杭州地铁新塘路、景芳路交叉口工程深基坑监测分析

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (933 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要对杭州地铁新塘路、景芳路交叉口深基坑开挖过程中的地下连续墙墙体深层水平位移、钢支撑轴力、地表沉降和地下水位等监测数据进行分析,得出了一些有价值的结论与监测建议。实测表明：土体的深层水平位移可在一定程度上反应墙体深层水平位移；不同墙体测斜孔的测斜数据差异与其局部土质分布有关；地表沉降程度和墙体深层水平位移规模有较大联系；基坑地下水位的异常变动会伴随着邻近基坑地表的沉降；基坑监测在开挖初期重点监测轴力,开挖后期重点监测墙体深层水平位移；提高轴力的监测频率是加强基坑安全施工的可行手段。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	丁智
	王达
	虞兴福
	王金艳
	蒋吉清

关键词 ：深基坑, 监测, 地下连续墙, 水平位移, 轴力

Abstract：By analyzing the monitoring data of an underground deep foundation pit at Xintang Road-Jingfang Road cross of Hangzhou metro, including horizontal displacement of diaphragm wall, axial force of steel bracing, ground settlement and groundwater fluctuation etc., some valuable conclusions and suggestions are obtained. It is shown that the horizontal displacement of soils is one of the most important reasons that lead to that of wall. The difference between the monitoring data of different walls is concerned with the soil texture. The degree of ground settlement and the horizontal displacement are closely related. Unusual change of the groundwater in foundation pit always results in subsidence of neighboring ground. Before excavation, the axial force of steel bracing should be paid more attention to, and the horizontal displacement should be monitored after excavation. The increasing frequency of monitoring axial force is a good way to ensure construction safety.

Key words： deep foundation pit monitoring diaphragm wall horizontal displacement axial force

收稿日期: 2013-06-18

TV473.2

基金资助:国家自然科学基金项目（51278463）

作者简介: 丁智(1983- )，男，博士研究生，2007年毕业于浙江大学岩土工程专业，现任讲师，主要从事轨道交通施工及运营对周边环境影响方面的教学和科研工作。E-mail: dingz@zucc.edu.cn。

引用本文:

丁智, 王达, 虞兴福, 王金艳, 蒋吉清. 杭州地铁新塘路、景芳路交叉口工程深基坑监测分析[J]. 岩土工程学报, 2013, 35(zk2): 445-451. DING Zhi, WANG Da, YU Xing-fu, WANG Jin-yan, JIANG Ji-qing. Monitoring and analysis of deep foundation pit at Xintang Road-Jingfang Road cross of Hangzhou metro. Chinese J. Geot. Eng., 2013, 35(zk2): 445-451.

链接本文:

http://manu31.magtech.com.cn/Jwk_ytgcxb/CN/ 或 http://manu31.magtech.com.cn/Jwk_ytgcxb/CN/Y2013/V35/Izk2/445

[1] O'ROURKE T D. Ground movements caused by braced excavations[J]. Journal of the Geotechnical Engineering Division, ASCE, 1981, 107(9): 1159-1178.
[2] LONG M. Database for retaining wall and ground movements due to deep excavations[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2001, 127(33): 203-224.
[3] MOORMANN C. Analysis of wall and ground movements dueto deep excavations in soft soil based on a new worldwide database[J]. Soils and Foundations, 2004, 44(1): 87-98.
[4] 徐中华. 上海地区支护结构与主体地下结构相结合的深基坑变形性状研究[D]. 上海: 上海交通大学, 2007. (XU Zhong-hua. Deformation behavior of deep excavations supported by permanent structure in Shanghai soft deposit[D]. Shanghai: Shanghai Jiaotong University, 2007. (in Chinese))
[5] 杨有海, 王建军, 武进广, 等. 杭州地铁秋涛路车站深基坑信息化施工监测分析[J]. 岩土工程学报, 2008, 30(10): 1550-1554. (YANG You-hai, WANG Jian-jun, WU Jin-guang, et al. Informationized construction monitoring analysis of deep foundation pit for Qiutao Road Station of Hangzhou Metro[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(10): 1550-1554. (in Chinese))
[6] 张忠苗, 赵玉勃, 吴世明, 等. 过江隧道深基坑中SMW工法加钢支撑维护结构现场监测分析[J]. 岩石力学与工程学报 2010, 29(6): 1270-1278. (ZHANG Zhong-miao, ZHAO Yu-bo, WU Shi-ming, et al. In-situ monitoring analysis of retaining structures of SMW piles plus steel support in deep foundation pit of river-crossing tunnel[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(6): 1270-1278. (in Chinese))
[7] 张雪婵, 龚晓南, 尹序源, 等. 杭州庆春路过江隧道江南工作井监测分析[J]. 岩土力学, 2011, 32(增刊1): 488-494. (ZHANG Xue-chan, GONG Xiao-nan, YIN Xu-yuan, et al. Monitoring analysis of retaining structures for Jiannan foundation pit of Qingchun road river-crossing tunnel in Hangzhou[J]. Rock and Soil Mechanics, 2011, 32(S1): 488-494. (in Chinese))