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修建公路隧道,其施工方法很多,大体有:明挖、盾构、沉井、沉埋、顶推、矿山法以及目前尚在推广运用于地下工程的新奥法理论等。在施工中具体采用那一种方法,将取决于地质、设备、投资、隧道设计形式、施工工期以及施工单位技术能力等。目前在我省,乃至全国,在已建的中、短山岭公路隧道中,使用矿山法施工的占相当比重。甚至目前采用新奥法施工的隧道,在遇到地质极不良地段时,仍使用矿山法施工。因此笔者认为,运用矿山法修建公路隧道,在短期内还不会有大的改
The construction of highway tunnels has many construction methods, such as digging, shield, caisson, burying, pushing, mining law and the new Austrian law theory that is still being applied in underground engineering. The specific method used in construction will depend on the geology, equipment, investment, the design of the tunnel, the construction period, and the technical capabilities of the construction unit. At present, in our province and even in the whole country, a considerable proportion of the medium and short mountain-hill highway tunnels have been constructed using the mining method. Even the tunnels that are currently being constructed using the new Austrian law still use the mine construction method when encountering extremely poor geological conditions. Therefore, I believe that the use of mining law to build highway tunnels in the short term there will be no big change