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A technical and economic study of candidate underground mining systems for deep, thick oil shale deposits, phase 1 report.
Hoskins WN; Wright FD; Tobie RL; Bills JB; Upadhyay RP
Denver, CO: U.S. Department of the Interior, Bureau of Mines, OFR 23-76, 1975 Jul; :1-331
The contractor investigated and evaluated all potentially feasible methods for large-scale mining of the thick oil shale deposits in the deeper central part of the Piceance Creek Basin of northwestern Colorado. Technical and economic data were obtained, preliminary layouts and designs were prepared, and pertinent operating features and cost data were analyzed and evaluated. The relative merits of each mining method were defined and the following candidates were selected as most promising for detailed design and analysis under Phase II of the contract: (1) chamber and pillar mining with spent shale backfill. (2) Sublevel stoping wiht spent shale backfill. (3) Sub-level stoping with full subsidence. (4) Block caving mining using load-haul-dumps.
Oil shale; Underground mining; Mining engineering; Room and pillar mining; Stope mining; Caving mining; Subsidence; Environmental impacts; Cost analysis; Fixed investment; Operating costs; Depreciation; Technology assessment; Geology; Hydrology; Piceance Creek Basin
CP; Final Contract Report
NTIS Accession No.
OFR 23-76; Contract-S0241074
Denver, CO: U.S. Department of the Interior, Bureau of Mines, OFR 23-76
Cameron Engineers, Inc., Denver, Colorado
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division