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本文以贵州省仁怀至赤水高速公路十六合同段隆兴2号隧道施工为实例,具体介绍了隧道出口浅埋段山体开裂错落、初期支护沉降开裂变形病害治理的施工方案,此病害治理方案可保护原有生态环境、减少边仰坡开挖、提高洞内初期支护的承载力、控制初期支护的沉降变形,同时更有效地保证施工安全。
In this paper, the tunnel construction of Longxing No.2 between Renhuai and Chishui Expressway in Section 16 of Lishui Expressway in Guizhou Province is taken as an example to introduce the construction plan of cracking and deforming at the shallow buried section of tunnel exit and the treatment of settlement and deforming deformation at the initial stage. Protect the original ecological environment, reduce the excavation of the side elevation slope, enhance the bearing capacity of the initial support in the cave, control the settlement deformation of the initial support, and ensure the construction safety more effectively.