Structure for supporting marine installations and procedure for the execution thereof

A structure (2) for supporting a wind turbine tower (1) provided with a housing (7) for fitting therein a foot of the wind turbine tower (1), a main axis (F) being defined on the structure (2) which coincides with the main axis of the wind turbine tower (1) when the wind turbine tower is fitted in the housing (7), characterised in that the structure (2) comprises a body with a constant cross-section along the direction of the main axis (F) in which the following are defined:

• an internal wall (8) that defines the housing (7) for fitting therein the foot of the wind turbine tower (1);
• an external wall (9) that defines an outer perimeter of the body;
• an intermediate wall (10) arranged between the internal wall (8) and the external wall (9);
• the internal wall (8) and the intermediate wall (10) being joined by internal radial ribs (11) perpendicular to the internal wall (8), a plane of the internal wall (8) passing through the main axis (F), such that at the intermediate wall (10) first joining nodes (12) are defined between the intermediate wall (10) and radial ribs (11);
• the intermediate wall (10) and the external wall (9) being joined by reticular ribs (14 and 15), the cross-section of the reticular ribs (14 and 15) according to a plane perpendicular to the main axis (F) is a reticular structure (13), such that first reticular ribs (14) extend from the first joining nodes (12) perpendicularly to the external wall (9), and second reticular ribs (15) extend obliquely with respect to the first reticular ribs (14) from first joining nodes (12) to the external wall (9), second joining nodes (16) being defined on the external wall (9) where the external wall (9) and pairs of second reticular ribs (15) converge;
• wherein the walls and ribs are made of concrete;
• the housing being a housing for fitting therein the foot of the tower by inserting grout between the foot of wind turbine the tower and the housing.