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掌握瓦斯含量分布规律,是进行矿井瓦斯防治和煤层气抽采利用的主要依据。根据长平煤矿3号煤层瓦斯含量值及瓦斯涌出情况,结合地质构造控制理论,分析了井田地质构造对煤层瓦斯赋存特征的影响。从瓦斯地质学的角度阐述了3号煤层瓦斯赋存与井田地质构造、煤层埋藏深度、煤厚、煤层顶板岩性的关系,认为煤层埋深是影响3号煤层瓦斯赋存的主要因素,地质构造只在局部影响煤层瓦斯赋存。
Grasp the distribution of gas content is the main basis for mine gas prevention and control and coalbed methane extraction and utilization. According to the gas content of No.3 coal seam of Changping Coal Mine and gas emission, combined with the theory of geological structure control, the influence of geological structure of coal mine on gas occurrence characteristics of coal seam is analyzed. From the gas geology point of view, the relationship between gas occurrence in No.3 coal seam and geological structure in minefield, depth of coal seam burial, coal thickness and roof rock of coal seam is expounded. It is considered that the depth of coal seam is the main factor affecting gas occurrence in No.3 coal seam. Construction only affects coal seam gas occurrence locally.