Patent ID: 8695297

Claim:
A foundation ( 11 ; 111 ) for a wind turbine tower configured to support and firmly constrain the wind turbine tower, made of steel or concrete, the foundation comprising: a plurality of prefabricated structural elements ( 13 , 20 ; 140 , 141 , 150 , 151 , 160 , 161 ), wherein: each of said prefabricated structural elements ( 13 , 20 ; 140 , 141 , 150 , 151 , 160 , 161 ) is modular, made of reinforced concrete, and is provided with a horizontal portion and indentations on lateral surfaces thereof, the structural elements are coupled together horizontally with the lateral surfaces of said prefabricated structural elements mating with one another, each of said horizontal portions of the prefabricated structural elements ( 13 , 20 ; 140 , 141 , 150 , 151 , 160 , 161 ) is provided with horizontal through-holes ( 17 , 18 , 21 ) inside which are arranged a series of post-tension cables ( 12 ) so as to fixedly join the elements of said foundation, and at least two ( 13 , 150 , 151 ) of said prefabricated structural elements ( 13 , 20 ; 140 , 141 , 150 , 151 , 160 , 161 ) are provided with longitudinal ribs ( 14 ) extending vertically from the horizontal portions of said at least two ( 13 , 150 , 151 ) prefabricated structural elements, said longitudinal ribs being monolithic with said horizontal portions; and a plurality of fixing blocks ( 35 ) disposed against the rib of the at least two prefabricated structural elements, said fixing blocks locking ends of said post-tension cables into position.