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建国以来,我国铁矿开采有了很大发展。现已达到年产1亿吨铁矿石,可供年产3000万吨生铁。随着矿山生产的发展,露天开采技术也有了较大进步。露天开采的产量约占全国总产量的90％,重点露天铁矿开采的下降速度达到7.4(米/年),露天矿的工人劳动生产率平均达到5000(吨/人·年),最高的矿山已接近10000(吨/人·年)。特别是近几年来,露天开采技术发展比较快,科学研究取得了一些进展。
Since the founding of the People’s Republic of China, great progress has been made in iron ore mining in China. Has now reached an annual output of 100 million tons of iron ore, for an annual output of 30 million tons of pig iron. With the development of mine production, open pit mining technology has also made great progress. Open-pit mining accounts for about 90% of the country’s total output, the key open-pit mine declines 7.4% (m / yr), and open-pit mines produce an average of 5000 (tons / person / year) Close to 10000 (tons / person · year). Especially in recent years, the development of open pit technology is relatively fast, and some progress has been made in scientific research.