Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Heavy construction on Norfolk and western
Two new coal feeders, nearing completion, with combined length of 52 1/2 mi., involve three long tunnels and 3,400,000 cu. yd. of open excavation; Big Sandy line replaces narrow gage; new alignment deviates from old; first tunnel lined with concrete and second cut through limestone.
Heavy construction on Norfolk and western
Two new coal feeders, nearing completion, with combined length of 52 1/2 mi., involve three long tunnels and 3,400,000 cu. yd. of open excavation; Big Sandy line replaces narrow gage; new alignment deviates from old; first tunnel lined with concrete and second cut through limestone.
Heavy construction on Norfolk and western
Ry. Age
Railway Age ; 90
1931
5 pages
5 Figs.
Aufsatz (Zeitschrift)
Englisch
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