WO2010034717A1

WO2010034717A1 - Construction member for building a retaining wall having a sound protection function

Info

Publication number: WO2010034717A1
Application number: PCT/EP2009/062268
Authority: WO
Inventors: Dominique Rossi
Original assignee: Dominique Rossi
Priority date: 2008-09-25
Filing date: 2009-09-22
Publication date: 2010-04-01
Also published as: MA32653B1; CA2738088C; CA2738088A1; FR2936261B1; MY152333A; EP2329080A1; FR2936261A1; EP2329080B1

Abstract

The invention relates to a construction member (1) having an upper surface (4) and a lower surface intended to engage when stacked with at least one similar construction member (1), and two opposite side walls (2) connected together at the ends thereof by a linking partition (3) of any shape, characterised in that each linking partition (3) includes, on the outer surface thereof and on the entire height thereof, protrusions (6) arranged in the height direction of the wall. The invention also relates to a retaining wall having a sound protection function and made of the construction members (1) of the invention. Said construction members can be used for building property fencing walls, for cladding the façade of a building, or for making a sound barrier along a road.

Description

"CONSTRUCTION ELEMENT FOR THE CONSTRUCTION OF A SUPPORT WALL HAVING PHONIC PROTECTION FUNCTION"

The present invention relates to a construction element, in particular concrete having a sound protection function.

The invention also relates to a retaining wall and sound protection made by means of building elements according to the invention.

This wall can be used to create a retaining wall, a property fence wall, to dress the facade of a building or to make a sound screen along a road.

Acoustic or acoustic protection screens known for efficient absorption are made of wood fiber panels with a high cost and a reduced service life.

Also known for this application, panels made of metal plates pierced with holes in which are housed insulating materials.

The service life of these materials exposed to the weather is also relatively low.

In addition, currently with the known devices, when there is need for a retaining wall and sound protection, it is necessary to use the materials necessary for the manufacture of the retaining wall and materials for protection sound. This multitude of materials increases the cost price and the time of construction in a very important way.

Retaining wall construction elements described in EP-B1-0 080 537 are known on behalf of the present applicant. These elements do not have an effective sound protection function.

The object of the present invention is to overcome the disadvantages of currently known acoustic protections and to improve the acoustic performance of walls formed of building elements.

The invention thus aims at a construction element, in particular of concrete, comprising an upper face and a lower face intended to cooperate in superposition with at least one similar element of construction and comprising two opposite side walls interconnected at their ends by a wall link, of any shape, the outer surface is provided with projections.

The presence of the projections on the outside of the connecting walls significantly improves the acoustic performance of the building elements, especially in concrete.

In addition, the building element comprises between the side walls several inner walls delimiting spaces of different size and shape.

The inner walls greatly improve the noise-reducing efficiency of the building element by contributing in particular to the return of acoustic waves, especially when the spaces are filled with absorbing materials and or returning acoustic waves.

According to the invention, the building elements are intended to form a retaining wall by superposition on several levels of height. In addition, the invention makes it possible to use a single type of material to manufacture a retaining wall having a very good phonic protection efficiency. The construction time is reduced and the cost of materials is also reduced.

The connecting walls of the building elements constitute the outer surface of the retaining wall. According to a preferred embodiment, the construction elements are arranged so that a portion of their upper face is not covered by the building elements of the upper height level and creating, between the building elements, cavities.

Indeed, the projections result in directing the phonic waves to the cavities formed by the assembly of the building elements. The cavities are preferably filled with filling materials having a good absorption efficiency of the phonic waves. Friable materials such as earth or sand may be used.

According to this embodiment, the phonic waves are trapped by the cavities. The building elements according to the invention are advantageously assembled to form a retaining wall, dry, that is to say without the need for adding binders, increasing the ease of construction of the wall.

Other objects and advantages will become apparent from the following description of a preferred embodiment of the invention which is not however limiting. The present invention relates to a construction element for cooperating in superposition with at least one similar building element to form a retaining wall comprising an upper face, a lower face and two opposite side walls extending in a main direction forming the most length of said construction element and interconnected at least at one end by a connecting wall of any shape, characterized in that at least one connecting wall is provided on its outer surface with projections arranged to disperse the acoustic waves reaching the building element. According to preferred embodiments of the invention, the construction element is such that: the projections extend substantially in the direction of the height of the connecting wall,

the projections are formed over substantially the entire height of the connecting wall,

the connecting wall is of rounded shape, the projections are of rounded shape,

the element comprises between the lateral walls a plurality of inner walls delimiting spaces of different sizes and shapes,

- The element comprises notches located on the lower face and adapted to cooperate with the spaces of a similar building element located below said building element and the spaces being adapted to cooperate with the notches of a similar building element located above said construction element,

- the inner walls delimit with the connecting walls, a space intended to be filled with filling materials, the element comprises a rupture zone intended to facilitate the separation of the construction element in its length into two substantially symmetrical modules,

- The spaces form through holes through the building element in the direction of the height.

The present invention also relates to a wall comprising a plurality of building elements as previously described over several height levels.

According to preferred variants of the invention the wall is such that: - the building elements are superimposed so that the upper faces of each building element are at least partly not covered by the building elements of the higher height level.

the element comprises at least one cavity between the different building elements. - The projections are arranged to direct at least a portion of the acoustic waves in the cavity to trap them.

The accompanying drawings are given by way of example and are not limiting of the invention. They represent only one embodiment of the invention and will make it easy to understand. Figure 1 is a perspective side view of a building element according to the invention.

FIG. 2 is a perspective front view of a portion of the construction element illustrated in FIG.

Figure 3: top view of a portion of the construction element illustrated in Figure 1.

Figure 4: top view of a module of the construction element illustrated in Figure 1

Figure 5 is a perspective view of an embodiment of a retaining wall according to the invention. Figure 6 is a perspective view of a second embodiment of a retaining wall according to the invention.

Figure 7: perspective view of an embodiment of a retaining wall according to the invention from modules illustrated in Figure 4.

Figure 8: schematic view of the top of a connecting wall provided with projections. Figure 9: diagram showing the shape and distribution of the projections. Each building element 1 comprises two opposite side walls 2 extending in a main direction forming the greatest length of said building element. The side walls are interconnected at at least one of their ends by at least one connecting wall 3 of any shape. Main direction means the direction perpendicular to the height of the side walls 2. The length of the side walls in the main direction is preferably the maximum dimension of the construction element.

The construction element 1 comprises an upper face 4 and a lower face 5 intended to cooperate in superposition with at least one respective substantially similar construction element 1.

Typically, the outer surface of the connecting walls 3 is provided with projections 6.

The presence of projections 6 at the connecting walls 3 improves the acoustic performance of the building element 1, by dispersing the acoustic waves arriving at the building element 1.

Advantageously, the projections 6 extend substantially in the direction of the height of the connecting wall 3. The projections 6 are preferably arranged over substantially the entire height of the connecting wall 3.

Advantageously, the connecting wall 3 is of rounded shape. Preferably, towards the outside of the construction element so as to be convex. According to variants, the connecting wall 3 may be of oval shape, of polygonal shape, in the form of an outwardly facing tip of the construction element 1 or others.

The projections 6 are preferably of rounded shape. Other semicircular shapes, polygon or tip in particular, can also be used alone or in combination.

For example, as shown in Figure 9, a projection 6 of rounded shape has a width of two centimeters to two centimeters thick.

Advantageously, the distance between the base of two successive protrusions is six centimeters.

The connecting wall 3 is intended to be turned towards the outside of the construction formed by the construction element 1.

The protrusions 6 also have a reinforcing role for the connecting wall 3. Indeed, the connecting wall 3 preferably being of prominent shape, it is subjected to bad weather and shocks. The projections 6 reinforce the connecting wall 3 in particular by absorbing shocks and / or compressions. The building element 1 is provided between the side walls 2 of several inner walls 7 delimiting spaces 8, 9 of different sizes and shapes. The inner walls 7 also have a reinforcing role of the construction element 1. Many configurations of the inner walls 7 can be envisaged. The upper 4 and lower 5 faces of the construction element 1 are hollow so that the construction element has the form of a bottomless tank. Indeed, the spaces 8, 9 form through holes through the building element 1 according to its height. The construction element 1 is advantageously made of concrete, allowing a very long life. According to a preferred variant, to facilitate the assembly of the construction elements 1, the construction element 1 comprises notches on the lower face 5, in particular at the lower edges of the inner walls 7.

A construction element 1 is intended to cooperate with at least one similar building element 1 at the upper face of the latter by the notches which are able to cooperate with the spaces 8, 9 of the similar building element 1 directly below said construction element 1. Similarly, the spaces 8, 9 of a building element 1 are able to cooperate with the notches of a similar building element 1 located directly above said building element 1. plurality of spaces 8, 9 and notches allows various arrangements of the building elements (1) as shown in Figures 5, 6 and 7.

Other variants allowing rapid assembly of the construction elements 1 can be envisaged. In particular by providing cavities, distinct spaces 8, 9, formed at the upper edges of the inner walls 7 or side walls 2.

According to another variant, the construction elements 1 are assembled by a binder like cement.

The invention also relates to a retaining wall comprising a plurality of building elements 1 on several levels of height. The connecting walls 3 constitute the outer surface of the retaining wall.

The retaining wall is of the type intended to be trimmed for example with vegetation.

The building elements 1 are preferably mounted dry by interlocking the elements in each other, and by superimposed on each other. The superposition of two contiguous elements has an offset in a horizontal plane so as to avoid any integral recovery of an element by an element disposed on the upper level of height.

Thus, the building elements 1 are arranged to form the retaining wall so that at least part of the upper face 4 of each building element 1 is not covered by a building element 1 of the higher height level. This arrangement allows the formation of cavities 12 leaving visible at least part of the space 9.

These cavities 12 are intended to promote the penetration and absorption in the cavities-forming spaces 9 of the acoustic waves returned by the projections 6 located on the connecting walls 3.

At least part of the waves arriving on the building elements 1, is deflected by the projections 6 so as to be directed towards the cavities 12. The waves penetrate into the retaining wall and are absorbed in the spaces 9 forming cavities 12.

It is advantageous to provide that the spaces 9 are lined with soil and vegetation so that the wave arriving at the level of the cavities 12 is dissipated particularly efficiently in the earth contained in the space 9.

Among various possibilities, the spaces 8 are in turn filled with gravel, sand or other friable materials.

Thus, the acoustic waves do not pass through the building element. The upper and lower faces 4 and 5 of the building elements 1 being hollow, when the building elements 1 are superimposed, the spaces 8, 9 of a building element 1 communicate with the spaces 8, 9 of the building elements 1 of the levels upper and lower height. Thus, if acoustic waves enter a cavity 12 and emerge from the same cavity 12, they will be guided for the most part to another cavity of the higher or lower height level.

The network of cavities 12 formed by the cooperation of building elements 1 thus constitutes a particularly effective means for trapping and absorbing incident acoustic waves. The soil and gravel placed in the spaces 8, 9 and allow to increase the maintenance of the structure of the retaining wall.

The building element 1 advantageously comprises in its median part at least one rupture zone 10. This rupture zone 10 makes it possible to separate the construction element 1 in its length into two symmetrical modules 11 represented in FIG. The rupture zone 10 is formed of a slot disposed in the height of the side walls 2.

This rupture zone 10 allows the construction element 1 to be flexible.

The modules 1 1 are adapted to allow the realization of walls with cavities and all the properties described above about the walls formed by the building elements 1.

REFERENCES

1. Building element

2. Side wall 3. Connecting wall

4. Upper face

5. Bottom face

6. Saillie

7. Inner walls 8. Spaces

9. Revegetation spaces

10. Break zone

1 1. Module

12. Cavity

Claims

1. Construction element (1) intended to cooperate in superposition with at least one similar construction element (1) to form a retaining wall comprising an upper face (4), a lower face (5) and two lateral walls (2). ) extending in a main direction forming the greatest length of said building element (1) and interconnected at at least one of their ends by a connecting wall (3) of any shape characterized by the fact that at least one connecting wall (3) is provided on its outer surface with projections (6) arranged to disperse the acoustic waves coming to the building element (1) and comprising between the side walls (2) a plurality of inner walls (7) delimiting spaces (8, 9) of different sizes and shapes.

2. Construction element (1) according to claim 1 wherein the projections (6) extend substantially in the direction of the height of the connecting wall (3).

3. Construction element according to claim 1 or 2 wherein the projections (6) are formed over substantially the entire height of the connecting wall (3).

4. Construction element (1) according to any one of claims 1 to 3 wherein the connecting wall (3) is of rounded shape.

5. Construction element (1) according to any one of claims 1 to 4 wherein the projections (6) are of rounded shape.

6. Construction element (1) according to any one of claims 1 to 5 comprising notches located on the lower face (5) and adapted to cooperate with the spaces (8, 9) of a construction element (1). similar located below said building element (1) and the spaces (8, 9) being adapted to cooperate with the notches of a similar building element (1) located above said building element (1).

7. Building element (1) according to any one of claims 1 to 6 wherein the inner walls (7) define with the connecting walls (3), a space (9) to be filled with filling materials.

8. Construction element (1) according to any one of the preceding claims comprising a rupture zone (10) intended to facilitate the separation of the construction element (1) in its length into two modules (1 1, 1 1) substantially symmetrical.

9. Building element (1) according to any one of claims 1 to 8 wherein the spaces (8, 9) form through holes through the building element (1) in the direction of the height.

10. Wall comprising a plurality of building elements (1) according to one of claims 1 to 9 on several levels of height.

A wall according to claim 10, wherein the building elements (1) are superimposed so that the upper faces (4) of each building element (1) are at least partly uncovered by the building elements (1). ) of the higher height level.

12. Wall according to claim 10 or 1 1 comprising at least one cavity (12) between the various building elements (1).

13. The wall of claim 12 wherein the projections (6) are arranged to direct at least a portion of the acoustic waves in the cavity (12) to trap them.