Research on the Influence of Excavation of Irregular Deep Foundation Pit on Exist-ing Subway Station
Based on the foundation pit engineering of No.3 entrance and exit of Sanshibu Station on Hefei Rail Transit Line 2,the influence of foundation pit excavation process on the existing station is simulated,and the stress and deformation of foundation pit supporting structure and station structure are comprehensively analyzed.The numerical simulation results show that the deformation of foundation pit supporting piles is in a safe range;the deformation of the joint section between the original station supporting pile and the station side wall is coordinated;the constraint effect of the station roof on the deformation of the existing supporting pile is obvious;and the excavation of the foundation pit has little influence on the existing station.
foundation pitsubway stationnumerical simulationhorizontal displacementl
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