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以层沉积特征和地质构造特征与矿井煤层瓦斯赋存的关系,结合井田内构造裂隙对煤层变形的影响,对四川盆地内典型高瓦斯突出矿井瓦斯赋存的地质特征进行了分析.在此基础上,对矿井生产中煤层瓦斯涌出及产生动力现象的可能性作出了地质评价:地质构造和煤的变形程度是影响该矿瓦斯涌出和动力现象发生的主要因素;在煤岩层发生弧形弯曲和落差较大的走向逆断层附近是动力现象发生的危险区段.该成果对进一步研究矿井瓦斯的运移、富集和涌出规律及对其它矿井进行类似的分析具有重要意义.
The geological characteristics of gas occurrence in typical high-gas outburst coal mines in Sichuan Basin are analyzed based on the relationship between sedimentary characteristics and geological tectonics and gas occurrence in coal seam. Combining with the influence of structural fractures in coal mine on deformation of coal seam, On this basis, geological evaluation is made on the possibility of gas emission and dynamic phenomenon in coal seam production: the geological structure and the deformation degree of coal are the main factors that affect the gas emission and dynamic phenomenon of the mine; The occurrence of a curved curve and a larger gap to the vicinity of the thrust fault is a dynamic section of the dangerous phenomenon. This result is of great significance for further study of the laws of gas migration, enrichment and emission in coal mines and similar analysis of other mines.