凤凰银矿扇形深孔爆破参数优化与应用

凤凰银矿地下采区采用无底柱分段崩落法深孔爆破,为改善爆破效果,稳定生产进度,根据矿山采区的实际地质特性与开采现状,针对性地对采区扇形深孔爆破参数进行了优化,加大了爆破规模,针对性的设计了爆破网络,应用到180中段10-12采场之间的Ⅰ-①、Ⅰ-②矿体,实验表明:采用优化后的爆破参数后,矿石大块率明显降低,爆破有害效应得到有效控制,保证了矿山安全持续稳定的生产。

Optimization and Application of Fan-shaped Deep Hole Blasting Parameters in Feng Huang Silver Mine

In order to improve the blasting effect and production progress,according to the actual geological characteristics and mining status of the mining area,the fan-shaped deep hole blasting parameters in the mining area were optimized,and the blasting model was increased,which was applied to the I-①and I-②ore bodies between 10-12 stopes in the middle section of 180.The experiment shows that:in order to improve the blasting effect and improve the production progress,the fan-shaped deep hole blasting parameters in the mining area were optimized after the optimized blasting parameters,the ore block rate is obviously reduced,and the harmful effect of blasting is effectively controlled,which ensures the safe and stable production of the mine.