新型铁路隧道扩拱施工技术的研究与实践  

Research and Practice on Arch Expansion Construction Technology of New Type Railway Tunnel

作　　者：张爱武 蒋松 ZHANG Ai-wu;JIANG Song(China Civil Engineering Construction Corporation,Beijing 100038,China;China Railway 12th Bureau Group Co.Ltd.,Taiyuan 030000,China)

机构地区：[1]中国土木工程集团有限公司,北京100038 [2]中铁十二局集团有限公司,太原030000

出　　处：《工程建设与设计》2025年第4期130-132,共3页Construction & Design for Engineering

摘　　要：基于铁路隧道的工程概况及水文地质情况,选择了隧道主洞扩拱施工的技术方案,深入研究了隧道扩拱施工专项技术,具体包括隧道开挖的预加固措施、拱架的安装、湿喷混凝土工艺、隧道主洞扩拱方案以及二次衬砌的施作等,并针对新型铁路隧道的扩拱施工方案提出了一系列施工质量保证措施。Based on the engineering situation and hydrogeology of railway tunnel,the technical scheme of arch expansion construction of tunnel main hole is selected,and the special technology of tunnel arch expansion construction is deeply studied,including pre-reinforcement measures of tunnel excavation,construction methods of mechanical excavation,installation of arch frame,wet shotcrete technology,arch expansion scheme of tunnel main hole and application of secondary lining.Then a series of construction quality assurance measures are put forward for the construction scheme of new railway tunnel arch expansion.

关 键 词：铁路隧道 扩拱施工 预加固措施 机械开挖 质量保证措施 

分 类 号：U457.6[建筑科学—桥梁与隧道工程]