[1]任建喜,高立新,刘 杰,等.深基坑变形规律现场监测[J].西安科技大学学报,2008,(03):445-449.[doi:10.3969/j.issn.1672-9315.2008.03.010]
 REN Jian-xi,GAO Li-xin,LIU Jie,et al.In-situ monitoring on deformation laws of deep foundation pit[J].Journal of Xi'an University of Science and Technology,2008,(03):445-449.[doi:10.3969/j.issn.1672-9315.2008.03.010]
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深基坑变形规律现场监测()
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2008年03期
页码:
445-449
栏目:
出版日期:
2008-09-30

文章信息/Info

Title:
In-situ monitoring on deformation laws of deep foundation pit
文章编号:
1672-9315(2008)03-0445-05
作者:
任建喜高立新刘 杰张 琨池 鹏
西安科技大学 建筑与土木工程学院,陕西 西安 710054
Author(s):
REN Jian-xiGAO Li-xin LIU JieZHANG KunCHI Peng
College of Architecture and Civil Engineering,Xi'an University of Science and Technology, Xi'an 710054,China
关键词:
深基坑 基坑变形 现场监测 支护形式
Keywords:
deep foundation pit deep foundation deformation in-situ monitoring maintenance form
分类号:
TU47
DOI:
10.3969/j.issn.1672-9315.2008.03.010
文献标志码:
A
摘要:
给出了北京地铁某车站深基坑围护和变形监测方案,对基坑变形规律进行了现场监测研究,重点分析了基坑的水平变形、锚索内力和钢支撑轴力变化规律.结果表明,基坑开挖的深度与无支撑暴露的时间对围护桩的变形、锚索内力及钢支撑的轴力影响较大.随着基坑开挖深度的增加和钢支撑的施加,围护桩的变形形态由向坑内的前倾型曲线逐渐变为弓形.围护桩的水平位移、钢支撑的轴力也随着基坑开挖深度的增加而增大.随着钢支撑的施加,围护桩水平位移及锚索内力都趋于稳定,说明钢支撑、围护桩和预应力锚索联合支护形式能够有效地控制基坑变形,保证地铁车站安
Abstract:
The supporting plan and deformation monitoring plan are given and the in-situ monitoring study is completed on the foundation pit deformation, especially on the horizontal deformation of the foundation pit,the axial force of anchorage cable and the steel support. The result shows that the excavation depth and the exposed time without support of the foundation pit affect much on the deformation of the retaining piles,the tension force of the cables and the axial force of steel support. With the increment of excavation depth and the application of steel support, the deformation state of the retaining piles gradually develops from the anteverted curve towards foundation pit to bow curve. The horizontal deformation of the retaining piles and the axial force of the steel support increase with the increment of excavation depth. With the application of steel support, the horizontal deformation of the retaining piles and the tension force of cables become steady. The multiplex supporting plan consists of steel support,retaining piles and pre-stressed anchorage cable can control the deformation efficiently and assure a safe construction of subway station.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2007-11-15 责任编辑:杨忠民 基金项目:教育部科学技术研究重点项目(207119); 陕西省教育厅自然科学专项科研项目(08JK362) 作者简介:任建喜(1968-),男,陕西西安人,教授,博导,主要从事岩土工程方面的教学及研究工作.
更新日期/Last Update: 2008-09-30