摘要
通过鞍钢弓长岭井下铁矿西区试验矿块有底柱阶段崩落法的试验研究，提出了适合该矿体开采条件的采矿方法和底部结构参数，应用简单易行的两步骤放矿制度，采取加强凿岩爆破质量控制和放矿管理等综合技术措施，大幅度降低了矿石的损失贫化。
Based on the test and study of block caving with floor pillar system used in test block of west mining area in Gongchangling Underground Iron Mine,Anshan Iron and Steel Company,the mining method and bottom structure to be suitable for mining condition of this orebody are put forward.Due to use the two step drawing system and technical measures of increase in ore quality by drilling blasting and drawing management,the ore loss and dilution are reduced significantly,the fine technical and economical index are obtained.
出处
《金属矿山》
CAS
北大核心
1997年第1期14-18,共5页
Metal Mine
关键词
采矿
矿石
损失
贫化
综合技术措施
Block caving with floor pillar system,Ore loss and dilution,Bottom structure,Drawing system
