摘要
基于贵州松河煤业131204采煤工作面调试期间上隅角瓦斯较大现象,通过理论分析可知瓦斯主要来源于临近层和顶板裂隙带,提出了采煤工作面高位钻场抽采裂隙带卸压瓦斯方法。通过实践分析,该方法使上隅角瓦斯浓度最大由0.8%降低至0.3%,并且本采面上隅角瓦斯浓度控制在0.5%以下,有效降低了上隅角瓦斯浓度。
Based on phenomenon of large gas in the upper corner during the commissioning of the 131204 coal mining face,the extraction fissures with pressure relief gas method in the upper layer drilling field of the coal mining face are proposed.The gas concentration in the upper corner was effectively reduced.
作者
龙声德
罗飞
陈文龙
LONG Shengde;LUO Fei;CHEN Wenlong
出处
《山西焦煤科技》
CAS
2021年第2期40-42,46,共4页
Shanxi Coking Coal Science & Technology
关键词
高位钻场
裂隙带
卸压瓦斯
Upper layer drilling field
Fracture zone
Pressure relief gas
