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毋庸置疑,在今后十年内露天开采方法将继续得到发展。预测今后露天开采的矿岩运输量将达到250～260亿 t,而1987年为140亿 t。在矿石开采总量中,露天开采所占比重保持在70%的水平。露天开采规模扩大的过程是在矿山地质和经济地理因素日趋复杂的条件下进行的,这些因素中特别重要的是露天开采深度、矿岩运距以及斜坡道所占比重急剧增加。目前,一些露天矿的深度已超过300～400m(例如,索科洛夫和萨尔拜露天矿,克里沃罗格矿区的一些露天矿,索尔、米尔年、穆仑陶露天矿)。在克里沃罗格矿区,最近10年从采深超过200m 的水平上采出矿石所占比重增加了6倍。今后,在目前生产着的黑色冶金露天矿中,有20个露天矿的采深将达到400m。露天铁矿的最大采深将
Undoubtedly, the method of open pit mining will continue to evolve over the next ten years. It is predicted that the open-pit ore and rock transportation will reach between 250 and 26 billion tons in the future, compared with 14 billion tons in 1987. In the total ore mining, the proportion of open-pit mining remained at 70% level. The process of open-pit mining is expanding under the conditions of increasingly complex geologic and economic geology of the mine. Of particular importance to these factors is the depth of open-pit mining and the dramatic increase in ore-rock distance and the proportion of ramp. At present, the depth of some open-pit mines has exceeded 300-400 m (for example, Sokolov and Salbaai opencast mines, some of the open pit mines in the Krivoy Rug mining area, Saul, Mill, and Muluntao opencast). In the Krivovog mine, the share of ore mined at a depth of more than 200 m in the last 10 years has increased six-fold. In the future, in the current production of black metallurgical open pit mine, 20 open pit mining depth will reach 400m. The largest mining of open-pit iron ore will be