某地下展馆火灾时人员疏散策略探讨

Evacuation from underground exhibition hall in fire

以某地下展馆为例,对地下建筑的火灾烟气运动进行数值模拟,分析展馆中-6m标高位置和0m标高位置疏散出口的安全性。0m标高位置处的出口为一敞开楼梯,烟气一旦沉降到0m高度,人员将直接受到烟气的威胁。建议在0m标高位置处出口增设机械补风口,利用疏散指示标志引导人员通过-6m标高位置处出口进行疏散的方法,提高人员疏散的安全性。

The smoke movement of fire in underground building was simulated with the example of an underground exhibition hall.The safety of exits of exhibition hall at height of-6 m and 0 m was analyzed.The smoke would have threatened the people when the smoke subsides to 0 m height since the exit at 0 m height is an open stairway.Adding mechanical air supply at height of 0 m and using evacuation signs to guide people to the exit at height of-6 m were suggested to enhance the safety of evacuation.