新建基坑工程对既有地铁车站的影响及对策

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (845 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Abstract：Research purposes： A new foundation excavation is located in the safety protection zone of existing subway, the distance between them is about 2.0 m, the influence during the process of the new foundation excavation on the subway structure is inevitable. For estimating the influence, a FEM model is built to compute the influence of the new foundation excavation on the existing subway station through the FEM software ANSYS，furthermore the targeted counter measures is adopted.
Research conclusions：(1) The influence of the new foundation excavation on the subway structure is significant, especially during the process of the foundation excavation and rainfall. (2) The influence on the subway station is largest when the foundation excavation is excavated to the bottom, the vertical displacement is 26.3 mm, and the horizontal displacement is 17.8 mm. (3) During the excavating, process the measures must be taken to reduce the influence to make sure that the subway station is safe. (4) The conclusions can be used in the similar project.

Key words： Key words: subway station foundation excavation FEM approaching construction

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	GUO Lei

Cite this article:

GUO Lei.

The Influence of New Foundation Excavation on the Existing Subway Stations and Its Countermeasures

[J]. 铁道工程, 2015, 32(2): 109-.

URL:

http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2015/V32/I2/109

［1］刘国彬，黄院雄，侯学渊. 基坑工程下已运行地铁区间隧道上抬变形的控制研究与实践［J］.岩石力学与工程学报，2001 (2): 202-207.

Liu Guobin， Huang Yuanxiong， Hou Xueyuan. The Prediction and Control of Rebound Deformation of the Existed Tunnels Right under Excavation［J］. Chinese Journal of Rock and Soil Mechanics and Engineering，2002(2):202-207.

［2］张志强，何川. 深圳地铁隧道邻接桩基施工力学行为研究［J］. 岩土工程学报，2003（2）：204-207.

Zhang Zhiqiang，He Chuan. Study on the Mechanical Behavior of a Metro Tunnel Construction Adjacent to Existing Pile Foundations in Shenzhen［J］. Chinese Journal of Geotechnical Engineering，2003（2）：204-207.

［3］凌昊，仇文革，孙兵，等. 双孔盾构隧道近接施工离心模型试验研究［J］. 岩土力学，2010（9）：2849-2853.

Ling Hao，Qiu Wenge, Sun Bing, etc. Study of Adjacent Construction of Two Tube Shield Tunnels by Centrifugal Model Test ［J］. Rock and Soil Mechanics，2010（9）：2849-2853.

［4］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（6）：818-823.

Gao Meng，Gao Guangyun, Feng Shijin, etc. Control of Deformation of Operating Subway Station Induced by Adjacent Deep Excavation［J］. Chinese Journal of Geotechnical Engineering，2008（6）：818-823.

［5］王卫东，沈健，翁其平，等. 基坑工程对邻近地铁隧道影响的分析与对策［J］. 岩土工程学报，2006（z）：1340-1345.

Wang Weidong，Shen Jian, Weng Qiping, etc. Analysis and Countermeasures of Influence of Excavation on Adjacent Tunnels［J］. Chinese Journal of Geotechnical Engineering，2006（z）：1340-1345.

［6］马乾瑛，毛念华，赵均海，等. 基坑开挖对已建地铁站结构的安全性影响研究［J］. 铁道工程学报，2014（4）：107-112.

Ma Qianying, Mao Nianhua, Zhao Junhai, etc. Research on the Existing Subway Station Structure Safety Effected by Foundation Pit Excavation［J］. Journal of Railway Engineering Society，2014（4）：107-112.

［7］JGJ 120—2012，建筑基坑支护技术规程［S］.

JGJ 120—2012，Technical Specification for Retaining and Protection of Building Foundation Excavations［S］.

［8］徐珍，易言江. 临地铁深基坑地下结构施工降水技术［J］. 建筑科学，2013（1）：102-106.

Xu Zhen，Yi Yanjiang. Dewater Technology for Subsurface Structures of Deep Excavation near Subway［J］. Building Science，2013（1）：102-106.

［9］于祺. 降水引起成层土附加应力及地表沉降的研究［J］. 地下空间与工程学报，2013（1）：166-172.

Yu Qi. Research on Additional Stress and Ground Settlement Caused by Dewatering in Layered Soils ［J］.Chinese Journal of Underground Space and Engineering，2013（1）：166-172.

［10］谢俊. 土压平衡盾构动态施工过程研究［D］. 成都：西南交通大学，2008.

Xie Jun. Study on Construction Process of EPB Shield Machine［D］. Chengdu: Southwest Jiaotong University,2008.