A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mining Engineer: The Operation of Mines in France
The operation of mines calls for the solution of more varied and more difficult problems from year to year, since coal beds near the surface, easy to explore and to mine, are getting exhausted, and it is becoming necessary to go to great depths, under water-bearing strata or into strata having little or no cohesion, in order to find poor mineral ores or coal beds containing large volumes of fire-damp.
Mining Engineer: The Operation of Mines in France
The operation of mines calls for the solution of more varied and more difficult problems from year to year, since coal beds near the surface, easy to explore and to mine, are getting exhausted, and it is becoming necessary to go to great depths, under water-bearing strata or into strata having little or no cohesion, in order to find poor mineral ores or coal beds containing large volumes of fire-damp.
Mining Engineer: The Operation of Mines in France
Gruner, E. (author)
Transactions of the American Society of Civil Engineers ; 54 ; 111-120
2021-01-01
101905-01-01 pages
Article (Journal)
Electronic Resource
Unknown
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