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A platform for research: civil engineering, architecture and urbanism
Method joints together prefabricated concrete arch segments; placing apparatus consists of annular outer form with rollers on its inner side and of partially annular inner form with rollers on its outer side; segments are placed between forms by turning inner form as necessary; hydraulic jacks move inner form, arrange segments, and press them together when their annularity is completed; grouting of segments.
Method joints together prefabricated concrete arch segments; placing apparatus consists of annular outer form with rollers on its inner side and of partially annular inner form with rollers on its outer side; segments are placed between forms by turning inner form as necessary; hydraulic jacks move inner form, arrange segments, and press them together when their annularity is completed; grouting of segments.
"Pretub" method for lining circular tunnels
Le procede "Pretub" pour la realisation du revetement des galeries circulaires
Balensi, J. (author)
Genie Civil ; 136
1959
2 pages
Article (Journal)
French
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