基于3DGIS数字矿山基础信息平台的火灾烟流蔓延分析及避灾路线解算

Analysis of Movement of Fire Smoke Flow and Determination of Route for Avoiding Disaster Based on Information Platform of 3DGIS Digital Mine

结合矿井火灾烟流运动理论和火风压对通风网络的影响,提出了矿井火灾时期烟流传播过程的数值模拟数学模型及计算机算法,通过解算确定了合理的避灾路线;基于3DGIS数字矿山基础信息平台及其三维可视化技术,开发了烟流传播过程及避灾路线的算法计算机程序,模拟矿井火灾发生过程,三维展示烟流污染范围及人员避灾路线;经巷道物理微缩模型的实验证实,该算法可以应用到实际矿井火灾烟流蔓延分析;将其分析功能应用在某矿井下火灾应急预案的演练中,发挥了很好的作用,取得了良好的效果。

Combining with movement theory of fire smoke flow of mine roadway and effect of fire-air pressure to ventilation network,the paper proposed mathematical model of numerical simulation and computer algorithm of smoke expansion in time of mine fire,and determined reasonable routes for avoiding disaster.Based on basic information platform of 3DGIS digital mine and 3D visualization technique,computer programs of algorithm of smoke movement and route for avoiding disaster were developed,and it can simulate process of fire disaster in mine and show the scope of smoke pollution and routes for avoiding disaster for workers.The algorithm can be applied to analyze smoke flow expansion of actual fire disaster confirmed by experiment of roadway physical miniatures.The program was applyed to fire emergency plans drills of a coal mine,and played a very good role and achieved a good result.