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园家或地区加拿大一格兰达克铜矿l I 700 { l ; I ‘ t 三·八 J矿 山 名 称月进速度作业天数作业制度掘进工人效巷遭断面岩石硬度凿岩机型号凿岩机台致炮眼数目炮眼深度掏槽类型爆破效率装岩机型号转载设备运载设备铬车设施 支护型式掘进循环数平均循环进尺平均日进尺最高日进
Parkland or a Canadian Grand Grant copper mine l 700 (l; I ’t 三 八 八 J name of the mine on the rate of progress in the number of days operating system tunneling workers Lane Lane section of the rock hardness Rock Drill Type Drilling machine Taiwan to the number of holes in the hole Deep undercut type Blasting efficiency Rock loader model Reprint equipment delivery equipment Chromium truck facilities Type of support Digging cycle The average cycle footage The average daily footage Highest 日 进