Wei Xiong
Abstract
Taking the excavation of a shield tunnel in Shanghai as a example,based on the rebound test results of undisturbed soil in the unloading stress path,this paper discussed the deformation of soil under unloading,and analyzed the influence depth of unloading during shield tunnel excavation.
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Taking the excavation of a shield tunnel in Shanghai as a example,based on the rebound test results of undisturbed soil in the unloading stress path,this paper discussed the deformation of soil under unloading,and analyzed the influence depth of unloading during shield tunnel excavation.
Key concepts: Excavation, Shield, Geotechnical engineering, Stress path, Geology, Deformation (meteorology), Lateral earth pressure, Mining engineering