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介绍了处理偏压段隧道塌方,采用高压管棚法、注浆种类与效果及管棚法的施工步骤流程及小导管超前注浆。
Describes the treatment of biased tunnel collapse, the use of high-pressure pipe shed method, the type and effect of grouting and pipe shedding process steps and small pipe advance grouting.