全厚进路和分层崩落联合采矿法试验研究

Full thickness approach and caving mining method combined experimental study

拉么锌矿鱼泉洞矿体在倾斜、低品位的薄矿体开采中,试验研究采用全厚进路和分层崩落联合采矿法试验研究。矿体的矿岩硬度系数f值=6～8,层理发育,平均地质品位Zn=3%～4%;Cu=0.3%～0.5%,原来选择多分段全面留矿法开采方案,后来因为平均品位低而改用这种采矿方法。

Guangxi Gold Mining Company Limited of lame zinc mine fish springs cave orebody in tilt, low grade and thin ore body mining, test research using full thickness approach and caving mining method combined experimental study. Ore rock hardness coefficient f = 6 - 8, bedding, average geological grade Zn = 3%~ 4%; Cu = 0.3% - 0.5%, the original choice of multiple segments of overall shrinkage stoping scheme, later because the average grade is low and the use of this mining method.