| Distribution Laws of Fire Temperature Fields in Immersed Tunnel: A Case Study of Hong Kong Zhuhai Macao Bridge Immersed Tunnel Project（沉管隧道火灾温度场分布规律研究——以港珠澳大桥沉管隧道为例） |
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| 引用本文： | JIANG Shuping,TIAN Kun,XU Pai.Distribution Laws of Fire Temperature Fields in Immersed Tunnel: A Case Study of Hong Kong Zhuhai Macao Bridge Immersed Tunnel Project（沉管隧道火灾温度场分布规律研究——以港珠澳大桥沉管隧道为例）[J].隧道建设,2018,38(5):719-731. |
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| 作者姓名： | JIANG Shuping TIAN Kun XU Pai |
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| 作者单位： | (1. Chongqing Jiaotong University, Chongqing 400074, China; 2. China Merchants Chongqing Communications Technology Research & Design Institute Co., Ltd., Chongqing 400067, China) |
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| 摘 要： | The large testing platform for immersed tunnel is established to analyze the distribution laws of the temperature field and its influencing factors when a tunnel fire breaks out. Meanwhile, the combination method of physical testing (1∶1 full scale fire test) and numerical calculation FDS are applied. Some conclusions are drawn as follows: (1) Longitudinal wind speed within limits can decrease the maximum temperature of tunnel crown top effectively when fire breaks out in tunnel. (2) The maximum temperature of tunnel crown top and fire behavior are related to fire types obviously. (3) The high temperature resistance safe position of the tunnel equipment is below 3.5 m of tunnel sidewall in case of fire source heat quantity of 50 MW. (4) The fire maximum temperature is positively related to heat release rate (HRR) and longitudinal wind speed.
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| 关 键 词： | immersed tunnel full scale experiment disaster prevention and mitigation oil pool fire wood crib fire temperature field |
| 收稿时间： | 2017-12-14 |
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