沁新煤矿2~#煤层瓦斯抽放可行性研究  

Study on Feasibility of Gas Drainage in 2~# Coal Seam of Qinxin Coal Mine

作　　者：任青山 邹静 艾德春 秦趣 REN Qing-shan;ZOU Jing;AI De-chun;QIN Qu(Mining and Civil Engineering College,Liupanshui Normal University,Liupanshui 553000,China)

机构地区：[1]六盘水师范学院矿业与土木工程学院,贵州六盘水553000

出　　处：《煤炭技术》2018年第9期158-160,共3页Coal Technology

基　　金：贵州省教育厅"125"重大科技专项资助(黔教合重大专项字[2012]017号);六盘水师范学院重点学科建设项目(LPSSYZDXK201701);贵州省教育厅基金项目(黔教合KY字[2015]398);六盘水市科技局项目(52020-2017-02-09)

摘　　要：为了准确评价沁新煤矿2#煤层瓦斯抽放的可行性,实测了该煤层瓦斯含量。同时,在该煤层施工3个钻孔进行煤层瓦斯涌出衰减系数和煤层透气性系数的测试。测试结果显示,该煤层最大瓦斯含量为6.127 m3/t,钻孔自然瓦斯流量衰减系数为0.023~0.035 d-1,煤层的透气性系数在0.195 3~0.309 0 m2/(MPa2·d)。依据上述参数并结合相关规定,沁新煤矿2#煤层瓦斯抽采是可行的。In order to evaluate the feasibility of gas drainage in 2#coal seam of Qinxin coal mine accurately, the gas content of this coal seam has been measured. At the same time, the attenuation coefficient of coal seam gas emission and the permeability coefficient of coal seam are tested in 3 boreholes in this coal seam construction. The test results shows that the maximum gas content of this coal seam is 6.127 m^3/t, the attenuation coefficient of natural gas flow in borehole is from 0.023 to 0.035 d^-1, and the permeability coefficient of coal seam is from 0.195 3 to 0.309 0 m^2/（MPa^2·d）.According to the parameters above and related regulations, coal seam gas drainage is feasible in Qinxin coal mine.

关 键 词：瓦斯含量 瓦斯涌出量 流量衰减系数 煤层透气性系数 可行性研究 

分 类 号：TD712[矿业工程—矿井通风与安全]