摘要
针对梁宝寺煤矿二号井35001工作面位于瓦斯异常区,回风隅角瓦斯浓度经常超限,治理难度较大的问题,提出了组合式分区注水防治技术。对注水区域进行了划分,设计了组合式分区注水参数,并对注水瓦斯防治效果进行检验。结果表明:注水后,动压区内的瓦斯得到了释放、工作面回风隅角瓦斯浓度超限的情况得到改善、高位钻孔抽放瓦斯浓度增加,煤体自燃倾向降低,瓦斯异常涌出现象明显降低;组合式分区煤层注水不仅能够润湿煤体,还能够对煤体中的瓦斯进行驱替,对瓦斯异常区内综放工作面的瓦斯防治具有一定借鉴意义。
The combined partition water prevention and control technology was put forward which aiming at the difficult problem of liangbaosicoal mine No.2 well that 35001 working face in the gas abnormal area, and the concentration of gas in upper comer often overrun. In thispaper, injection area were divide, partition water injection parameters was designed, and the effect of gas prevention and control about waterinjection were tested. The results show that ,after water injection, the pressure of gas in the dynamic region have been released, the situation ofworking face upper comer gas concentration overrun and the abnormal phenomena of gas emission were improved. Combined partition waterinjection can not only wet coal seam, but also control the concentration of gas. That has certain referential significance to the gas control wherethe gas area is abnormal in the fully mechanized coal face.
出处
《煤矿现代化》
2017年第6期73-75,79,共4页
Coal Mine Modernization
关键词
瓦斯异常区
综放工作面
组合式分区注水
瓦斯治理
Gas anomaly area
Fully mechanized top coal caving face
Combination type water injection
Gas control
