岩爆及蚀变岩不良地质条件下TBM卡机脱困施工技术

Construction Technology for TBM Card Machine Trapping under Unfavorable Geological Conditions of Rock Burst and Altered Rock

硬岩掘进机(Tunnel Boring Machine,TBM)+钻爆法是目前特长山岭隧道常用的施工方法。在不良地质情况下,硬岩掘进机极易发生卡机情况,严重时甚至会发生工程事故。为了应对上述随时可能发生的卡机情况,以在建的TBM法施工输水隧洞工程为背景,提出了一种在岩爆、蚀变岩等不良地质条件下,处理TBM卡机脱困的技术,重点阐述了处理要点、具体施工方法和控制流程。该施工技术的实施和TBM脱困的应用,为今后应对类似工程设备脱困提供了有价值的案例和参考。

With the rapid development of the economy and society,tunnel engineering is flourishing in China.Tunnel Boring Machine(TBM)combined with drilling and blasting method is currently a commonly used construction method for ultra long mountain tunnels.In adverse geological conditions,hard rock tunneling machines are prone to jamming,and in severe cases,engineering accidents may even occur.In order to cope with the possible jamming situation mentioned above,a technology for dealing with TBM jamming under adverse geological conditions such as rockburst and weathered rock is proposed based on the construction of water conveyance tunnels using the TBM method under construction.The key points of treatment,specific construction methods,and control processes are emphasized.The implementation of this construction technology and the application of TBM to overcome difficulties provide valuable cases and references for dealing with similar engineering equipment in the future.