|本期目录/Table of Contents|

[1]李俊梅,尹晨晨,赵宇航,等.城市地下道路合流分岔路段烟气控制策略的优化研究[J].中国安全生产科学技术,2016,12(6):163-168.[doi:10.11731/j.issn.1673-193x.2016.06.029]
 LI Junmei,YIN Chenchen,ZHAO Yuhang,et al.Optimization study on smoke control strategies for converging and diverging sections in urban underground road[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(6):163-168.[doi:10.11731/j.issn.1673-193x.2016.06.029]
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城市地下道路合流分岔路段烟气控制策略的优化研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年6期
页码:
163-168
栏目:
现代职业安全卫生管理与技术
出版日期:
2016-06-30

文章信息/Info

Title:
Optimization study on smoke control strategies for converging and diverging sections in urban underground road
作者:
李俊梅12尹晨晨1赵宇航12李炎锋12常军3李雁3隋婧3
(1.北京工业大学 建筑工程学院,北京 100124;2. 北京工业大学 北京城市交通协同创新中心, 北京 100124;3. 北京市市政工程设计研究总院有限公司,北京 100082)
Author(s):
LI Junmei12 YIN Chenchen1 ZHAO Yuhang12 LI Yanfeng12 CHANG Jun3 LI Yan3 SUI Jing3
(1. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China; 2. Beijing Collaborative Innovation Center for Metropolitan Transportation, Beijing University of Technology, Beijing 100124, China; 3. Beijing General Municipal Engineering Design & Research Institute, Beijing 100082, China)
关键词:
合流分岔烟气控制数值模拟
Keywords:
converging and diverging smoke control numerical simulation
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2016.06.029
文献标志码:
A
摘要:
采用数值模拟的方法,对火源位于合流分岔路段上游时不同的纵向通风烟气控制策略进行了模拟分析,得到最佳的通风控制策略及送风参数。研究结果表明:火灾发生时,若只有主隧道送风,当送风风速为临界风速时,尽管火源上游烟气得到了很好的控制,但下游仍会有部分烟气会流入匝道,影响匝道内的行车安全;若加大主隧道送风风速以消除匝道内的烟气,则所需风速过大,既不经济也不安全;如果采用主隧道和匝道联合送风的送风策略,主隧道以临界风速送风,则匝道以较小的送风风速即可得到较好的烟气控制效果。该通风策略应为最优的烟气控制策略。
Abstract:
The different smoke control strategies with longitudinal ventilation when fire source locating at the upstream of converging and diverging sections in urban underground road were simulated and analyzed by using the numerical simulation method, and the optimum ventilation control strategy and air supply parameters were obtained. The results showed that when the fire occurs, if only conducting air supply in the main tunnel, when the air supply velocity is the critical velocity, although the smoke in the upstream of fire source can be controlled well, but part of the smoke will flow into the ramp in the downstream, which may influence the traffic safety in the ramp. If increasing the air supply velocity in the main tunnel to eliminate the smoke in the ramp, the desired air velocity will be too large, which is neither economic nor safe. When adopting the air supply strategy with combined air supply both in the main tunnel and ramp, and carrying out air supply with the critical velocity in the main tunnel, the better smoke control effect can be achieved in the ramp with smaller air supply velocity, which should be the optimum smoke control strategy.

参考文献/References:

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备注/Memo

备注/Memo:
国家自然基金面上项目(51278018);北京市自然科学基金面上项目(8132011);北京市自然科学基金委员会-北京市科学技术研究院联合资助项目(L140002)
更新日期/Last Update: 2016-06-30