The Field Model Construction and Analysis of Complex Mine Belt Fire Based on Personnel Evacuation Theory

In order to realize the visualization of the catastrophic law of mine belt fire on personnel evacuation theory, the complex roadway model is constructed by using the fire dynamic simulation software. The change of monitoring data such as temperature, smoke concentration and visibility is simulated in near-fire source of tape fire roadway. It is found that the main factors affecting the escape of personnel are smoke temperature, CO concentration and visibility in the mine tape fire. The first 100 s is a critical period for the smooth escape of the people on the wind side of the fire source after the tape fire. The high smoke temperature, high CO concentration and low visibility of the roadway seriously affect the escape of personnel after 150 s. At this time, the fire has developed into the flash-over stage. The parameters reach the critical value at 40 s with the 20% smoke concentration as the critical value in the roadway. It provides a reference for mine emergency rescue and fire escape.