Patent ID: 11939736
Assignee: AHMED M. PHULY
Field: Civil engineering (Other fields)
Classification: CPC E  B  F  Y | IPC B  E  F

Claim 3:
4. A wind turbine foundation for a wind tower comprising:
an excavation pit at a foundation construction site;
a continuous support slab-on-grade that is cast in situ out of concrete over a prepared subgrade at the bottom of the excavation pit below grade elevation and having generally horizontal rebar mesh therein;
a vertically extending and laterally braced tower supporting pedestal having a top and a base, the pedestal encompassing a vertical reinforcing cage and bursting reinforcing around an array of vertical post tensioning elements therein;
a plurality of concrete ribs on top of and integral with the support slab and integral with the pedestal, the pedestal and the ribs being conjointly cast, in situ, out of concrete, the ribs having connection elements extending therefrom into the pedestal and into the slab such that the ribs, slab and pedestal form a monolithic foundation, the ribs being tapered downwardly and outwardly from the pedestal and with inner ends of the ribs having a height corresponding to the height of the pedestal to thereby provide lateral bracing and confinement to the pedestal;
a compacted backfilling material placed over and around the foundation to substantially bury the foundation and restore grade such that the pedestal top protrudes above grade and is adapted to support a base of a wind tower pylon near grade elevation; and
a ground support system connected to the foundation and extending into the ground below the foundation.