Understanding the coal seam gas occurrence law is the premise and foundation of gas disaster prevention and production planning. The tectonic control law and zoning division of gas occurrence in Sichuan Province have been discussed, based on the gradual tectonic control theory for gas occurrence, combined with coal mine gas-geology data and a geological survey in Sichuan Province. The obtained results indicate that the generation, migration, and preservation of gas are controlled by the formation and development, cracking, subduction collision, and intracontinental orogeny of the upper Yangtze block. The gas occurrence and distribution characteristics in Sichuan Province are significant. Gas occurrence of Late Permian coal seams is significantly higher than that of Late Triassic coal seams, as 85.7% of the outburst mines in the Sichuan Province are distributed into the Late Permian coal seams. The Late Permian coal seams in the Xuyong-Junlian superimposed fold belt and Huayingshan detachment fold belt are high gas occurrence zones. These zones had been under strong tectonic compression for several years, thereby resulting in interlayer sliding, formation of stratified tectonic coal, and high degree of coal metamorphism and high gas content, which represent the fundamental reasons why 84.3% of outburst mines in Sichuan Province are located in these two regions. According to the tectonic control law and characteristics of coal seam gas occurrence in Sichuan Province, the gas occurrence zones of coal seam in Sichuan Province were divided into three high gas and outburst zones, three high gas zones and one low gas zone; in addition, their tectonic control characteristics and gas occurrence characteristics were analysed.

了解煤层瓦斯赋存规律是瓦斯防灾和生产规划的前提和基础。以瓦斯赋存渐进构造控制理论为基础，结合煤矿瓦斯地质资料和四川省地质调查，探讨了四川省瓦斯赋存的构造控制规律和分区划分。研究结果表明，上扬子地块的形成发育、裂解、俯冲碰撞和陆内造山运动控制着天然气的生成、运移和保存。四川省天然气赋存分布特征显着。晚二叠世煤层瓦斯赋存量显着高于晚三叠世煤层，达85个。四川省7%的突出煤矿分布在晚二叠世煤层中。徐永—军连叠合褶皱带和华蓥山滑脱褶皱带晚二叠世煤层为高瓦斯赋存带。这些带多年来一直受到强烈的构造挤压，导致层间滑动，形成层状构造煤，煤变质程度高，瓦斯含量高，是四川省84.3%的突出矿井被挤压的根本原因。位于这两个区域。根据四川省煤层瓦斯赋存的构造控制规律和特征，将四川省煤层瓦斯赋存区划分为3个高瓦斯突出带、3个高瓦斯带和1个低瓦斯带；此外，