Application of grouting bed separation technology in the prevention and control of rock burst

According to current situation of rock burst induced by super-thick conglomerate strata movement in Huafeng mine, the mechanism of grouting bed separation to control overlying strata movement is analyzed. In combination with grouting bed separation engineering practice, application effect of grouting bed separation technology in coal mine with potential rock burst is discussed. By grouting bed separation, the reducing subsidence coefficient is over 50%. Grouting bed separation provided effective control overlying strata collapse movement, so that hazards of rock burst induced by super-thick conglomerate strata fracture and collapse are greatly diminished. As a positive method to control mine disaster, grouting bed separation technology implemented safety and green mining and obtained obvious economic, social benefits.