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在苏联矿山中广泛采用空场采矿法。在克里沃罗格矿区这种采矿方法在矿石产量中的比重多年来一直保持同一个水平,1960年为29.9%,1961年为28.4%。在围岩稳固矿石坚硬的矿山,这些方法将继续广泛应用于今后的深部开采中。
In the Soviet Union mine widely used open field mining law. The proportion of this mining method at the Kryvo Roogh mine in terms of ore production has remained at the same level for many years, from 29.9% in 1960 to 28.4% in 1961. These mines will continue to be used extensively in deep mining in the future, due to their solid mines in the surrounding rock.