Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
In deep gold mine near Johannesburg, South Africa, dividing wall was built in concrete lined shaft of 24-ft diam for upcast and downcast air; wall extends to depth of 5000 ft in main shaft, and to further 3000 ft depth in subvertical shaft; it is constructed on vertical center line in precast reinforced sections.
In deep gold mine near Johannesburg, South Africa, dividing wall was built in concrete lined shaft of 24-ft diam for upcast and downcast air; wall extends to depth of 5000 ft in main shaft, and to further 3000 ft depth in subvertical shaft; it is constructed on vertical center line in precast reinforced sections.
8,000 foot precast vertical wall
World Construction
Gray, E.E. (Autor:in)
World Construction ; 10
1957
Aufsatz (Zeitschrift)
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
PRECAST VERTICAL RETAINING WALL AND CONSTRUCTION METHOD THEREFOR
| Europäisches Patentamt | 2018
PRECAST WALL BODY PRODUCTION METHOD, AND PRECAST WALL BODY MOLD
| Europäisches Patentamt | 2023