冬瓜山铜矿阶段空场嗣后充填采矿法的底部结构选择及优化

SELECTION AND OPTIMIZATION OF BOTTOM TEXTURE FOR OPEN AND DELAYED FILLING STOPING AT DONGGUASHAN COPPER MINE

结合冬瓜山矿床开采技术条件和所选用的采矿方法,通过对平底式与堑沟式底部结构的比较和对堑沟式底部结构的选择与优化,提出了适合冬瓜山矿床开采的折线型长进路服务同侧双采场的堑沟式底部结构。该结构所具有的一系列显著优点,对实现冬瓜山矿床安全、高效、高强度和低成本开采,将提供重要保障。

In the light of mining conditions and selected mining method,comparison between two bottom textures,plane and trench bottoms,is carried out and selection and optimization of the trench bottom are made.It is indicated that the trench bottom with long and broken-line access drifts and for two co-side stopes is suitable for mining the orebodies in Dongguashan Mine.The selected bottom texture has a lot of obvious advantages,thus ensuring the safety and low cost in high-efficient mining.