Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Outline history of mine in Fournier Township, Que; design of concrete head-frame at No 4 shaft; shaft was sunk in graywacke hanging wall, at inclination of 60°, 5-compartment and capable of handling 2000 tons of ore per day; construction details; reinforcing steel averaged 180 lb per cu yd concrete for actual headframe, and 147 lb for whole job.
Outline history of mine in Fournier Township, Que; design of concrete head-frame at No 4 shaft; shaft was sunk in graywacke hanging wall, at inclination of 60°, 5-compartment and capable of handling 2000 tons of ore per day; construction details; reinforcing steel averaged 180 lb per cu yd concrete for actual headframe, and 147 lb for whole job.
East malartic mines
Can Min J
Grant, Jr., A.J. (Autor:in)
1948
8 pages
Aufsatz (Zeitschrift)
Englisch
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