摘要
Abstract
In Wanghe and Magou ore sections of Liba Gold Mine,the mining area is mainly 45°～75° Angle construction is the main construction,and its mining area has developed structural cracks,serious rock crushing,poor cementation and collapse,which leads to difficulties in drilling construction.In view of this kind of complex mine strata,the advanced fully hydraulic crawler power head CSD1800X drilling rig was introduced for construction,and the construction technology of low gear,low rotation speed,small pump capacity,light drilling,fishing,drilling+casing+diamond rope coring+semi-closed pipe was adopted,casing+compound low solid non-dispersible flushing fluid was used for wall protection,and ball-head impregnated diamond bit was preferred for construction,which effectively solved the problem of drilling in complex mine strata of Wanghe and Magou.关键词
钻探/绳索取芯/冲洗液/李坝金矿/甘肃Key words
drilling/Rope coring/Flushing liquid/Liba gold mine/Gansu分类
天文与地球科学
