Experimental Research on the Master Frequency of Blasting Seismic Wave

Research purposes: The master frequency of vibration is one of the issues being paid attention to by all researchers on the blasting seismic wave because it has the obvious effect on the building damage,so it has a practical significance to do study on the blasting seismic wave.The purpose of the experimental study presented in this paper is to study the relation between the change regulation of the master frequency of blasting seismic wave and the proportional explosives for starting explosion at the same stage and the distance from the test point to the explosive area.Research conclusions:In this paper,based on the theory on the seismic wave transmitting in sticky elastic medium,the function relation between the blasting vibration frequency and main influence factors,such as explosive and distance,is put forward,the regression analysis is made for the real monitored data on the blasting vibration obtained in Shenzheng Meishi Power Plant and the prediction formula for the master frequency under the special blasting condition is obtained.These can be as the practical and theoretical basis for studying the attenuation regulation of blasting vibration frequency and for prediction of the master frequency of the similar blasting.The study finds the master frequency of the blasting vibration decreases with the increases of the explosive and distance.