Patent ID: 8646232

Claim:
An installed foundation subassembly for supporting a superstructure in a desired attitude at a selected location, the foundation subassembly comprising a precast concrete upper portion having an upper surface and a bottom, and a lower reinforcing bar subassembly, said lower reinforcing bar subassembly comprising one or more reinforcing rods, said one or more reinforcing rods being partially embedded in the precast concrete upper portion by having been casted into the precast concrete upper portion when the precast concrete upper portion was casted, the lower reinforcing bar subassembly extending from the bottom of the precast concrete upper portion, the precast concrete upper portion having, extending from the upper surface thereof, one or more connecting sites for joining the foundation subassembly to the superstructure, the precast concrete upper portion having been cast at a location other than the selected location, wherein the lower reinforcing bar subassembly extends into concrete located in a cavity in an earthen formation at the selected location and forms a pile and wherein all or substantially all of the precast concrete upper portion is located in the cavity in the earthen formation above a lower portion of the lower reinforcing bar subassembly, the lower reinforcing bar subassembly extending downwardly a first distance from a first portion of the bottom of the precast concrete upper portion, the first distance being more than a second distance from the upper surface of the precast concrete upper portion to the first portion of the bottom of the precast concrete upper portion, said lower reinforcing bar subassembly extending downwardly an effective distance into the pile and effectively reinforcing the pile.