Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Driving 4,230-ft tunnel in Yosemite National Park
Construction of vehicular tunnel of semi-circular section with 14-ft radius on 5-ft springline solving difficult highway-location problem on major approach route; driving procedure modified as work progressed to increase daily advance from 5.6 to 18 ft; ventilation system; drilling diagrams of tunnel driving; concrete lining and paving; driving, with both heading and bench-drilling; curved bars used in drilling wing holes.
Driving 4,230-ft tunnel in Yosemite National Park
Construction of vehicular tunnel of semi-circular section with 14-ft radius on 5-ft springline solving difficult highway-location problem on major approach route; driving procedure modified as work progressed to increase daily advance from 5.6 to 18 ft; ventilation system; drilling diagrams of tunnel driving; concrete lining and paving; driving, with both heading and bench-drilling; curved bars used in drilling wing holes.
Driving 4,230-ft tunnel in Yosemite National Park
Eng News-Rec
Moore, C.S. (Autor:in)
Engineering News-Record ; 111
1933
3 pages
Aufsatz (Zeitschrift)
Englisch
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