Bord-and-pillar mining explained

By Ben Langford
Updated June 2 2017 - 2:14pm, first published May 31 2017 - 12:47pm
Shear size: A longwall miner in action on the coal face underground.
Shear size: A longwall miner in action on the coal face underground.

What is bord-and-pillar mining?

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