土工基础

›› 2014, Vol. 28 ›› Issue (4): 59-61.

• 工程实录 • 上一篇    下一篇

软土地基深基坑工程不同围护结构的实测变形研究

藏光文   

  1. (上海勘测设计研究院，上海 200434)
  • 收稿日期:2014-04-14 出版日期:2014-06-20 发布日期:2014-08-20
  • 作者简介:臧光文（1962-），男，湖北天门人，高级工程师，研究方向为岩土工程研究及水利水电工程监测、检测。

Deformation Monitoring of Deep Excavation in Soft Soils with Different Supporting Structures

ZANG  Guangwen   

  1. （Shanghai Investigation Design and Research Institute, Shanghai 200434）
  • Received:2014-04-14 Online:2014-06-20 Published:2014-08-20

摘要： 由于城市建设用地稀缺，为了建设地铁、地下车库、地下商场等，经常在人口稠密、建筑林立、道路纵横交叉的城市中心区开挖深大基坑。基坑施工过程中，为了减小对周边环境的不利影响，必须控制基坑围护结构的侧向变形。总结了软土地基深基坑常用的围护型式和变形监测项目，结合实测数据分析了不同围护型式的变形规律，指出了不同围护型式的适用范围，对基坑设计及施工单位具有一定的借鉴意义。

关键词: 软土地基, 深基坑, 围护结构, 变形监测

Abstract: Due to the lack of available for the construction in urban area, large scale deep excavations in densely populated, closely adjacent to existing buildings and streets are common for the construction of metros, underground parking garages and underground shopping centers. To minimize the adverse effect induce from the deep excavation, the deformation of the supporting structures should be closely monitored. This paper summarizes the excavation supporting types encountered in the construction inspection projects and their deformation characteristics. Both advantages and disadvantages of each supporting type as well as their applicable conditions are introduced in the paper.

Key words: Soft Soils, Deep Excavations, Supporting Structures, Deformation Monitoring