鑫汇金矿不稳固中厚矿体采矿方法探讨

Discussion on mining methods of mid-thick orebodies in Xinhui Gold Mine

鑫汇金矿属高品位缓倾斜至倾斜中厚矿体 ,矿体变化很大 ,主要采用两步骤回采的房柱采矿法回采 ,采后用尾砂充填。该法在回采矿体顶板破碎、矿体倾角较大时 ,贫化损失较大。为此 ,根据该类矿体的赋存条件 ,采用技术经济分析的方法 ,对可用的几种采矿方案进行了比较分析。分析认为 ,分层充填采矿法能较好地适应矿体的变化 ,提高采矿的安全性、降低采矿贫化损失 ,有较好的技术经济效果 ,文中介绍了该分析研究过程及推荐方案主要特征。

The ore bodies of Xinhui Gold Deposit are slightly inclined to inclined,high in tenor and middle in thickness.The ore bodies change significantly.This gold mine briefly took two step stoping chamber pillar method,after mining,filled the stope with tail.When The top wall of the stoped ore bodies is broken and the ore bodies dip steeply,the impoverished loss is large.For the sake of this,based on the occurrence of these ore bodies,several mining methods that can be used are analysed and compared with one another by technical economic analysis.The results exhibited that sub filling can properly suit for the change of ore bodies,enhance the safety of mining,reduce the impoverished loss during mining,can make good technicl and economic effect.This essay introduced the research and analysis process as well as the basic futrure of this method.