Patent ID: 6923599

Claim:
An in-ground method for lifting a structure, said structure having a foundation, said foundation being supported by soil, said method comprising: forming a plurality of spaced excavations underneath said foundation; mounting at least one form in each of said plurality of excavations; positioning hardenable material in a fluid state into said forms in said plurality of excavations to thereby form a plurality of piston assemblies within said excavations, each piston assembly comprising at least one piston comprised of said hardenable material in a fluid state which then hardens from said fluid state to form said at least one piston and at least one cylinder comprised of said hardenable material in a fluid state which then hardens from said fluid state to form said at least one cylinder, said at least one piston and said at least one cylinder being moveable with respect to each other; and pumping fluid into said plurality of piston assemblies to lift said structure and said foundation with respect to said soil.