Model to predict overpressure peak of mine gas explosion impact wave

With the theoretical analysis on the overpressure peak of the impact wave in the air,base on the TNT equivalent method applied to the study on the overpressure data of the gas explosion in mine roadway,a prediction model of the gas explosion overpressure in the mine roadway was established.With the comparison with the experiment measured values,the model was modified.The prediction model could provide the theoretical bases to the design of the mine flame proof safety facilities,he evaluation of the accident disaster degree and the examination of the safety facilities.