摘要
赤峰柴胡栏子金矿自1992年以来，采用上向水平干式充填法、普通凿岩爆破工艺，安全、高效并全部回采了露天矿底部矿体，取得了可观的经济效益。
Since 1992 Chaihulanzi Gold Mine in Chifeng City has been using horizontal upward dry - placed filling method and ordinary drilling and blasting technology to mine all of orebody at the bottom of the mine safely and efficiently, and considerable economic benefit has been obtained.
