PREFABRICATED CONCRETE SURFACE FOUNDATION SYSTEM FOR PHOTOVOLTAIC AND THERMOSOLAR PLANTS AND METHOD FOR THE IMPLEMENTATION THEREOF

Abstract

A foundation system for the implementation of thermosolar and photovoltaic plants that comprises a component (1) made from reinforced or prestressed prefabricated concrete constituted by a lower slab (2), a longitudinal central rib (3) in the top part and comprising a pillar (4) that emerges from the top part of the central rib. A method for implementing said foundation that comprises the phases: prefabrication (13) of a panel (1) of reinforced or prestressed concrete, the laying-out (14) of a bed of sand (12) over a surface, placing (15) the component (1) on said bed of sand (12), filling (16) with granular material (11) over the lower slab (2) of the panel (1) up to the upper reference mark on the pillar (4), placing (17) a supporting structure (9) inside the pillar (4), wedging (18) of the supporting structure, and filling (19) of the existing hollow using mortar.

Claims

1. A foundation system for the implementation of thermosolar and photovoltaic plants formed by a component made from reinforced or prestressed prefabricated concrete constituted by a lower slab with a longitudinal central rib from which a concrete pillar emerges from the top part thereof.

2. The foundation system for the implementation of thermosolar and photovoltaic plants according to claim 1, wherein the cross section of the concrete pillar is hollow.

3. The foundation system for the implementation of thermosolar and photovoltaic plants according to claim 1, wherein the inner cross section of the hollow pillar varies along the height thereof from larger to smaller or smaller to larger in order to create a widening or narrowing inside the pillar.

4. The foundation system for the implementation of thermosolar and photovoltaic plants according to claim 1, wherein longitudinal ribs, parallel to the central rib, emerge from the top part of the longitudinal ends of the lower slab.

5. The foundation system for the implementation of thermosolar and photovoltaic plants according to claim 1, wherein the lower surface of the prefabricated element has a rough finish.

6. The foundation system for the implementation of thermosolar and photovoltaic plants according to claim 1, wherein the hollow concrete pillar has two holes located on opposite faces through which a bar is inserted to be able to position the support structure that is housed inside the hollow pillar, subsequently filling the existing hollow with mortar.

7. The foundation system for the implementation of thermosolar and photovoltaic plants according to claim 1, wherein the concrete pillar has a solid cross section.

8. The foundation system for the implementation of thermosolar and photovoltaic plants according to claim 7, wherein the concrete pillar has metal plates or fasteners incorporated to facilitate the mounting of the support structure.

9. The foundation system for the implementation of thermosolar and photovoltaic plants according to claim 1, wherein the lower slab of the prefabricated panel has perforations to check the correct contact between the panel and the ground.

10. The foundation system for the implementation of thermosolar and photovoltaic plants according to claim 1, wherein the lower slab and the central rib are filled with granular material without exceeding the height of the concrete pillar.

11. The foundation method for the implementation of thermosolar and photovoltaic plants comprising the steps of: prefabricating a prefabricated component made from reinforced or prestressed concrete, laying-out of a bed of sand over an excavation base or directly over the surface, placing a prefabricated component on the bed of sand, filling with granular material over the lower slab of the prefabricated component up to a maximum of the upper reference mark of the concrete pillar, placing the previously perforated support structure inside the hollow pillar, fixing the height thereof by means of a bar or bolt that is inserted through the holes of the opposite faces of the concrete pillar, wedging the support structure against the inner walls of the concrete pillar and subsequent filling of the existing hole with mortar.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0044] To complete the description provided herein, and for the purpose of helping to make the characteristics thereof more readily understandable, the present specification is accompanied by a set of figures, which, by way of illustration and not limitation, represent the following:

[0045] FIG. 1 shows a perspective of the prefabricated component with a hollow pillar that forms part of the foundation system of the present invention.

[0046] FIG. 2 shows a cross section of the prefabricated component with a hollow pillar that forms part of the foundation system of the present invention.

[0047] FIG. 3 shows a cross section of the foundation system in the assembly thereof, object of the present invention.

[0048] FIG. 4 shows a perspective of an example of the prefabricated component with a solid pillar.

[0049] FIG. 5 shows the narrowing inside the hollow pillar, which enables the tension and compression loads transmitted by the support structure to be absorbed.

PREFERRED EMBODIMENT OF THE INVENTION

[0050] FIG. 3 shows a perspective of the system in the assembly thereof, formed by a prefabricated component (1) of reinforced or prestressed concrete constituted by a lower slab (2) from which a longitudinal central rib (3) emerges from the top part thereof and a hollow (4) and a pillar with a hollow cross section thereon.

[0051] This prefabricated concrete component, which is already installed in its definitive location, is filled with granular material (11) in order to ballast and increase the weight of the assembly in order to obtain greater stability when turning and sliding. The material itself extracted from the excavation may serve for this purpose. This filling never exceeds the maximum height of the pillar (4) so that the support structure (8) never enters into contact with the ground in order to not compromise the structural durability thereof.

[0052] The support structure is housed inside the hollow pillar and is positioned at the arranged height by means of a through bar (7) through holes (6) made in the pillar (4) and the support structure (8). The definitive fastening of the support structure to the pillar is resolved by subsequently filling the existing hollow with mortar (9).

[0053] FIG. 2 shows a cross section of the prefabricated concrete component (1) where a narrowing (5) of the inner hollow of the concrete pillar may be seen, achieving in this way a perfect setting between the concrete pillar (4) and the filling mortar (9) in relation to axial tension and/or compression loads of the support structure, preventing sliding between both bodies.

[0054] In order to increase the friction coefficient between the prefabricated component and the ground, it may have a rough finish on the lower part thereof.

[0055] Likewise, the lower slab of the prefabricated component may have perforations (6) to check the correct contact between the panel and the ground.

[0056] FIG. 4 shows a perspective of the concrete component in the case that the pillar has a solid cross section. In this case, the support structure is fastened on the head of the pillar (4), metal plates (10) or fasteners being incorporated to facilitate the mounting of the support structure (8).

[0057] The method for implementing this foundation comprises the following stages: [0058] prefabricating a prefabricated component (1) made from reinforced or prestressed concrete. [0059] laying-out of a bed of sand over an excavation base or directly over the surface. [0060] placing a prefabricated component on the bed of sand (12). [0061] filling with granular material (11) over the lower slab (2) of the prefabricated component up to a maximum of the upper reference mark of the concrete pillar (4). [0062] placing the previously perforated support structure (8) inside the hollow pillar, fixing the height thereof by means of a bar (7) or bolt that is inserted through the holes (6) of the opposite faces of the concrete pillar. [0063] wedging the support structure against the inner walls of the concrete pillar and subsequent filling of the existing hole with mortar (9).