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Analysis of Pile-Support Supporting Structure Internal Force in the Open Cut Section of Metro Tunnels

Based on the open excavation area from Yulu Station to Wulidian Station in Chongqing subway circle lines, the finite element software Ansys was used to establish three-dimensioned model to calculate and analyze the mechanical characteristic of the pile-support supporting. By simulating the construction process of subway tunnel, the characteristics of supporting structure were analyzed from the stress and displacement of pile and supporting. It can summarize that the internal force characteristics of pile-support supporting conform to the requirements of the construction safety.