Intensity weakening theory for rockburst and its application

Abstract

Put forward the intensity weakening theory for rockburst,it is the strength and rockburst liability of the coal-rock body reduced to weaken the danger of rockburst by the loosing coal-rock body.The peak district of the stress move to the deep department of rock body and the concentration degree of the stress.The intensity of rock burst is reduced after taking the measures of weakening rockburst in dangerous district of rockburst.The rockburst is eliminated when making the elastic energy below the standard with prevention methods.The intensity weakening theory for rockburst was got effective result in production practice of Sanhejian Mine.