| 关于隧道火灾时火风压计算方法的讨论 |
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| 引用本文： | 张廷彪,张祉道.关于隧道火灾时火风压计算方法的讨论[J].现代隧道技术,2010,47(1). |
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| 作者姓名： | 张廷彪 张祉道 |
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| 作者单位： | 四川省交通厅交通勘察设计研究院,成都,610017 |
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| 摘 要： | 文章通过采用试验资料确定温度场,试提出一个较为简单明晰的火风压计算公式.公式表明火风压由三部分组成,烟气的热压差在隧道纵坡较大时占的比例较大,是火风压的主要组成部分;火风压与隧道纵坡成正比关系.文章还结合通风计算算例,发现火灾工况一般不会控制通风设计;提出的计算火风压方法使用方便,原理较为明淅,适合于设计中应用.
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| 关 键 词： | 隧道 火风压 计算公式 通风设计 |
Discussion about the Computation Method for the Fire-caused Wind Pressure During a Tunnel Fire |
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| Zhang Tingbiao,Zhang Zhidao.Discussion about the Computation Method for the Fire-caused Wind Pressure During a Tunnel Fire[J].Modern Tunnelling Technology,2010,47(1). |
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| Authors: | Zhang Tingbiao Zhang Zhidao |
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| Institution: | Zhang Tingbiao Zhang Zhidao ( Communication Survey,Design , Research Institute,Sichuan Communication Bureau,Chengdu 610017) |
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| Abstract: | By adopting the temperature field determined by experimental data, a relatively concise calculating formula of fire wind pressure was established. It indicated that fire wind pressure was composed of three parts, in which wind pressure caused by thermal difference of smoke constituted a large proportion when the longitudinal slope of the tunnel was large and that fire wind pressure was in proportion to the longitudinal slop. Additionally, by considering the case study of ventilation, it was found that venti... |
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| Keywords: | Tunnel Fire wind pressure Calculating formula Ventilation design |
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