Longwall mining; Future concerns that must be addressed

Journal Article · Mon Oct 01 04:00:00 EDT 1990 · Mining Engineering (Littleton, Colorado); (USA)

OSTI ID:6354442

Lewis, B C

The coal miming industry has experienced a general trend toward longwall operations. An increasing percentage of underground coal is being mined by longwalls. And productivity in longwalls is likewise increasing. Operations of longwalls, however, have not yet reached a state of mining euphoria. Competitiveness within the industry and from alternate fuel sources is forcing continued pursuit of higher productivities and lower costs. This paper discusses trends in the industry. Longwall mines, as defined here, are those reportedly having longwalls installations in each of the respective years. Production from both the continuous miner and longwall units is included in the longwall mines. Non-longwall mines are all other underground mines. Productivity calculations are based on total employee-hours associated with the operation.

• OSTI ID: 6354442
• Journal Information: Mining Engineering (Littleton, Colorado); (USA), Journal Name: Mining Engineering (Littleton, Colorado); (USA) Vol. 42:10; ISSN MIENA; ISSN 0026-5187
• Country of Publication: United States
• Language: English

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