Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Railroad tunnels "daylighted" by company forces
Elimination of tunnels on Southern Pacific lines by excavating through overburden to grade was necessary in order to remove restrictive clearances; grading done by railroads own forces; cost figures demonstrated economy of methods; other tunnels eliminated by relocation of main line.
Railroad tunnels "daylighted" by company forces
Elimination of tunnels on Southern Pacific lines by excavating through overburden to grade was necessary in order to remove restrictive clearances; grading done by railroads own forces; cost figures demonstrated economy of methods; other tunnels eliminated by relocation of main line.
Railroad tunnels "daylighted" by company forces
Civ Eng (NY)
Mayo, E.E. (Autor:in)
1946
4 pages
Aufsatz (Zeitschrift)
Englisch
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