摘要
在对综采工作面瓦斯来源分析的基础上,根据董家河煤矿22518综采工作面瓦斯涌出数据,采用瓦斯单元测定法分析了工作面瓦斯浓度分布规律及影响因素。研究结果表明:22518工作面瓦斯涌出主要来源于本煤层和上覆邻近煤层,瓦斯治理方法应采用以本煤层预抽和边采边抽为主,邻近层抽采为辅,在采煤工作面回风巷布置高位钻孔对上覆邻近煤层卸压瓦斯进行抽采。研究成果对保证高产、高效综采工作面的正常生产提供决策依据。
Based on the analysis of gas source in fully mechanized mining face,according to the gas emission data in№22518 fully mechanized mining face of Dongjiahe Coalmine,the gas distribution law and influencing factors of working face was analyzed by gas unit measurement. The results show that the current seam and overlying adjacent seams are the main gas emission sources in №22518 working face. The gas pre-drainage and the ＂ draining while mining＂ method is the main gas control method. At the same time,the gas drainage in pressure releasing area of overlying adjacent seams using high level borehole must be took. The research can provides basis for the normal production of high production and efficiency mine.
出处
《陕西煤炭》
2015年第1期7-9,58,共4页
Shaanxi Coal
关键词
分源预测法
瓦斯单元测定法
瓦斯抽采
高位钻孔
different-source prediction method
gas unit measurement
gas extraction
high level borehole
