白洋,李兴莉,郭芳

• 1:太原科技大学应用科学学院

摘要(Abstract)：

针对各类拥堵踩踏事故的高发对象"小学生群体",在一般元胞自动机模型上的基础上,引入推搡挤压概念描述小学生运动过程中特有的行为特征,建立了相应的元胞自动机应急疏散模型。数值模拟重点研究了不同密度下发生挤压的人数对疏散效率的影响,并对疏散过程中出现的典型时空动力学特性进行了讨论。结果表明:在低密度下,发生推搡挤压的人数对疏散效率影响甚微;随着密度的增加,疏散过程中出现局部的拥挤,推搡挤压的人数比例增大将导致疏散效率显著下降;当学生初始密度为0.7,挤压人数比例为80%时,疏散效率相对无挤压人数情况下下降了近70%.

关键词(KeyWords)： 元胞自动机;小学生;挤压;疏散时间

Abstract:

Keywords:

基金项目(Foundation): 山西省自然基金(201601D011013)

作者(Author): 白洋,李兴莉,郭芳

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