地铁车站盖挖逆作施工中柱桩力学规律研究

摘要

Temporary vertical support system of Fumin Station Project of Shenzhen Metro Line No.7 is made up of the mid-dle pillar pile,it plays a crucial role for the own stability of foundation pit and compatible deformation of the upper struc-ture.Taking foundation pit project of Fumin Station construction with cut and cover reverse method as an example,three-dimensional finite element models are built based on ABAQUS software to simulate the construction process of dynamic sim-ulation.Through comparatively analyzes the results of numerical calculation and real-time monitoring data,it explores the space-time change law of the middle pillar pile’s axial force in the construction with cut and cover reverse method.It can provide a reference basis for similar projects.%深圳地铁7号线福民站工程临时竖向支撑系统由中柱桩构成，其对于基坑自身的稳定，以及上部结构的协调变形起着至关重要的作用。以福民站基坑工程盖挖逆作施工为例，建立三维有限元模型，基于 ABAQUS 软件对施工过程进行动态仿真模拟，对比分析数值计算结果及实时监测数据，揭示了盖挖逆作施工过程中柱桩轴力时空变化规律，为同类工程提供参考依据。