Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Small shield-driven tunnel lined with trapeozoidal blocks
Description of interlocking precast units of new shape used in 4-ft drainage tunnel 170 ft long, under Pennsylvania Railroad tracks at Norristown, Pa; blocks made on job in hydraulic press having capacity of 400 blocks per day; shield design; tunnel driving; placing blocks.
Small shield-driven tunnel lined with trapeozoidal blocks
Description of interlocking precast units of new shape used in 4-ft drainage tunnel 170 ft long, under Pennsylvania Railroad tracks at Norristown, Pa; blocks made on job in hydraulic press having capacity of 400 blocks per day; shield design; tunnel driving; placing blocks.
Small shield-driven tunnel lined with trapeozoidal blocks
Eng News-Rec
Engineering News-Record ; 111
1933
2 pages
Aufsatz (Zeitschrift)
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
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