综采工作面回采期间上邻近层瓦斯治理技术  

Gas Control Technology of Upper Adjacent Layer in Fully Mechanized Mining Face during Mining

作　　者：陈建飞 Chen Jianfei(Guandi Coal Mine of Shanxi Coking Coal Co.,Ltd.,Shanxi Taiyuan 030022)

机构地区：[1]山西焦煤有限责任公司官地煤矿,山西太原030022

出　　处：《山东煤炭科技》2022年第1期86-87,90,共3页Shandong Coal Science and Technology

摘　　要：针对本煤层工作面开采过程中,上近邻煤层和采空区瓦斯涌入影响工作面安全开采的问题,以官地煤矿23511工作面为背景,针对上部实体煤和采空区两种情况,分别布置顶板钻孔和裂隙带钻孔以及采空区钻孔,解决了工作面瓦斯涌出量大、瓦斯浓度高的问题。现场实测:工作面瓦斯抽采率达到72.7%,回风流瓦斯浓度平均0.2%,有效保障了工作面安全高效生产。In view of the problem that gas gushing into the upper adjacent coal seam and goaf affects the safe mining of the working face during the mining process of this coal seam,taking the 23511 working face of Guandi Coal Mine as the background,aiming at the two situations of upper solid coal and goaf,roof drilling,fracture zone drilling and goaf drilling are arranged respectively,which solves the problems of large gas emission and high gas concentration in the working face.Field measurement shows that the gas extraction rate of the working face is 72.7%,and the average gas concentration of the return air is 0.2%,which effectively ensures the safe and efficient production of the working face.

关 键 词：综采工作面 上邻近层 瓦斯抽采 瓦斯浓度 

分 类 号：TD712.6[矿业工程—矿井通风与安全]