某地铁商业街人员疏散能力分析

Analysis on evacuation capacity of a subway commercial street

通过精细网格计算模拟的方法对某地铁商业街客流高峰时段的人员疏散能力进行计算模拟,分析高峰客流时段公共区域人员所需要的疏散时间、疏散通道及出口设置,并提出相应的对策措施。研究结果表明:该地铁商业街人员疏散能力为6632人/min,防火分区疏散时间较长的依次是防火分区4(4.94 min)、防火分区6(4.14 min)、防火分区3(3.14 min),出口利用率较高的依次是人员密集区出口11(10.54%)、出口15(9.00%)、出口29(6.20%)。研究方法可有效评估地铁商业街疏散能力,为此类地铁商业街的客流管控和人员疏散提供了一定的参考依据。

The layout and structure of subway commercial street buildings are complex,with dense passenger flow.In case of fire and other emergencies occur,it is difficult to evacuate people,which is easy to cause mass casualties.Therefore,rapid evacuation is very important to ensure the safety of personnel.A fine grid computing simulation method is used to simulate the evacuation capacity of people in a subway commercial street.The evacuation time required for the public area of a subway commercial street during the peak passenger flow period,the bottleneck of evacuation channel and exit are analyzed,and the corresponding countermeasures and measures are put forward.The results show that the evacuation capacity of the subway commercial street is 6632 people/min,and according to the longer evacuation time are fire compartment four(4.94 min),fire compartment six(4.14 min),fire compartment three(3.14 min).The high utilization rate of the exit are 11(10.54%),15(9.00%)and 29(6.20%)respectively.The research method can evaluate the evacuation capacity of the subway commercial street,and provide the basis for passenger flow control and personnel evacuation of this kind of subway commercial street.