以火灾动力学软件FDS(Fire Dynamics Simulator)在矿井巷道火灾中模拟方法为主线,建立了巷道中有无顶棚烟道的研究模型,对发生火灾时巷道温度场以及烟气变化情况进行探究。通过实验分析表明,设置顶棚烟道对巷道火灾烟气流动起到一定的抑制和疏导作用;随着风速增加,巷道中温度明显下降,热流快速分散,利于人员安全疏散。 With fire dynamics software FDS (Fire Dynamics Simulator) as the main line in the simulation of mine roadway fires, a research model of whether roofed flue has been established in the roadway is established, and the temperature field and the change of flue gas in the event of fire are explored. The experimental analysis shows that the ceiling flue is provided to restrain and mitigate the smoke flow in the tunnel fire. As the wind speed increases, the temperature in the tunnel decreases obviously and the heat flux disperses rapidly, which is conducive to the safe evacuation of personnel.