摘要
对于在露天矿底部与地下矿顶部设置联合采矿层的露天－地下联合开采，依据露天－地下联合采矿的综合成本不超过地下开采成本原则，推导出露天开采极限深度计算公式，分析表明，设置联合采矿层的露天开采深度大于按传统方法确定的露天开采极限深度。
For the opencast-underground combined mining of the layer between the open-pit bottom andhe undergrround mine top, a formula for calculating the depth limit of opencasting mining is deduced accordingto the principle that the gross cost of opencast--underground combined mining should not exceed that of underground mining. The analysis has shown that the depth of OPencast mining for the combined mining is greaterthan that determined by the conventional method.
出处
《金属矿山》
CAS
北大核心
1999年第10期14-16,53,共4页
Metal Mine
关键词
露天-地下
联合采矿
开采境界
露天矿
Opencast-underground combined mining, Mining boundary, Economically rat ional stripping
