| 高位瓦斯抽放钻孔在降低综采工作面瓦斯浓度中的应用 |
| |
| 引用本文： | 王永军,刘文兰.高位瓦斯抽放钻孔在降低综采工作面瓦斯浓度中的应用[J].中国煤炭地质,2008(9):74-75. |
| |
| 作者姓名： | 王永军 刘文兰 |
| |
| 作者单位： | 开滦集团林南仓矿业分公司地测科,河北唐山064106 |
| |
| 摘 要： | 林南仓属于低瓦斯矿井,但存在高瓦斯区域。煤层和采空区是瓦斯的主要来源,尤以采空涌出量大,给煤矿生产和安全带来了极大隐患。通过在1129综采工作面风道施工高位瓦斯孔,把钻孔打到采空区一侧煤层顶板以上冒落裂隙带内,用钻孔进行瓦斯抽放,使采空内的瓦斯通过裂隙带沿钻孔抽出,有效降低综采工作面瓦斯浓度,保证综采工作面正常回采和安全生产。
|
| 关 键 词： | 瓦斯抽放 高位钻孔 采空区 综采工作面 |
Application of High-level Gas Drainage Borehole in Fully Mechanized Mining Working Face Gas Concentration Lowering |
| |
| Wang Yongjun,Liu Wenlan.Application of High-level Gas Drainage Borehole in Fully Mechanized Mining Working Face Gas Concentration Lowering[J].Coal Geology of China,2008(9):74-75. |
| |
| Authors: | Wang Yongjun Liu Wenlan |
| |
| Institution: | (Geological and Surveying Section, Linnancang Mining Branch, Kailuan Group, Yutian, Hebei 064106) |
| |
| Abstract: | The Linnancang coalmine is a low gas mine, but high gas content areas existed. Coal seams and gob areas are major sources of gas; especially gas emission from gob areas is quite large and hidden trouble of mine production and mine safety. Through high-level borehole drilling in ventilation duct of No.1129 fully mechanized mining working face, drilled a borehole into caving fractured zone near the gob area and above the coal roof. To carry out gas drainage through the borehole, effectively lowered down gas concentration in the working face and ensured normal extraction and safety in production. |
| |
| Keywords: | gas drainage high-level borehole gob area fully mechanized mining working face |
| 本文献已被 维普 等数据库收录！ |
|
