摘要
官地矿3号煤层矿山压力大,顶板松软,滚片帮严重,开采时经常漏顶。通过多年实践,摸索出了巷道快速掘进控顶法及回采时控滚防片控顶法的经验。
In the No.3 seam of Guandi Mine, there are some problems like high pressure, soft roof, serious rib spalling, and falling roof in the mining. Many years practice has concluded a roof control method： speed driving and rolling control in the caving.
出处
《山西煤炭》
2014年第1期54-56,共3页
Shanxi Coal
关键词
开采概况
前锚后蓬
锚滚固片
mining situation
front anchor and back canopy
fixing piece against anchor rolling
