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本文以松本隧道的成功开挖为实例,阐述了大深沟断层群异常出水带的复杂情况,开挖的困难程度,及施工中遇到这些情况时的具体处理对策和措施。 文中,着重强调了地质探查在整个施工过程中起的重要作用以及综合利用探测钻孔的过程。对于整个隧道施工,地质探查除了对施工前的计划、预测和施工措施的制定进行指导外,在开挖过程中,隧道地质的再了解、核对及排水等许多辅助工法的施工也少不了地质探查的协助。
Taking the successful excavation of Matsumoto tunnel as an example, the paper elaborates the complicated situation of the outflow zone of Dashengou Fault Group, the difficulty of excavation and the specific treatment measures and measures in the event of these circumstances. The paper emphasizes the important role played by geological exploration in the whole process of construction and the process of comprehensive utilization of the exploration drilling. For the entire tunnel construction, geological exploration in addition to the pre-construction planning, prediction and construction of the measures to guide the development of the tunnel excavation process, the tunnel geological understanding, verification and drainage, and many other construction methods and ultimately, geological exploration assist.