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以北京某大型地铁换乘枢纽站工程为背景,运用Midas-GTS软件建立三维数值分析模型模拟新线车站基坑开挖及主体结构施作过程,通过计算得到了后建车站施工对既有运营地铁车站结构及轨道变形的影响,分析表明,施工影响的大小与基坑开挖面距既有车站结构的距离及对称性有关。
Taking the project of a large subway interchange hub in Beijing as the background, the Midas-GTS software was used to establish the three-dimensional numerical analysis model to simulate the excavation of the foundation pit of the new railway station and the main structure construction process. The construction of post- Subway station structure and track deformation, the analysis shows that the size of the impact of construction and excavation pit distance from the existing station structure and the symmetry of the distance.