关键词: 煤矿, 物性特征, 煤质特征

Abstract: Based on the surface exploration data and deep drilling results of Jingang coal mining area,structural characteristics of shallow and deep area of the mining area is summarized,and coalseam) physical property and coal quality characteristics in the mining area are also discussed.The study results show that:①main coal-bearing strata in the mining area are the fifthT₃xj₅) and seventhT₃xj₇) segment of Upper Triassic Xujiahe Group,and the seventh segmentT₃xj₇) of Xujiahe Group is primary coal-bearing strata in the mining area;②the coal seam in the area is mainly for bright coal,and followed by dark coal;③the average water content of coal seam is less than 0.9,average of V_daf is 29.04%~33.36%,content of CO2 is not more than 2%,and the average sulfur content of coal seam is lower than that of 0.17%~0.19%, the sulfur desulfurization rate of floating coal is 67% and the desulfurization effect is medium.

Key words: Coal mine, Physical property, Coal quality characteristics