露天矿山台阶爆破过程中产生大块和根底的解决办法

Solutions of Lump Ore and Tight Bottom Produced in the Process of Bench Blasting of Open Pit Mine

对牛苦头露天台阶爆破过程中根底以及大块产生的原因以及部位进行了系统的分析,然后提出了优化调整爆破参数、严控穿爆管理、优化装药结构、采用V型的起爆方式,选择合适的起爆时间、加强爆破器材管理等措施,对改善露天矿的爆破质量、提高生产效率,降低采矿生产成本有一定的作用。

We analyzed the reasons and positions of lump ore and tight bottom production in the process of bench blasting of Niukutou open pit mine,and then we proposed to optimize and adjust blasting parameters,to strict control of blasting management,to optimize of charge structure,to use v type initiation mode,to select the proper initiation time,to strength the management of blasting equipment and so on,therefore the blasting quality of open pit mine is improved,the productivity is increased,and the production cost is reduced.