Brought to you by InfoMine

MINING.com - a mine of information

Mining Dictionaries

Mining & Mineral Dictionary

Search through more than 27,000 terms & definitions:

Hard Rock Miners Dictionary

Author: Jack De La Vergne

Mining Rule of Thumb

Mining Field: Rock Mechanics
Area: Ground Control (Rule #22)

The thickness of the beam (zone of uniform compression) in the back of a bolted heading is approximately equal to the rock bolt length minus the spacing between them.

Mining Events