| 地铁侧式车站列车火灾排烟模拟研究 |
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| 引用本文： | 钟茂华,史聪灵,胥旋.地铁侧式车站列车火灾排烟模拟研究[J].中国安全生产科学技术,2011,7(11):9-13. |
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| 作者姓名： | 钟茂华 史聪灵 胥旋 |
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| 作者单位： | 中国安全生产科学研究院交通安全研究所,北京,100012 |
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| 基金项目： | 国家自然科学基金项目(编号:51074143、91024014、91024022)资助 |
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| 摘 要： | 利用火灾动力学模拟方法,对地下一层地铁侧式车站列车火灾的烟气蔓延规律和排烟效果进行了模拟研究。首先生成了地铁车站的三维模型,基于通风排烟系统的事故运行方案,对列车火灾烟气扩散过程、气流组织模式和烟气参数进行了计算模拟。模拟表明：排烟系统启动后,中间隧道的两端向内形成了大于5m/s的流速,屏蔽门处流速为站台流入隧道,可有效阻碍烟气进入站台区域,烟气排放主要通过车站轨顶风口排放,烟气在500s左右进入站台,排烟系统有效减缓烟气在站台的下降时间,为列车内乘客疏散提供了可用的安全疏散时间。
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| 关 键 词： | 地铁侧式车站 列车火灾 排烟 模拟 |
Numerical analysis on smoke control of train fire in a side-platform metro station |
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| ZHONG Mao-hua,SHI Cong-ling,XU Xuan.Numerical analysis on smoke control of train fire in a side-platform metro station[J].Journal of Safety Science and Technology,2011,7(11):9-13. |
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| Authors: | ZHONG Mao-hua SHI Cong-ling XU Xuan |
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| Institution: | ZHONG Mao-hua,SHI Cong-ling,XU Xuan(Institute of Transportation Safety,China Academy of Safety Science and Technology,Beijing 100012) |
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| Abstract: | By fire dynamical modeling,the pattern of smoke spread and control efficiency of train fire in a side-platform metro station is simulated.First the tree dimensional model of the metro station is built,under the operation of accident mode of the ventilation and exhaust system,the smoke spread,air flow pattern and other smoke parameters are calculated.The simulation shows after the operation of the smoke exhaust system,5 m/s of incurrent velocity is formed in the middle tunnel,the flow direction at the open s... |
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| Keywords: | side-platform metro station train fire smoke exhaust simulation |
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