土工基础

›› 2012, Vol. 26 ›› Issue (5): 93-95.

• 工程实录 • 上一篇    下一篇

浅谈某深基坑的水平位移监测技术

吴其泰，程 康，刘 阳，胡冬冬   

  1. （武汉理工大学土木工程与建筑学院， 湖北武汉 430070）
  • 收稿日期:2012-03-02 出版日期:2012-10-20 发布日期:2012-10-27
  • 作者简介:吴其泰(1987-)，男，武汉理工大学土建学院研究生，研究方向为地下结构工程。

Application of Horizontal Displacement Monitoring Technology to a Deep Excavation

WU Qitai, CHENG Kang, LIU Yang, HU Dongdong   

  1. (Wuhan University of Technology,Wuhan 430070,China)
  • Received:2012-03-02 Online:2012-10-20 Published:2012-10-27

摘要： 通过对一个典型深基坑的结构分析，提出了水平位移的监测方法；在建立基坑监测临时坐标系的基础上，采用坐标转换建立了独立坐标系；监测结果表明水平位移累计临界值为30 mm。此方法适合于周边环境比较复杂的矩形或近似矩形基坑，对于圆形或其他不规则形状的基坑不宜采用。

关键词: 基坑工程, 独立坐标系, 自由设站, 位移监测

Abstract: This paper proposes a horizontal displacement monitoring method based on structural analysis of a typical braced excavation for deep foundation. Using translation of coordinates, the temporary coordinate system for excavation monitoring is converted to an independent coordinate system with the datum point located at a corner of the foundation pit.  Monitoring results show that accumulated critical value of the horizontal displacement is 30mm. This method which is suitable for the more complex surrounding environment of the rectangular or nearly rectangular pit should not be used for circular pits or pits with other irregular shapes.

Key words: Excavation Engineering, Independent Coordinate System, Free Stationing, Displacement Monitoring