DOI: 10.11799/ce201708014
Optimal position selection and application of overlying drainage roadway in Yuwu Coal Mine
LIU Lei
WANG Da-qiang
Abstract：According to coal seam occurrence in Yuwu Coal Mine,based on the measured data and its corresponding gas control effect in working face of six overlying drainage roadways in Yuwu Coal Mine.,the reasonable level and vertical position were determined,which were applied N1101 working face of Yuwu Coal Mine,field application result showed,the position selection was reasonable,and the gas control effect was favorable,with the gas concentration declined by 0.22% in return air,0.23% at tail end of scraper conveyor,and 25.35% at the upper corner.
Keywords：gas sourceoverlying drainage roadwaygas controlgas concentration
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 50-52 )