Analysis of the Influence on the Existing Structure of the Subwayunder the Synergistic Effect of the Upper Cover and the Foundation Pit
In this paper,Midas gts NX finite element analysis software is used to numerically calculate and analyze the axial force,bending moment and displacement of the throat area of the car depot during the whole construction process.The simulation analysis results show that in the granite stratum,the structural deformation of the throat area mainly occurs in the construction stage of the upper cover,and the vertical de-formation of the structure reaches-2.37 mm.The foundation pit construction has a weak influence on the deformation of the existing struc-ture,and the force mainly comes from the influence of the axial force of the frame column and the bending moment of the frame beam under the construction condition of the upper cover.
Metro depotUpper coverFoundation pitStructural deformationFinite element
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