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A platform for research: civil engineering, architecture and urbanism
Hydraulic mining of coal is under experimental studies in open pit mining where hydraulic monitors with approximate weight of 440 lb are used; coal is carried away by stream of water to point where oscillating screen separates it and discharges it into tubs; acting factor is gravity so that coal seam must have dip of 3°. English abstract.
Hydraulic mining of coal is under experimental studies in open pit mining where hydraulic monitors with approximate weight of 440 lb are used; coal is carried away by stream of water to point where oscillating screen separates it and discharges it into tubs; acting factor is gravity so that coal seam must have dip of 3°. English abstract.
Testing underground hydraulic mining and transportation of coal in Polish coal mines
Les essais d'abatage et de transport hydrauliques au fond dans les houilleres polonaises
Frey, H. (author)
1958
15 pages
Article (Journal)
French
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