分离式深埋地铁车站的火灾烟气运动及防控

doi:10.16265/j.cnki.issn1003-3033.2019.06.013

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (6): 76-82.doi: 10.16265/j.cnki.issn1003-3033.2019.06.013

分离式深埋地铁车站的火灾烟气运动及防控

毛军¹ 教授, 郗艳红¹ 副教授, 胡家鹏² 高级工程师, 祝岚² 高级工程师, 林振瑶¹, 蔡煜¹

1 北京交通大学土木建筑工程学院,北京 100044;
2 北京市轨道交通设计研究院有限公司,北京 100086

收稿日期:2019-03-27 修回日期:2019-05-16 发布日期:2020-11-02
作者简介:毛军(1966—),男,湖北公安人,博士,教授,博士生导师,主要从事地下空间火灾安全及高速列车空气动力学等方面的研究。E-mail:jmao@bjtu.edu.cn。
基金资助:
国家重点研发计划项目(2016YFC0802206);国家自然科学基金资助(51578061);北京市科委课题(Z131100004513010);中央高校基本科研业务费(2019JBM087)。

Smoke movement and control of fire in deep buried metro station with long passages

MAO Jun¹, XI Yanhong¹, HU Jiapeng², ZHU Lan², LIN Zhenyao¹, CAI Yu¹

1 School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;
2 Beijing Rail Transit Design and Research Institute Co. Ltd, Beijing 100086, China

Received:2019-03-27 Revised:2019-05-16 Published:2020-11-02

摘要/Abstract

摘要： 为确定大埋深新型分离式地铁车站火灾情形下的合理通风排烟模式和排烟参数,以站厅和站台通过扶梯长通道相连的深埋地铁车站为研究对象,采用数值模拟方法分析火灾发生时在深埋车站内不同区域,车站和扶梯通道内烟气的运动过程及其防控方式。结果表明:对站台层与站厅层、长通道火灾的有效应急响应所需排烟参数相差较大,所需风机匹配运行的排烟模式也不相同;站台层火灾的排烟需采取车站与隧道风机的合理匹配运行模式,站厅层和长通道内的火灾则只需开启站厅排烟风机即能使楼梯口的风速达到临界风速的要求;所提出的排烟模式和排烟参数适用于该类型车站的火灾防排烟设计。

关键词: 深埋地铁车站, 火灾, 烟气运动, 临界风速, 通风排烟

Abstract: In order to determine the reasonable mode and parameters of smoke exhaust in the case of fire in a new type of separated metro station, the deep-buried metro station whose station hall and platform is connected by a long escalator channel was taken as the research object, and the numerical simulation was used to analyze the smoke movement process and its prevention and control methods in different areas of the station and escalator passages when the fire occurred. The results show that the smoke exhaust of the platform area fire needs to adopt the reasonable matching operation mode between the station and the tunnel fan, that the fire in the lobby floor and the long passage only needs to open the smoke exhaust fan of the hall to make the wind speed of the stairs reach the critical wind speed requirement, and that the proposed smoke exhaust mode and parameters are applicable to the fire smoke prevention and exhaust design of this type of station.

Key words: deep-buried metro station, fire, smoke movement, critical wind speed, ventilation and smoke exhaust

中图分类号:

X932

毛军, 郗艳红, 胡家鹏, 祝岚, 林振瑶, 蔡煜. 分离式深埋地铁车站的火灾烟气运动及防控[J]. 中国安全科学学报, 2019, 29(6): 76-82.

MAO Jun, XI Yanhong, HU Jiapeng, ZHU Lan, LIN Zhenyao, CAI Yu. Smoke movement and control of fire in deep buried metro station with long passages[J]. China Safety Science Journal, 2019, 29(6): 76-82.

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分离式深埋地铁车站的火灾烟气运动及防控

Smoke movement and control of fire in deep buried metro station with long passages

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