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鞍钢矿山公司大孤山铁矿从1916年开始开采。1970年转入深凹露天纵向开采,现开采深度150多米,开采长度1600米,采用45 R, 60R牙轮钻钻机钻孔,4米~(3)8米~(3)电铲装运。
Anshan Iron and Steel Company Dagushan iron ore mining began in 1916. In 1970, it was converted into a deep open-air longitudinal mining operation. The mining depth is more than 150 meters and the mining length is 1,600 meters. The drilling is carried out with a 45 R, 60R roller drilling rig and a 4m ~ (3) 8m ~ (3) electric shovel.