摘要
由于铜矿采场矿体包含诸多不可预见性的节理、裂隙、断层等结构弱面,容易引发采场顶板跨落,造成矿石损失和重大安全隐患,增加了矿山安全工作的难度。通过分析,获各琦铜矿中两步回采方法在生产技术上可行、经济上合理、安全上可靠,可在品位高、矿体夹石少的矿房中全面推广应用。
Due to the existence of many uncertain weak planes, such as joints, fracture and faults, in the ore bodies of copper mines, the stope roof may collapse easily, causing ore loss and great hidden danger, which will threaten the production safety of undermine. Through the analysis in Huogeqi Copper Mine, two-step mining meth- od is a practicable way to alleviate above problems and it is feasible in technique, reasonable in economic and reliable in safety. Two-step mining method can be widely applied in room with high grade and little bands in ore bodies in the future.
出处
《有色金属（矿山部分）》
2012年第3期30-33,共4页
NONFERROUS METALS(Mining Section）
关键词
两步回采
充填体
顶板
two-step mining
filling body
roof
