Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shaft sinking through heavy overburden at Falconbridge
Overburden 60 to 200 ft gravel, sand, boulders, fine silt, and quicksand; steel shield assembled and excavation proceeded; when at 10 ft depth, trusses were erected to support end plates of timber sets; shaft timbers carried down inside shield; sinking proceeded by digging inside and jacking down shield; cables for additional timber support; concreting shaft; cost data. (Bul n 311 Mar 1938)
Shaft sinking through heavy overburden at Falconbridge
Overburden 60 to 200 ft gravel, sand, boulders, fine silt, and quicksand; steel shield assembled and excavation proceeded; when at 10 ft depth, trusses were erected to support end plates of timber sets; shaft timbers carried down inside shield; sinking proceeded by digging inside and jacking down shield; cables for additional timber support; concreting shaft; cost data. (Bul n 311 Mar 1938)
Shaft sinking through heavy overburden at Falconbridge
Can Inst Min Met -- Trans
Oliver, R.M. (Autor:in)
Canadian Institute of Mining and Metallurgy -- Meeting ; 1938
1938
9 pages
Aufsatz (Konferenz)
Englisch
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