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尽管地面采矿作业占优势,但工业分析家予言,新的采矿技术将是煤矿工业研究和大力发展的焦点所在国家煤矿学会对会长Joph YanciK说,在21世纪初将需要的技术改进就像钟摆运动那样地走向地下采掘。他予计2000年地下年产量将增加85％至四亿五千万吨。他又说在那年里地面上的采矿作业虽然估计煤的总产量为75～80％可达二十亿吨。刺激地下采矿技术改进的一个主要因素是藏量的分布。ganik说,在一个Bfu基础上,
Despite the advantages of surface mining operations, industrial analysts have said that new mining technologies will be the focus of much research and development in the coal mining industry. National Coal Mining Society told President Joph YanciK that technological improvements needed in the early 2000s will be like pendulums As the movement to underground mining. He predicts that the underground annual production in 2000 will increase by 85% to 450 million tons. He added that mining operations on the ground during the year, though, estimated that the total coal production would be 75-80% up to 2 billion tons. One of the major factors driving the improvement of underground mining technology is the distribution of reserves. Ganik said that on the basis of a Bfu,