山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2015年
1期
77-79
,共3页
三软煤层%瓦斯涌出规律%瓦斯治理
三軟煤層%瓦斯湧齣規律%瓦斯治理
삼연매층%와사용출규률%와사치리
three soft coal seam%gas emission law%gas control
郭村煤矿为“三软”低透气性煤层高瓦斯矿井，通过对工作面的不同瓦斯涌出源状况和瓦斯浓度分布规律进行分析，掌握回采工作面瓦斯涌出的状况及随时空的变化规律，据实测数据得知，落煤及煤壁瓦斯涌出占工作面瓦斯涌出的66%，采空区瓦斯涌出占39%。根据瓦斯涌出情况，采用顺层钻孔、煤墙浅孔、上隅角埋管、高位抽放孔等瓦斯综合抽放措施，有效解决了工作面的瓦斯问题。
郭村煤礦為“三軟”低透氣性煤層高瓦斯礦井，通過對工作麵的不同瓦斯湧齣源狀況和瓦斯濃度分佈規律進行分析，掌握迴採工作麵瓦斯湧齣的狀況及隨時空的變化規律，據實測數據得知，落煤及煤壁瓦斯湧齣佔工作麵瓦斯湧齣的66%，採空區瓦斯湧齣佔39%。根據瓦斯湧齣情況，採用順層鑽孔、煤牆淺孔、上隅角埋管、高位抽放孔等瓦斯綜閤抽放措施，有效解決瞭工作麵的瓦斯問題。
곽촌매광위“삼연”저투기성매층고와사광정，통과대공작면적불동와사용출원상황화와사농도분포규률진행분석，장악회채공작면와사용출적상황급수시공적변화규률，거실측수거득지，락매급매벽와사용출점공작면와사용출적66%，채공구와사용출점39%。근거와사용출정황，채용순층찬공、매장천공、상우각매관、고위추방공등와사종합추방조시，유효해결료공작면적와사문제。
Guo cun coal mine belongs to the "Three Soft" low permeability coal seam in high gas mine, through analyzed the working face gas emission sources and different condition of the gas concentration distribution rules, to master the gas emitted status and the changes rules with time and space, the measured data show the gas emission of Coal cutting and coal wall of working face accounted for 66%, the gob gas emission accounted for 39%. According to the gas emission, using bedding drilling, shallow hole in coal wall, buried pipe in the upper corner, high drainage hole and so on gas comprehensive drainage measures, effectively solves the problem of gas.
