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Publication of BE585271ApublicationCriticalpatent/BE585271A/fr
E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
E21D11/14—Lining predominantly with metal
E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
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BE585271A1958-12-051959-12-03Cadre articulé pour le soutènement d'espaces souterrains, en particulier pour le soutènement de galeries.
BE585271A
(fr)