Patent EA-000773-B1 (EA)
Title: Method for founding of a building or plant construction and apparatus for the use of the method
Inventor: ADSBOLL BJARNE
IPC: E02D37/00
Filed: 1997-08-26
Abstract: 1. A method for laying a foundation for an existing building structure, said method comprising establishment of a distance between a foundation of the building structure (1) and a foundation pile (2) with an upper part providing a carrier surface (7) on the foundation pile (2) and establishment of a core between the carrier surface (7) on the foundation pile (2) and a carrier surface on the foundation (l), and where the core between the carrier surface on the foundation (1) and the carrier surface of the foundation pile (2) is a cast core, that the fluid for establishing the cast core is a curable casing material that the curable casting material is let into the cylinder under pressure and a pressure of the fluid is established in the cylinder (6), that the cylinder is filled with the curable casting material under pressure until the top piston and the bottom piston are situated in their respective positions, and that the curable casting material is cured, characterized in that a cylinder (6) is arranged between the carrier surface (7) on the foundation pile (2) and the carrier surface on the foundation (1)/with a top piston (8) directed towards the carrier surface (3) on the foundation (l) and a bottom piston directed towards the carrier surface (7) on the foundation pile (2), that a fluid under pressure is let into the cylinder (6), that the cylinder is/filled with the fluid under pressure until the top piston (8) is in contact with a carrier  surface (3) on the foundation (1) and until the bottom piston (9) is in contact with the carrier surface (7) on the foundation pile (2), said pressure being greater than the pressure by gravity of the building structure on the foundation pile and being smaller than the largest possible load of pressure that the foundation pile is able to assimilate without sinking. 2. A method for laying a foundation for an existing building structure, said method comprising excavation under an existing foundation (1), removal of the upper part of an existing foundation pile (2) to provide a carrier surface (7) on a remaining foundation pile (2) and establishment of a core between the carrier surface (7) on the foundation pile (2) and a carrier surface on the foundation (l), and where the core between the carrier surface on the foundation (1) and the carrier surface of the foundation pile (2) is a cast core, that the fluid for establishing the cast core is a curable casing material that the curable casting material is let into the cylinder under pressure and a pressure of the fluid is established in the cylinder (6), that the cylinder is filled with the curable casting material under pressure until the top piston and the bottom piston are situated in their respective positions, and that the curable casting material is cured, characterized in that a cylinder (6) is arranged between the carrier surface (7) on the foundation pile (2) and the carrier surface on the foundation (1)/with a top piston (8) directed towards the carrier surface (3) on the foundation (l) and a bottom piston directed towards the carrier surface (7) on the foundation pile (2), that a fluid under pressure is let into the cylinder (6), that the cylinder is/filled with the fluid under pressure until the top piston (8) is in contact with a carrier  surface (3) on the foundation (1) and until the bottom piston (9) is in contact with the carrier surface (7) on the foundation pile (2), said pressure being greater than the pressure by gravity of the building structure on the foundation pile and being smaller than the largest possible load of pressure that the foundation pile is able to assimilate without sinking. 3. A method according to claim 1 or claim 2, characterized in that a pillow (21) of ground-moist concrete is placed between the top piston (8) and the carrier surface on the building or plant structure (3) of the existing foundation (1). 4. A method according to any of the preceding claims, characterized in that a number of pressure accumulators are arranged between the top piston and the carrier surface (3) on the existing foundation (1), alternatively between the bottom piston (9) and the carrier surface (7) on the foundation means (2). 5. A method according to any one of the preceding claims, characterized in that engagement members (25,26,27) are provided between the bottom piston (9) and the carrier surface (7) on the foundation means (2) for establishment of a non-skid joint, preferably a both non-skid and moment-stable joint, between the cylinder (6) and the foundation means (2). 6. An apparatus for use by the method according to any one of claims 1-5, which apparatus comprises a cylinder (6) with a number of pistons, preferably a top piston (8) and a bottom piston (9), and which pistons are telescopically displaceable in relation to one another, preferably that the top piston (8) is telescopically displaceable in relation to the bottom piston (9), and where at least one of the pistons (8, 9) is provided with an inlet (11) for a fluid, characterized in that the inlet (11) is provided with a valve (16), and that the valve is able to adjust the pressure of the fluid being pumped into the cylinder depending on maintaining the level of a building structure abutting the top piston (8) and depending on avoiding sinking of a foundation pile the upper part of which abutting the bottom piston (9). 7. An apparatus according to claim 6, characterized in that the cylinder (6) is provided with an inlet (14) and an outlet (17), that the inlet (14) is provided in the bottom piston (9), that the outlet (17) is provided in the top piston (8), and that the inlet (11) furthermore is provided with a manometer (15). 8. An apparatus according to any one of claims 6-7, characterized in that a stocking is arranged inside the cylinder (6), and that the stocking is intended to extend from the bottom of the bottom piston (9) to the top of the top piston (8) along inner sides of the bottom piston and the top piston. 9. An apparatus according to any one of claims 6-8, characterized in that the cylinder consists of at least one first cylinder part and one second cylinder part, that the at least first cylinder part and second cylinder part are intended to enter into engagement along propellers of the cylinder, and that the at least first cylinder part and second cylinder part are intended to be separated along the propellers. 10. An apparatus according to any one of claims 6-9, characterized in that a sealing device (10) is arranged between the top piston (8) and the bottom piston (9), that the sealing device comprises a sealing element, preferably a labial sealing, most preferably an O-ring sealing.