深孔梯段控制爆破技术在露天矿改扩建中的应用

Application of deep hole bench controlled blasting technology in open pit reconstruction and expansion

本次露天矿改扩建工程位于玉龙铜矿。本文通过设计和调整爆破参数,在场地平整后进行布孔,对主炮孔采用垂直钻孔方式,调整炮孔的深度,在满足矿岩爆破粒径要求后,布置深孔梯段爆破起爆网路,实现露天矿改扩建;通过爆破安全距离验算,保证深孔梯段控制爆破技术在露天矿改扩建中的安全应用。

The reconstruction and expansion project of open pit mine is located in Yulong Copper Mine.In this paper,the blasting parameters were designed and adjusted,and the holes were arranged behind leveling ground.The main holes were drilled vertically with the depth of the holes adjusted.After meeting the requirements of blasting particle size,the deep hole bench blasting initiation network was arranged.The safety distance of the blasting was checked to ensure the safety of the application of the deep hole bench controlled blasting technology in the reconstruction and expansion of open pit mine.