贵州青龙矿瓦斯赋存与突出影响因素分析

本文在贵州青龙煤矿瓦斯地质条件综合分析的基础上,通过矿井瓦斯含量、瓦斯压力和煤与瓦斯突出等特征的深入分析,探讨了区域演化、煤层顶、底板岩性、煤层埋深和矿井构造对瓦斯赋存和突出的控制作用。结果表明:区域沉积演化的特殊性是造成整个贵州西部地区瓦斯含量较大的主要原因;矿区内瓦斯分布的整体趋势受煤层埋深的控制,而瓦斯含量分布不均匀性主要受矿井构造的影响。

Prominent Influenced Factors Analyses and Gas Occurrence of Qinglong Mine in Guizhou

On the basis of the comprehensive analyses of gas geologic conditions of Qinglong mine,and by analysis the characters of gas content,gas pressure and gas outburst,the control effect of gas occurrence and outburst by regional evaluation,lithology of seam roof and floor,seam buried depth and mine structure.It's indicated that the specialty of regional sedimentary evaluation is the main reason which cause the high content of gas in west Guizhou;the hoslistic trend of gas distribution is controlled by seam buried depth but the variability of gas distribution is mainly effected by mine structure.