|本期目录/Table of Contents|

[1]吴进,吴子科,蔡治勇,等.双层岛式地铁站站厅全尺寸烟气温度传播规律研究*[J].中国安全生产科学技术,2021,17(11):165-171.[doi:10.11731/j.issn.1673-193x.2021.11.025]
 WU Jin,WU Zike,CAI Zhiyong,et al.Study on propagation laws of smoke temperature in full-scale two-story island subway station hall[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(11):165-171.[doi:10.11731/j.issn.1673-193x.2021.11.025]
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双层岛式地铁站站厅全尺寸烟气温度传播规律研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
17
期数:
2021年11期
页码:
165-171
栏目:
职业安全卫生管理与技术
出版日期:
2021-11-30

文章信息/Info

Title:
Study on propagation laws of smoke temperature in full-scale two-story island subway station hall
文章编号:
1673-193X(2021)-11-0165-07
作者:
吴进吴子科蔡治勇刘刚张爱婕
(1.重庆科技学院 安全工程学院,重庆 401331;
2.重庆市安全生产科学研究有限公司,重庆 401331;
3.重庆市安全生产科学研究院,重庆 401331)
Author(s):
WU Jin WU Zike CAI Zhiyong LIU Gang ZHANG Aijie
(1.School of Safety Engineering,Chongqing University of Science and Technology,Chongqing 401331,China;
2.Chongqing Safety Science and Technology Research Co.,Ltd.,Chongqing 401331,China;
3.Chongqing Academy of Safety Science and Technology,Chongqing 401331,China)
关键词:
双层岛式结构地铁站高温烟气传播规律数值模拟试验分析
Keywords:
two-story island structure subway station high temperature smoke propagation law numerical simulation experimental analysis
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2021.11.025
文献标志码:
A
摘要:
为研究典型地下双层岛式结构地铁站站厅火灾状况下烟气温度变化规律,以南昌地铁3号线为例,分别运用PyroSim数值模拟软件和热烟测试,研究典型地下双层岛式结构地铁站站厅火灾发生6 min时间段内站厅烟气沉降时间、温度变化规律。结果表明:火灾发生6 min前,高温烟气层沉降高度主要在3.5 m及以上,烟气未沉降至能威胁人员的高度;站厅两端出入口数量不同,导致烟气呈现非对称扩散,出入口补风效果越好,烟气凝聚越少,温度越低;靠近送风口区域与附近区域相比,温度普遍较低。研究结果可为典型地下双层岛式结构地铁站站厅火灾温度传播规律研究提供参考。
Abstract:
To investigate the change laws of smoke temperature in the station hall of typical underground two-story island structure subway station,taking the Line 3 of Nanchang Metro as an example,under the condition of good operation of the ventilation air-conditioner and smoke control and extraction system in the station hall,the change laws of settlement time and temperature of smoke in the station hall within 6 minutes of fire in the typical underground two-story island structure metro station were studied by using two methods of PyroSim numerical simulation software and field test analysis of hot smoke test,respectively.The results showed that in the first 6 minutes of fire,the settlement height of high temperature smoke layer was mainly 3.5 m and above,and the smoke did not settled to the height threatening the personnel.The different amount of entrance and exit of station hall would lead to the asymmetric diffusion of smoke,and the better the replenishing wind effect of entrance and exit,the less the smoke condense,and the lower the temperature.The temperature of the area near the air outlet was generally lower than that of adjacent areas.The results can provide reference for the research on the propagation laws of fire temperature in the typical underground two-story island structure subway station hall.

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备注/Memo

备注/Memo:
收稿日期: 2021-07-07;网络首发日期: 2021-11-26
* 基金项目: 重庆市自然科学基金项目(cstc2020jcyj-msxmX0174);重庆市教育委员会科学技术研究项目(KJQN202001539)
作者简介: 吴进,硕士研究生,主要研究方向为城市应急管理。
通信作者: 吴子科,硕士,高级工程师,主要研究方向为城市应急管理。
更新日期/Last Update: 2021-12-08