浅孔采矿方法在缓倾斜中厚矿体中的应用

根据大红山铜矿矿体赋存条件，结合矿山常用的有底柱小中段空场嗣后充填采矿法的相关情况，为了有效地控制干吨采掘比和贫损指标、缩短采掘周期，在回采倾角大、分支复合严重、构造复杂地段的矿体时，分别采用了无底柱的浅孔房柱法、局部有底柱的浅孔房柱法，在空场法盘区全面推广浅孔留矿法回采切割槽，从而有效地弥补了小中段空场法的不足和提高了切割槽拉槽质量，取得了较好的经济效益，实践证明这是一种适合大红山铜矿的有效的辅助采矿方法。

Application of Short-Hole Method in Mining Gently Inclined Medium Thick Orebody

In light of the orebody occurrence condtions in Dahongshan Mine, in combination of the related condintions of small and medium sublevel open stoping with backfill and pillars commonly used in mines and in order to effectively control the driving to stoping ratio per thousand t and the dilution and loss indexes, shorten the mining cycle and effectively extract the orebodies characterized by large dip, serious branch orebody compounding and complicated structure, short-hole room-pillar method with no floor pillar and short-hole room-pillar method with local floor pillar were used in the ore extraction and short-hole cut-off shrink method was fully spread in the open stoping with pillar, which has effectively made up the deficiency of small and medium sublevel open stoping, improved the quality of undercut slot and undercut trough and recovered the resource, thus achieving good economic benefit. The practice proves that it is an effective auxiliary mining method suitable for Danhongshan Copper Mine.