shortwall
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English
Etymology
Noun
shortwall (plural shortwalls)
- (mining, often attributive) A short wall of coal that is mined in a single slice.
- Coordinate term: longwall
- 1960, Colliery Guardian Overseas, page 50:
- In addition to its work on longwall faces, the A.B. Fifteen has been adapted for shortwall work either as undercutter or as overcutter, particular care having been taken to give it increased manoauvrability by the provision of special pulleys, and increased mobility by the addition of a tilting underframe.
- 1977, Larry E. Green, Eugene Robert Palowitch, Comparative shortwall and room-and-pillar mining costs, page 16:
- Under this philosophy, the extra daily shortwall production of 55 tons of clean coal would be costed at $8.39 per ton.