综采工作面上隅角瓦斯积聚防治技术研究

Research on Prevention Technology for Gas from Upper Entry Corner in Full Mechanized Coal Face

针对首山一矿己16、17-12041综采工作面开采过程中反复出现的上隅角瓦斯异常涌出现象,采用现场工程调研的方法展开研究,分析认为井下温度失衡和工作面附近断层破碎带是造成上隅角瓦斯积聚的根本诱因。在此基础上提出底抽巷"穿层抽放"和"本煤层抽放"相结合的联网抽放设计,配合传统的导风帘通风,有效地解决了上隅角瓦斯异常,实现了矿井的安全高效生产。

Based on the serious field practice problem due to the abnormal gas emission from upper entry corner in Shoushan mine during the caving of the YI-16,17-12041 mine layer,analyzed the main cause of this phenomenon by engineering research and found that the influence of temperature and the exist of faults play an important role in controlling the distribution of gas. Then,proposed the comprehension treatment including'drainage form other layers'and'install wind screens'which has been proved is very effective and economic than others and ensured the safety during the working process.