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井陉煤矿是一个开采近80年的老矿区,现有3个矿5对井口,开采石炭二迭纪煤层,共有煤层7个,可采煤层5个,4个为薄及中厚煤层,最下部的七层煤是厚煤层,煤厚6～10m,倾角多在5°～20°之间,埋藏深度50～400m。解放前采出煤量1931万吨,解放后50、60年代先后扩建矿井两处,恢复两处,新建小型井口7对,开采强度加大,保有储量逐年减少,到65年底仅剩可采储量2614万吨,只能再采10年。面对矿井衰老、资源有限,生产地区构造又较复杂的客观情况,为延长矿井寿命,为国家增产煤炭,多回收宝贵资源,我们对七煤层已采过地区进行了调查研究,资料分析,一致认为德、日、
Jingtai Coal Mine is an old mining area that has been mining for nearly 80 years. There are 3 mines with 5 pairs of wellheads and coal-rimmed Permian coal seams. There are 7 coal seams, 5 coal seams, 4 thin and medium-thick seams, The lower seven coal seam is thick seam, coal thickness 6 ~ 10m, dip more between 5 ° ~ 20 °, buried depth of 50 ~ 400m. Before the liberation, the coal production was 19.31 million tons. After the liberation, it expanded the mine two times in the 1950s and 1960s and restored two of them. Seven new small wellheads were newly built, the intensity of exploitation increased and the reserves kept decreased year by year. Only the recoverable reserves 26.14 million tons, only re-mining 10 years. Faced with the objective conditions of mine aging, limited resources and complicated structure in the production area, we conducted investigation and study and data analysis on the reclaimed areas in the Seventh Coal Seam to prolong mine life, increase coal production in the country, and recycle precious resources. Think Germany, Japan,