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Volume 35 Issue zk1
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TUO Yong-fei, SHU Heng, GUO Xiao-hong, ZHANG Ya-guo, DING Wen-qi. Fireproof characteristics of lining and waterproof of shield tunnel with super-large diameter[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 269-274.
Citation: TUO Yong-fei, SHU Heng, GUO Xiao-hong, ZHANG Ya-guo, DING Wen-qi. Fireproof characteristics of lining and waterproof of shield tunnel with super-large diameter[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 269-274.
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Fireproof characteristics of lining and waterproof of shield tunnel with super-large diameter

  • 1. CCCC Second Highway Consultants Co., Ltd., Wuhan 430056,China; 2. CCCC Nanjing Weisan Rd. River-crossing Tunnel Construction Headquarters, Nanjing 211800, China; 3. Geotechnical Engineering Department, Tongji University, Shanghai 200092, China

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  • Received Date: April 07, 2013
  • Published Date: July 18, 2013
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    • Abstract
  • The Weisan Road Yangtze River tunnel of Nanjing is under high water pressure and passes through weak stratum. Fire may cause the failure of lining and the waterproof, resulting in tunnel leakage and water gushing, and it may cause destructive disasters of the tunnel. Based on the FEM analysis, segments under fire and different conditions are simulated, including construction stage, normal operation condition without protective measures and normal operation conditions with protective measures. The analysis shows that, at construction stage, the temperature near the waterproof is below 60 ℃, and the waterproof is in a safe state. Under operating conditions without fire prevention measures, after fire of 2 h, the maximum temperature near the internal waterproof is close to 300 ℃, and the waterproof will be burned. Under the protection of 30 mm-fireproof board, after fire of 2 h, the maximum temperature of the waterproof can be controlled below 100 ℃, ensuring the safety of the waterproof. The 20 mm-fireproof board can ensure the structural safety and the waterproof safety for 1 h under larger fire case, and 30 mm-fireproof board can ensure the safety for 2 h.
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  • 王松林,王 婷. 广深港高速铁路狮子洋隧道消防设计[J].(铁道标准设计), 2012(11): 79-84.(WANG Song-lin,WANG Ting. Fire protection design of Shiziyang Tunnel of Guangzhou-Shenzhen-Hongkong High-speed Railway[J]. Railway Standard Design, 2012(11): 79-84. (in Chinese))
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    中交第二公路勘察设计研究院有限公司. 管片接缝防水可靠性试验及数值分析研究[R]. 武汉, 2012.(CCCC Second Highway Consultants Co Ltd. Test and numerical study on waterproof reliability of shield segments[R]. Wuhan, 2012. (in Chinese))
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