裕兴煤矿综采工作面综合抽采瓦斯技术应用  

Application of Comprehensive Gas Drainage Technology in Fully-mechanized Working Face in Yuxing Colliery

作　　者：孙慧卿 Sun Huiqing(Safety Inspection Brigade of Jinneng Holding Coal Industry Group,Datong 037000,Shanxi,China)

机构地区：[1]晋能控股煤业集团安全督查大队,山西大同037000

出　　处：《江西煤炭科技》2023年第4期191-193,共3页Jiangxi Coal Science & Technology

摘　　要：针对裕兴煤矿15203工作面煤层瓦斯含量较高,回采期间容易发生瓦斯超限事故的问题,提出工作面回采前采用顺层钻孔预抽煤层瓦斯和工作面回采期间采用顶板高位钻孔及回风隅角埋管抽放相结合的瓦斯综合治理技术措施,并根据工作面煤层瓦斯及现场实际情况,设计相关瓦斯抽采钻孔技术参数。实际应用分析表明,采取上述瓦斯综合治理措施后,工作面回采期间回风隅角及回风流中瓦斯浓度最大值分别为0.48%和0.35%,工作面未发生过瓦斯超限事故。In view of the high gas content and possible occurrence of gas overrun accident during mining at 15203 working face of Yuxing Colliery,the paper puts forward the comprehensive gas control technical measures of gas pre-drainage by bedding drilling before mining combined with roof high-level borehole and buried-pipe drainage in in return airway corner during mining,including the relevant gas drainage drilling technical parameters according to the coal seam gas at the working face and the actual situation of the site,whose application result analysis shows that after taking the above comprehensive gas control measures,the maximum gas concentration in return airway corner and return air flow are 0.48%and 0.35%respectively with no gas overrun accident in the working face.

关 键 词：综采工作面 顺层钻孔抽采 顶板高位钻孔 回风隅角埋管抽采 效果分析 

分 类 号：TD712.624[矿业工程—矿井通风与安全]