摘要
在详细分析大广山矿一期开采残留矿柱分布特征基础上 ,提出了崩落法结合受矿漏斗出矿的联合矿柱回采法 ,即先人工崩落矿柱 ,利用放矿漏斗在覆盖岩层下集中放矿。对分布矿柱回收工程的 17m厚预留矿体隔层的稳定性和生产可靠性进行了分析评价。经济分析评价结果说明矿柱回收工程具有较好的社会效益和经济效益。
Based on the detailed analysis of the distribution characteristics of the residual pillars left in the first mining phase of Daguangshan Mine, an ore pillar extraction method combining caving with drawing funnel was proposed, that is, to draw the ore concentratedly by drawing funnel under the overburden strata after manual caving of the ore pillars. Analysis and assesment of the stability and production reliability of 17m thick preserved level partition pillar in the ore pillar recovery project were made. Economical assesment results have proved both social and economical benefits of this project.
出处
《金属矿山》
CAS
北大核心
2002年第12期23-25,52,共4页
Metal Mine
关键词
可行性
残留矿柱
矿柱回采
矿体隔层
可靠性分析
稳定性
Residual ore pillar, Ore pillar extraction, Level partition pillor, Reliability analysis
