Application of grey catastrophe theory and acoustic emission in rock burst prediction

According to mechanism of acoustic emission,this paper sets up grey-cusp catastrophe model of acoustic emission parameter by combining grey theory and catastrophe theory.The mechanical properties of rocks and acoustic emission characteristics are obtained to research failure law of rocks by experiments on acoustic emission(AE) characteristics of full-regime rock failure on stiffness test machine(MTS).Rock burst of some mine is predicted by model and acoustic emission parameter from experiments.Critical value of acoustic emission parameter of laneway rock burst is obtained.