东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (3): 444-447.DOI: -

• 论著 • 上一篇    下一篇

沈阳某超深基坑支护系统监测分析

张俊;朱浮声;王助;付殿武;   

  1. 东北大学资源与土木工程学院;沈阳市建筑研究院;东北大学基建管理处;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    教育部高等学校博士学科点专项科研基金资助项目(200801451107)

Analysis of lasting monitoring results for design/construction of supporting system of a deep foundation in shenyang

Zhang, Jun (1); Zhu, Fu-Sheng (1); Wang, Zhu (2); Fu, Dian-Wu (3)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) Shenyang Research Institute of Construction, Shenyang 110015, China; (3) Capital Construction, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Published:2013-06-20
  • Contact: Zhang, J.
  • About author:-
  • Supported by:
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摘要： 通过现场监测的方法,对沈阳某超深基坑的支护设计进行了研究.结果表明:该超深基坑采用桩锚支护方案,总体可行,但支护结构变形过大,安全储备不足,类似工程应采取相应措施来提高支护设计的安全性;附近地铁隧道开挖,对基坑稳定影响很小,支护设计可不予考虑;地基土冻胀对该基坑稳定性的影响不可忽略,是沈阳越冬基坑工程所要考虑的一个因素.研究结果为沈阳地区的超深基坑工程设计和施工提供了重要参考.

关键词: 基坑工程, 桩锚支护, 监测, 冻胀, 沈阳

Abstract: A lasting in-situ monitoring was done to investigate the design of the supporting system for a very deep foundation pit in Shenyang. The results showed that the design applying an anchor pile system to the foundation pit is feasible on the whole, though the anchor piles are overdeformed somewhat, thus resulting in insufficient safty factors. Taking appropriate measures is therefore necessary to improve the safty of anchor pile supporting system for similar foundation projects. The excavation for a subway tunnel in the vicinity of the foundation pit affects the pit little, so it is negligible in the design of such a supporting system. However, the effects of frost heaving of foundation soil on the stability of foundation pit is innegligible, which is an important factor must be taken into account in winter for the foundation pit projects in Shenyang. The analysis of the monitoring results is available to provide the reference for both the design and construction of very deep foundation pit projects in Shenyang.

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