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郑州矿务局位于河南省郑州市西南,矿区东西长100km,南北宽5～45km,地跨一市三县,面积为1500km~2,规划利用储量31.82亿t。矿区开采的主要含煤地层为二迭系山西组二_1煤层,平均煤厚7m,倾角7°～30°,石炭系太原组一_2煤层厚度0.8～1.2m,局部可采。矿井开采深度平均为250m左右,绝对瓦斯涌出量为4～20.8m~3/min,
Zhengzhou Mining Bureau is located in the southwest of Zhengzhou City, Henan Province. The mining area is 100km long from east to west and 5 ~ 45km wide from north to south. It crosses one city and three counties and covers an area of 1500km ~ 2 with a planned utilization of 3.182 billion tons. The main coal-bearing strata in the mining area are the Permian Shanxi Section II_1 coal seam with an average coal thickness of 7m and a dip angle of 7 ° to 30 °. The coal seam of the Taiyuan Formation and the Carboniferous Series 2 has a thickness of 0.8-1.2m and is locally recoverable. The average mining depth is about 250m, the absolute gas emission is 4 ~ 20.8m ~ 3 / min,