A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bureau of mines research in hydraulic coal mining
Analysis of US Bur Mines investigation of hydraulic mining of American coal beds; experiments were conducted in hard bituminous Pittsburgh seam; tests were made with 1/8, 1/4, 3/8 and 1/2 in. nozzle openings; most of tests were made at pressures of 4000 psi; experiments proved Pittsburgh bed can be mined hydraulically.
Bureau of mines research in hydraulic coal mining
Analysis of US Bur Mines investigation of hydraulic mining of American coal beds; experiments were conducted in hard bituminous Pittsburgh seam; tests were made with 1/8, 1/4, 3/8 and 1/2 in. nozzle openings; most of tests were made at pressures of 4000 psi; experiments proved Pittsburgh bed can be mined hydraulically.
Bureau of mines research in hydraulic coal mining
Min Congress J
Wallace, J.J. (author)
1961
2 pages
Article (Journal)
English
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