Device for raising and supporting the foundation of a...

E - Fixed Constructions – 02 – D

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E02D 27/48 (2006.01) E02D 5/00 (2006.01) E02D 13/00 (2006.01) E02D 27/00 (2006.01) E02D 35/00 (2006.01) E02D 37/00 (2006.01) E04G 23/06 (2006.01)

Patent

CA 2461493

A device for raising and supporting the foundation of a building comprises a pile, a first assembly adapted to fixed to the foundation, a second assembly adapted to grip the pile to be inserted in the ground, and hydraulic cylinders connected at opposed ends thereof to the first and second assemblies. The cylinders, when retracted, draw the second assembly downwardly for driving the pile in the ground. The first assembly includes a guide tube for guiding the pile while the pile is driven in the ground by the second assembly and the cylinders. The pile is made of a series of longitudinally aligned pile sections that are connected together. Once a lower end of the pile has reached sufficient underground resistance, further actuation of the second assembly causes the foundation to be raised. Once the foundation has been raised to a desired position, the pile is fixed to the guide tube of the first assembly thereby supporting the foundation in the desired position. The second assembly comprises a pair of opposed, jaws that engage the pile when the second assembly is drawn downwardly by the cylinders. The second assembly comprises a side door for allowing pile sections to be added to the pile by front loading in the second. assembly.

La présente concerne un dispositif pour soulever et soutenir les fondations d'un bâtiment au moyen d'un pilier, qui comprend les éléments suivants : un premier ensemble étant fixé aux fondations, un ensemble secondaire étant assujetti au pilier à enfoncer dans le sol, puis des vérins hydrauliques reliés aux deux extrémités du premier et du deuxième ensemble. Les vérins abaissés impriment à l'ensemble secondaire un déplacement vers le bas, ce qui a pour résultat d'enfoncer le pilier dans le sol. Le premier ensemble comprend un tube guide qui oriente le pilier enfoncé dans le sol par l'ensemble secondaire et les vérins hydrauliques. Le pilier se compose d'une série de sections de pieux alignées au plan longitudinal et reliées ensemble. Après que l'extrémité inférieure du pilier a atteint une résistance suffisante sous la terre, un autre déplacement de l'ensemble secondaire provoque le soulèvement des fondations. Après le soulèvement des fondations à la hauteur voulue, le pilier est fixé au tube guide du premier ensemble, ce qui permet de soutenir et de maintenir les fondations à la hauteur voulue. L'ensemble secondaire se compose d'une paire de mâchoires opposées qui sont en prise sur le pilier au moment de l'abaissement de l'ensemble secondaire par les vérins hydrauliques. L'ensemble secondaire est pourvu d'une chicane latérale qui permet l'ajout de sections de pilier par chargement frontal.

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