VIBRATION-REDUCED BLASTING METHOD, AND METHOD OF DECIDING TIME INTERVAL OF DELAYED INITIATION

摘要

PROBLEM TO BE SOLVED: To provide a blasting method which can suppress the vibration caused by blasting. ;SOLUTION: The vibration occurring at blasting is reduced, by dividing a plurality of initiation holes into a plurality of initiation hole groups, and deciding the time interval of delayed initiation between the groups, simulating the vibration waveform measured in advance so that it may be reduced by interference.;COPYRIGHT: (C)2001,JPO