摘要
晋宁磷矿经过30多年的开采,在露天开采方面积累了比较成熟的经验,但随着开采向深部延伸,矿体赋存条件,磷矿品质发生较大变化,面临边坡安全、采矿成本、地质灾害、环境污染等一系列问题。对晋宁磷矿由露天开采转入地下开采,需要具备的条件进行了探讨。
After 30 years of mining, the Jinning phosphorite has accumulated more mature experience in open pit mining. But with the mining extends to deep, great change has been happened to ore body condi- tions and the rock quality, facing slope safety, mining costs, geological disasters and environmental pollution problems. The needed conditions against minging changed from open-pit to underground are discussed
出处
《云南化工》
CAS
2013年第1期56-59,共4页
Yunnan Chemical Technology
关键词
晋宁磷矿
露天开采
地下开采
Jinning phosphorite
open-pit mining
underground mining
