E - Fixed Constructions – 02 – D
Patent
E - Fixed Constructions
02
D
E02D 7/26 (2006.01) E21B 7/00 (2006.01) E21B 17/10 (2006.01)
Patent
CA 2266550
The invention relates to a method in or relating to piling of e.g. tubular bases which are placed and, possibly, casted within a hole drilled out in earth mass in ground or the like. One uses a generally known drilling rig, in which a bit (30) is assigned a drilling hammer (28), and drills a hole having a depth approximately corresponding to the base pipe. If there exists a need for piling, the drill string is swung aside, away from the hole, after having been pulled up, and one or, possibly, a plurality of piles (42) is/are rammed down with a starting point at the bottom level of the bore hole. In order to drive the pile(s) (42) down, the drilling hammer (28) of the drilling rig is used.
L'invention concerne un procédé se rapportant à l'empilage, par exemple, de bases tubulaires qui sont placées et, éventuellement, coulées dans un trou foré dans la masse terreuse du sol ou analogue. On utilise généralement une installation de forage classique, dans laquelle un trépan (30), pourvu d'un marteau perforateur (28), fore un trou dont la profondeur correspond approximativement au tuyau de base. Si un empilage s'avère nécessaire, on balance le train de tiges sur le côté, à distance du trou, après l'avoir retiré de celui-ci, et on enfonce par battage au mouton une ou plusieurs piles (42) avec comme point de départ, le niveau inférieur du trou de forage. Pour enfoncer la (les) pile(s) (42), on utilise le marteau perforateur de l'installation de forage.
Ridout & Maybee Llp
Roynestad Tom Toralv
Underhaug Njal
LandOfFree
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