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文章结合大管棚超前注浆预支护在石川隧道施工的应用,全面系统地总结了大管棚的工艺流程和质量控制关键技术,为软弱破碎围岩地段修筑隧道提供了重要施工经验。
Combining with the application of pre - support of large pipe roof in Ishikawa tunnel construction, this paper comprehensively and systematically summarizes the key technologies of the process flow and quality control of large pipe shed, and provides important construction experience for tunnel construction in weak broken rock.