中深孔分段空场采矿法在高品位复杂难采厚矿段的应用

Application of medium-length hole sublevel open stoping to the mining of thick part of high grade complex orebody

主要论述了中深孔分段空场采矿法在遂昌金矿高品位复杂难采厚矿段的应用 ,经过中矿段Ⅳ - 4矿体 4 2 0～ 4 6 0m中段L2 6～L30线采场的试验 ,实践证明此方法在该矿段应用是合理的、切实可行的 ,并取得了良好的经济。

The application of medium length hole sublevel open stoping to the mining of thick part of high grade complex orebody is introduced.It shows from in situ experiments that the application of this method to the mining of such kind orbody is reasonable,feasible,having got marked social and economic benefit.