CAJ | 학술논문

607掘进工作面位于西三采区,属未开发区段,煤层瓦斯压力大、煤层瓦斯含量高,煤质松软,给安全生产造成极大的威胁,且由此造成掘进进度慢,采掘接替紧张。为此利用607高冒巷施工穿层抽放钻孔预抽煤导层瓦斯,以降低煤层瓦斯含量,减小其瓦斯压力,使煤体变硬,防止煤与瓦斯突出事故。
607굴진공작면위우서삼채구,속미개발구단,매층와사압력대、매층와사함량고,매질송연,급안전생산조성겁대적위협,차유차조성굴진진도만,채굴접체긴장。위차이용607고모항시공천층추방찬공예추매도층와사,이강저매층와사함량,감소기와사압력,사매체변경,방지매여와사돌출사고。
Aiming at the current situation in undeveloped 607 driving face with high gas pressure and content in the soft coal seam,which has created serious threat to safety production and influenced the driving speed and mining relay,the authors suggest the way of gas pre-drainage by crossing hole in 607 top-coal carving roadway to reduce the gas content and pressure in coal seam,which can harden the coal body and prevent coal and gas outburst.