以某大剧院为例,分析疏散时间的影响因素,基于群集流动理论和疏散软件Pathfinder,通过理论分析和数值模拟研究出口宽度对人员疏散的影响.出口宽度设置为1.2、1.4、1.8、2.0、2.4、3.0 m.研究表明,出口宽度增大时,疏散时间随之减少,但宽度增加到一定值时疏散时间趋于平稳.理论计算和数值模拟的结果相对一致.设定的场景下,出口宽度达到约2.4 m时,继续增加出口宽度后疏散时间基本保持不变.%Taking a grand theater as example, the influence factors on evacuation time were analyzed. Based on crowd theory and Pathfinder,the effect of exit width on the evacuation time of grand the?ater was analyzed theoretically and numerically. The width or exits were 1.2, 1.4, 1.8, 2.0, 2.4 and 3.0 m. The result showed that with the increase of the width of exit, the evacuation time reduced, but the evacuation time tends to be aconstant value when the width increased to a certain value. The theoretically analyzed and numeri?cally simulated is relatively consistent.Under the setting scenario, the evacuation hardly changed when exit width exceeds 2.4 m.
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