既有地下结构对基坑位移的遮拦效应研究

刘燕; 聂淑敏; 刘涛

doi:10.11779/CJGE2014S2070

既有地下结构对基坑位移的遮拦效应研究 English Version

刘燕^{1, 2},
聂淑敏³,
刘涛⁴

1. 济南大学土木建筑学院,山东济南 250022;
2. 山东省城市地下工程支护及风险监控工程技术研究中心,山东济南 250022;
3. 济南大学资源与环境学院,山东济南 250022;
4. 中国海洋大学环境科学与工程学院,山东青岛 266100

基金项目: 济南市科技计划资助项目（201201142）; 国家自然科学基; 金项目（51208228）

详细信息

作者简介:
刘燕(1978- ),女,博士,副教授,主要从事地下工程方面的研究。E-mail: liuyan322@163.com。

计量
- 文章访问数: 0260
- HTML全文浏览量: 0
- PDF下载量: 0225
出版历程
- 收稿日期: 2014-07-27
- 发布日期: 2014-07-27

Sheltering effect of existing subsurface structures on displacement of retaining wall of foundation pits

LIU Yan^{1, 2},
NIE Shu-min³,
LIU Tao⁴

1. School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China;
2. Engineering Technology Research Center on Urban Underground Engineering Support and Risk Monitoring of Shandong Province, Jinan 250022;
3.School of Resources and Environment, University of Jinan, Jinan 250022, China;
4.College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China

摘要

摘要: 城市发展使得基坑工程周边环境越来越复杂,既有地下结构物的保护问题已经引起很多工程界人士的重视,但是既有结构物的存在也同样改变了基坑位移场,因此,在基坑开挖过程中应引起重视,正确认识地下建筑物对位移场的遮拦作用对基坑支护设计时确定基坑的保护等级、施工过程中保护临近已建地铁车站及周围建筑的安全显然具有重要的意义。通过机理分析,结合敏感性理论,发现既有地下结构对基坑水平位移的遮拦效应明显,特别是当地下建筑物与基坑围护墙间距在0.5H时,遮拦作用最为明显,而当距离大于2H后,遮拦效应可以忽略。
- 基坑 /
- 位移场 /
- 地下建筑物
Abstract: The urban development makes the surrounding environment more and more complex, and a lot of people pay their attention to protect the existing underground structures. However, the existence of the existing underground structures changes the displacement field. Therefore, the excavation process should be highlighted, and it is of great significance to correctly understand the sheltering effect of underground buildings on displacement field for determining the protection class of foundation pits for their supporting design and for protecting the safety of nearby metro stations and the surrounding buildings during the construction. Combining the sensitivity theory with the mechanism analysis, it is found that the sheltering effect is the most obvious when the spacing between the underground buildings and the retaining wall of foundation pits is 0.5H, and it can be ignored when the distance is more than 2H.
- foundation pit /
- displacement field /
- underground building

HTML全文

参考文献(6)

[1]	刘燕. 地铁换乘枢纽后建车站施工影响研究[D]. 上海:同济大学, 2007. (LIU Yan. Study on construction influence of station built behind the metro transfer hub[D]. Shanghai: Tongji University, 2007. (in Chinese))
[2]	王洪新. 基坑施工对紧邻的正在运营的地铁车站的影响及其相应的变形控制技术研究[D]. 上海: 同济大学, 2003. (WANG Hong-xin. Influence for the construction of foundation pit to adjacent metro station being operated and study of its corresponding deformation control technology[D]. Shanghai: Tongji University, 2003. (in Chinese))
[3]	王毅斌. 平行换乘节点车站变形控制研究[D]. 上海: 同济大学, 2005. (WANG Yi-bin. Deformation control study of parallel transfer node station[D]. Shanghai: Tongji University, 2005. (in Chinese))
[4]	董海斌. 平行地铁车站施工中的相互影响研究[D]. 上海: 同济大学, 2004. (DONG Hai-bin. Study of interaction in the construction of parallel metro station[D]. Shanghai: Tongji University, 2004. (in Chinese))
[5]	章光, 朱维申. 参数敏感性分析与试验方案优化[J]. 岩土力学, 1993, 14(1): 51-58. (ZHANG Guang, ZHU Wei-shen. Parameter sensitivity analysis and test scheme optimization[J]. Rock and Soil Mechanics, 1993, 14(1): 51-58. (in Chinese))
[6]	朱维申, 章光. 节理岩体参数对围岩破损区影响的敏感性分析[J]. 地下空间, 1994, 14(1): 11-12. (ZHU Wei-shen, ZHANG Guang. Sensitivity analysis of jointed rock parameter to influence of surrounding rock damaged area[J]. Underground Space, 1994, 14(1): 11-12. (in Chinese))

施引文献

资源附件(0)

计量

文章访问数:
HTML全文浏览量: 0
PDF下载量:
被引次数: 0

既有地下结构对基坑位移的遮拦效应研究 English Version

作者简介: 刘 燕(1978- ),女,博士,副教授,主要从事地下工程方面的研究。E-mail: liuyan322@163.com。

计量

出版历程

Sheltering effect of existing subsurface structures on displacement of retaining wall of foundation pits

计量

出版历程

目录

作者简介:
刘燕(1978- ),女,博士,副教授,主要从事地下工程方面的研究。E-mail: liuyan322@163.com。