虎沟金矿21＃矿体采矿方法的改进与实践

The Improvement and Application of Mining Methods in 21# Orebody of Hugou Gold Mine

介绍了虎沟金矿普通浅孔留矿法及其应用于 2 1 #矿体时存在的问题 ,提出了脉外开拓、平底结构、废石墙支护的浅孔留矿法变形方案。实践表明 ,该方案有利于探采结合和安全状况的改善 ,有利于损失贫化的控制和矿山效益的提高 。

This paper illustrates the standard scheme of shallow boreholes shrinkage stoping, explains the problems of its application in 21 # orebody of Hugou Gold Mine, Based on the problems, this paper presents an improving scheme, which differs from the standard in its extemal development, its plain bottom structure and its waste rock wall support. Practice shows that the latter is a good scheme and worth adopting, because it is of much benefit to the combination of exploration and mining, to the management of ore loss and dilution, to the underground safery and to the mine's beneficial result.