罗开军;庙延钢;张智宇;王国华;
LUO Kai-jun1,2,MIAO Yan-gang1,ZHANG Zhi-yu1,WANG Guo-hua1(1.Kunming University of Science and Technology,Kunming 650093,China;2.Lanjian Iron Mine of Pangang(Group) Mining Industry Company,Panzhihua 617025,Sichuan,China)

• 1:昆明理工大学
• 2:昆明理工大学
• 3:昆明理工大学
• 4:昆明理工大学 昆明650093

摘要(Abstract)：

随着兰尖铁矿采场水平逐年下降,爆破震动对平硐的安全影响日益突出。通过理论分析及现场试验,采用孔间延时爆破、孔间分层延时爆破、孔内孔间延时爆破三种减震爆破方法。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%,比孔间延时深孔爆破降低43.85%,爆破降震效果比较明显,有效地保护了平硐溜井。
With the progress of the mining operation in Lanjian Iron Ore year on year the effect of blasting vibration on safety of adit is increasing.Based on theoretical analysis and the field test,row-hole MS blasting,down-hole slice MS blasting and down-role-hole MS blasting method are practiced to reduce blasting vibration.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-hole slice MS blasting,and reduced by 43.85%,compared with that of row-hole MS blasting.The down-role-hole MS blasting could have a dramatic vibration reduction function and hence could protect the adit effectively.

关键词(KeyWords)： 兰尖铁矿;平硐溜井;爆破减震;延时爆破
Lanjian Iron Ore;Drift-repass;Blasting vibration reduction;MS blasting

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 罗开军;庙延钢;张智宇;王国华;
LUO Kai-jun1,2,MIAO Yan-gang1,ZHANG Zhi-yu1,WANG Guo-hua1(1.Kunming University of Science and Technology,Kunming 650093,China;2.Lanjian Iron Mine of Pangang(Group) Mining Industry Company,Panzhihua 617025,Sichuan,China)

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