主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (1): 76-81.

• • 上一篇    下一篇

不同车门开闭状态下地铁车厢火灾特性研究

姜学鹏1,2,3，肖倪琪1,2，路世昌4   

  1. 1. 武汉科技大学资源与环境工程学院，湖北武汉430081；2. 武汉科技大学消防安全技术研究所，湖北武汉430081；3. 武汉科技大学湖北省工业安全工程技术研究中心，湖北武汉430081；4. 应急管理部天津消防研究所，天津300381

  • 出版日期:2021-01-15 发布日期:2021-01-15
  • 作者简介:姜学鹏（1976-），男，山东平度人，武汉科技 大学资源与环境工程学院教授，博士，主要从事隧道及地 下空间火灾动力学与防治研究，湖北省武汉市青山区和平 大道947 号，430081。
  • 基金资助:
    国家自然科学基金项目（51874213，51806156）；湖北省自然科学基金青年项目（2018CFB186，2018CFB226）

Fire characteristics of metro cabin under different doors opening and closing conditions

JIANG Xue-peng1,2,3，XIAO Ni-qi1,2， LU Shi-chang4   

  1. 1. School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Hubei Wuhan 430081, China; 2. Hubei Provincial Industrial Safety Engineering Technology Research Center, Hubei Wuhan 430081, China; 3. Fire Safety Technology Institute, Wuhan University of Science and Technology, Hubei Wuhan 430081, China; 4. Tianjin Fire Science and Technology Research Institute of MEM, Tianjin 300381,China
  • Online:2021-01-15 Published:2021-01-15

摘要：

考虑地铁车窗受高温破碎的因素，利用FDS 研究不同车门开闭状态下车厢火灾发展，对比热释放速率、温度、车窗破碎时间等。结果显示：车门开启数量对车厢火灾热释放速率的影响较大，最大热释放速率可达14.4 MW。在400 ℃和600 ℃的破碎温度下，当车门开启数量大于3 扇和4 扇时，车厢火灾最大热释放速率下降。火灾发展初期，车门开启数量对车厢内温度分布影响不大，全面发展阶段时，车门开启会造成温度跳跃式增长。对于车厢火灾，不同车门开启状态会影响车窗破碎的顺序、位置及时间。当1 号车门开启时，400 ℃工况下，火源两侧窗户破碎时间相比600 ℃工况最多提前1 066 s。

关键词: 地铁车厢火灾, 车门启闭, 车窗破碎, 热释放速率, 温度分布

Abstract: Considering the factors that cause metro windows to be broken due to high temperature, using FDS software to study the development of metro cabin fires under different door opening and closing states, and analyzing the heat release rate (HRR), temperature distribution, window break time, etc. The results show that the number of door openings has a great influence on the heat release rate of the cabin fire, and the maximum heat release rate of the fire can reach 14.4 MW. At 400 ℃ and 600 ℃ crushing temperature, when the number of door openings is greater than 3 and 4, the maximum heat release rate of the compartment fire changes from increasing to decreasing. In the early stage of fire development, the number of door openings has little effect on the temperature distribution in the cabin. When the fire enters the full development stage, the opening of the door will cause a jump in temperature. For compartment fires, different door opening states will correspondingly affect the order, position and time of window breakage. When door 1 is opened, under 400 ℃ working condition, the window breaking time on both sides of the fire source is at most 1 066 s earlier than that under 600 ℃ working condition.

Key words: metro cabin fire, doors opening and closing status, broken window, heat release rate; temperature distribution