摘要
锡铁山铅锌矿随着开采深度的下降,薄矿体逐渐增加,应用浅孔留矿法所占的比例越来越大。本文将浅孔留矿法形成底部结构的浅孔扩漏、拉底两步法改为中深孔扩漏拉底一步到位法。经过应用,证明这种方法提高了劳动生产率,降低了生产成本,取得了很好的经济和社会效益。
With the fall of mining depth in Xitie Mountain Lead-Zinc Mine, the graduaUy increasing of narrow vein, the short shrinkage method becomes more and more adoption. In this paper, the short hole crater reaming and undercutting two steps method, which is formed bottom structure in short shrinkage method, is changed into one step that middle-deep hole crater reaming and undercutting method. The application results show that the productivity is improved, the productive cost is reduced, the good economy and society benefits are also got.
出处
《矿冶》
CAS
2008年第3期18-20,25,共4页
Mining And Metallurgy
关键词
浅孔留矿法
中深孔
扩漏拉底
short shrinkage method
middle-deep hole
crater reaming and undercutting
