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对隧道的软弱破碎带围岩进行施工时,需要在开挖隧道之前,综合采用预报、支护、监测等综合施工技术进行软弱破碎带的处理。针对隧道软弱破碎带围岩施工处理技术展开探讨,并对隧道软弱破碎带的新奥法施工技术进行了相应的分析,新奥法隧道开挖技术一般应用于V类破碎带围岩;同时,超前支护结合了多项支护技术,新奥法开挖技术恰好可以满足超前支护的隧道稳定性。在进行监测方面,主要以监测围岩的变形为主。综合以上施工技术,结合实际中隧道软弱破碎带的施工处理,结果表明以上施工技术可以有效地保证隧道的稳定性。
For the construction of surrounding rock with weak broken zone in the tunnel, it is necessary to comprehensively adopt the comprehensive construction technology such as forecast, support and monitoring before the tunnel excavation to deal with the weak broken belt. Aiming at the construction and treatment technology of the surrounding rock in the weak broken zone of the tunnel, the new Austrian construction technology of the soft broken zone in the tunnel is analyzed correspondingly. The tunneling technology of the New Austrian Tunneling Method is generally applied to the surrounding rock of V type broken zone; meanwhile, Advanced support combines a number of support techniques, the new Austrian law excavation technology just to meet the advanced support of the tunnel stability. In monitoring, mainly to monitor the deformation of the main rock. Combined with the above construction techniques, combined with the actual construction of the tunnel weak and broken zone, the results show that the above construction techniques can effectively ensure the stability of the tunnel.