The modern subway system has greatly alleviated the urban traffic congestion. However, it is difficult to avoid crossing paths with deformation-sensitive structures, such as high-speed railways and bridges, during subway construction. Based on the subgrade project of the Xulan High-Speed Railway under Xi’an Metro Line 1 in Shaanxi, China, this study performs numerical modeling to examine the dynamic load factors generated by high-speed railway operation and analyzes the disturbance and vibration effects of subway shield tunneling on soil layers with different stiffness. As the elastic modulus increases, the vibration response of the structure becomes weaker, which means that the disturbance effect on the soil becomes smaller. The refined simulation analysis of the highspeed rail dynamic load and shield tunneling provides valuable insight for theoretical application and engineering practice, especially regarding the management of disturbances caused by subway shield tunneling on surrounding structures.

现代地铁系统极大地缓解了城市交通拥堵。然而，地铁施工过程中很难避免与高铁、桥梁等变形敏感结构的路径交叉。本研究以陕西西安地铁一号线徐兰高铁路基工程为背景，通过数值模拟研究高速铁路运营产生的动荷载因素，分析路基扰动和振动效应。不同刚度土层上的地铁盾构掘进。随着弹性模量的增加，结构的振动响应变弱，这意味着对土体的扰动作用变小。高铁动载和盾构施工的精细仿真分析为理论应用和工程实践提供了宝贵的见解，特别是在地铁盾构施工对周围结构造成的扰动管理方面。