THE TUNNEL BLASTING METHOD USING LARGE HOLE BORING AND LOW VIBRATION EXPLOSIVES

摘要

The present invention relates to a tunnel blasting method using large diameter empty holes and microvibration explosives capable of increasing the efficiency of blasting and reducing vibration by optimizing the amount of charging of microvibration explosives and the arrangements of large diameter empty holes and charge holes around the large diameter empty holes while using the microvibration explosives capable of reducing vibration.