铁路隧道浅埋偏压施工技术的应用

Application of Construction Technology of Shallow Buried Railway Tunnel under Unsymmetrical Pressure

结合老中铁路芬果二号隧道施工的实际情况,对浅埋偏压软弱围岩段施工技术进行了深入分析,包括超前、开挖、支护、防排水、围岩监测、二衬等,该隧道浅埋段安全顺利地完成所有的施工工序,具有良好的参考借鉴价值。

Combined with the actual construction situation of Fenguo No.2 tunnel of Laos-China Railway, the construction technology of shallow buried section in weak surrounding rock under unsymmetrical pressure is analyzed in depth, including advanced support, excavation, waterproof and drainage, surrounding rock monitoring, secondary lining, and etc. The construction process used in the shallow buried section of the tunnel is completed safely and smoothly, which has a good reference value.