地下矿山中深孔爆破漏斗试验应用研究

Study on Application of Medium-length Hole Blasting Crater Test in Underground Mine

为了解决地下矿山中深孔爆破孔网参数复杂的问题,寻求合理的中孔落矿参数,在羊拉铜矿3390中段一单元51#线穿脉巷道进行系列爆破漏斗试验,并根据爆破漏斗理论对试验结果进行推导,得到适合该采场的爆破参数范围。进而,在47#测线以南3390中段一单元5盘区进行大爆破落矿试验,结果表明,根据系列爆破漏斗试验推导出的参数,比较符合该采区的生产实际,改善了爆破效果,对矿山的安全经济生产产生了实际意义。

In order to solve the problem that the deep hole blasting hole net parameters in underground mine are complex and seekreasonable hole caving parameters,series of blasting funnel test are conducted in51#line branch roadway of Yangla Copper Mine3390middle section unit1,and the test results are deduced according to the blasting crater theory to obtained suitable blasting parameters of thestope.Then,large blasting mining experiment is conducted in panel5,unit1of3390middle section in the south of the47#line.Theresults show that the parameters based on serial blasting crater test are suitable for the actual production of the mining area,and hasimproved the blasting effect and has a practical significance for the safe and economic production of mines.