大采高超长工作面停采线附近采空区气体监测及漏风防治  

Gas monitoring and leakage prevention at gob near stop line of large mining height long caving mining face

作　　者：王玉怀[1] 刘二小[1] 侯斐[1] 霍忠锋 钱国栋 芮国相 Wang Yuhuai Liu Erxiao Hou Fei Huo Zhongfeng Qian Guodong Rui Guoxiang(North China Institute of Science ＆ Technology, Sanhe, Hebei 065201, China Inner Mongolia Energy Co. , Ltd. , China Guodian Corporation, Erdos, Inner Mongolia 017209, China)

机构地区：[1]华北科技学院,河北省三河市065201 [2]国电建投内蒙古能源有限公司,内蒙古自治区鄂尔多斯市017209

出　　处：《中国煤炭》2017年第2期100-103,共4页China Coal

基　　金：国家自然科学基金资助(U1361130);中央高校基本科研业务费资助(3142015021;3142015124;3142015119)

摘　　要：对察哈素矿31301工作面停采线附近采空区的气体变化规律进行了长时间观测,监测结果表明,由于未垮落空间大以及存在比较严重的漏风,停采线附近采空区内O_2浓度一直较高。针对存在的采空区漏风,采取了二次封闭、注浆、喷浆、均压、充填等措施,有效治理了采空区漏风,降低了采空区O_2浓度。Long-term observation was conducted for gas change laws of gob near stop line of 31301 working face at Chahasu Mine. The monitoring results showed that oxygen concentration kept high at gob near stop line because of large non-fallen space and serious air leakage. Secondary sealing, grouting, cementing, pressure balance and back-filling were utilized to solve air leak- age at gob and effectively lower oxygen concentration at gob.

关 键 词：大采高 超长工作面 停采线 采空区 气体监测 漏风防治 

分 类 号：TD753[矿业工程—矿井通风与安全]