Control Principle and Its Application of Rock Burst in Roadway Driving Along Goaf with Outburst-Proneness Surrounding Rocks

Aimed at controlling the stability of surrounding rocks of roadway driving along goaf in deep coal seam with outburst-proneness,intensity weakening mechanisms were proposed.Including stress controlling,support system designed and technical measured,which included rational design of narrow pillar's width and roadway support system,were proposed by analyzing the failure characteristics and influencing factors of the roadway.Studies show that design reasonable narrow pillar's width can help reducing stress of surrounding rocks.Creating soft interlayer with external measures can release stress and absorb impact energy,and high-performance bolting system can enhance the strength of surrounding rocks.The integrated approaches can make stability controlling of roadway driving along goaf in deep coal seam with outburst-proneness effectively.