论文部分内容阅读
动车组隧道火灾温度场模拟分析对高速列车隧道中的火灾救援和防火设计有着重大指导意义。利用FDS建立车厢火灾分析模型,模拟分析列车隧道中发生火灾时的温度场分布规律。列车速度较低时,车厢温度先上升,再降低,随着运行速度的提升,当速度超过200 km/h,车厢内温度降低趋势不明显;发生火灾时,初期的120 s车厢温度整体在140℃左右,300 s时,车厢中后部区域温度高达800℃左右,在火灾救援时,要向车体两端进行人员的疏散,尤其列车运行端更适合逃生。
The simulation analysis of EMU tunnel fire temperature field is of great guiding significance to fire rescue and fire protection design in high-speed train tunnel. FDS was used to establish the compartment fire analysis model to simulate the distribution of temperature field in the train tunnel when a fire occurred. When the train speed is low, the cabin temperature first increases and then decreases. With the increase of operating speed, when the speed exceeds 200 km / h, the temperature decrease in the cabin is not obvious. In the event of a fire, the initial 120-second cabin temperature is 140 ℃, 300 s, the rear compartment temperature as high as about 800 ℃, in the fire rescue, to the vehicle body at both ends of the evacuation, in particular, the train is more suitable for escape run side.