玉磨铁路隧道整体配套移动栈桥仰拱施工技术研究  

Study on Construction Technology of Inverted Arch of Yuxi-Mohan Railway Tunnel by Using the Integrated Supporting Movable Trestle

作　　者：陈秦泷 王庆建[2] 崔光耀[1] CHEN Qinlong;WANG Qingjian;CUI Guangyao(North China University of Technology,Beijing 100144,China;China Railway Tunnel Group,Nanning 530000,China)

机构地区：[1]北方工业大学,北京100144 [2]中铁隧道集团四处有限公司,南宁530000

出　　处：《高速铁路技术》2022年第5期107-110,共4页High Speed Railway Technology

基　　金：国家自然科学基金(52178378);中国铁路昆明局有限公司科技项目(K17 G43)。

摘　　要：为进一步确保隧道施工关键步骤仰拱施作安全高效的进行,本文依托玉磨铁路隧道工程,提出一种隧道整体配套移动栈桥仰拱施工新技术。研究结果表明:(1)该栈桥不仅有效解决了栈桥移动和施工工序相互干扰的问题,还实现了仰拱的快速安全施工;(2)经过结构验算,栈桥主梁和横梁端板连接螺栓均满足强度要求;(3)利用整体配套移动栈桥施作仰拱时模型定位精准便于浇筑,操作简单,节约人力物力,经济有效。研究成果可为隧道仰拱安全施工提供新型技术支持。In order to further ensure the safe and efficient construction of inverted arch,one of the key steps of tunnel construction,this paper,on the basis of Yuxi-Mohan Railway Tunnel Project,proposes a new technology for the construction of inverted arch by using the integrated supporting movable trestle.The results show that:(1)The trestle not only effectively solves the problem of mutual interference between trestle movement and construction process,but also realizes the rapid and safe construction of inverted arch.(2)The structural checking results verify that the connecting bolts of the main beam and cross beam end plate of the trestle meet the strength requirements.(3)When the integrated supporting movable trestle is used to construct the inverted arch,models can be accurately positioned,facilitating the pouring construction.This method is easy to operate,saves manpower and material resources,and is economical and effective.The research results can provide new technical support for the safe construction of tunnel inverted arch.

关 键 词：隧道工程 仰拱施工 新型栈桥 结构稳定性 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]