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科夫多尔采选公司露天矿的设计深度,从最高封闭口标高算起为560米。目前,采矿作业正在120米深处进行,如果包括山坡露天矿,则深度为230米。1975～1980年,由于矿床北段投产并进行强化开采,露天矿的年下降速度降低到6～8米,但是从1982年开始,年下降速度将达到12～15米。露天矿的矿岩年采剥总量,1981年约为4000万吨,近2～3年内应当达到6500～
The depth of the design of the Cobdor mining company’s open pit mine is 560 meters from the highest closed mark height. At present, mining operations are taking place at a depth of 120 meters, with a depth of 230 meters if a hillside open pit mine is included. From 1975 to 1980, due to the commencement of the northern section of the deposit and intensive mining, the annual decline rate of open-pit mines was reduced to 6-8 meters. However, since 1982, the annual decline rate will reach 12-15 meters. Opencast mining ore total annual mining, in 1981 about 40 million tons, nearly 2 to 3 years should reach 6500 ~