Experimental Study on Characteristics of Gas Migration and Dispersion in One Dimensional Space

Abstract

Mine counter wind is an important relief measure to control airflow when disaster occurs in mine. Once a fire occurs in the main inlet area of the mine, in order to prevent the expansion of the disaster, it is necessary to carry out mine counter wind.Windy well gas ventilation system during mine air reverse distribution of gas migration is more complex, rely on experimental method is difficult to clearly grasp the mineral sheers distribution of gas migration during the wind, combined with the practice, rarely used against the wind, the lack of mineral sheers anti wind during gas migration distribution in ventilation system, resulting in many cases, difficult to make a decision on against the wind, Therefore, it is necessary to use the computer simulation program to simulate and study the reverse wind in the high gas mine with multiple air shafts. And gas migration in mine is one of the most important parameters in simulation of dispersion dispersion coefficient of gas migration, is for the study of reverse wind during the migration of gas in mine network system diffusion process, the formation of high concentration of gas cloud caused by catastrophe rule research and plan technical analysis, gas migration characteristics of dispersion experiments.