土工基础

›› 2016, Vol. 30 ›› Issue (1): 64-67.

• 工程实录 • 上一篇    下一篇

基于FLAC3D的某深基坑桩锚支护圈梁侧向刚度分析

郝 玉，彭文祥，申海平   

  1. （中南大学地球科学与信息物理学院，长沙 410083）
  • 收稿日期:2015-02-10 出版日期:2016-02-20 发布日期:2016-03-02
  • 作者简介:郝 玉（1989-），男，硕士研究生，研究方向为地基处理。

Numerical Analysis of the Lateral Rigidity of the Waler in a Soldier Pile and Anchor Supported Deep Excavation

HAO Yu，PENG Wenxiang,  SHEN Haiping   

  1. (School of Earth Sciences and Information Physics, Central South University, Changsha 410083 )
  • Received:2015-02-10 Online:2016-02-20 Published:2016-03-02

摘要： 在深基坑桩锚式支护结构中，桩顶钢筋混凝土圈梁的空间效应对支护结构的变形和内力有着不同程度的影响。通过对长沙某深基坑桩锚支护结构圈梁水平位移与内力的现场监测，结合理论计算，并利用有限元软件FLAC3D模拟，研究分析了圈梁在桩锚支护结构中的作用效应，提出了圈梁影响刚度的简化计算方法，可供同类的工程设计参考。

关键词: 基坑, 圈梁, 侧向刚度, 水平位移, 内力, FLAC3D

Abstract: The spatial effect of the reinforced concrete waler system at the top of the soldier pile has different impacts on the lateral deflection as well as the internal force in the soldier pile and ground anchor supporting system in the deep excavation. The lateral deflection and the stress in the reinforced concrete waler of a soldier pileanchor supported deep excavation in Changsha are monitored and predicted through commercial software FLAC3D. The role of the rigidity of waler system in the soldier pileanchor supported system is investigated and the simplified rigidity analysis method is proposed for the engineering practitioners.  

Key words: Deep Excavations, Waler System, Lateral Rigidity, Horizontal Deflection, Internal Forces, FLAC3D