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在应急疏散中,合理的逃生出口数量和出口大小能够极大地提高逃生效率.本文通过建立恐慌人群的疏散模型,定量研究了逃生出口数量和出口大小对逃生效率产生的影响.为了研究恐慌人群决策如何受恐慌程度的影响,建立了视线严重受限(例如浓烟弥漫)情况下的逃生模型.在这种极端情况下,人群只有两种逃生策略:随机逃生和沿墙找出口,前者受恐慌程度控制.研究表明,出口数量和出口宽度的增加均能显著提高逃生效率,有趣的是,适当的恐慌程度下逃生效率达到最佳.
In the emergency evacuation, a reasonable number of escape exit and export size can greatly improve the efficiency of escape.Through the evacuation model of panic population, this paper quantitatively study the impact of the number of escape exit and exit size on the efficiency of escape.In order to study the panic crowd decision-making How panic-stricken affects the escape model in situations where the line of sight is severely restricted (such as thick smoke), in which the population has only two escape strategies: random escape and finding out along the wall, the former being panic Degree of control.The study shows that both the export volume and export width can significantly improve the efficiency of escape, and it is interesting to find the best escape efficiency at the appropriate level of panic.