Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Drainage and pumping at the Cresson mines
Water conditions below Roosevelt drainage tunnel, at mine in Cripple Creek district; electric pumping equipment, 18th level requirement 2200 g.p.m.; 19th level 5200 g.p.m.; steel pressure doors in drift to control flow of water to pumps; 2200-volt current underground; technical data and costs.
Drainage and pumping at the Cresson mines
Water conditions below Roosevelt drainage tunnel, at mine in Cripple Creek district; electric pumping equipment, 18th level requirement 2200 g.p.m.; 19th level 5200 g.p.m.; steel pressure doors in drift to control flow of water to pumps; 2200-volt current underground; technical data and costs.
Drainage and pumping at the Cresson mines
Min. Congress Jl
Rorabaugh, G. (Autor:in)
1929
4 Figs.
Aufsatz (Zeitschrift)
Englisch
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