First North American longwall in pitching seams proven feasible

Journal Article · Thu Dec 01 00:00:00 EST 1983 · Min. Eng. (Littleton, Colo.); (United States)

OSTI ID:5200634

Reynolds, J F

Snowmass Coal Co. of Colorado introduced longwall working of pitching seams in North America, with operation commencing in 1981. Experience is recounted and has shown that longwall working at an inclination up to 45 degrees should be comparable with that in flat seams. It should also be cost-competitive. The troika concept of roof support showed it to have excellent maneuveability, good support and low maintenance requirements. Coal winning was by chainless haulage shearer with motor-driven roll rack drive units.

• OSTI ID: 5200634
• Journal Information: Min. Eng. (Littleton, Colo.); (United States), Vol. 35:12
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
LONGWALL MINING
USA
COAL MINING
COAL SEAMS
INCLINED STRATA
ROOFS
SHEARER LOADERS
STRATA CONTROL
SUPPORTS
COAL DEPOSITS
CUTTER LOADERS
EQUIPMENT
GEOLOGIC DEPOSITS
GEOLOGIC STRATA
GEOLOGIC STRUCTURES
MECHANICAL STRUCTURES
MINERAL RESOURCES
MINING
MINING EQUIPMENT
NORTH AMERICA
RESOURCES
UNDERGROUND MINING
012000* - Coal
Lignite
& Peat- Mining