Abstract: Blasting is a process of an instant impact of huge energy release on medium. The seismic effect, shock wave and flying rock induced by blasting are commonly recognized as “three great public hazards” due to the destruction function of blasting. In combination with a practical engineering, the seismic effect of various types of blasting was studied and the effect of its different particle vibration velocities at various altitude differences on the safety of buildings or structures analyzed. Based on this, the blasthole pattern parameters were regulated so as to ensure the safe execution of the excavation blasting under complex topographical environment conditions, which has achieved good economic and social benefits.

Key words: Blasting-induced seism, Blasthole pattern parameter, Vibration velocity