E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
61/61
E21D 9/00 (2006.01)
Patent
CA 2024423
The invention falls within the art field of shields used in the excavation of tunnels for any given utility (rail, road, underground railway, sewers, pipelines, power cables etc.), and of all sizes. The plant disclosed provides a temporary support structure for tunnel walls, entirely self-propelled and extendible along the direction of excavation, the interior of which accommodates equipment used in digging operations and for the removal of spoil; accordingly, the structure acts as a temporary shoring facility during excavation works, moving forward through the bore and carrying within it the complete battery of excavation and auxiliary equipment while enabling installation immediately behind of the permanent pre-cast or cast in-situ tunnel lining.
L'invention est du domaine des boucliers utilisés pour l'excavation de tunnels de toutes dimensions pour le passage de divers services (chemin de fer, route, métro, égout, pipelines, câbles d'énergie électrique). L'installation faisant l'objet de l'invention est une structure de support provisoire pour les parois de tunnels, automotrice, et évolutive dans le sens de l'excavation. L'intérieur de l'installation peut recevoir l'équipement utilisé pour le creusage et pour l'évacuation des déblais; par conséquent, la structure agit comme installation provisoire d'étaiement durant les travaux d'excavation et elle se déplace dans la même direction que l'avancement du forage, transportant avec elle l'ensemble complet de matériel d'excavation et d'appui tout en permettant la mise en place, directement derrière, d'un revêtement de tunnel permanent, préfabriqué ou coulé sur place.
Gowling Lafleur Henderson Llp
Pacchiosi Doriano
LandOfFree
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