基于元胞自动机的井巷火灾仿真  

Cellular automata-based tunnel fire simulation

作　　者：李翠平[1] 胡磊[1] 侯定勇[1] 张佳[1] 

机构地区：[1]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

出　　处：《北京科技大学学报》2013年第12期1546-1552,共7页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(51174032);教育部新世纪优秀人才支持计划资助项目(NCET-10-0225);中央高校基本科研业务费专项资金资助项目(FRF-TP-09-001A)

摘　　要：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.This article introduces a mine fire visualization simulation method based on cellular automata. On the basis of mine tunnel visualization, a tunnel fire combustion model for expressing cellular temperature and a tunnel fire smoke spread model for expressing cellular concentration were built by fire cell characterization. In these models the influence of fuel type and input density, ventilation and roadway slope on mine fire ignition and the effect of double diffusion, ventilation, buoyancy and throttling on fire smoke spread were taken into account, and a probability function was used for cellular automata modelling. Then according to the fire cellular combustion evolution rules and smoke cellular spreading evolution rules, the spatial changes of tunnel fire burning and harmful gas concentration were demonstrated through visualization means. Actual data from a mine proves the feasibility and effectiveness of tunnel fire simulation based on cellular automata.

关 键 词：矿山火灾 元胞自动机 计算机仿真 可视化 

分 类 号：TD752[矿业工程—矿井通风与安全]