唐山矿岳胥区瓦斯地质特征及控制因素分析  

Analysis on Geological Factors of Gas Occurrence and Gas Anomaly in Yuexu Section of Tangshan Mine

作　　者：冼伟东[1] 

机构地区：[1]开滦集团有限责任公司,河北唐山063018

出　　处：《煤炭技术》2017年第6期143-145,共3页Coal Technology

基　　金：国家自然科学基金资助项目(41472135);山西省煤基重点科技攻关项目(MQ2014-02)

摘　　要：对唐山矿岳胥区瓦斯赋存及涌出的地质特征进行研究,并进一步分析了研究区瓦斯地质控制因素。研究结果显示:区内瓦斯地质特征主要受地质构造、煤层埋深、水文地质、煤厚特征、顶底板岩性等因素控制,大-中型压扭性逆断层及水力封堵作用使得研究区瓦斯含量整体较高,煤层埋深整体上控制了瓦斯含量分布,研究区中部以及两侧深部,各煤层瓦斯含量均比较大。厚煤带及顶、底板致密区形成了局部瓦斯赋存高值区;小型逆断层密集区及煤厚急剧变化区域瓦斯涌出量突增,采掘经过时应注意预防瓦斯异常。The coal seams were selected to study the occurrence and emission of the gas in Yuexu section of Tangshan mine and further the geological control factors of gas characteristics were analyzed. The results showed that the gas geological controlling factors including geological structure, depth, hydrogeological characteristics and lithological properties of the coal seam. The reason for high gas content in the mine is the function of large-medium pressure fault and hydrodynamic plugging. What＇s more, the characteristics of coal seam buried depth lead to an high gas content in the middle and side of the study area . While the local high value area occurred in the zone of thick coal seam and density lithology of roof and floor. The gas emission increase suddenly from the zone of the small reverse fault and the sharp changed coal thickness. Therefore, attention should be paid to prevent gas anomaly when mining across the zone.

关 键 词：瓦斯赋存 地质控制因素 地质构造 

分 类 号：TD712[矿业工程—矿井通风与安全]