小巷大柱分采法在镰子沟金矿Ⅳ号矿体的应用

Application of Small Roadway and Large Pillar Separation Method in No.IV Orebody of Lianzigou Gold Mine

总结全面法和房柱法演变而成的小巷大柱分采法在镰子沟金矿Ⅳ号矿体开采过程中的应用。经过生产证明,该方法能够有效解决厚度小、倾角缓、产状复杂的低品位矿体在开采中存在的难题,并取得较好的经济效益。

Summarize the application of small roadway and large pillar mining method evolved from comprehensive method and room-pillar method in the mining process of No.IV orebody in Lianzigou gold mine.The production proves that this method can effectively solve the problems existing in the mining of low-grade orebodies with small thickness,gentle dip angle and complex occurrence,and achieve better economic results.