中深孔一次爆破成井悬顶爆破处理技术研究  

Research on the Blasting Treatment Technology of Medium and Deep Hole

作　　者：王志东 Wang Zhidong(Fujian MaKeng Mining Co.,Ltd.,Longyan 364000,Fujian)

机构地区：[1]福建马坑矿业股份有限公司,福建龙岩364000

出　　处：《福建冶金》2024年第2期4-6,31,共4页Fujian Metallurgy

摘　　要：随着井下作业设备大型化、机械化的推进,普通法施工天井工艺将逐步被中深孔一次爆破成井工艺所淘汰,由于地质条件的多变性、中深孔凿岩偏斜率难以控制等问题,中深孔一次爆破成井偶尔会出现顶部未爆出而悬顶现象。为安全处理该问题,马坑铁矿运用药室爆破原理分析,确定合理的装药量,并经实际应用后,成功解决中深孔一次爆破成井悬顶问题,该处理方式解决井下天井悬顶处理难度大的问题,保证了矿山生产安全及稳定。With the advance of downhole equipment,mechanization,common method construction patio process will gradually be eliminated by deep hole blasting blast process,due to the variable geological conditions,deep hole rock slope is difficult to control,deep hole blasting blast occasionally appear the top is not out and hanging roof phenomenon.In order to deal with this problem safely,Makeng Iron Mine uses the principle of medicine chamber blasting analysis to determine the reasonable loading amount,and after practical application,successfully solves the problem of medium and deep hole blasting.This treatment method solves the difficult problem of the hanging roof of the underground patio,and ensures the safety and stability of mine production.

关 键 词：中深孔一次爆破成井 悬顶 药室爆破 

分 类 号：TD235[矿业工程—矿井建设]