COMPREHENSIVE ANALYSIS OF CONTROLLING TECHNOLOGY OF BLASTING VIBRATION EFFECT

Blasting vibration is one of the predominant damages in engineering blasting.The damage strength of blasting vibration increases with the increasing in released energy from the charge explosion.The paper discussed the methods of reducing blasting vibration in the two aspects of controlling of the blasting energy source and blasting energy transformation,including reasonably selecting the kind of explosive,strictly controlling the volume of detonating charge,applying micro charge in each hole and optimizing the charge structure,employing millisecond blasting,digging ditches which used to reduce vibration,drilling holes in order to lower the vibration at the slope and using presplitting blasting technology and so on.Meanwhile,the author emphasized the importance of the monitoring of blasting vibration at spot and of studying on attenuation law of blasting seismic wave so as to assure a safety blast.