| 高海拔铁路隧道火灾燃烧特性试验研究 |
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| 引用本文： | 张念,谭忠盛,毛军,万飞,郭峰.高海拔铁路隧道火灾燃烧特性试验研究[J].中国安全科学学报,2011,21(12). |
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| 作者姓名： | 张念 谭忠盛 毛军 万飞 郭峰 |
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| 作者单位： | 北京交通大学土木建筑工程学院,北京,100044 |
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| 基金项目： | 铁道部科技研究开发计划重点课题(KCD09002531) |
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| 摘 要： | 采用火灾模型试验的研究方式,在高海拔特长铁路隧道——关角隧道(32.645 km)的斜井内进行火灾燃烧的全尺寸模型试验,测得不同火灾规模条件下隧道内温度和烟气分布,通过分析试验结果,得到高海拔隧道火灾的燃烧特性。研究结果表明:隧道拱顶处温度高于隧道中心线附近温度;火源附近温度最高,隧道内各位置温度随着距火源点距离增加而降低;纵向风速对隧道内烟气分布有重要影响,火源下游温度高于上游温度。结合试验的分析结果,就高海拔隧道火灾防灾救援设计提出建议。
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| 关 键 词： | 高海拔 隧道火灾 模型试验 燃烧特性 温度分布 烟气 |
Experimental Study on Combustion Characteristics of Fire in High-altitude Railway Tunnels |
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| ZHANG Nian
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TAN Zhong-sheng
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MAO Jun
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WAN Fei
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GUO Feng.Experimental Study on Combustion Characteristics of Fire in High-altitude Railway Tunnels[J].China Safety Science Journal,2011,21(12). |
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| Authors: | ZHANG Nian TAN Zhong-sheng MAO Jun WAN Fei GUO Feng |
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| Institution: | ZHANG Nian TAN Zhong-sheng MAO Jun WAN Fei GUO Feng(School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | Full-scale model tests were conducted in the slope of Guanjiao Tunnel(32.645 km),which is a high-altitude super-long railway tunnel,to research the burning characteristics of high-altitude tunnel fire.The distribution of the temperature and smoke under different fire-scale conditions inside the tunnel was measured.Analysis on the experimental results showed that temperature at the tunnel vault was higher than temperature near the tunnel centerline;temperature near the fire was highest;with the distance to t... |
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| Keywords: | high-altitude tunnel fire model test combustion characteristics temperature distribution smoke |
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