Trying low-wall stripping and cast-blasting, too

Journal Article · Wed Oct 01 04:00:00 EDT 1986 · Coal Age; (United States)

OSTI ID:7002975

Chironis, N P

Many mines find that they incur more rehandle than is economically sound. This is true in the Hanna Basin area of Wyoming, where low-sulfur coal lies in multiple dipping seams. Such seams bring about sophisticated techniques, among which are stripping from the low wall (spoil side), coupled with cast blasting. One mine that reports success with a combination of low-wall dragline stripping and cast blasting is the Medicine Bow mine, northwest of Hanna in southern Wyoming. The mine, operated by a joint venture of Arch Mineral Corp. and Rocky Mountain Energy, lies in an area characterized by high plains with flat to gently rolling surfaces. The two pits at the mine strip four, and in some areas five, bands of coal, all in the Ferris Formation.

• OSTI ID: 7002975
• Journal Information: Coal Age; (United States), Journal Name: Coal Age; (United States) Vol. 91:10; ISSN COLAA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012020* -- Coal
Lignite
& Peat-- Surface Mining-- (1987-)
COAL DEPOSITS
COAL MINES
COAL SEAMS
COMMINUTION
DEPTH
DIMENSIONS
DRAGLINES
EARTHMOVING EQUIPMENT
EQUIPMENT
EXPLOSIVE FRACTURING
FEDERAL REGION VIII
FRACTURING
GEOLOGIC DEPOSITS
JOINT VENTURES
MATERIALS HANDLING
MATERIALS HANDLING EQUIPMENT
MINERAL RESOURCES
MINES
MINING
NORTH AMERICA
OVERBURDEN
REMOVAL
RESOURCES
SPOIL BANKS
SULFUR CONTENT
SURFACE MINING
UNDERGROUND FACILITIES
USA
WYOMING