Abstract:
The sound was an omen of coal and gas outburst ahead of coal roadway working face. It took the 5868 return-air way heading face in Wulan Coal Mine as the project example, analyzed the reasons for the sound of coal burst, and put forward the countermeasures, which included changing driving way, reducing driving speed and decreasing the control scope of local outburst-prevention in the working face. The results showed that after the related measures were taken, safe and smooth driving was achieved in coal roadway, and the dynamic phenomenon of coal burst did not appear.