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一、开滦矿区建国以来的建井概况 开滦煤矿原设计能力为1,260万吨/年。1975年矿区产量达到2,654万吨。建国初期,开滦只凿一些单一竖井,后来随着基建队伍的壮大和施工技术的提高,开始进行成套矿井建设。1958年至1976年,先后建成范各庄(180万吨/年)、吕家坨(150万吨/年)和荆各庄(120万吨/年)三座大型矿井。其间,总计施工38个竖井(见表1)。
I. Kailuan Mine Construction since the founding of the state Kailuan Coal Mine originally designed capacity of 12.6 million tons / year. 1975 mining output reached 26,540,000 tons. In the early days of the founding of New China, Kailuan only made some single shafts. Later, with the expansion of infrastructure teams and the improvement of construction techniques, the construction of complete mines began. From 1958 to 1976, three large mines of Fangezhuang (1.8 million tons / year), Lujiatuo (1.5 million tons / year) and Jinggezhuang (1.2 million tons / year) were successively built. In the meantime, a total of 38 shafts were constructed (see Table 1).