Arrangement of Gas Drainage Boreholes and Investigation and Analysis on Effect of Pre-drainage Gas by High Gas-drainage Roadway
In order to investigate the effect of drainage arrangement and time of the Roadway pre-pumping high seam Coal gas drilling, take YiAn mine FD003 alley pumping of Yima Industry Group as test site, By investigating the Five presbyopia drilling group arrangement and control scope of which the spacing is four meters, five meters and six meters, through the length time of the drainage to analyze the drainage effect. Experiment results show that through changing holes arrangement, expand control scope and increase control drainage time can improve drainage effect, could also eliminate the risk, through analysis on the drainage time, size of excavation and validity of the indexes for the footage investigation, Drilling distance is six meters, Drainage time seventy-five days, could get the best effect, compare with other three layouts the speed of tunneling can increase by 50%.
PanFeng RenPeiliang WangNianhong
Yima Coal Industry Group, Institute of Gas Technology Centre, Yima ,Henan,China Yima Coal Industry Group, Yian Mining Co., Ltd of Luoyang, Luoyang , Henan, China
国际会议
International Mining Forum 2010(2010年国际采矿论坛 IMF 2010)
合肥
英文
23-26
2010-09-20（万方平台首次上网日期，不代表论文的发表时间）