ITBZ20130019A1 - DRAINING AND FILTERING SUPPORT STRUCTURE FOR FLOORING. - Google Patents

Description

"Draining and filtering support structure for flooringâ €

The invention relates to a draining and filtering support structure for flooring and a method for its realization.

For the construction of parking floors, gravel or other similar materials are often used to create a drainage surface. These surfaces made in this way do not allow to control the direction of the outflow. Furthermore, the problem arises of a material that is not bound to the ground. To ensure resistance to erosion, so-called geocells are known. These cells form a bottom in which material such as earth can be inserted and are connected to each other in such a way as to allow the circulation of water with a block of the material inserted in the geocells.

The problem that arises is that the water in a parking lot, for example, can be polluted and, moreover, the circulation of water cannot be regulated.

For this reason, the car parks are sealed on the surface with asphalt.

The object of the present invention is to provide a support structure for draining and filtering flooring and a method for laying said structure.

The object is achieved by means of a structure with the characteristics according to the characterizing part of claim 1.

The support structure consists of a series of cells, each of said cells having at least one opening in the same direction and said cells being able to form a walkable surface placed on the side of the cell openings, said cells being filled with material and being connected between of them through passages positioned decreasing in height on the walls of the cells in the direction of at least a predetermined point for the outflow of the fluid and each cell having at least one thickness of filtering material.

Cells consist of at least two walls. To facilitate the realization of the sheet, several cells can have a plastic leaf which is their wall.

Each cell has at least one passage for the outflow of the liquid, in particular water. This water arrives from the treadable surface, goes into the cell and flows through the passages to the predetermined point or points. Each cell has at least one filter layer. The water is filtered through the outflow. A filter can be provided at the predetermined exit point from the structure according to the invention. In this way the water flow can be regulated.

The cell material can be PVC.

Further characteristics and details result from the claims and from the following description of preferred embodiments represented in the attached drawing in which

Figure 1 shows a perspective view of an unfilled structure according to the invention, e

Figure 2 shows 3 half cells in perspective view with a walkable layer.

The structure according to the invention 1, has a series of cells 6. Each cell has at least two walls 2a, 2b and an opening 7. Through this opening 7 the cell 6 can be filled with material 5 that can be walked on, for example gravel, gravel, stones and similar. The union of the cells 6 presses a high resistance against possible displacements of the structure. Each cell has at least one passage 4 for the water outflow. These passages 4 are arranged in such a way as to be able to regulate the flow rate and speed of the flow and are also arranged in such a way as to bring the flow to a predetermined point or a predetermined area of outflow of the water outside the structure 1 according to the invention. Preferably, a layer of draining material is arranged on the bottom of the cells 3. Furthermore, to better regulate the flow, the passages 4 are arranged at different levels in a preferred way to create a flow slope towards the zone or at least one predetermined point of outflow of the liquid. A filter element may be provided in the area or at least one outlet point.

Particularly advantageous for the structure according to the invention are the ovoid honeycomb-shaped cells. These cells give a particularly advantageous support to the treadable surface 10 and are also particularly advantageous for the resistance against the displacement of the structure.

The walkable surface 10 can be made for example from cubes or even from a turf or in a preferred embodiment from a layer of resin bonded gravel which allows water to pass through this walkable layer.

To make the structure according to the invention, the method described below has proved to be particularly advantageous.

The method for manufacturing the support structure 1 according to the claim comprises the following steps:

a) laying of the sheet formed by the cells,

b) orientation of the passages towards at least one predetermined flow point.

c) filling each cell with material,

d) laying a walkable layer on top of the filling material.

When laying the cells, the natural slope of the ground can also be envisaged in order to facilitate the flow of water. At least one outflow point can be foreseen near a canal or similar such as a river in order to allow the water to flow out without creating damage.

Cell fill material can be gravel or other water-filtering materials. In this way residues that must not enter the water circulation or the aquifer are filtered.

In a preferred embodiment, the filling material 5 is mixed before filling with a binder, preferably a resin.

This resin binds the filling material, but still allows the water to flow out.

A filter element can be provided in at least one outlet point and / or area. Having a zone or a point or a limited number of exit points, active filter elements can also be provided. By having only one filter or only a limited number of active filters, these can be easily overridden and changed.

The structure according to the invention can be fixed to the ground for example by means of anchors so as to avoid any displacement.

List of reference numbers

1 Support structure

2nd wall

2b wall

3 bottom

4 step

5 filling material 7 opening

10 walkable surface

Claims (8)

Claims 1. Support structure (1) consisting of a series of cells, each of said cells having at least one opening (7) in the same direction, characterized in that said cells are suitable for forming a walkable surface (10) placed on the side of the openings (7) of the cells, said cells being filled with material (5) and being connected to each other through passages (4) positioned decreasing in height on the walls (2a, 2b) of the cells in the direction of at least one predetermined point for the outflow of the fluid and each cell having at least one thickness of filter material. 2. Support structure according to claim 1, characterized in that said cells have an ovoid shape. Support structure according to one of the preceding claims, characterized in that a layer of gravel acting as a reservoir is arranged inside said cells. Support structure according to one of the preceding claims, characterized in that a layer in the cell is composed of drainage material. 5. Support structure according to one of the preceding claims, characterized in that said cells are made of PVC. Support structure according to one of the preceding claims, characterized in that the filling material is bonded by means of a resin. 7. Method for manufacturing a support structure according to claim 1, characterized in that it comprises the following steps: a) laying of the sheet formed by the cells, b) orientation of the passages towards at least one predetermined flow point. c) filling each cell with material, d) laying a walkable layer on top of the filling material. 8) Method according to claim 7, characterized in that before step c) the filling material is mixed with a binder.