摘要
为有效地防治黄岩汇煤矿15109综放工作面瓦斯超限,提出了高抽巷治理邻近层瓦斯技术。理论分析了高抽巷的设计参数,实测了高抽巷瓦斯抽采浓度及抽采量等参数,分析了工作面推进距离与高抽巷抽采效果之间的动态变化规律。应用结果表明,高抽巷在黄岩汇矿15109综放工作面的瓦斯治理方面取得了显著的效果。
Goaf side entry retaining ＂Y＂ type ventilation technology not only solves the problem of upper comer gas, and improves the extraction rate, widely used in high gas mine. But affected by geological conditions and the sur- rounding mining activities, results in cross section reduction of goal side entry retaining roadway, can not meet the ven- tilation and transportation section. Through layout of the station in goal side entry retaining roadway measured roof and floor closer as well as the roof abscission layer and get a large number of reliable data. Studies have found that rock stra- tum is stability within roof anchoring scope, concluded that outside the scope delamination phenomenon exists, roof and floor the closer amount is larger. Increases the support strength in advance, slows down convergence of section.
出处
《山西焦煤科技》
2013年第6期13-16,共4页
Shanxi Coking Coal Science & Technology
关键词
高抽巷
瓦斯抽采
应用研究
High level suction roadway
Gas extraction
Application research
