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1主要技术性能结合土工离心模拟试验、数值模拟计算,研究软流塑地层隧道“大管棚+小导管超前预注浆法”施工的地层移动规律和对应的地表沉降量,以及管棚法施工的设计参数、施工工法工艺等;研究采用“水平旋喷法”的可行性及对应的地表沉降规律,水平旋喷法的设计参数、施工方法
1 Main technical performance Combined with geotechnical centrifuge simulation test and numerical simulation calculation, the strata movement rule and the corresponding ground settlement amount of the construction of “soft pipe plastic tunnel + pre-grouting by small pipe” are studied, The design parameters of the construction method and so on. The feasibility of “horizontal jet method” and the corresponding law of surface subsidence, the design parameters of the horizontal jet method and the construction method