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分析了双线铁路隧道在颇风化岩体中进洞的难度，提出了“设棚法”可作为解决这一难题的新途径，通过实践证实了这一方法的可行性。文章详细介绍“设棚法”进洞的施工过程及其优越性。
Based on the analysis of the difficulty of double-track railway tunneling into quite weathered rock mass, the paper puts forward a new method to solve this problem, and proves the feasibility of this method. The article introduces in detail the construction process and its superiority of “shedting law” into the hole.