改进经验公式法计算隧道人员疏散时间

发布时间：2018-05-01 10:05

  本文选题：隧道 + 人员疏散　； 参考：《中国安全科学学报》2015年02期

【摘要】：为评估隧道发生火灾时人员疏散安全,有必要准确计算隧道人员疏散时间。传统经验公式法的假设条件过于简单,而现有仿真模拟方法不能准确地模拟人的复杂行为。建立改进的经验公式法,通过随机输入计算参数来模拟隧道人员疏散的动态随机过程,将疏散时间计算分解为多个阶段,并考虑车辆及人员的随机分布、火灾探测及人员反应时间的计算、大客车乘客下车时间、人行速度的随机输入、以及随人流密度变化的横洞门通行能力等,使计算所得疏散时间更贴近实际。与其余方法对比分析表明,采用改进的经验公式法得到的计算结果与传统经验公式计算方法相比,计算精度有较大提高。
[Abstract]:In order to evaluate the evacuation safety of tunnel fire, it is necessary to calculate the evacuation time accurately. The assumptions of the traditional empirical formula method are too simple, but the existing simulation methods can not accurately simulate the complex behavior of human beings. An improved empirical formula method is established to simulate the dynamic stochastic process of evacuation of tunnel personnel by random input of calculation parameters. The calculation of evacuation time is decomposed into several stages, and the random distribution of vehicles and personnel is considered. The calculation of fire detection and reaction time, the time of passengers getting off the bus, the random input of pedestrian speed, and the capacity of cross portal with the change of passenger density make the calculated evacuation time more practical. The comparison with other methods shows that the accuracy of the improved empirical formula method is higher than that of the traditional empirical formula method.
【作者单位】： 北京工业大学建筑工程学院;
【分类号】：U458
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本文编号：1828849