Punch mine

From Conservapedia
This is the current revision of Punch mine as edited by WesleyS (Talk | contribs) at 15:41, March 15, 2009. This URL is a permanent link to this version of this page.

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

A punch mine is a type of small drift mine used to recover coal from strip-mine highwalls or from small, otherwise uneconomical, coal deposits.

A shaft mine is driven vertically to the coal deposit. A slope mine is driven at an angle to reach the coal deposit.