ES2670605T3 - Reinforced stabilization band for reinforced dam structures with functionalized coating - Google Patents

Abstract

Reinforced stabilization band (1) for reinforced dike structures, comprising long reinforcing fibers (12) and a longitudinal cladding (11) that surrounds or enclosing the long reinforcing fibers (12), the cladding (11) being al less partially of a functionalized polymer material (111) comprising a functionalized polyolefin.

Description

image 1

DESCRIPTION

Reinforced stabilization band for reinforced dam structures with functionalized coating

5 Technical sector

The present invention relates to the technical field of land reinforcement for the construction of retaining walls. In particular, it refers to a stabilization band, also called geobanda, reinforced and that can be used for structures in reinforced soil or reinforced earth for the construction of retaining walls.

State of the art

A reinforced dike structure comprises a dike, a cladding and reinforcements connected or not connected to the cladding.

The dike is formed by a mixture or a set that can comprise at least one material between sand, gravel, fine earth, crushed rocks, recycled materials such as materials obtained from the demolition of buildings or civil engineering structures, industrial waste , binders such as lime or cement.

The coating ensures the aesthetics and stability of the structure with respect to erosion by resorting to the front face of the retaining wall, that is, the visible face. Most often it is made from prefabricated elements and juxtaposed concrete, in the form of slabs or blocks. It can also consist of wire mesh panels or gabions made of braided metal wires.

25 Reinforcements can be made with various materials, such as metal (and more particularly zero galvanized) and synthetic materials. They are placed on the dike with a density that depends on the limitations that can be exerted on the structure, the ground pushing forces being absorbed by the friction between the dike and the reinforcements.

In the vast majority of cases, reinforcements are provided in the form of stabilization bands that are approximately 3 m to 10 m in length, although shorter or longer bands can be used. The length of the bands is generally between 4 cm and 10 cm, although it is possible to use bands with a length that varies up to 10 cm or 25 cm, even longer. The thickness varies, for example, from about 1 mm to several centimeters and is generally between 1 mm and 6 mm. These stabilization bands transmit the

35 forces to the dike thus allowing to distribute the efforts.

In particular, it is necessary to transmit the stresses between a stabilization band and the dam in which it is placed. In addition, it is preferred that the stabilization band is capable of transmitting stresses over its entire length.

A solution known to the person skilled in the art is to use stabilization bands comprising a longitudinal coating that interacts with the dike by treatment. The stabilization bands also comprise a reinforcement composed of a set of longitudinally placed fibers, parallel to each other and submerged inside the lining in its central part in order to reinforce the tensile existence. Generally the coating is polyethylene, and polyester fibers. When this is necessary, a solution

45 known to the person skilled in the art to increase the treatment resistance between the bands and the dike is to provide the longitudinal lining with a central part comprising the reinforcing fibers and lateral parts that make it discouraged in order to interact better with the grains that constitute the dike.

Polyester fibers have the disadvantage of being sensitive to the alkalinity of the environment and can be degraded when the stabilization bands that include them are used for example in basic soils. This is for example the case of fine earth treated with lime or hydraulic binders that allow to improve its handling and / or its stability.

55 Therefore, it is interesting to be able to use other types of fibers that are not very sensitive to the nature of the dike; for example polyvinyl alcohol fibers.

The inventors have sought the realization of stabilization bands comprising a polyethylene coating and a reinforcement composed of a set of polyvinyl alcohol fibers.

In the course of certain adhesion tests between these stabilization bands and the dike, under strong insulations of the dike, it arises that the fibers slide in the lining at the point where the band should retain its integrity and that the band be conducted to its sliding with respect to the dikes that surround it. It was concluded that the absence of chemical bond between the polyethylene coating and the fibers of

65 polyvinyl alcohol led to insufficient adhesion strength between the fibers and the coating.

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Object of the invention

Therefore, the present invention seeks to solve the drawbacks of the interior technique described above. In particular, the present invention seeks to allow the realization of stabilization bands that do not

5 are sensitive to their environment (and that they can preferably be used for different types of dike) while presenting high tensile strength and allowing the measurement of their mechanical properties reliably.

For this, the present invention proposes a reinforced stabilization band for reinforced dike structures, comprising long reinforcing fibers and a longitudinal coating that surrounds or encloses the long reinforcing fibers, the coating being at least partially of a polymer material functionalized comprising a functionalized polyolefin.

The polyolefin functionalization allows to provide the functionalized polymer material of the coating

15 functional groups with which the material of the reinforcing fibers can react thereby creating links between the reinforcing fibers and the coating that prevent their disconnection increasing the bond strength between the reinforcing fibers and the coating.

Below are other optional and non-limiting features.

The functionalized polyolefin advantageously comprises from 0.01% to 45% functionalization.

The functionalized polymer material may comprise a mixture of non-functionalized polymer and functionalized polyolefin. Preferably, the non-functionalized polymer is a non-functionalized polyolefin. Preferably, the

The non-functionalized polyolefin is a non-functionalized polyethylene, always preferably a non-functionalized linear low density polyethylene. The proportion of functionalized polyolefin mass: non-functionalized polymer is between 1: 9 and 10: 0.

The functionalized polymer material advantageously presents a functionalization gradient with a maximum in contact with the reinforcing fibers and which decreases as it moves away from the reinforcing fibers.

In a particular mode of the invention, the functionalized polyolefin is a polyololefin substituted by a chemical element having a functional group chosen from the mono or di-carboxylic acid anhydrides or on which the chemical element has been grafted. Preferably, the chemical element is a maleic anhydride group, anhydride

35 phthalic or an acrylic acid.

The coating may further comprise a non-functionalized area that surrounds or encloses the functionalized polymer material. This non-functionalized zone consists of a non-functionalized polymer, for example the same non-functionalized polymer of the mixture that forms the functionalized polymer material, or another.

The reinforcing fibers are advantageously formed by a material chosen from polyvinyl alcohol, polyesters, silica glass, linear or aromatic polyamides and metals. The reinforcing fibers can be presented in the form of threads, braided threads, or ropes; These threads, braided threads or ropes may be spun or braided.

The coating may further comprise at least one longitudinal edge free of reinforcing fibers and having notches.

The stabilization band can have two longitudinal ends joined to each other thus taking the form of a loop.

The present invention also proposes a stabilization layer made at least in part with stabilization bands such as those described above. This stabilization layer can be carried out in the form of a georegrid formed by a warp and a weft composed of stabilization bands (1), the

55 warp and weft being woven or superimposed on each other. The warp and weft stabilization bands are joined at certain intersection points by heat welding or adhesive bonding.

The present invention even proposes a reinforced dike structure comprising:

- dike; Y

- at least one stabilization band as described above, and / or at least one stabilization layer that has also been described above, said at least one stabilization band and / or said at least one stabilization layer being placed slightly horizontal on one or several levels in the dike.

65 This reinforced dam structure may further comprise a coating and connectors for connecting at least a part of the stabilization bands and / or stabilization layers for the coating. These connectors can also be formed by stabilization bands, in particular those with a loop shape.

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The present invention finally proposes a method of manufacturing a stabilization band as described above, said method comprising:

-

heating of the functionalized polymer material at least at the activation temperature of the functional group;

-

the forming of the functionalized polymer material around the reinforcing fibers in order to form the lining that surrounds or encloses the reinforcing fibers.

The method may further comprise stretching the reinforcing fibers, and the forming of the functionalized polymer material can be performed by extrusion of the functionalized polymer material around the reinforcing fibers.

The method may even include heating of the non-functionalized polymer and stretching of the reinforcing fibers; wherein the forming of the functionalized polymer material is carried out by coextrusion of the functionalized polymer material around the reinforcing fibers and of the non-functionalized polymer around the functionalized polymer material forming the non-functionalized area of the lining that surrounds or encloses the material of functionalized polymer.

Stretching of the reinforcing fibers is advantageously performed as the coating is extruded.

25 Description of the figures

Other objects, features and advantages will appear with the reading of the detailed description that follows in reference to the figures provided by way of illustration and not limitation, among which:

-

Figure 1 is a schematic illustration of a stabilization band according to the invention, in which the coating is entirely of functionalized polymer material;

-

Figure 2 is a schematic illustration of a stabilization band according to the invention, in which the coating comprises a non-functionalized area surrounding or enclosing the functionalized polymer material;

Figure 3 is a schematic illustration of a stabilization band according to the invention, in which the coating is formed entirely of functionalized polymer material and notched;

-

Figure 4 is a schematic illustration of a stabilization band according to the invention, in which the coating comprises a non-functionalized area surrounding or enclosing the functionalized polymer material and notching;

-

Figure 5 is a schematic illustration of a stabilization layer comprising a warp of stabilization bands and a weft of overlapping stabilization bands;

-

Figure 6 represents a schematic illustration of a stabilization layer comprising a warp of stabilization bands and a weave of woven stabilization bands, this type of configuration corresponds to the definition of a reinforcement georegrid;

Figure 7 represents a schematic illustration of a reinforced dike structure that can be made with stabilization bands of one of Figures 1 to 4, alternatively with layers of Figure 5 or 6;

-

Figure 8 represents a flow chart showing the different steps of the method of manufacturing a stabilization band according to the present invention;

-

Figure 9 is a schematic illustration of a cut-out stabilization band for measuring the bond strength between the reinforcing fibers and the lining.

Detailed description of the invention

Referring to Figures 1 to 4, a reinforced stabilization band for reinforced dam structure 55 according to the invention is described below.

This stabilization band 1 comprises long reinforcing fibers 12 and a surrounding longitudinal lining 11

or enclosing the long reinforcing fibers 12. The coating 11 is at least partially formed by a functionalized polymer material comprising a functionalized polyolefin (Po-f).

A polyolefin is a saturated, occasionally substituted aliphatic polymer, which is obtained from the polymerization of an olefin (also called alkene).

The functionalized polyolefin can be chosen from functionalized polyethylenes, functionalized polypropylenes, or 65 functionalized olefinic copolymers such as functionalized ethylene-vinyl acetate (EVA). Preferably, the functionalized polyethylenes and in particular the functionalized linear low density polyethylene will be chosen.

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In the context of the present disclosure it will be understood that the term "functionalization" refers to a modification of the polyolefin by replacing it with a chemical element comprising a functional group or unsaturation or by grafting the chemical element into the polyolefin. Modification of the polyolefin can also lead to the creation of unsaturation in the polyolefin chain. The functional group is with respect to

It is also capable of reacting with the material of the reinforcing fibers 12, by creating covalent bonds or hydrogen bonds with itself.

In particular, the functional group can be chosen from mono or di-carboxylic acid anhydrides.

For example, the chemical element that replaces a hydrogen atom in the polyolefin carbon chain can be: a maleic anhydride, phthalic anhydride or an acrylic acid group; the maleic anhydride group being generally the most used.

It is not necessary to prepare a significant number of functional groups in the Po-f. Indeed, in general, the

The functionalization of the Po-f is between 0.01% by mass and 45% by mass. Above 45% by mass of functionalization, no further reference will be made to polyolefin. The functionalization rate is advantageously between 0.01% by mass and 30% by mass, preferably between 0.01% by mass and 15% by mass, even preferably between 0.01% in more and 5% by mass, always preferably between 0.1% by mass and 2% by mass.

The functionalization rate of Po-f should be comprised as the ratio between the mass of functional groups that reacted with the polyolefin and the total mass of functionalized polyolefin Po-f. It can also be calculated for the mass increase between the initial non-functionalized polyolefin (Po-nf) and the functionalized polyolefin Po-f. For example, if 10 g of maleic anhydride have reacted with a polyolefin and that the mass

25 total of the Po-f is 100 g, then the functionalization rate is 10% by mass. The functionalized polymer material may comprise 100% by weight of Po-f or a mixture of Po-f and non-functionalized polymer. This non-functionalized polymer is a polymer compatible with the functionalized polyolefin, that is, its mixture is stable over time and that no phase separation is observed. It is said that they are totally miscible. The non-functionalized polymer is preferably chosen from the non-functionalized polyethylenes (PE-nf), non-functionalized polypropylene (PP-nf), olefinic copolymers such as ethylene-vinyl acetate (EVA-nf). The preferred non-functionalized polymer is linear low density polyethylene (PEBDL-nf).

Advantageously, the mass ratio of Po-f: non-functionalized polymer is between 1: 9 and 10: 0. The mass ratio of Po-f, preferably PEBDL-f: non-functionalized polymer, preferably PEBDL-nf,

35 may be between 1: 4 and 1: 1.

The functionalized polymer material 111 may have a functionalization gradient with a maximum in contact with the reinforcing fibers 12 and which decreases as it moves away from the reinforcing fibers 12. The gradient may be continuous or stepwise.

The coating 11 may also comprise a non-functionalized area 112 that surrounds or encloses the functionalized polymer material 111. Therefore, the cost of the coating 11 may decrease since in general, the non-functionalized polymer (or Po-nf) It has a lower cost than Po-f. The polymer of the non-functionalized zone may be the same as that of the mixture leading to the functionalized polymer material or

45 different, and is chosen from those mentioned above for mixing.

One or more channels 13 can be formed inside the lining 11, the reinforcing fibers 12 being stretched inside these channels 13. The increase in the number of channels 13 allows to increase the contact surface between the long reinforcing fibers 12 and the coating 11, and consequently the resistance of interaction between these two constituent elements. Preferably, the number of channels is between 5 and 20.

The reinforcing fibers 12 are formed by any material that makes it possible to reinforce the tensile strength of the stabilization band. Advantageously, they are prepared with material chosen from polyvinyl alcohol (PVAL), polyesters, silica glass, linear or aromatic polyamides (also called aramides) and metals, or

55 a mixture thereof. If two or more materials are used, the reinforcing fibers in one of the given materials can be grouped together, or the composition of the reinforcing fibers in each of the channels 13 different from that of another, but preferably, the Composition of the reinforcing fibers is the same in each of the channels 23.

Among the mentioned fibers, the PVAL fibers, are the ones that are preferred. Indeed, unlike polyesters, glass, linear polyamides, aramids and metals, these materials are not sensitive to the nature of the dike (and in particular to the pH of the earth that enters the dike composition).

The reinforcing fibers 12 are advantageously placed in the lining 11 in parallel to the length thereof, and 65 in parallel with each other. These can be unprocessed, that is, without spinning.

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The reinforcing fibers 12 can also be presented in the form of wires parallel to each other. A "thread" results from the spinning of the fibers. That is, all the fibers are oriented in the same direction and twist together. A yarn formed by fibers is more tensile resistant than the set of fibers simply placed next to each other, in fact, the yarn reinforces the mechanical properties of the fibers.

5 The reinforcing fibers 12 can also be presented in the form of twisted wires or ropes parallel to each other, as described in EP2171160. The spinning or twisting of several threads together provides a "twisted yarn." The spinning or braiding of several strands twisted together provides a "rope." Taking into account the fact that the braided thread and the rope result from the assembly of several threads, the appearance of its surface is also not smooth like that of the fibers or that of the threads. Consequently, the braided thread or the rope has a superficial relief, that is, its surface has depressions and protuberances. The functionalized polymer material that surrounds or encloses the reinforcing fibers 12 adheres to these depressions and protuberances thereby allowing to add a mechanical tensile strength that increases the strength of adhesion between the reinforcing fibers 12 and the lining 11.

The reinforcing fibers 12 may also be formed by a mixture comprising at least two elements chosen from unprocessed fibers, threads, braided threads and ropes.

The coating 11 may comprise at least one longitudinal edge 113 of high adhesion free of reinforcing fibers and having notches 114 (see Figures 3 and 4), as described in EP2247797. The notches 114 of this high adhesion longitudinal edge 113 have the function of rubbing against the dike of the reinforced dike structure to keep the stabilization band 1 in place.

In general, and as already defined above, the stabilization band 1 has a length of

25 approximately 3 m to 10 m, although longer or shorter stabilization bands 1 can also be provided. The length of the stabilization band 1 is between 4 cm and 6 cm, although it is possible to manufacture bands with larger lengths that vary up to 10 cm or even 25 cm. The thickness of the stabilization band 1 varies between 1 mm and several centimeters, more preferably between 1 mm and 6 mm.

The stabilization band 1 can have two longitudinal ends joined to each other that thereby acquire the shape of a loop. Such a loop in the stabilization band can be used as a connector to join the stabilization bands to the linings of the reinforced dam structure. Preferably, the perimeter of the loop is between 40 cm and 80 cm.

Several stabilization bands 1 can form at least a part of a stabilization layer 10, advantageously in the form of a georegrid formed by a warp comprising stabilization bands and a weft also comprising stabilization bands. The warp and weft are superimposed (figure 5) or woven (figure 6). In the case of the superimposed warp and weft, a part a set of the stabilization bands le of the warp is fixed to the stabilization bands 1t of the weft that cross them at intersections 101. In the case of the warp and the woven weft, this partial or total fixation of the warp stabilization bands to the weft stabilization bands 1t can be performed, but is not mandatory; in fact, the fabric allows the warp to be maintained with respect to the weft and vice versa. The stabilization bands le of the warp are preferably placed at 90 ° of the stabilization bands 1t of the weft, crossing them at a right angle. However, the invention is not limited to this orientation and

45 Any other orientation is possible with respect to the warp stabilization bands le with respect to the weft stabilization bands 1t, for example 60 ° and 45 °.

The fixing of the warp stabilization bands and of the weft stabilization bands 1t can be done by heat welding or adhesive bonding. Known welding methods for polyolefin coatings are hot air welding, mirror welding, hot spot welding, ultrasonic welding, infrared welding.

The stabilization band 1 described above is used in the construction of reinforced dam structures 2 (Figure 7). A reinforced dam structure 2 of this type comprises, in addition to the bands of

55 stabilization 1, dike 21. The stabilization bands 1 are placed horizontally in the dike on one or several levels. As a variant or in addition, these stabilization bands 1 can form a stabilization layer 10 placed horizontally in the dike on one or several levels.

The dike 21 generally comprises a mixture or set that can comprise at least one material chosen from sand, gravel, fine earth, crushed rocks, recycled materials such as materials obtained from the demolition of buildings or civil engineering structures, industrial waste , binders such as lime or cement.

Generally, a reinforced dike structure 2 of this type also comprises a liner 22 and 65 connectors 23 for connecting at least a part of the stabilization bands 1 to the liner 22. The liner 22 can be made from prefabricated elements 221 and juxtaposed. concrete, shaped

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slabs or blocks. It can also be formed by wire mesh panels or gabions made of braided metal wires.

The stabilization bands 1 can be used as such, that is, placed individually during the construction of the reinforced dike structure 2.

When the stabilization bands 1 are in the form of stabilization layers 10, a whole set of stabilization bands 1 is placed in an operation during the construction of the reinforced dike structure 2. The advantage is an increase in time for placement of the stabilization bands 1 with respect to the individual placement. Another advantage is the simplification of the placement since the distance between the stabilization bands 1 is previously defined during the manufacture of the stabilization layer 10.

The connectors 23 may be stabilization bands 1, in particular in the form of loops made by winding and mounting. In this case, the adhesion between the threads and the lining is essential to ensure the resistance of the

15 loop

Referring to Figure 8, a method of manufacturing a stabilization band is described below.

The method of manufacturing a stabilization band as described above comprises:

- The heating of the functionalized polymer material at least at the activation temperature of the functional group of the Po-f; Y

- the conformation of the functionalized polymer material around the reinforcing fibers to form the

coating surrounding or enclosing the reinforcing fibers thereby obtaining the stabilization band.

The activation temperature is the temperature at which the functional group is activated and depends on the nature of the chemical element that functionalizes the polyolefin. For example, the activation temperature for maleic anhydride is 180 ° C. Therefore, advantageously, the polymer material functionalized by the maleic anhydride is heated at approximately 180 ° C for several seconds in an extruder or mixer.

The method advantageously comprises stretching the reinforcing fibers following a stretching direction. The conformation of the functionalized polymer material is carried out by extrusion of the functionalized polymer material around the reinforcing fibers in the direction of the stretching direction.

This embodiment is advantageously used for a uniform coating, that is, it does not comprise non-functionalized areas.

As a variant, the conformation of the functionalized polymer material is carried out in order to form a functionalization gradient in the polymer material with a maximum in contact with the reinforcing fibers and which decreases as it moves away from the reinforcing fibers.

In addition, the method may comprise heating of non-functionalized polymer, preferably PE-nf, more preferably even PEBDL-nf. The conformation of the functionalized polymer material is carried out by

Coextrusion of the functionalized polymer material around the reinforcing fibers and the non-functionalized polymer around the functionalized polymer material to form the non-functionalized area of the lining that surrounds or encloses the functionalized polymer material.

Stretching of the reinforcing fibers can be performed as the coating is extruded, which allows an increase in time and an increase in space for the manufacture of the stabilization band.

Prior to the stretching of the reinforcing fibers, these may have been spun into threads. The threads may have been spun or braided into braided threads and the braided threads may have been spun or braided into ropes.

Alternatively, the reinforcing fibers have already been supplied in the form of threads, braided threads or ropes, optionally previously stretched. Optionally, the fibers supplied in the form of strands or twisted strands can be spun or braided to provide respectively stranded strands or ropes.

Test - measurement of the bond strength between the reinforcing fibers and the coating

The test presented below is performed on stabilization bands comprising a coating of a functionalized polymer material comprising a mixture of PEBDL-nf and PEBDL-f in the proportions presented in Table 1. The PEBDL- f has a calculated functionalization rate of

65 approximately 1% by mass with elements of maleic anhydride. An example of control is also performed for comparison. The coating of this control example comprises 100% PEBDL-nf.

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Table 1

Example 1

Example 2 Example 3 Example 4 Control

PEBDL-f mass ratio: PEBDL-nf

25:75 50:50 75:25 100: 0 0: 100

The stabilization bands 1 comprise a reinforcement of PVAL in the form of braided wires present inside the lining. PVAL reinforcement fibers are distributed in 5 channels 13 inside the lining

5 11 and in which the central channel 131 measures 7 mm in length and 2 mm in height. The shape and constitution of the stabilization bands are identical for all mass proportions of PEBDL-f: PEBDL-nf tested and for the control example.

A cut In is made on the opposite lateral edges of the stabilization band, leaving only the central channel 131 intact. 10 cm from the edge of the cut, a transverse incision is made through the central channel 131 in its entirety length, thereby sectioning the braided wires found in the central channel

131. Therefore, between the cut In and the incision In, the stabilization band 1 is left intact over 10 cm (see Figure 9).

Each stabilization band 1 prepared in this way is placed on a uniaxial traction bench. The two ends of the band are fixed to the bench and an attraction is applied between the two ends in order to separate the two ends at a speed of 200 mm / min. The force necessary for separation at 200 mm / min is increased.

Therefore, the bond strength between the reinforcing fibers and the lining 11 could be measured on a

20 length of 10 cm corresponding to a contact surface between the reinforcing fibers and the lining 11 of 1 800 mm2. The results are presented in table 2 below:

Table 2

Example 1

Example 2 Example 3 Example 4 Example C

Adhesion Strength (N)

2140 2908 3072 2960 1368

Increase %

56% 113% 125% 116% 0%

Adhesion force per unit area (N / mm2 = MPa)

0.43 0.86 0.95 0.88 0

Therefore, it is observed that with respect to a stabilization band in which the coating is entirely PEBDL-nf, the increase in adhesion strength is already 56% for a coating in which the functionalized polymer material comprises 25% PEBDL-f. This increase rises to more than 110% for stabilization bands with a coating in which the functionalized polymer material comprises 50%, 75% and 100% PEBDL-f.

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Claims (15)

image 1 1. Reinforced stabilization band (1) for reinforced dam structures, comprising long reinforcing fibers (12) and a longitudinal lining (11) that surrounds or encloses the long reinforcing fibers (12), the 5 coating (11) being at least partially of a functionalized polymer material (111) comprising a functionalized polyolefin.

2.

Stabilization band (1) according to claim 1, wherein the functionalized polyolefin comprises from 0.01% to 45% by mass of functionalization.

3.

Stabilization band (1) according to claim 1 or claim 2, wherein the functionalized polymer material (111) comprises a mixture of non-functionalized polymer and functionalized polyolefin.

4. Stabilization band (1) according to claim 3, wherein the mass ratio of functionalized polyolefin 15: non-functionalized polymer is between 1: 9 and 10: 0. 5. Stabilization band (1) according to one of claims 1 to 4, wherein the functionalized polymer material (111) has a functionalization gradient with a maximum in contact with the reinforcing fibers (12) and that decreases as it moves away from the reinforcing fibers (12). 6. Stabilization band (1) according to one of claims 1 to 5, wherein the functionalized polyolefin is a polyololefin substituted by a chemical element having a functional group selected from mono or di-carboxylic acid anhydrides or on which the chemical element has been grafted. 7. Stabilization band (1) according to claim 6, wherein the chemical element is a maleic anhydride group, phthalic anhydride or an acrylic acid.

8.

Stabilization band (1) according to one of claims 1 to 7, wherein the coating (11) comprises a non-functionalized zone (112) that surrounds or encloses the functionalized polymer material (111).

9.

Stabilization band (1) according to one of claims 1 to 8, wherein the reinforcing fibers (12) are of a material chosen from polyvinyl alcohol (PVAL), polyesters, silica glass, polyamides linear or aromatic and metals.

10. Stabilization band (1) according to one of claims 1 to 9, wherein the reinforcing fibers (12) are in the form of threads, braided threads, or ropes; being these threads, braided threads or spun or braided ropes.

eleven.

Stabilization band (1) according to one of claims 1 to 10, wherein the coating (11) comprises at least one longitudinal edge (113) free of reinforcing fibers (12) and having notches (114).

12.

Stabilization layer (10) made at least in part with stabilization bands (1) according to one of claims 1 to 11.

13. Stabilization layer (10) according to claim 12, made in the form of a georetic grid formed by a warp and a weft, the warp and the weft being formed in part by stabilization bands (1), the warp and the weft being woven or superimposed on each other.

14.

Stabilization layer (10) according to claim 13, wherein the warp and weft stabilization bands are joined at certain intersection points by heat welding or adhesive bonding.

fifteen.

 Reinforced dike structure (2) comprising:

- dike (21); Y 55 - at least one stabilization band (1) according to one of claims 1 to 11 and at least one stabilization layer (10) according to one of claims 12 to 14, said at least one stabilization band ( 1) and / or said at least one stabilization layer (10) being placed slightly horizontal on one or more levels in the dike. 16. Reinforced dike structure (2) according to claim 15, further comprising a coating (22) and connectors (23) to connect at least a part of the stabilization bands (1) to the liner (22). 17. Method of manufacturing a stabilization band according to one of claims 1 to 11, which comprises: 65 -the heating of the functionalized polymer material at least at the activation temperature of the group 9 image2 functionalized functionalized polyolefin; Y -the forming of the functionalized polymer material around the reinforcing fibers to form the lining that surrounds or encloses the reinforcing fibers thereby obtaining the stabilization band. 18. Method according to claim 17, comprising: -the stretching of the reinforcing fibers; the forming of the functionalized polymer material being performed by extrusion of the functionalized polymer material around the reinforcing fibers. Method according to claim 17, wherein; The method further comprises heating non-functionalized polymer and stretching the reinforcing fibers; in which the forming of the functionalized polymer material is carried out by coextrusion of the material of 15 functionalized polymer around the reinforcing fibers and the non-functionalized polymer around the functionalized polymer material forming the non-functionalized area of the coating surrounding or enclosing the functionalized polymer material. 20. Method according to claim 18 or claim 19, wherein stretching of the reinforcing fibers is performed as the coating is extruded. 10