Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tunnel lining made easy with precast concrete units
Method of replacing timber linings on Western Pacific under traffic with prestressed concrete ribs and plant lagging; precast-concrete tunnel ribs are 12 in. square in cross section and are made in half-sections, with each section placed on concrete footing and connected to its mate at top by arch key; ribs are placed tight together in number required at portals.
Tunnel lining made easy with precast concrete units
Method of replacing timber linings on Western Pacific under traffic with prestressed concrete ribs and plant lagging; precast-concrete tunnel ribs are 12 in. square in cross section and are made in half-sections, with each section placed on concrete footing and connected to its mate at top by arch key; ribs are placed tight together in number required at portals.
Tunnel lining made easy with precast concrete units
Ry Track Structures
1965
2 pages
Aufsatz (Zeitschrift)
Englisch
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