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六枝矿区煤与瓦斯突出比较严重,现有七对生产矿井中均发生过煤与瓦斯突出。其中以大用矿突出次数最多、强度最大、始突深度最浅,而且突出区域比较集中。本文在总结大用矿地质特征的基础上,分析了该矿煤与瓦斯突出的地质因素。从构造特征、煤层厚度、煤系及煤层顶底板岩性、煤岩煤质、煤层埋藏深度等方面,讨论了该矿7煤层以及该层在不同构造部位、不同采区和煤岩分层突出严重的原因。从分析中得知,地质构造是引起该矿突出的主导因素,其他地质因素也起一定的作用,但是次要的。本文对该矿不同区域,不同煤层中突出的严重程度及其予防突出提出一些建设性的意见。
Liuzhuang coal and gas outburst more serious, the existing production of coal in seven pairs of coal and gas outburst. Among them, the most frequently used mines are outburst, the intensity is the highest, the depth of initial protrusion is the lightest, and the prominent areas are more concentrated. Based on the summarization of the geologic characteristics of large-scale mining, this paper analyzes the geological factors of coal and gas outburst in this mine. From the aspects of tectonic characteristics, thickness of coal seam, the top and bottom lithology of coal measures and coal seam, the coal and rock quality, and the depth of coal seam burial, this paper discusses that the coal seam No.7 and its strata in different tectonic positions, Serious reason. From the analysis, we know that geological structure is the dominant factor that causes the mine to stand out. Other geological factors also play a role, but secondary. This article puts forward some constructive suggestions on the outstanding severity of the different areas and different coal seams in the mine and its prevention and prominence.