Based on the analysis results of the characteristics and risk factors of subway fire,as well as the sub-jective and objective factors in evacuation simulation,a decision analysis method of metro station personnel evacua-tion based on(fire dynamics simulator,FDS) and Pathfinder is proposed to reduce the loss caused by subway fire to life and property,and established FDS fire simulation model and Pathfinder personnel evacuation simulation model under the background on the Si Menkou metro station on the 5th line of track traffic in Wuhan city. In the FDS fire simulation,the available safety egress time of each dangerous location was determined from the three aspects of flue gas temperature,CO concentration and visibility. Based on this, the personnel evacuation simulation was carried out based on Pathfinder,and the results were analyzed from the aspects of personnel escape rate, available safety egress time utilization rate and so on. By changing the number of people to be evacuated and the power of the fire source in simulation,the capacity of pedestrian flow and the capacity of fire source power are explored,which have certain reference value for subway fire evacuation.%为减小地铁火灾对人员生命财产所造成的损失,基于对地铁火灾的特点和危险因素,以及人员疏散仿真中主观和客观影响因素的分析结果,提出基于火灾模拟器(fire dynamics simulator,FDS)和Pathfinder的地铁车站人员疏散决策分析方法,并以武汉市轨道交通五号线司门口地铁车站为研究背景,建立了FDS火灾仿真模型和Pathfinder人员疏散仿真模型.在FDS火灾仿真中,分别从烟气温度、CO浓度和能见度三个方面确定了各危险位置的可用安全疏散时间.在此基础上基于Pathfind-er进行人员疏散仿真.主要从人员逃生率、可用安全疏散时间利用率等方面对其结果进行分析.通过改变仿真中的待疏散人员数量和火源功率,探究了该车站的人流量容纳能力和火源功率容纳能力,对地铁火灾疏散具有一定的参考价值.
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