|
|
Research on Safety Management of Adjacent Underground Pipelines in Metro Construction |
Wu Xian-guo1, ZENG Tie-mei2, ZHANG Li-mao1, SONG Ruo-xin1 |
1.Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; 2. Wuhan Metro Group Co. Ltd Wuhan, Hubei 430030, China |
|
|
Abstract Research purposes: Tunnel-induced pipeline damage has become a big issue, and the protection of pre-existing underground buried pipelines grows to be a public concern. Based on the impacts of metro construction on the safety of adjacent pipelines, the safety risk management standard for the existing pipelines adjacent to metro construction is studied. A systematic safety risk management system for the existing pipelines is also developed, providing supports for safety assurance and protection of adjacent pipelines at different risk levels.
Research conclusions: (1)According to the horizontal and vertical relative distances between the metro structure and the adjacent pipeline,the neighboring grade is divided into five levels(I-V); (2)To use the horizontal and vertical pipeline deformations as indicators to establish the safety control standard for the underground buried pipelines is more representative than other indicators; (3)With the deformation of the existing pipeline, usage, and its operation status taken into account, the safety risk of the tunnel-induced pipeline damage can be assessed into five different levels, namely Safe, Basic Safe, Dangerous, Basic Dangerous, and Very Dangerous. Corresponding prevention and protection measures are further proposed before and during the construction process for the adjacent pipelines according to their evaluated risk levels; (4) The proposed method is applied in one shaft foundation pit excavation project in Wuhan metro tunnel construction, and the results demonstrate the feasibility of the proposed method; (5)The research conclusions can be used in the metro tunnel construction fields by providing decision supports on the construction safety management.
|
Received: 21 June 2013
|
|
|
|
|
[1]方华, 李国成, 丁烈云, 等.隧道竖井施工对地下管线影响的数值模拟[J].铁道工程学报, 2008(11):62-65.
Fang Hua, Li Guocheng, Ding Lieyun, etc. Numerical Simulation for the Effect of Tunnel Shaft Construction on Buried Pipelines[J]. Journal of Railway Engineering Society, 2008(11):62-65.
[2]王文辉.盾构隧道下穿西气东输管道保护方案[J].铁道工程学报, 2012(11):70-74.
Wang Wenhui. Protection Scheme for Shield Tunnel Under-passing West-East Gas Pipeline[J]. Journal of Railway Engineering Society, 2012 (10):70-74.
[3]周诚.地铁盾构施工地表变形时空演化规律与预警研究[D].武汉:华中科技大学, 2011.
Zhou Cheng. Research on Time-space Evolution Law and Early-warning of the Ground Surface Settlement in Metro Shield Tunneling[D]. Wuhan: Huazhong University of Science and Technology, 2011.
[4] Bracegirdle A, Jefferis S A, Tedd P, etc. The Investigation of Acid Generation Within the Woolwich and Reading Beds at Old Street and Its Effect on Tunnel Linings[C]//Mair, R J Taylor, R N. Proceedings of Geotechnical Aspects of Underground Construction in Soft Ground. London: Int Symp, 1996:653-658.
[5]李兴高, 王霆.柔性管线安全评价的简便方法[J].岩土力学, 2008(7):1861-1864.
Li Xinggao, Wang Ting. Simple Method for Evaluating Safety of Flexible Pipelines[J]. Rock and Soil Mechanics, 2008(7):1861-1864.
[6]Attewell P B, Yeates J, Selby A R. Soil Movements Induced by Tunnelling and Their Effects on Pipelines and Structures[M]. London: Blackie and Son Ltd, 1986.
[7] Klar, Assaf, Alec Marshall, etc. Tunneling Effects on Jointed Pipelines[J]. Canadian Geotechnical Journal, 2008(1):131-39.
[8] Cheng C Y, Dasari G R, Chow Y K, etc. Finite Element Analysis of Tunnel-soil-pile Interaction Using Displacement Controlled Model[J]. Tunnelling and Underground Space Technology, 2007(4):450-466.
[9]吴波, 高波, 索晓明, 等.城市地铁隧道施工对管线的影响研究[J].岩土力学, 2004(4):657-662.
Wu Bo, Gao Bo, Suo Xiaoming, etc. Study on Influence of Metro Tunnel Excavation on Buried Pipelines [J]. Rock and Soil Mechanics, 2004(4):657-662.
[10] Marshall A M , Klar A , Mair R J. Tunneling Beneath Buried Pipes: View of Soil Strain and Its Effect on Pipeline Behavior[J]. Journal of Geotechnical and Geo-environmental Engineering, 2010(12):1664-1672.
[11]王霆.地铁浅埋暗挖法施工对邻近管线的影响与控制[D].北京:北京交通大学, 2009.
Wang Ting. Influence and Control of Metro Construction with Mining Method on Adjacent Pipelines[D]. Beijing: Beijing Jiaotong University, 2009.
[12] Ding, Lieyun, Wu, Xianguo, etc. Study on Safety Control for Wuhan Metro Construction in Complex Environments[J]. International Journal of Project Management, 2011(7):797-807.
[13]李兴高, 王霆.管线渗漏诱发地铁工程事故的安全控制技术研究[J].中国安全科学学报, 2010(5):125-130.
Li Xinggao, Wang Ting. Study on Safety Control Technologies of Pipeline Leakage-induced Accidents during Metro Construction[J]. China Safety Science Journa1, 2010(5):125-130.
|
|
|
|