摘要
高山煤矿主采9号煤层瓦斯含量较大,掘进受瓦斯治理影响时间长,采掘接替紧张。沿空留巷无需治理瓦斯,同时可有效降低巷道掘进率,提高煤炭资源采出率,优势明显。为此对针对高山煤矿煤层顶底板地质条件及受采动影响后的变形特征,对沿空留巷方案进行了分析研究实施,取得了较好的成效。
The gas content of 9th coal seam of main mining area of Gaoshan coal mine,the mining is largely influenced by gas control and the mining cad caving is tense.Using gob-side entry retaining technology not need to control gas and can reduce the caving rate of roadway and increase the recovery rate at the same time,which have lots of benefits.Therefore this thesis aimed at the coal seam roof geological conditions and the deformable features influenced by mining of Gaoshan coal mine,and research the gob-side entry retaining scheme,which obtain the good result.
出处
《煤矿现代化》
2017年第3期38-40,共3页
Coal Mine Modernization
关键词
沿空留巷
研究
应用
gob-side entry retaining
research
application
