摘要
介绍了崔庙煤矿二1煤底板岩石穿层抽放钻孔预抽瓦斯消突钻孔抽放半径的实验与测定,确定了合理的抽放半径,以指导矿井消突工作。
The experiment and determination of eliminating outburst drilling holes drainage radius with floor rocks cross drainage drilling holes pre - drainage gas in No2 - 1 coal seam of Cuimiao Coal Mine are introduced. The reasonable drainage radius is determinated in order to guide mine eliminating outburst work.
出处
《煤炭技术》
CAS
2008年第4期66-68,共3页
Coal Technology
关键词
二
煤层
底板岩石
穿层抽放钻孔
抽放半径
No2- 1 coal seam
floor rock
cross drainage drilling holes
drainage radius
