摘要
钻孔密封是瓦斯抽采中一项极其重要的技术工艺,封孔质量是影响瓦斯抽采量和瓦斯抽采率的关键。通过顺层抽采钻孔封孔机理的分析,结合矿井实际情况,提出了义煤集团某矿顺层抽采钻孔封孔技术和工艺,这种封孔技术提高了矿井瓦斯抽采效率,实现了提高预抽瓦斯浓度及流量的目的。
Borehole sealing is a vital technology in gas drainage, in which the sealing quality is the key influential factor of gas drainage quantity and efficiency. By analysis of the sealing mechanism in bedding borehole drainage, the paper presents the sealing technology applied in a colliery of Yima Coal Industry Group. , which has improved the gas drainage efficiency and achieved the goal of increasing pre--drainage gas concentration and flow
出处
《江西煤炭科技》
2013年第2期85-87,共3页
Jiangxi Coal Science & Technology
关键词
顺层
抽采钻孔
全程注浆
封孔技术
bedding
borehole drainage
whole -- course grouting
sealing technology
