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结合祁东井田瓦斯地质资料,基于井田构造平面变形系数、构造煤分布特征、瓦斯赋存分布特征等将祁东井田划分为4个瓦斯地质单元。以魏庙断层为界,北部为第Ⅰ、Ⅱ、Ⅲ单元,南部为第Ⅳ单元。分析发现影响各单元煤层瓦斯赋存的主要因素均不相同,第Ⅰ单元为煤层埋深,第Ⅱ单元为断层构造,第Ⅲ单元为岩浆岩,第Ⅳ单元为地层隆起造成的煤层瓦斯大量逸散。
Based on the gas geological data of Qidong Mine, the Qidong Minefield is divided into four gas geological units based on the deformation coefficient of the minefield structure, the distribution characteristics of tectonic coal and the characteristics of gas occurrence and distribution. The Wei-Miao fault is bounded by units I, II and III in the north and units IV in the south. It is found that the main factors that affect the gas occurrence in coal seams are different. The first element is the depth of the coal seam, the second element is the fault structure, the third element is the magmatic rock, the fourth element is the large amount of methane Scattered