黔西大坝煤矿瓦斯地质特征浅析  

Gas Geological Characteristics of Daba Coal Mine in Qianxi

作　　者：原晓珠[1] YUAN Xiaozhu(Geology Survey Research Institute of Guizhou Coal Geological Bureau,Guiyang 550008,Guizhou,China)

机构地区：[1]贵州省煤田地质局地质勘察研究院,贵州贵阳550008

出　　处：《能源与节能》2023年第8期36-38,共3页Energy and Energy Conservation

摘　　要：根据贵州省黔西市大坝煤矿煤层样品化验测试结果并结合煤炭勘查数据对瓦斯地质特征进行分析。研究结果表明:区内各煤层均属于贫甲烷煤层;在平面上,煤层受断层影响区域,煤层倾角陡,瓦斯含量相对不稳定,规律性不明显。研究区9号和13号煤层的空气干燥基含气量(Cad)均<8 m3/t,未达到算量标准。研究区位于黔西市内,为国家划定突出矿区。According to the test results of coal seam samples from the Daba Coal Mine in Qianxi of Guizhou Province,and combined with the coal exploration data,the gas geological characteristics were analyzed.The research results show that all coal seams in the area belong to methane poor coal seams;on the plane,in the area affected by the fault,the angle of the coal seam is steep,the gas content is relatively unstable,and the regularity is not obvious.The air dry basis gas content(Cad)of the 9#and 13#coal seams in the study area is less than 8 m3/t,which does not meet the calculation standard.The study area is located in Qianxi,which is designated as a prominent mining area by China.

关 键 词：大坝煤矿 煤层特征 瓦斯压力 煤层含气性 

分 类 号：TD712[矿业工程—矿井通风与安全]