摘要
为解决东峰煤矿3号煤层二、三采区瓦斯含量较高等问题,采用现场实测和理论计算手段对工作面瓦斯抽采效果进行评判。测定了工作面煤层的瓦斯含量并绘制了工作面瓦斯分布图,通过对工作面瓦斯进行抽放,最终可得3号煤层二、三采区回采前煤的可解吸瓦斯量分别为3.45m^3/t和4.06m^3/t,小于标准判定值6m^3/t,瓦斯抽采效果达标。
In order to solve the problem of high gas content in No.2 and No.3 coal seam of Dongfeng Coal Mine,field measurement and theoretical calculation are used to evaluate the effect of gas extraction in working face.The gas content in the coal seam of the working face was determined and the gas distribution map was drawn.By draining the gas from the working face,the desorbable gas volume of the coal before mining in the second and third mining areas of No.3 coal seam was 3.45m^3/t and 4.06m^3/t respectively,which was less than the standard value of 6m3/t,and the gas drainage effect reached the standard.
作者
王超
Wang Chao(Dongfeng Coal Mine Co.,Ltd.,Shanxi Lanhua Group,Shanxi Jincheng 048001)
出处
《山东煤炭科技》
2019年第7期111-113,117,共4页
Shandong Coal Science and Technology
关键词
瓦斯抽采
达标评判
分析
gas extraction
criteria for achieving standards
analysis
