铁道标准设计Issue(1)：84-87,4.
深基坑围护结构内支撑轴力的监测及分析
Monitoring and Analysis for Axial Force of Inner Supports of Deep Foundation Pit
牟亚洲1
作者信息
- 1. 中铁十三局集团第二工程有限公司,广东深圳518083
- 折叠
摘要
Abstract
This paper discusses the stress variation characteristics of the axial force of inner supports of foundation pit and the method of information feedback by monitoring and analyzing the axial force. The inner supports of foundation pit at Lianhuaxi Station of Bid Section 2223 of Shenzhen Metro are taken as a practical example. The results of monitoring and analyzing shows that the axial force of inner supports increases stably with time; and that the axial force of the steel supports increases quickly and reaches the max. after being erected and then it tends towards stabilization. Therefore, the abrupt change of axial force gained through monitoring has an effect on information feedback of abnormalities of foundation pit. There are relatively large stresses in the supports erected at the middle and the lower part of the foundation pit, and the axial force of the supports erected latest at the bottom of the pit is larger too. The stresses of the inclined supports are less than that of the straight supports as a whole, and the stresses level on the short supports and long supports have no significant difference. This can play a certain directive role in construction of similar project from now on.关键词
深基坑/围护结构/内支撑/监测Key words
deep foundation pit/ supporting structure/ inner support/ monitoring分类
交通工程引用本文复制引用
牟亚洲..深基坑围护结构内支撑轴力的监测及分析[J].铁道标准设计,2012,(1):84-87,4.
