摘要
分析了杨家坝铁矿地下铁矿床开采难度大的原因 ,进行了中深孔孔底起爆落矿工艺、孔网参数优化及孔底起爆的试验 。
The causes for the difficulties in underground mining of rangjiaba Iron Mine were analysed.The tests for the optimization of bottom hloe priming and ground breaking technology and spacing pattern parametersmand on the bottom hole priming were made.The test results are described in detail.
出处
《矿业快报》
2003年第9期7-10,共4页
Express Information of Mining Industry
关键词
铁矿床开采
孔底起爆
落矿工艺
孔网参数优化
Hard to mine iron deposit,Bottom hole priming,Optimization of spacing pattern parameters,Blasting effect
