Methods and costs of thin-seam mining. Final report, 25 September 1977-24 January 1979. [Thin seam in association with a thick seam]
This report defines the state of the art (circa 1978) in removing thin coal seams associated with vastly thicker seams found in the surface coal mines of the western United States. New techniques are evaluated and an innovative method and machine is proposed. Western states resource recovery regulations are addressed and representative mining operations are examined. Thin seam recovery is investigated through its effect on (1) overburden removal, (2) conventional seam extraction methods, and (3) innovative techniques. Equations and graphs are used to accommodate the variable stratigraphic positions in the mining sequence on which thin seams occur. Industrial concern and agency regulations provided the impetus for this study of total resource recovery. The results are a compendium of thin seam removal methods and costs. The work explains how the mining industry recovers thin coal seams in western surface mines where extremely thick seams naturally hold the most attention. It explains what new developments imply and where to look for new improvements and their probable adaptability.
- Research Organization:
- Montana Coll. of Mineral Science and Technology, Butte (USA)
- DOE Contract Number:
- FG01-77ET12543
- OSTI ID:
- 6859500
- Report Number(s):
- DOE/ET/12543-1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SURFACE MINING
ECONOMICS
MINING EQUIPMENT
COAL
COAL MINING
COAL SEAMS
COST
NUMERICAL DATA
RECOVERY
REGULATIONS
THICKNESS
CARBONACEOUS MATERIALS
COAL DEPOSITS
DATA
DIMENSIONS
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
INFORMATION
MATERIALS
MINERAL RESOURCES
MINING
RESOURCES
012000* - Coal
Lignite
& Peat- Mining