矿岩坚韧矿床开采的爆破技术研究  

Research on Blasting Technology for Hard and Tenacious Rock Deposit Development

作　　者：姚志华 

机构地区：[1]易门矿务局,云南玉溪653100

出　　处：《矿业研究与开发》2001年第5期38-40,共3页Mining Research and Development

摘　　要：大红山铜铁矿床矿岩坚硬 ,韧性好 ,节理裂隙发育 ,矿岩爆破性能差。在该矿的爆破技术研究中 ,根据系列爆破漏斗试验来选定炸药种类和相关爆破参数 ,根据对节理裂隙的调查来确定爆破最小抵抗线方向 ,从而大大改善了爆破效果 ,降低了爆破成本 ,减少了爆破大块产出 。In Dahongshan Copper-Iron Mine, the deposit consists of hard and tenacious ore/rock with well-developed joints which lead to poor fragmentation performance. In carrying out a research on blasting technology in the mine, types of explosives and related blasting parameters are determined based on a series of blasting crater experiments. The direction of burden is determined according to a survey on jointed fissures. As a result, the fragmentation performances are greatly enhanced, leading to reduced blasting cost, reduced occurrences of oversized boulders, and increased mining capacity.

关 键 词：坚韧矿岩 节理裂隙 爆破漏斗试验 最小抵抗线方向 爆破技术 

分 类 号：TD235[矿业工程—矿井建设]