摘要
南河煤业公司2煤集中运输巷于2012年1月采用锚网喷支护,效果较差,出现大面积顶板破碎垮落。通过对比其他煤巷改为工背梯形棚支护,发现工背梯形棚支护造价高、进度慢。为了加快2煤集中运输巷的进尺,采用了锚、网、梁、索、喷联合支护,取得了良好效果。
In January 2012, Nahe Mining Company adopt anchor net spray support which appeared large broken area roof caving. By comparing the other to work back trapezoidal shed supporting in coal roadway,we found that workers back trapezoidal shed supporting, cost is high, the progress is slow. In order to speed up the 2 coal transportation lane penetration, the spray anchor, mesh, beam and cable, the joint support, has obtained the good effect.
出处
《煤》
2013年第7期17-18,共2页
Coal
关键词
煤巷软岩
联合支护
南河煤矿
soft rock in coal roadway
combined support
Nahe Coal Mine