摘要
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。
Temporary vertical support system of Fumin Station Project of Shenzhen Metro Line No. 7 is made up of the middle pillar pile,it plays a crucial role for the own stability of foundation pit and compatible deformation of the upper structure. Taking foundation pit project of Fumin Station construction with cut and cover reverse method as an example,threedimensional finite element models are built based on ABAQUS software to simulate the construction process of dynamic simulation. 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.
出处
《铁道建筑技术》
2016年第2期54-56,83,共4页
Railway Construction Technology
基金
国家自然科学基金创新研究群体科学基金(51321065)
天津市应用基础与前沿技术研究计划青年项目(15JCQNJC08000)
关键词
盖挖逆作法
数值分析
中柱桩
轴力
cut and cover reverse method
numerical analysis
the middle pillar pile
axial force
