摘要
山西潞安集团司马煤业有限公司井下开采的3号煤层属于单一厚煤层,煤层透气性较差。结合裂隙带钻孔抽采实测数据,研究分析了裂隙带钻孔布孔方式、终孔层位等参数以及工作面推进情况对其抽采效果的影响,为同类型煤层回采工作面瓦斯抽采提供了借鉴价值。
No. 3 coal seam of Sima Mining Industry Corporation Ltd., Lu＇an Group was single thick coal seam, with poor permeability. Combined with the fracture zone borehole extraction from the measured data, fracture zone driUing hole arrangement, final hole horizon parameters and working face advancing influencing extraction effect were studied and analyzed, which provided certain reference value for same typed coal seam stoping gas extraction.
出处
《煤炭与化工》
CAS
2014年第9期120-121,共2页
Coal and Chemical Industry
关键词
低透气
裂隙带钻孔抽采
钻孔抽采
low permeability
fracture zone borehole extraction
borehole extraction
