In order to effectively improve the gas control effect of floor through layer drilling,taking the gas control of 3301 track transportation channel in A Coal Mine of Shanxi Province as the engineering research background,it was proposed to apply hydraulic punching technology to the floor extraction roadway through layer drilling of track transportation channel,and the engineering application effect was analyzed.After on-site application,the gas extraction efficiency of the floor through layer drilling significantly improved,effectively solving the problems of long time for gas suppression and gas control constraints on tunnel excavation,and creating favorable conditions for safe and efficient excavation of the 3301 track transportation channel.
关键词
瓦斯治理/突出煤层/穿层钻孔/水力冲孔
Key words
gas control/outburst coal seam/drilling through layers/hydraulic punching
维普
万方数据