摘要
采用综合应用理论分析、现场实测的方法,对山西汾西集团曙光煤矿1226高瓦斯综采工作面瓦斯来源进行了分析,提出并实施了分区段“风排+煤层钻孔抽放+裂隙带钻孔抽放”的联合瓦斯抽采技术。现场监测结果显示:1226综采工作面上隅角瓦斯浓度控制在0.45%~0.75%,回风流中瓦斯浓度控制在了0.44%~0.75%,瓦斯治理效果明显改善。
Theoretical analysis and field measurement methods are introduced to analyses the gas source of 1226 fully mechanized coal mining face in Shuguang Coal Mine,Shanxi Fenxi Group.The combined method of ventilation+coal seam borehole drainage+drilling in fractura was proposed and implemented.The results of on-site monitoring show that the gas treatment effect is significantly improved.
出处
《山西焦煤科技》
2020年第1期42-45,共4页
Shanxi Coking Coal Science & Technology
关键词
瓦斯来源
分区段瓦斯抽采
裂隙带钻孔布置
Gas source
Gas drainage by section
Drilling arrangement in fractured zone
