Design Points in Prevention and Cure of Coal and Gas Outburst in Limin Coal Mine

Based on the characteristics of gas outburst of Limin Wells,in combination with the original mining system,the mining loyaut was indentified,such as the first extraction in the weak autburst areas,from the central to the well field on both sides.The problem of coal and gas outburst in excavation was solved by using the method of bottom gas drainage lane with other auxiliary methods.The accidents of coal and gas outburst were effectively controlled,the mine smoothly resumed production.