轻型钻掘机在“三软”煤层煤巷掘进中的应用

Light Drills Digs "Three soft" Coal Bed Coal Lane Tunneling Application

介绍了用轻型悬臂式煤巷钻掘机在“三软”不稳定煤层煤巷中快速掘进的应用及特点,在郑煤集团及郑州矿区其它中、小型煤矿中有很高的推广价值。

Introduced drills with the light cantilever coal lane digs machine in ＂three soil＂the unstable coal bed coal lane the high- speed driving application and the characteristic, in Zheng coal group and Zhengzhou mining area other, in the small coal mine has the very high promoted value.