地铁隧道火灾顶棚烟气最高温度试验研究

Ilongutudinal temperature of smoke near vault in tunnel fires with longitudinal ventilation was studied by small-scale experiments.Relationship between temperature of smoke near vault and longitudinal velocity，heat release rate of fire was also discussed. The results show that longitudinal velocity and the heat release rate of fire has significant influenceon longutudinal temperature of smoke near vault. By comparing the test results of maximum temperature of smoke with the predicted values by Kurioka model，a modified correlation is proposed by adding a metro tunnel corrected factor. The formula is recommended for the authority to use as a tool in evaluating the temperature of smoke near vault in metro tunnel fires.