MINE PLANNING BASICS FRIDAY - BOARD & PILLAR COAL MINING!!
This one is for you James! The board & pillar mining method consists of driving a series of narrow roads, separated by blocks of solid coal, parallel to one another, and connecting them by another set of narrow parallel road ways driven nearly at right angles to the first set. The coal pillars formed are extracted after the development of the mine leasehold and this later stage of extracting coal from pillars is known as depillaring - Mining Funda.