紧邻地铁设施大型基坑工程施工方案研究

陈俊生; 刘叔灼; 莫海鸿; 王一兆

紧邻地铁设施大型基坑工程施工方案研究 English Version

(1.华南理工大学土木与交通学院，广东广州，510640；2. 亚热带建筑科学国家重点实验室，广东广州，510640)

详细信息

作者简介:
陈俊生(1979– )，男，广东广州人，博士，讲师，主要从事地下结构的教学与研究工作。

中图分类号: TU473
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出版历程
- 收稿日期: 2012-11-12
- 发布日期: 2012-11-12

Construction schemes for large excavations near subway facilities

(1. Department of Civil Engineering，South China University of Technology, Guangzhou 510640, China; 2. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China)

摘要

摘要: 以广州一紧邻地铁隧道的大型基坑工程为例，结合该基坑工程与地铁隧道的竖向及水平空间关系，介绍了紧邻地铁隧道大型基坑工程施工过程中需要注意的控制性因素，通过讨论基坑不同开挖顺序的优势和缺点，探讨了不同顺序的可行性。通过建立三维有限元模型，分别评价了两个施工方案对地铁隧道的影响。通过施工方案讨论及有限元分析，认为紧邻地铁隧道大型基坑工程施工方案应先施工与地铁隧道距离较远或不相关的基坑部分，以避免过早扰动地铁隧道周边的土体；在地铁隧道上方开挖，采用分段分块逐步推进的方式，充分利用地铁隧道结构自身的刚度；在地铁隧道两侧开挖，需注意不平衡开挖对产生的偏压影响。
- 深基坑工程 /
- 地铁设施 /
- 施工方案 /
- 三维有限元
Abstract: A large excavation in Guangzhou is taken as an example. Through the spatial relation between the excavation and subway tunnel, the control factors during its construction are introduced. By discussing their advantages and disadvantages, the feasibility of different excavation sequences is studied. A 3D finite element model is established to evaluate the effect of the excavation on the subway tunnel due to different construction schemes. The results indicate that the construction process the excavation should start from the section far away from the subway tunnel to avoid disturbing the soil surrounding the tunnel. Fort the construction over subway tunnel, the piecewise and block excavation method is favorable for controling the subway tunnel. For the construction at both sides of subway tunnel, the eccentric earth pressure due to unbalance excavation should be considered.
- deep excavation /
- subway facility /
- construction scheme /
- 3D FEM

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参考文献(8)

[1]	高广运, 高盟, 杨成斌, 等. 基坑施工对运营地铁隧道的变形影响及控制研究[J]. 岩土工程学报, 2010, 32(3): 453–459. (GAO Guang-yun, GAO Meng, YANG Cheng-bin, et al. Influence of deep excavation on deformation of operating metro tunnels and countermeasures[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(3): 453–459. (in Chinese))
[2]	陈忠汉, 程丽萍. 深基坑工程[M]. 北京: 机械工业出版社, 2001. (CHEN Zhong-han, CHENG Li-ping. Deep excavation engineering[M]. Beijing: China Machine Press, 2001. (in Chinese))
[3]	高盟, 高广运, 冯世进, 等. 基坑开挖引起紧贴运营地铁车站的变形控制研究[J]. 岩土工程学报, 2008, 30(6): 818–823. (GAO Meng, GAO Guang-yun, FENG Shi-jin, et.al. Control of deformation of operating subway station induced by adjacent deep excavation[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(6): 818–823. (in Chinese))
[4]	孔祥鹏, 刘国彬, 廖少明. 明珠线二期上海体育馆地铁车站穿越施工对地铁一号线车站的影响[J]. 岩石力学与工程学报, 2004, 23(5): 821–825. (KONG Xiang-peng, LIU Guo-bin, LIAO Shao-ming. Influence fo construction of Shanghai stadium transverse station of pearl line phase II on station of metro Line No.1[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(5): 821–825. (in Chinese))
[5]	李志高, 曾远, 刘国彬. 邻近地铁车站基坑开挖位移传递规律数值模拟[J]. 岩土力学, 2008, 29(1): 3104–3108. (LI Zhi-gao, ZENG Yuan, LIU Guo-bin. Numerical simulation of displacement transfer law of excavation adjacent metro station [J]. Rock and Soil Mechanics, 2008, 29(1): 3104–3108. (in Chinese))
[6]	王卫东, 吴江斌, 翁其平. 基坑开挖卸载对地铁区间隧道影响的数值模拟[J]. 岩土力学, 2004, 25(增刊2): 251–255. (WANG Wei-dong, WU Jiang-bin, WENG Qi-ping. Numerical modeling of affection of foundation pit excavation on metro tunnel[J]. Rock and Soil Mechanics, 2004, 25(S2): 251–255. (in Chinese))
[7]	谢弘帅. 紧贴运营地铁车站深基坑施工变形控制研究(博士学位论文)[D]. 上海: 同济大学, 2005. (XIE Hong-shuai. Study on displacement control of metro station due to ajacent deep excavation[D]. Shanghai: Tongji University, 2005. (in Chinese))
[8]	姚燕明, 孙巍. 深基坑开挖对共用连续墙的既有车站结构内力影响的空间分析[J]. 岩土工程学报, 2006, 28(增刊): 1411–1414. (YAO Yan-ming, SUN Wei. Spatial calculation analysis on internal forces of the existing metro stations having common walls with a deep pit excavation[J]. Chinese Jounal of Geotechnical Engineering, 2006, 28(S0): 1411–1414. (in Chinese))

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紧邻地铁设施大型基坑工程施工方案研究 English Version

作者简介: 陈俊生(1979– )，男，广东广州人，博士，讲师，主要从事地下结构的教学与研究工作。

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Construction schemes for large excavations near subway facilities

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作者简介:
陈俊生(1979– )，男，广东广州人，博士，讲师，主要从事地下结构的教学与研究工作。