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Practice of overburden casting at the Trapper Mine - Craig, Colorado

Conference · · Proc. Rocky Mt. Coal Min. Inst.; (United States)
OSTI ID:5934042
Enfield Pit was chosen to test overburden casting at the Trapper Mine in Colorado. Seam and overburden geology, and drilling and blasting patterns are described. Tables summarize the costs involved in cast blasting. The primary problem encountered was coal losses along the open face due to high powder factors and heave of the overburden. It was concluded that cast blasting has the potential of considerable savings in overburden stripping. 3 figures, 2 tables.
OSTI ID:
5934042
Report Number(s):
CONF-8406237-
Conference Information:
Journal Name: Proc. Rocky Mt. Coal Min. Inst.; (United States)
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
CARBONACEOUS MATERIALS
COAL
COAL DEPOSITS
COAL MINING
COAL SEAMS
COMMINUTION
CONSTRAINTS
COST
ECONOMICS
ENERGY SOURCES
EXPLOSIVE FRACTURING
FOSSIL FUELS
FRACTURING
FUELS
GEOLOGIC DEPOSITS
LOSSES
MATERIALS
MINERAL RESOURCES
MINING
OVERBURDEN
PERFORMANCE TESTING
REMOVAL
RESOURCES
SURFACE MINING
TESTING