摘要
最高温度是火灾场景设计中的一个关键参数,它决定了火灾中衬砌结构材料力学性能的劣化程度。本文通过对国内外大量隧道火灾案例的分析和研究,给出了公路隧道中不同车辆在火灾中可能达到的最高温度。同时通过对火灾试验成果的分析,得出了通风对隧道内达到的最高温度及峰值热释放率具有明显的影响,且其影响效果与火灾类型有关。最后通过对火灾试验成果的统计分析,给出了不同火灾类型下通风风速与最高温度的经验公式。
The maximum temperature is a key parameter in fire scenario design; it can decide the deteriorated degree of the mechanic properties of the lining material. In this paper, through the analysis of the fire cases at home and abroad, the maximum temperature of different vehicles during fire in highway tunnel is proposed. The fire experiments also show that the ventilation has a notable influence on peak Heat Release Rate and the maximum temperature in highway tunnel and the consequence is related to the classes of fire. Finally, the empirical correlations to predict the maximum temperature and ventilation velocity in different kinds of fire are proposed based on the analysis of the fire experiments,.
出处
《地下空间与工程学报》
CSCD
北大核心
2012年第A01期1601-1604,共4页
Chinese Journal of Underground Space and Engineering
基金
国家自然科学基金项目(50978197
50808137)
关键词
公路隧道
火灾
场景设计
最高温度
highway tunnel
tunnel fire
scenario design
maximum temperature