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我院采矿系与马鞍山矿山研究院,鞍钢大孤山铁矿和鞍钢矿山研究所等合作,以大孤山铁矿作为试验点,开展了铁路运输露天矿陡帮开采的可行性研究,对陡帮和缓帮开采两个方案进行了技术经济比较,得出铁路运输开拓时期(至1994年),陡帮开采比缓帮开采推迟剥岩量4300万吨,可多获利润净现值5900万元。
The mining department of our institute cooperated with the Maanshan Mining Research Institute, the Anshan Dagushan Iron Mine and the Anshan Iron and Steel Research Institute to carry out the feasibility study on the steep rock mining in the open-pit railway with the Dagushan Iron Mine as the test point. Technical and economic comparisons were made between the two schemes to help alleviate and assist the exploitation of the mines. It was concluded that the period of railway transportation exploitation (up to 1994) was 43 million tons more than that of the slow-bottom mined mining operations and the net profit of 59 million yuan .