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金厂峪金矿区断裂构造发育,矿脉赋存于断裂带中、主要由含金石英脉和含金绢云母片岩-石英脉组成.同一钻孔中各类岩石交错出现,可钻性差异很大,特别是有厚薄不等的石英脉出现,增加了设计人造金刚石钻头结构和钻进工艺的难度. 国内黄金矿山的勘探,历来采用坑探:劳动强度大、工作效率低、成本高,不易实现机械化生产.为了实现“以钻代坑”的技术改革,该矿决定开展金刚石钻探.1980年1月该矿从加拿大引进JKS-25型坑道金刚石钻机、钻具和人造金刚石孕镶钻头,并投入
The fault structure of the Jinchangyu gold deposit is developed, and the veins are found in the fault zone, and are mainly composed of gold-bearing quartz veins and gold-bearing sericite-quartz veins. Various types of rocks in the same borehole are staggered, Large, especially with different thickness of the quartz vein appears, increasing the difficulty of designing the artificial diamond bit structure and drilling technology.Population of gold mines in the country, traditionally used pit exploration: labor-intensive, low efficiency, high cost, not easy To achieve mechanized production.In order to achieve “to replace the pit” technical reform, the mine decided to carry out diamond drilling in January 1980 the mine from Canada to introduce JKS-25 type tunnel diamond drilling rig, drill and artificial diamond impregnated drill, And invest