The method for padding ground below a duct using excavated...

E - Fixed Constructions – 02 – F

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E02F 5/10 (2006.01) E02D 3/046 (2006.01) E02F 3/96 (2006.01) E02F 5/22 (2006.01) E02F 7/02 (2006.01) E02D 3/00 (2006.01)

Patent

CA 2298466

The present invention relates to a method for padding ground below a duct (1) using excavated soil (2), wherein said method uses a vehicle (6) that comprises a soil feeding organ (13), a transport organ (14) and soil compacting organs (104, 105). The vehicle moves along a ground path (16) which is formed by the soil feeding organ (13) as it collects excavated soil (2). This method allows for a reliable orientation of the soil compacting organs (104, 105) relative to the duct (1), wherein said compacting organs apply a force on the soil previously deposited in the trench (4). This invention also relates to a device which is used for padding ground below a duct (1) and comprises a device (106) for hanging a soil-compacting mechanism (103) to the vehicle (6). The device (106) includes a disconnection mechanism (153) that enables the cyclic displacement of the rammer-type compacting organs (104, 105) in the displacement direction of the vehicle (6). When compacting soil, the working members (171) of the compacting organs (104, 105) are capable of cyclic downward displacement towards each other while simultaneously rotating in a direction in which the angle they define becomes smaller. This system may be used for efficiently compacting soil below a duct (1) while minimising the stress applied by the soil to the surface of said duct (1).

Cette invention concerne un procédé qui permet de damer le sol sous une conduite (1) à l'aide de terre excavée (2). Ce procédé fait appel à un véhicule (6) qui comprend des organes d'alimentation en terre (13), de transport (14) et de compactage de la terre (104, 105). Ce véhicule se déplace le long d'un chemin au sol (16) qui est formé par l'organe d'alimentation en terre (13) lorsque ce dernier récupère la terre excavée (2). Ce procédé assure une orientation fiable des organes de compactage de la terre (104, 105) par rapport à la conduite (1), lesquels organes vont exercer une action sur de la terre préalablement déversée dans la tranchée (4). Cette invention concerne également un dispositif permettant d'effectuer un tel damage, lequel comprend un dispositif (106) qui permet de suspendre au véhicule (6) un mécanisme de compactage de la terre (103). Ce dispositif (106) comprend un mécanisme de déconnexion (153) permettant aux organes de compactage de type dame (104, 105) de se déplacer de manière cyclique dans le sens de déplacement du véhicule (6). Lors du compactage de la terre, les éléments de travail (171) des organes de compactage (104, 105) se déplacent de manière cyclique depuis le haut vers le bas et l'un vers l'autre, ceci tout en tournant dans la direction vers laquelle l'angle qu'ils définissent se réduit. Ce système permet de compacter la terre de manière efficace sous la conduite (1), laquelle terre n'exercera que des contraintes minimes sur la surface de ladite conduite.

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