A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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
Article (Journal)
English
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