摘要
文中详细地叙述了深孔落矿空场采矿法在峪耳崖金矿薄矿脉开采中的应用。指出对于矿岩中等稳固、矿岩界限明显、倾角变化不大的倾斜和急倾斜薄矿脉 ,采用深孔凿岩 ,“之”字形布孔 ,不耦合装药和微差爆破等技术和措施 ,可以大幅度提高矿块生产能力 ,控制损失、贫化 ,提高矿山综合经济效益。
The application of open stope of deep hole ore removal to the mining of narrow vein in Yu-Er-Ya Gold Mine is described in detail.It points out that the employment of deep hole drilling,Z-shaped pattern of laying blast holes,uncoupled charging and microsecond blast is capable of improving productivity of ore bolck,controlling the ore loss and dilution rates and raising economic benefit in the mining of dip and steep dip narrow vein,of which the ore rock is moderatly stable,the demarcation line between rock and ore is clear and the change of dip angle is not so great.
出处
《黄金》
CAS
2003年第4期25-28,共4页
Gold
