以西北地区某地铁深基坑为工程背景,采用有限元方法,建立黄土地区地铁车站深基坑施工过程有限元分析模型,研究了不同工况下深基坑支护体系内力与变形变化规律,并将计算结果与现场监测成果进行对比分析,验证了基坑开挖支护方案的合理性。 Taking the deep foundation pit of a subway in the northwest as the engineering background, the finite element method is used to establish the finite element analysis model of the deep foundation pit construction process of the subway station in the loess area. The internal force and deformation of the deep foundation pit retaining system under different operating conditions are studied, The results of the calculation and field monitoring results are compared and analyzed to verify the rationality of excavation and support program.