立体瓦斯抽采技术在21301工作面的应用  

Application of stereoscopic gas extraction technology in 21301 working face

作　　者：聂鸿元 王兆瑞 Nie Hongyuan;Wang Zhaorui(Baozi Mine,Yangquan Coal Industry(Group)Corporation Ltd.,Yangquan 045000,China;China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]阳泉煤业(集团)有限责任公司堡子矿,山西阳泉045000 [2]中国矿业大学(北京),北京100083

出　　处：《煤炭与化工》2021年第3期86-88,共3页Coal and Chemical Industry

摘　　要：为保证阳煤集团二矿21301工作面安全生产,有效治理矿井瓦斯,结合该矿地质条件和瓦斯赋存状态,提出了本煤层双侧钻孔抽采、邻近层高抽巷抽采和采空区埋管抽采相结合的立体瓦斯抽采技术。在落实该技术后,21301工作面瓦斯含量大幅度减小,工作面、回风巷、机尾风流瓦斯含量稳定在0.4%以下,上隅角瓦斯含量稳定在0.6%以下,达到预期抽采目标。该瓦斯抽采措施的应用有效解决了工作面瓦斯涌出量大、工作空间瓦斯含量过高的问题,为工作面正常回采期间的瓦斯防治提供依据,保障了工作面安全、高效生产,并为今后类似工作面的瓦斯治理提供重要参考。In order to ensure the safe mining of 21301 working face of Yangquan Mining Group No.2 Mine and effectively manage the mine gas,a three-dimensional gas extraction technology combining double-side drilling and extraction of this coal seam,high extraction alley extraction of adjacent seam and buried pipe extraction in the mining area was proposed,the geological conditions and the state of gas distribution were analyzed in the mine.After the implementation of this technical measure,the gas content of 21301 working face was greatly reduced,and the gas content of working face,return air roadway and tail wind flow was below 0.4%,and the gas content of upper corner was below 0.6%,which reached the expected extraction target.The application of this gas extraction measure effectively solved the problems of large gas gushing from the working face and high gas content in the working space,provided the basis for gas prevention and control during the normal recovery of the working face,guaranteed the safe and efficient production of the working face,and provided important reference for the gas management of similar working faces in the future.

关 键 词：瓦斯预抽 综放工作面 平行钻孔 

分 类 号：TD712[矿业工程—矿井通风与安全]