地下采场中深孔爆破参数设计与应用

Design and application of medium-length hole blasting parameters in underground stope

为改善地下采场爆破效果,依据首云铁矿矿岩特性及开采现状,对中深孔爆破参数进行优化计算,确定了各参数的取值范围。工业试验表明,采用优化的爆破参数后,矿石块度更加均匀,提高了爆破质量。

In order to improve the blasting effect of underground stope, the blasting parameters of medium-length hole were calculated based on the features of mine rocks and the exploitation status of Shouyun Iron Mine, and the value range of each parameter was determined. The field industrial test showed that the blasting fragmentation was more even after using the optimized blasting parameters. The blasting quality was improved, and the production cost was decreased.