Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Methods and costs of sinking shaft through fractured water-bearing formation at Friedensville, Pa
Methods and costs, in units of labor and materials, of sinking seven compartment vertical shaft 1261 ft; shaft designed for hoisting 2500 tons per day; grouting and concreting program was conducted to seal shaft from water; water pressure near bottom of shaft was 535 psi. (See also condensation in Min J v 243 n 6206 July 30 1954 p 127-9)
Methods and costs of sinking shaft through fractured water-bearing formation at Friedensville, Pa
Methods and costs, in units of labor and materials, of sinking seven compartment vertical shaft 1261 ft; shaft designed for hoisting 2500 tons per day; grouting and concreting program was conducted to seal shaft from water; water pressure near bottom of shaft was 535 psi. (See also condensation in Min J v 243 n 6206 July 30 1954 p 127-9)
Methods and costs of sinking shaft through fractured water-bearing formation at Friedensville, Pa
U S Bur Mines -- Information Cir
Hastings, W. (Autor:in) / Kane, F.J. (Autor:in) / Longyear, E.J. (Autor:in) / Wright, F.D. (Autor:in)
1954
18 pages
24 Supp plates
Report
Englisch
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