has been applied with good effect at several sites,providing ideas and methods for subsequent invert construction and trestle design.

关 键 词：钻爆法 仰拱 栈桥 

分 类 号：U455.4[建筑科学—桥梁与隧道工程] U448.18[交通运输工程—道路与铁道工程]