DEVICE FOR RAISING AND SUPPORTING THE FOUNDATION OF A BUILDING, AND PILE ASSEMBLY THEREFOR

摘要

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 a by front loading in the second assembly.