Based on a section of Xi'an No. five subway, the FLAC3D differential software is used to simulate the process of shield tunnel. The surface deformation after tunnel excavation, the disturbance law of ground deformation, and the deformation of the tunnel are studied. The influence of tunnel excavation on different depth strata is studied by 3D numerical simulation. And some conclusions are drawn.%以西安五号线地铁某区间工程为依托,利用FLAC3D[1]差分软件模拟盾构过程,研究隧道开挖后地表变形及地层变形的扰动规律,以及隧道自身变形情况.通过三维数值模拟,研究隧道开挖对不同深度地层的影响.并得出了有关结论.
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