Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shield tunneling on Chicago subways
Driving of 20,000 ft of single track tunnels, using four shields under compressed air, at average advance of 25 ft daily; removing concrete lined Chicago freight tunnel ahead of shields and backfilling with sand; primary lining with fabricated structural steel segments; mining out of areas for stations; design of shield tunnels; plant layout; shield operation.
Shield tunneling on Chicago subways
Driving of 20,000 ft of single track tunnels, using four shields under compressed air, at average advance of 25 ft daily; removing concrete lined Chicago freight tunnel ahead of shields and backfilling with sand; primary lining with fabricated structural steel segments; mining out of areas for stations; design of shield tunnels; plant layout; shield operation.
Shield tunneling on Chicago subways
Eng News-Rec
Engineering News-Record ; 126
1941
6 pages
Aufsatz (Zeitschrift)
Englisch
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