长大管棚超前支护穿越Ⅵ级围岩施工技术

Construction Technique of Long and Large Pipe Shed Advanced Bolt Support Penetrating through Grade Ⅵ Surrounding Rock

文章结合洛湛铁路YQ9标清水隧道出口大管棚工程实例,并根据大管棚施工技术规范,简要分析和总结了长大管棚在Ⅵ级围岩中的施工技术,为同类施工提供参考。

Based on the engineering practices of large pipe shed in the exit of Qingshui Tunnel,Contract No. YQ9 on LuoZhan Railway,and the technical specification of large pipe shed construction,the Paper briefly analyzes and summarizes the construction technique of large and long pipe shed that penetrates through the Grade Ⅵ surrounding rock,which provides reference for similar works.