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采用瓦斯地质理论的方法,结合井田瓦斯地质资料和实测瓦斯数据,探讨了地质构造、地下水活动和岩浆岩侵入等因素对万年矿2#煤层瓦斯赋存的影响。结果表明:岩浆岩侵入和地下水活动造成井田煤层瓦斯含量较低,地质构造和岩浆岩侵入造成井田北部瓦斯含量小,南部瓦斯含量大,煤层瓦斯含量随深度增加而增大。地质构造、岩浆岩侵入和地下水活动是控制万年井田煤层瓦斯赋存的主控影响因素。
Based on the gas geology theory and well gas methane data and measured gas data, the effects of geological structure, groundwater activity and magmatic intrusion on the gas occurrence in No.2 coal seam of Wannian Mine are discussed. The results show that the gas content in minefield is low due to the intrusion of magmatic rocks and the groundwater activities. The invasion of geological structures and magmatic rocks causes the gas content in the northern part of the minefield to be low, the gas content in the south to be large, and the gas content in the coal seam to increase with depth. Geological structure, magmatic rock intrusion and groundwater activity are the main controlling factors that control the gas occurrence in coal seams in Wannian Minefield.