摘要
为探究超长综放工作面高抽巷的最优层位,以余吾煤业N2103工作面为工程背景,通过计算采场三带、椭抛带高度和裂隙带瓦斯流场,最终确定N2103工作面高抽巷的最优层位为垂直×水平=40 m×30 m。通过现场试验数据分析,高抽巷抽采量占工作面涌出量的25%~30%,有效降低了工作面瓦斯浓度,保证了安全生产。
In order to explore the optimal horizon of high drainage roadway in super-long fully mechanized sublevel caving face,taking N2103 working face as the engineering background,calculation height of stope three zone,elliptic paraboloid zone and gas flow of fractured zone,ultimately determine the optimal horizon of N2103 working face high drainage roadway for vertical horizontal = 40 m ×30 m,the high drainage roadway drainage rate in 25% ~ 30% through on-site data analysis,reduce the gas concentration of working face.
出处
《煤》
2017年第3期21-22,42,共3页
Coal
关键词
超长综放工作面
高抽巷
最优层位
super-long fully mechanized sublevel caving
high drainage roadway
optimal horizon
