Difference between revisions of "Shortwall mining"

From Conservapedia
Jump to: navigation, search
m (Reverted edits by Jpauljones (talk) to last revision by WesleyS)
 
(4 intermediate revisions by 2 users not shown)
Line 1: Line 1:
{{delete}}
+
A '''shortwall mining''' system consists of a room-and-pillar [[mining]] system in which the working face is wider than usual but smaller (less than 150 feet) than that in longwall mining.
shortwall mining  
+
[[Category:Mining]]
[[category:energy]]
+
[[Category:Seeds to be nurtured]]

Latest revision as of 22:38, January 1, 2012

A shortwall mining system consists of a room-and-pillar mining system in which the working face is wider than usual but smaller (less than 150 feet) than that in longwall mining.