| 单层地铁站台火灾安全性分析 |
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| 引用本文： | 童艳,李兆文,阎丽萍,何嘉鹏.单层地铁站台火灾安全性分析[J].消防科学与技术,2005,24(4):437-439. |
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| 作者姓名： | 童艳 李兆文 阎丽萍 何嘉鹏 |
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| 作者单位： | 南京工业大学,城市建设与安全环境学院,江苏,南京,210009 |
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| 基金项目： | 江苏省社会发展计划项目“城市地铁站火灾烟气控制研究”(BS2003031) |
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| 摘 要： | 采用双层区域模拟思想，针对某单层地铁站台火灾建立了火灾烟气蔓延的数学模型。应用CFAST3．1．7软件求解了上层烟气温度、体积分数、厚度随时间的变化关系，分析得出火灾达到危险状态所需时间小于人员安全疏散时间的结论，为地铁防排烟系统的合理设计提供了依据。
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| 关 键 词： | 区域模拟 CFAST 危险临界务件 安全疏散 消防 |
| 文章编号： | 1009-0029(2005)04-0437-03 |
| 修稿时间： | 2005年2月21日 |
Analysis of safety when subway's platform is firing |
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| TONG Yan,LI Zhao-wen,YAN Li-ping,HE Jia-peng.Analysis of safety when subway''''s platform is firing[J].Fire Science and Technology,2005,24(4):437-439. |
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| Authors: | TONG Yan LI Zhao-wen YAN Li-ping HE Jia-peng |
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| Abstract: | Under the circumstance that a subway's platform is firing, this article establishs mathematical and physical model by using Two-layer zone simulation.On the basis of it, CFAST software is used to calculate the relationship about upper layer's temperature\density\thickness and time. Moreover, a consequence that times spended on fire's arriving at danger are smaller than times spended on people's evacuating is obtained. Thus, a mode of ejecting smoke must be established. It provides a good foundation for designing the system of preventing and ejecting smoke in subway. |
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| Keywords: | zone model CFAST critical condition in danger evacuate safely fire |
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