Method for reducing blasting vibration of tunneling

A method for reducing blasting vibration of tunneling, comprising:

• drilling a plurality of groups of cut holes on a wall of a tunnel;
• carrying out a first test blasting on a first group of cut holes;
• carrying out the first test blasting according to a first set of parameters comprising a period of a vibration wave of the first test blasting;
• calculating a first interval that equals one half of the time period from a peak to an adjacent trough in the vibration wave;
• carrying out a second test blasting on a second group of cut holes;
• carrying out the second test blasting according to a second set of parameters comprising a period of a vibration wave of the second test blasting;
• calculating a second interval that equals one half of the time period from a peak to an adjacent trough in the vibration wave in the second test blasting;
• and
• comparing a value of the first interval and a value of the second interval and assigning the value of the smaller interval as an interval for a formal blasting;
• blasting a remainder of the plurality of groups of cut holes according to the interval for the formal blasting;
• and
• blasting additional blast holes in the tunnel according to inter-row group millisecond blasting or single hole millisecond blasting according to an interval having a value that is the larger of the first interval and the second interval.