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在1976年以前科夫多尔露天铁矿仅开采该矿床的南部。上科夫多尔河和科夫多尔湖西部横断该矿体的北部。露天矿与湖之间隔有100多米高的安全矿柱。从河和湖方面来的涌水量平均为3000米~3/时,其中2000米~3水由一排疏干降水孔给截住;其余1000米~3水由设置在露天矿最低水平的半固定式泵站排出。 1976年开始开采矿床的北部区段。采矿工程要在包括进水沟、出水沟、排水沟、隧洞、坝和堤等整套工程构筑物建成投产之后才有
By 1976, the Cobdor open-pit iron mine was only mined in the southern part of the deposit. The Upper Covend River and the west of Covendorre traverse the northern part of the ore body. There are more than 100 meters high safety pillars between open pit and lake. The average inflow of water from rivers and lakes is 3,000 m 3 / h, of which 2,000 m -3 are cut off by a row of dewatering and precipitation holes. The remaining 1,000 m 3 are semi-fixed by the lowest level of open pit mines Pumping station discharge. 1976 began mining the northern section of the deposit. Mining engineering to be included in the gutters, drains, drains, tunnels, dams and embankments and other projects completed and put into operation after the construction