论文部分内容阅读
一、概况 金城金矿下设三个分矿一个采区,由红布、东季、马塘、马塘二采等分矿组成。该矿矿床赋存于焦家主断裂黄铁绢英岩化蚀变带中,属于“焦家式”破碎带蚀变岩型金矿床。矿体下盘比较稳固,上盘破碎,矿体中节理裂隙发育,稳固性较差,属于难采矿体。特别是东季矿区,矿岩极为破碎,采准巷道掘进与维护十分困难,厩于极破碎松散难采矿体。
First, an overview Jincheng gold mine consists of three sub-ore mining area, the red cloth, the East quarter, Matang, Matang two mining sub-sub-mine composition. The ore deposit occurs in the Jiaojia main fault yellowstone sericite alteration zone and belongs to the “Jiaojia” crustal altered rock type gold deposit. Under the ore body is relatively stable, the plate broken, the development of joint fissures in ore bodies, poor stability, are difficult to mine. Especially in the eastern quarry, the ore rock is very fragmented and the excavation and maintenance of the quarry roadway is very difficult. The stables are extremely fragmented and difficult to mine.