Home > Term: rock hole
rock hole
A short staple shaft driven from a lower to a higher coal seam and used for the gravity transfer of coal to the haulage road in the lower seam.
- Part of Speech: noun
- Industry/Domain: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
0
Creator
- ed.young
- 100% positive feedback
(Milwaukee, United States)