Numerical Simulation and Field Monitoring Analysis for Deep Foundation Pit Construction of Subway Station

To investigate the effect of deep foundation pit excavation on stability retaining structure, a subway station in city Jinan was selected as project, and FLAC3D-based three dimensional model developed for numerical simulation. The horizontal displacement axial force support, vertical column were studied compared to collected data from field. findings indicate that when is excavated, maximum deformation structure progressively decreases top, distortion gradually rises, final around 17 meters deep. In each layer largest support located first reinforced concrete support; uplift bottom caused by soil unloading plays primary role column, exhibits an upward trend under all construction conditions. When measured data, generated are comparable fluctuation extremely consistent. this article may give technical direction development stations with engineering basis.