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1979年德意志联邦共和国(以下称西德)开采有四十座平均日产量为9000吨的大型矿井。整个煤炭企业的年生产能力超过了9000万吨。平均开采深度为860米,个别矿井是在超过1350米的深度上进行开采的。 1979年烟煤产量达8725万吨(商品煤),比1978年增产235万吨。井下工人每班效率为4吨(按商品煤计算);“恩斯道尔夫”大型矿井的每工效率达8.1吨,长壁回采工作面的每工班效率高达20吨。
In 1979, the Federal Republic of Germany (hereinafter referred to as West Germany) produced 40 large-scale mines with an average daily output of 9,000 tons. The entire coal production capacity of more than 90 million tons. The average mining depth is 860 meters and individual mines are mined at depths of more than 1350 meters. In 1979, the output of bituminous coal reached 87.25 million tons (commercial coal), an increase of 2.35 million tons over 1978. Downhole workers efficiency of 4 tons per class (in terms of commercial coal); “Enshurfer” large-scale mine per-unit efficiency of 8.1 tons, long-wall mining face efficiency of up to 20 tons per class.