Technical Measure and Practice in Prevention and Control of Coal and Gas Outburst in Blasting Face of Outburst Coal Seam

The prevention and control of coal and gas outburst in blasting face of outburst coal seam are the key hard parts of coal and gas outburst control.During the 己15-24080 coal roadway drivage of Pingdingshan ten shares of Mine,Four in One integrated control measures and the two systems of blasting were implemented strictly,and in some areas and local places the prevention and control measures of coal and gas outburst were enhanced,which assured the safety of roadway drivage ande mad use of advantage of blasting drivage.During driving the 1800 m 己15-24080 machine roadway,the detected q and s values were lower than the index values,no safety accidents occurred,with good outburst prevention and control effect.