Through analyzing the blasting vibration test data,the fact could be found that the average vibrating velocity of down-role-hole MS blasting was reduced by 26.66%,compared with that of down-hol...

• 通过爆破震动测试数据可以看出；孔内孔间延时爆破的平均振速比孔间延时分层爆破降低26.；66%25；比孔间延时深孔爆破降低43