| 公路隧道火灾时纵向通风排烟下临界风速问题探讨 |
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| 引用本文： | 周庆,倪天晓,彭锦志.公路隧道火灾时纵向通风排烟下临界风速问题探讨[J].湖南工业职业技术学院学报,2011,11(3):3-6. |
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| 作者姓名： | 周庆 倪天晓 彭锦志 |
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| 作者单位： | 1. 湖南公安消防总队,湖南长沙,410205
2. 中南大学防灾科学与安全技术研究所,湖南长沙,410075 |
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| 基金项目： | 公安部消防局科研项目;项目名称:高速公路隧道工程消防验收方法及技术标准指南研究 |
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| 摘 要： | 烟气回流(Back-Layering)是隧道火灾在纵向风作用下的一种特殊烟气蔓延现象,抑制烟气逆流的临界风速一直是隧道火灾研究的一个热点。本文在分析国内外对纵向通风排烟下临界风速问题研究现状和规范规定的基础上,通过数值模拟和缩尺寸模型试验对临界风速与隧道坡度的关系进行研究,对它们的结果进行对比分析,为公路隧道火灾时纵向通风排烟管理提供参考。
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| 关 键 词： | 公路隧道火灾 纵向通风排烟 临界风速 |
Research on the Critical Velocity under Longitudinal Ventilation Smoke Evacuation in Highway Tunnel Fire |
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| ZHOU Qing,NI Tian-xiao,PENG Jing-Zhi.Research on the Critical Velocity under Longitudinal Ventilation Smoke Evacuation in Highway Tunnel Fire[J].Journal of Hunan Industry Polytechnic,2011,11(3):3-6. |
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| Authors: | ZHOU Qing NI Tian-xiao PENG Jing-Zhi |
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| Affiliation: | ZHOU Qing,NI Tian-xiao,PENG Jing-Zhi(1 Fire Prevention And Supervision Division,Fire Corps Of Hunan Province,Changsha Hunan 410205,China; 2.Institue of D isaster Prevention Science and Safety Technology,Central South University,Changsha Hunan 410075,China) |
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| Abstract: | Back-Layering is an unusual smoke spread phenomenon driven by longitudinal ventilation in tunnel fire,and the critical velocity of the smoke backflow has always been a general interest for tunnel fire studies.Based on the analyses of the domestic and foreign current study situation of the critical velocity under longitudinal ventilation smoke evacuation and the specifications of criterion,this paper makes a research on the connection between the critical velocity and the tunnel slope through value stimulations and size-reduced models and compares their results,which will offer references for longitudinal ventilation smoke evacuation management in highway tunnel fire. |
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| Keywords: | highway tunnel fire longitudinal ventilation critical velocity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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