大孔距小排距的孔网参数在中深孔爆破中的应用

Application of Hole Net Parameter of Big Pitch and Small Array Pitch in the Deep Hole Explo-sion

天铁集团的石矿厂多年来爆破效果不理想,粉矿率高,通过对爆破孔网参数的优化,采用大孔距、小排距的孔网参数在中深孔爆破中取得了较好的效果。

For many years the explosion result is not ideal in mining Quarry of Tiantie Group and the powder ore is higher.By optimizing the hole net parameter of th e big pitch and small array pitch,the explosion in the medium and deep hole sho wed good result.