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Operational and geotechnical constraints to coal mining in Alaska's interior

Journal Article:

Abstract

Surface mining of coal from the Poker Flats mining area to the north of Healy, Alaska began in 1978. Current operations involve a 25 m/sup 3/ walking dragline which strips two coal seams, using an extended bench on the second pass; a fleet of trucks and shovels are used for coal removal and some limited overburden stripping. Geotechnical constraints to mining within the steeply dipping coal deposits are discussed. The area had a number of landslides. During 1984, mining operations close to a landslide caused movement to resume. A mine plan was developed which allowed the coal to be safely removed without inducing additional movement. This involves a dipline mining scheme through the slide area. Future mine plans will acknowledge the hazards of mining through potentially unstable zones. Aerial photographs, field mapping and geological exploration were used. 1 ref., 6 figs.
Publication Date:
Jan 01, 1989
Product Type:
Journal Article
Reference Number:
CLA-89-050604; EDB-89-060743
Resource Relation:
Journal Name: Min. Eng. (Littleton, Colo.); (United States); Journal Volume: 41:1
Subject:
01 COAL, LIGNITE, AND PEAT; ALASKA; SURFACE MINING; AERIAL SURVEYING; COAL MINES; GEOLOGIC FAULTS; GEOLOGIC STRUCTURES; GEOLOGIC SURVEYS; GROUND MOTION; INSTABILITY; LANDSLIDES; PLANNING; SAFETY; SOIL MECHANICS; USA; FEDERAL REGION X; GEOLOGIC FRACTURES; MECHANICS; MINES; MINING; MOTION; NORTH AMERICA; SURVEYS; UNDERGROUND FACILITIES; 012020* - Coal, Lignite, & Peat- Surface Mining- (1987-)
OSTI ID:
6176256
Research Organizations:
Golder Associates Inc., Redmond, WA (USA)
Country of Origin:
United States
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: MIENA
Submitting Site:
CLA
Size:
Pages: 21-23
Announcement Date:

Journal Article:

Citation Formats

Corser, P, and Usibelli, M. Operational and geotechnical constraints to coal mining in Alaska's interior. United States: N. p., 1989. Web.
Corser, P, & Usibelli, M. Operational and geotechnical constraints to coal mining in Alaska's interior. United States.
Corser, P, and Usibelli, M. 1989. "Operational and geotechnical constraints to coal mining in Alaska's interior." United States.
@misc{etde_6176256,
title = {Operational and geotechnical constraints to coal mining in Alaska's interior}
author = {Corser, P, and Usibelli, M}
abstractNote = {Surface mining of coal from the Poker Flats mining area to the north of Healy, Alaska began in 1978. Current operations involve a 25 m/sup 3/ walking dragline which strips two coal seams, using an extended bench on the second pass; a fleet of trucks and shovels are used for coal removal and some limited overburden stripping. Geotechnical constraints to mining within the steeply dipping coal deposits are discussed. The area had a number of landslides. During 1984, mining operations close to a landslide caused movement to resume. A mine plan was developed which allowed the coal to be safely removed without inducing additional movement. This involves a dipline mining scheme through the slide area. Future mine plans will acknowledge the hazards of mining through potentially unstable zones. Aerial photographs, field mapping and geological exploration were used. 1 ref., 6 figs.}
journal = {Min. Eng. (Littleton, Colo.); (United States)}
volume = {41:1}
journal type = {AC}
place = {United States}
year = {1989}
month = {Jan}
}