Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Quarrying and placing 10-ton rocks
Bear River dam consists of 1,340,000 cu yd of loose rock, 152,000-cu yd layer of placed rock on upstream face and reinforced concrete slab; 725,000 cu yd of rock produced by 24 coyote hole, 3 1/2 by 5 ft in section, driven 50 ft into quarry face; secondary drilling and shooting was required to reduce large pieces to sizes that could be handled by shovels; data on mechanical equipment.
Quarrying and placing 10-ton rocks
Bear River dam consists of 1,340,000 cu yd of loose rock, 152,000-cu yd layer of placed rock on upstream face and reinforced concrete slab; 725,000 cu yd of rock produced by 24 coyote hole, 3 1/2 by 5 ft in section, driven 50 ft into quarry face; secondary drilling and shooting was required to reduce large pieces to sizes that could be handled by shovels; data on mechanical equipment.
Quarrying and placing 10-ton rocks
Western Construction
Western Construction ; 27
1952
4 pages
Aufsatz (Zeitschrift)
Englisch
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