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提出了一种基于元胞自动机的井巷火灾可视化仿真方法.在矿井巷道可视化的基础上,通过对火灾元胞进行表征,综合考虑可燃物类型与投放密度、井巷通风、井巷坡度等因素对井巷火源引燃效果的影响及双扩散作用、井巷通风、浮力作用和节流作用等因素对火灾烟气蔓延效果的影响,采用概率函数进行元胞自动机建模,构建了表达元胞温度的井巷火源燃烧模型和表达元胞浓度的井巷火灾烟气蔓延模型.基于火源元胞燃烧演化规则和烟气元胞蔓延演化规则,通过可视化手段展示了井巷火灾火源燃烧和有害气体浓度的时空发展变化.同时以矿山实际数据进行检验,说明了基于元胞自动机的井巷火灾仿真的可行性与有效性.
Based on the visualization of mine roadway, the fire cell is characterized by considering the type of combustibles and the discharge density, the ventilation in the borehole and the slope of the shaft and so on The influence of factors on the igniting effect of the fire source in well lane and the influence of double diffusion, ventilation, buoyancy and throttling effect of the mine on the spread of fire smoke were studied. The cellular automaton was modeled by probability function, A well-lane fire source combustion model for expressing cell temperature and a model for spread of smoke and gas in well-lane fires expressing cell concentration are presented.Based on the evolution rules of fire cell’s cellular combustion and the evolution rules of smoke cell’s cell creep, Fire source combustion and concentration of harmful gases in space and time.At the same time, the actual data of mine were used to test the feasibility and effectiveness of simulation based on cellular automata.