EP1216328A1 - Modular drainage unit - Google Patents

Modular drainage unit

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Publication number
EP1216328A1
EP1216328A1 EP00966218A EP00966218A EP1216328A1 EP 1216328 A1 EP1216328 A1 EP 1216328A1 EP 00966218 A EP00966218 A EP 00966218A EP 00966218 A EP00966218 A EP 00966218A EP 1216328 A1 EP1216328 A1 EP 1216328A1
Authority
EP
European Patent Office
Prior art keywords
collecting duct
drainage
drainage block
block according
modular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00966218A
Other languages
German (de)
French (fr)
Other versions
EP1216328B1 (en
Inventor
Jean-Louis Froehly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1216328A1 publication Critical patent/EP1216328A1/en
Application granted granted Critical
Publication of EP1216328B1 publication Critical patent/EP1216328B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • E02B11/005—Drainage conduits

Definitions

  • the present invention relates to a modular drainage block intended to drain the soil, in general, and around buildings and dwellings, in particular.
  • Publication DE-A-22 07 216 describes a monobloc drainage block of square section, crossed by a central and longitudinal collecting duct. It is made of a granular material offering very restricted passages for drainage water, thus not allowing effective drainage. In addition, no device is provided for directing the drainage water in the direction of the collecting duct, therefore a part is evacuated in the embankment.
  • the publication US-A-3,440,823 describes a drainage device comprising two separate parts: an inverted V-shaped drainage pipe placed on a waterproof sole. The conduit only has very few lateral channels provided on the edges of the V, clearly insufficient to capture drainage water.
  • this inverted V shape does not offer sufficient resistance to crushing due to the weight of the embankments.
  • the publication NL-A-7 211 660 describes a drainage block crossed by a central and longitudinal collecting duct, this block being limited to the collection of rainwater in a gutter, since it only comprises openings arranged in the top part.
  • the present invention aims to provide this solution by proposing an efficient, practical, easy-to-use drainage block capable of effectively capturing and discharging drainage water.
  • the invention relates to a modular drainage block, characterized in that it comprises an elongated body, crossed by a longitudinal collecting duct, and comprising runoff passages opening on the peripheral walls of said body and opening into said collecting duct, these runoff passages being arranged to allow the circulation of drainage water by gravity in the direction of said collecting duct, in that it comprises connection means arranged to assemble two consecutive drainage blocks and in that it has a water permeable outer shell.
  • the runoff passages may be constituted by peripheral grooves opening into said collecting duct by transverse channels, transverse channels extending from said peripheral walls to said collecting duct, peripheral baffles opening into said collecting duct by transverse channels or even the interstices of a porous structure forming said body.
  • the connection means comprise a sleeve separate from said body, having external dimensions at most equal to the internal dimensions of said collecting duct, this sleeve being intended to fit into the ends opposite the collecting pipes of two consecutive drainage blocks.
  • connection means may comprise a sleeve integrated into said body, arranged as an extension of one of the ends of the collecting duct and arranged to form a male part, the other end of the collecting duct being arranged to form a female part intended to receive the male part of an adjacent drainage block.
  • connection means also comprise at least one lateral opening provided in said body at the same level as said collecting duct, this lateral opening having dimensions substantially equal to those of said collecting duct, opening into the latter, and being arranged to receive said sleeve intended to assemble at right angles two consecutive drainage blocks.
  • the outer envelope consists of a fabric made of a geotextile material, this fabric being wrapped around said body and being longer on one side so as to partially cover the following drainage block.
  • the body can be made of an impermeable material chosen from the group comprising at least polystyrene, polyvinyl chloride, concrete, synthetic resin and any synthetic material molded or extruded.
  • the body can also be made of a water-permeable material chosen from the group comprising at least expanded polystyrene and any synthetic material. structured or foamed.
  • the body may comprise a sealed zone disposed below the collecting duct and constituted by a sole made of impermeable material incorporated in or under said body.
  • the collecting duct can also include a sealed inner envelope, if necessary.
  • FIGS. 5A and 5B are respectively perspective and cross-section views of a drainage block according to an alternative embodiment
  • - FIGS. 6 and 7 are perspective views of two other alternative embodiments of the drainage block according to the invention.
  • the modular drainage block 1 is intended to drain the soil, for example but not exclusively, around a house or a building. It comprises an elongated body 2, a longitudinal collecting duct 3 passing through the body right through and runoff passages 5 opening onto the peripheral walls of the body 2 and opening into the collecting duct 3 arranged to allow the circulation of water from gravity runoff towards said conduit. It also includes connecting means 6 arranged to assemble two consecutive drainage blocks 1 and a water-permeable outer casing 7 only visible in dotted lines in FIG. 1.
  • the elongated body 2 must be able to withstand the pressure of a soil charge. To this end, it preferably has a polygonal, or possibly semicircular, section. Its shape defines at least one flat base 20 and a flat side wall 21 forming with said base a right angle making it possible to position the modular drainage block 1 at the base and along the foundations 9 of a building.
  • This body 2 can be made of a waterproof material such as polystyrene, polyvinyl chloride, concrete, synthetic resin or any other equivalent synthetic or non-synthetic material, molded or extruded. It can also be produced in a material permeable to water such as for example more or less dense expanded polystyrene or any other synthetic material foamed or structured for example in honeycomb. The main thing is that the combination of the geometry of this body and its material or structure allows it to offer sufficient resistance to compression to withstand an earth load.
  • a waterproof material such as polystyrene, polyvinyl chloride, concrete, synthetic resin or any other equivalent synthetic or non-synthetic material, molded or extruded. It can also be produced in a material permeable to water such as for example more or less dense expanded polystyrene or any other synthetic material foamed or structured for example in honeycomb.
  • honeycomb honeycomb
  • a sealed zone can be provided below the collecting duct 3 to prevent the flow of drainage water into the ground.
  • This waterproof zone can consist of a sole (not shown) made of an impermeable material incorporated in or under the body 2.
  • the longitudinal collecting duct 3 is preferably arranged in the lower part of the body 2 in order to be able to collect the drainage water by gravity. It is straight and substantially parallel to the base 20 of said body. It has a circular section but could have a section of different shape. It may, depending on the needs and the nature of the material constituting said body 2, include a sealed inner envelope (not shown) attached or integrated using a method of overmolding for example. This collecting duct 3 also has ends 30 of larger diameter, arranged to receive the connection means 6 described below.
  • the runoff passages 5 are constituted, in this example, by peripheral grooves 50 opening into the collecting duct 3 by transverse channels 51 provided on either side of said duct.
  • the peripheral grooves 50 are substantially identical and have a U-shaped profile, but could have a profile of different shape, of greater or lesser depth. They are formed in the upper 22 and side 21 walls of the body 2. They are rectilinear and arranged at regular intervals along the drainage block 1.
  • the section of the drainage block 1 illustrated in FIG. 3 shows that each groove 50 defines , in the middle part and near the upper wall 22, a top of which extends on either side an inclined plane to facilitate the circulation of drainage water by gravity.
  • the transverse channels 51 are oriented substantially perpendicular to the collecting duct 3 and arranged so as to open into this collecting duct 3 tangentially to its bottom. They are identical and have a circular section but could have a section of different shape. They can be slightly inclined in the direction of said collecting duct 3 to promote the circulation of drainage water by gravity.
  • each transverse channel 51 is connected to three peripheral grooves 50. The section of each transverse channel 51 is greater than that of the peripheral grooves 50, just as the section of the collecting duct 3 is significantly greater than that of the channels transverse 51, to be able to respond to the flow of drainage water.
  • connection means 6 comprise, in the example illustrated by FIG. 4, a sleeve 60 distinct from the body 2, cylindrical and having an outside diameter at most equal to the inside diameter of the ends 30 of the collecting duct 3.
  • This sleeve 60 is intended to fit into the ends 30 opposite the collecting ducts 3 of two consecutive drainage blocks 1 making it possible to assemble them linearly.
  • connection means 6 also include a lateral opening 61 provided in each side wall 21 of the body 2 at the same level as the collecting duct 3, near one of its ends and opening into this duct.
  • These lateral openings are circular but could have a different shape and have a diameter substantially equal to that of the ends 30 of said conduit. They are arranged to receive the sleeve 60 allowing two consecutive drainage blocks 1 to be assembled at right angles, as shown in FIG. 4.
  • These lateral openings 61 are delimited by a precut area 62 formed in the lateral walls 21 of said body 2. To use them, it is necessary to remove the precut area 62 which then forms a plug serving to close off the end 30 of the corresponding collecting duct 3.
  • the outer envelope 7 consists of a fabric made of a geotextile material, of substantially rectangular shape, intended to be wound around the body 2 and if necessary stapled to the body.
  • the longitudinal dimensions of this fabric 7 are greater than those of the drainage block 1 so as to at least partially cover the following drainage block 1. Thus the assembly area between two consecutive drainage blocks 1 is also covered.
  • This fabric 7 makes it possible to retain the particles of soil, stones and any other material capable of clogging the runoff passages 5 of the drainage block 1 and therefore rendering the latter ineffective.
  • other equivalent means could also be suitable, such as for example a very fine mesh envelope, glued, overmolded or attached around said body 2.
  • Drainage blocks 1 made for example of polystyrene expanded, have the advantage of being inexpensive, very light, easy to handle and work, and being able to land in all weathers even at very low temperatures. In addition, they are non-polluting, rot-proof and do not retain moisture.
  • FIG. 1 makes it possible to compare very clearly the traditional drainage method, on the left, with that carried out with the drainage block 1 according to the invention, on the right.
  • a trench 90 is dug around the foundations 9 of a building.
  • we cover the trench with a geotextile fabric we deposit the perforated collecting pipe, on which we pour gravel which we then cover with the two sections of geotextile fabric, then we backfill.
  • the drainage blocks 1 are positioned directly in the bottom of the trench 90 arranged in a slight slope, they are assembled one after the other by the sleeves 60 and then backfilled . It is easy to see that the realization of a drainage is greatly simplified by the fact that the drainage block 1 integrates in a single module at the same time the collecting conduit, the runoff passages and the geotextile filter.
  • This drainage system once in place, has the advantage of ensuring efficient and lasting drainage over time, the drainage blocks 1 being dimensionally very stable, despite possible landslides.
  • the drainage water is filtered by the geotextile casing 7 and is channeled by the peripheral grooves 50 in which they flow by gravity to the transverse channels 51, which centralize them in the collecting duct 3, the latter discharging them into the sanitation network.
  • the runoff passages 5 may consist of a multitude of transverse channels 52, straight and of small section, extending directly from the peripheral walls of the body 2 of the drainage block 1 to the conduit manifold 3.
  • the connection means 6 consist of a sleeve 63 forming a single piece with the body 2, arranged in extension of one of the ends of the manifold conduit 3 and arranged to form a male part.
  • the other end 64 of the collecting duct 3 is arranged to form a female part intended to receive the male part 63 of an adjacent drainage block 1.
  • the runoff passages 5 may also consist of peripheral baffles 53 opening into the collecting duct 3 by transverse channels 51.
  • peripheral baffles 53 may be formed by relief shapes provided at the periphery of the body 2, such as for example round studs 54 (see fig. 6) or parallelepipedic studs 55 (see fig. 7) or any other form of different geometry.
  • Yet another solution consists in making the body 2 according to a porous structure, the runoff passages 5 being formed by the interstices of this porous structure.

Abstract

An economical, efficient, practical and easy-to-use modular drainage unit capable of efficiently collecting and evacuating drainage water and designed to provide a global solution for producing a very simple drainage process. The modular drainage unit (1) is characterized in that it comprises an elongated body (2), traversed by a longitudinal collecting conduit (3), and comprising flow passages (5) opening on the peripheral walls of the body (2) and emerging into the conduit (3), the flow passages (5) being arranged to enable drainage water to circulate by gravity towards the collecting conduit (3), and it comprises connecting method (6) designed to assemble two successive drainage units (1) and further comprises an outer water permeable casing (7) to trap soil. The invention is useful for draining grounds in general and around buildings.

Description

BLOC DE DRAINAGE MODULAIREMODULAR DRAINAGE BLOCK
La présente invention concerne un bloc de drainage modulaire destiné à drainer les sols, en général, et autour des bâtiments et habitations, en particulier.The present invention relates to a modular drainage block intended to drain the soil, in general, and around buildings and dwellings, in particular.
La pose d'un système de drainage traditionnel est fastidieux et nécessite des moyens importants et onéreux. La mise en place d'un tel système demande notamment les opérations suivantes : on réalise une tranchée que l'on recouvre d'un tissu géotextile, on déroule au fond de la tranchée un long tuyau de drainage généralement réalisé en PVC et perforé, on recouvre ce tuyau de gravier, on rabat le tissu géotextile puis on remblaie. Ce système présente par conséquent de nombreux inconvénients. Le tissu géotextile a tendance à glisser le long des parois de la tranchée quand on déverse le gravier et il se retrouve fréquemment sous le gravier. Le tuyau de drainage a tendance à remonter dans la tranchée en raison de sa rigidité et des vibrations engendrées lors du déversement du gravier. Lorsque les températures sont inférieures à -10°C, le tuyau en PVC devient cassant. De plus, ce tuyau de drainage est difficilement maniable. Il est, par conséquent, difficile de poser seul ce type de drainage et son coût de réalisation est élevé compte tenu du gravier à approvisionner et à transporter, et de la main d'oeuvre nécessaire.The installation of a traditional drainage system is tedious and requires significant and expensive means. The establishment of such a system requires in particular the following operations: a trench is made which is covered with a geotextile fabric, a long drainage pipe generally made of PVC and perforated is unwound at the bottom of the trench, cover this gravel pipe, we fold down the geotextile fabric then backfill. This system therefore has many disadvantages. The geotextile fabric tends to slide along the walls of the trench when the gravel is poured and it is frequently found under the gravel. The drainage pipe tends to go up in the trench due to its rigidity and the vibrations generated during the dumping of gravel. When temperatures are below -10 ° C, the PVC pipe becomes brittle. In addition, this drainage pipe is difficult to handle. It is therefore difficult to install this type of drainage alone and its cost of production is high given the gravel to be supplied and transported, and the labor required.
Certaines solutions ont été élaborées dans le but de résoudre une partie de ces problèmes. La publication DE-A-22 07 216 décrit un bloc de drainage monobloc de section carrée, traversé par un conduit collecteur central et longitudinal. Il est réalisé dans une matière granuleuse offrant des passages très restreints pour les eaux de drainage, ne permettant pas, de ce fait, un drainage efficace. De plus, aucun dispositif n'est prévu pour diriger les eaux de drainage en direction du conduit collecteur, de ce fait une partie s'évacue dans le remblai. La publication US-A-3 440 823 décrit un dispositif de drainage comportant deux pièces distinctes : un conduit de drainage en forme de V inversé posé sur une semelle imperméable. Le conduit ne comporte que très peu de canaux latéraux prévus sur les bords du V, nettement insuffisants pour capter les eaux de drainage. De plus, cette forme en V inversé n'offre pas une résistance suffisante à l'écrasement dû au poids des remblais. Enfin, la publication NL- A-7 211 660 décrit un bloc de drainage traversé par un conduit collecteur central et longitudinal, ce bloc étant limité au captage des eaux pluviales dans un caniveau, étant donné qu'il ne comporte que des ouvertures disposées en partie supérieure.Some solutions have been developed in order to solve part of these problems. Publication DE-A-22 07 216 describes a monobloc drainage block of square section, crossed by a central and longitudinal collecting duct. It is made of a granular material offering very restricted passages for drainage water, thus not allowing effective drainage. In addition, no device is provided for directing the drainage water in the direction of the collecting duct, therefore a part is evacuated in the embankment. The publication US-A-3,440,823 describes a drainage device comprising two separate parts: an inverted V-shaped drainage pipe placed on a waterproof sole. The conduit only has very few lateral channels provided on the edges of the V, clearly insufficient to capture drainage water. In addition, this inverted V shape does not offer sufficient resistance to crushing due to the weight of the embankments. Finally, the publication NL-A-7 211 660 describes a drainage block crossed by a central and longitudinal collecting duct, this block being limited to the collection of rainwater in a gutter, since it only comprises openings arranged in the top part.
Par conséquent, aucun dispositif existant ne permet d'apporter une solution efficace, fiable, simple et économique au problème du drainage.Consequently, no existing device makes it possible to provide an effective, reliable, simple and economical solution to the problem of drainage.
La présente invention vise à apporter cette solution en proposant un bloc de drainage performant, pratique, facile à utiliser et capable de capter et d'évacuer efficacement les eaux de drainage.The present invention aims to provide this solution by proposing an efficient, practical, easy-to-use drainage block capable of effectively capturing and discharging drainage water.
Dans ce but, l'invention concerne un bloc de drainage modulaire, caractérisé en ce qu'il comporte un corps allongé, traversé par un conduit collecteur longitudinal, et comportant des passages de ruissellement s'ouvrant sur les parois périphériques dudit corps et débouchant dans ledit conduit collecteur, ces passages de ruissellement étant agencés pour permettre la circulation des eaux de drainage par gravité en direction dudit conduit collecteur, en ce qu'il comporte des moyens de raccordement agencés pour assembler deux blocs de drainage consécutifs et en ce qu'il comporte une enveloppe extérieure perméable à l'eau.To this end, the invention relates to a modular drainage block, characterized in that it comprises an elongated body, crossed by a longitudinal collecting duct, and comprising runoff passages opening on the peripheral walls of said body and opening into said collecting duct, these runoff passages being arranged to allow the circulation of drainage water by gravity in the direction of said collecting duct, in that it comprises connection means arranged to assemble two consecutive drainage blocks and in that it has a water permeable outer shell.
Les passages de ruissellement peuvent être constitués par des rainures périphériques débouchant dans ledit conduit collecteur par des canaux transversaux, des canaux transversaux s'étendant desdites parois périphériques audit conduit collecteur, des chicanes périphériques débouchant dans ledit conduit collecteur par des canaux transversaux ou encore les interstices d'une structure poreuse formant ledit corps. Dans une forme de réalisation préférée de l'invention, les moyens de raccordement comportent un manchon distinct dudit corps, ayant des dimensions extérieures au plus égales aux dimensions intérieures dudit conduit collecteur, ce manchon étant destiné à s'emboîter dans les extrémités en regard des conduits collecteurs de deux blocs de drainage consécutifs.The runoff passages may be constituted by peripheral grooves opening into said collecting duct by transverse channels, transverse channels extending from said peripheral walls to said collecting duct, peripheral baffles opening into said collecting duct by transverse channels or even the interstices of a porous structure forming said body. In a preferred embodiment of the invention, the connection means comprise a sleeve separate from said body, having external dimensions at most equal to the internal dimensions of said collecting duct, this sleeve being intended to fit into the ends opposite the collecting pipes of two consecutive drainage blocks.
Selon une variante de réalisation envisageable, les moyens de raccordement peuvent comporter un manchon intégré audit corps, disposé en prolongement d'une des extrémités du conduit collecteur et agencé pour former une partie mâle, l'autre extrémité du conduit collecteur étant agencé pour former une partie femelle destinée à recevoir la partie mâle d'un bloc de drainage adjacent.According to a possible embodiment variant, the connection means may comprise a sleeve integrated into said body, arranged as an extension of one of the ends of the collecting duct and arranged to form a male part, the other end of the collecting duct being arranged to form a female part intended to receive the male part of an adjacent drainage block.
D'une manière avantageuse, les moyens de raccordement comportent également au moins une ouverture latérale prévue dans ledit corps au même niveau que ledit conduit collecteur, cette ouverture latérale ayant des dimensions sensiblement égales à celles dudit conduit collecteur, débouchant dans ce dernier, et étant agencée pour recevoir ledit manchon destiné à assembler en angle droit deux blocs de drainage consécutifs.Advantageously, the connection means also comprise at least one lateral opening provided in said body at the same level as said collecting duct, this lateral opening having dimensions substantially equal to those of said collecting duct, opening into the latter, and being arranged to receive said sleeve intended to assemble at right angles two consecutive drainage blocks.
Selon la forme de réalisation préférée, l'enveloppe extérieure est constituée d'un tissu réalisé dans une matière géotextile, ce tissu étant enroulé autour dudit corps et étant plus long d'un côté de manière à recouvrir partiellement le bloc de drainage suivant.According to the preferred embodiment, the outer envelope consists of a fabric made of a geotextile material, this fabric being wrapped around said body and being longer on one side so as to partially cover the following drainage block.
Le corps peut être réalisé dans une matière imperméable à l'eau choisie parmi le groupe comprenant au moins le polystyrène, le polychlorure de vinyle, le béton, la résine de synthèse et toute matière synthétique moulée ou extradée.The body can be made of an impermeable material chosen from the group comprising at least polystyrene, polyvinyl chloride, concrete, synthetic resin and any synthetic material molded or extruded.
Le corps peut également être réalisé dans une matière perméable à l'eau choisie parmi le groupe comprenant au moins le polystyrène expansé et toute matière synthétique structurée ou moussée. Dans ce cas, le corps peut comporter une zone étanche disposée en dessous du conduit collecteur et constituée par une semelle en matière imperméable incorporée dans ou sous ledit corps. Le conduit collecteur peut aussi comporter une enveloppe intérieure étanche, si nécessaire.The body can also be made of a water-permeable material chosen from the group comprising at least expanded polystyrene and any synthetic material. structured or foamed. In this case, the body may comprise a sealed zone disposed below the collecting duct and constituted by a sole made of impermeable material incorporated in or under said body. The collecting duct can also include a sealed inner envelope, if necessary.
La présente invention et ses avantages apparaîtront mieux dans la description suivante d'exemples de réalisation, non exhaustifs, en référence aux dessins annexés, dans lesquels :The present invention and its advantages will appear better in the following description of non-exhaustive exemplary embodiments, with reference to the appended drawings, in which:
- la figure 1 représente schématiquement une vue en coupe d'un drainage d'un sol autour d'une habitation, effectué selon l'art antérieur classique (à gauche de la figure) et selon l'invention (à droite de la figure), la figure 2 est une vue en plan d'un bloc de drainage sans son enveloppe, la figure 3 est une vue en coupe transversale et en perspective du bloc de drainage de la figure 2, la figure 4 est une vue éclatée de deux blocs de drainage à assembler en angle droit, les figures 5A et 5B sont des vues respectivement en perspective et en coupe transversale d'un bloc de drainage selon une variante de réalisation, et - les figures 6 et 7 sont des vues en perspective de deux autres variantes de réalisation du bloc de drainage selon l'invention.- Figure 1 schematically shows a sectional view of a drainage of a soil around a house, carried out according to the conventional prior art (left of the figure) and according to the invention (right of the figure) , Figure 2 is a plan view of a drainage block without its casing, Figure 3 is a cross-sectional and perspective view of the drainage block of Figure 2, Figure 4 is an exploded view of two blocks of drainage to be assembled at right angles, FIGS. 5A and 5B are respectively perspective and cross-section views of a drainage block according to an alternative embodiment, and - FIGS. 6 and 7 are perspective views of two other alternative embodiments of the drainage block according to the invention.
En référence aux figures 1 à 3, le bloc de drainage modulaire 1 selon l'invention est destiné à drainer les sols, par exemple mais non exclusivement, autour d'une habitation ou d'un bâtiment. Il comporte un corps allongé 2, un conduit collecteur longitudinal 3 traversant le corps de part en part et des passages de ruissellement 5 s'ouvrant sur les parois périphériques du corps 2 et débouchant dans le conduit collecteur 3 agencés pour permettre la circulation des eaux de ruissellement par gravité vers ledit conduit. Il comporte encore des moyens de raccordement 6 agencés pour assembler deux blocs de drainage 1 consécutifs et une enveloppe extérieure 7 perméable à l'eau uniquement visible en pointillés sur la figure 1.Referring to Figures 1 to 3, the modular drainage block 1 according to the invention is intended to drain the soil, for example but not exclusively, around a house or a building. It comprises an elongated body 2, a longitudinal collecting duct 3 passing through the body right through and runoff passages 5 opening onto the peripheral walls of the body 2 and opening into the collecting duct 3 arranged to allow the circulation of water from gravity runoff towards said conduit. It also includes connecting means 6 arranged to assemble two consecutive drainage blocks 1 and a water-permeable outer casing 7 only visible in dotted lines in FIG. 1.
Le corps allongé 2 doit pouvoir résister à la pression d'une charge de terre. A cet effet, il présente, de préférence, une section polygonale, ou éventuellement semi- circulaire. Sa forme définit au moins une base 20 plane et une paroi latérale 21 plane formant avec ladite base un angle droit permettant de positionner le bloc de drainage modulaire 1 à la base et le long des fondations 9 d'un bâtiment.The elongated body 2 must be able to withstand the pressure of a soil charge. To this end, it preferably has a polygonal, or possibly semicircular, section. Its shape defines at least one flat base 20 and a flat side wall 21 forming with said base a right angle making it possible to position the modular drainage block 1 at the base and along the foundations 9 of a building.
Ce corps 2 peut être réalisé dans une matière imperméable à l'eau comme par exemple le polystyrène, le polychlorure de vinyle, le béton, la résine de synthèse ou toute autre matière équivalente synthétique ou non, moulée ou extradée. Il peut être aussi réalisé dans une matière perméable à l'eau comme par exemple le polystyrène expansé plus ou moins dense ou toute autre matière synthétique moussée ou structurée par exemple en nid d'abeille. L'essentiel est que la combinaison de la géométrie de ce corps et de sa matière ou structure lui permette d'offrir une résistance suffisante à la compression pour résister à une charge de terre.This body 2 can be made of a waterproof material such as polystyrene, polyvinyl chloride, concrete, synthetic resin or any other equivalent synthetic or non-synthetic material, molded or extruded. It can also be produced in a material permeable to water such as for example more or less dense expanded polystyrene or any other synthetic material foamed or structured for example in honeycomb. The main thing is that the combination of the geometry of this body and its material or structure allows it to offer sufficient resistance to compression to withstand an earth load.
Dans le cas d'une matière perméable à l'eau, une zone étanche peut être prévue en dessous du conduit collecteur 3 pour éviter l'écoulement des eaux de drainage dans le sol. Cette zone étanche peut être constituée d'une semelle (non représentée) réalisée dans une matière imperméable incorporée dans ou sous le corps 2.In the case of a material permeable to water, a sealed zone can be provided below the collecting duct 3 to prevent the flow of drainage water into the ground. This waterproof zone can consist of a sole (not shown) made of an impermeable material incorporated in or under the body 2.
Le conduit collecteur 3 longitudinal est disposé, de préférence, dans la partie inférieure du corps 2 pour pouvoir collecter les eaux de drainage par gravité. Il est rectiligne et sensiblement parallèle à la base 20 dudit corps. Il a une section circulaire mais pourrait avoir une section de forme différente. Il peut, selon les besoins et la nature du matériau constituant ledit corps 2, comporter une enveloppe intérieure étanche (non représentée) rapportée ou intégrée en utilisant un procédé de surmoulage par exemple. Ce conduit collecteur 3 comporte également des extrémités 30 de plus grand diamètre, agencées pour recevoir les moyens de raccordement 6 décrits plus loin.The longitudinal collecting duct 3 is preferably arranged in the lower part of the body 2 in order to be able to collect the drainage water by gravity. It is straight and substantially parallel to the base 20 of said body. It has a circular section but could have a section of different shape. It may, depending on the needs and the nature of the material constituting said body 2, include a sealed inner envelope (not shown) attached or integrated using a method of overmolding for example. This collecting duct 3 also has ends 30 of larger diameter, arranged to receive the connection means 6 described below.
Les passages de ruissellement 5 sont constitués, dans cet exemple, par des rainures périphériques 50 débouchant dans le conduit collecteur 3 par des canaux transversaux 51 prévus de part et d'autre dudit conduit. Les rainures périphériques 50 sont sensiblement identiques et ont un profil en U, mais pourraient avoir un profil de forme différente, de profondeur plus ou moins grande. Elles sont ménagées dans les parois supérieure 22 et latérales 21 du corps 2. Elles sont rectilignes et disposées à intervalle régulier tout le long du bloc de drainage 1. La section du bloc de drainage 1 illustrée par la figure 3 montre que chaque rainure 50 définit, en partie médiane et à proximité de la paroi supérieure 22, un sommet duquel s'étend de part et d'autre un plan incliné pour faciliter la circulation des eaux de drainage par gravité.The runoff passages 5 are constituted, in this example, by peripheral grooves 50 opening into the collecting duct 3 by transverse channels 51 provided on either side of said duct. The peripheral grooves 50 are substantially identical and have a U-shaped profile, but could have a profile of different shape, of greater or lesser depth. They are formed in the upper 22 and side 21 walls of the body 2. They are rectilinear and arranged at regular intervals along the drainage block 1. The section of the drainage block 1 illustrated in FIG. 3 shows that each groove 50 defines , in the middle part and near the upper wall 22, a top of which extends on either side an inclined plane to facilitate the circulation of drainage water by gravity.
Les canaux transversaux 51 sont orientés sensiblement perpendiculairement au conduit collecteur 3 et disposés de telle manière à déboucher dans ce conduit collecteur 3 tangentiellement à son fond. Ils sont identiques et ont une section circulaire mais pourraient avoir une section de forme différente. Ils peuvent être légèrement inclinés en direction dudit conduit collecteur 3 pour favoriser la circulation des eaux de drainage par gravité. Dans l'exemple représenté, chaque canal transversal 51 est raccordé à trois rainures périphériques 50. La section de chaque canal transversal 51 est supérieure à celle des rainures périphériques 50, de même que la section du conduit collecteur 3 est nettement supérieure à celle des canaux transversaux 51 , pour pouvoir répondre au débit des eaux de drainage.The transverse channels 51 are oriented substantially perpendicular to the collecting duct 3 and arranged so as to open into this collecting duct 3 tangentially to its bottom. They are identical and have a circular section but could have a section of different shape. They can be slightly inclined in the direction of said collecting duct 3 to promote the circulation of drainage water by gravity. In the example shown, each transverse channel 51 is connected to three peripheral grooves 50. The section of each transverse channel 51 is greater than that of the peripheral grooves 50, just as the section of the collecting duct 3 is significantly greater than that of the channels transverse 51, to be able to respond to the flow of drainage water.
Les moyens de raccordement 6 comportent, dans l'exemple illustré par la figure 4, un manchon 60 distinct du corps 2, cylindrique et ayant un diamètre extérieur au plus égal au diamètre intérieur des extrémités 30 du conduit collecteur 3. Ce manchon 60 est destiné à s'emboîter dans les extrémités 30 en regard des conduits collecteurs 3 de deux blocs de drainage 1 consécutifs permettant de les assembler linéairement.The connection means 6 comprise, in the example illustrated by FIG. 4, a sleeve 60 distinct from the body 2, cylindrical and having an outside diameter at most equal to the inside diameter of the ends 30 of the collecting duct 3. This sleeve 60 is intended to fit into the ends 30 opposite the collecting ducts 3 of two consecutive drainage blocks 1 making it possible to assemble them linearly.
Ces moyens de raccordement 6 comportent également une ouverture latérale 61 prévue dans chaque paroi latérale 21 du corps 2 au même niveau que le conduit collecteur 3, à proximité d'une de ses extrémités et débouchant dans ce conduit. Ces ouvertures latérales sont circulaires mais pourraient avoir une forme différente et présentent un diamètre sensiblement égal à celui des extrémités 30 dudit conduit. Elles sont agencées pour recevoir le manchon 60 permettant d'assembler en angle droit deux blocs de drainage 1 consécutifs, comme représenté à la figure 4. Ces ouvertures latérales 61 sont délimitées par une zone prédécoupée 62 formée dans les parois latérales 21 dudit corps 2. Pour les utiliser, il faut retirer la zone prédécoupée 62 qui forme alors un bouchon servant à obturer l'extrémité 30 du conduit collecteur 3 correspondant.These connection means 6 also include a lateral opening 61 provided in each side wall 21 of the body 2 at the same level as the collecting duct 3, near one of its ends and opening into this duct. These lateral openings are circular but could have a different shape and have a diameter substantially equal to that of the ends 30 of said conduit. They are arranged to receive the sleeve 60 allowing two consecutive drainage blocks 1 to be assembled at right angles, as shown in FIG. 4. These lateral openings 61 are delimited by a precut area 62 formed in the lateral walls 21 of said body 2. To use them, it is necessary to remove the precut area 62 which then forms a plug serving to close off the end 30 of the corresponding collecting duct 3.
L'enveloppe extérieure 7 est constituée d'un tissu réalisé dans une matière géotextile, de forme sensiblement rectangulaire, destiné à être enroulé autour du corps 2 et si besoin agrafé sur le corps. Les dimensions longitudinales de ce tissu 7 sont supérieures à celles du bloc de drainage 1 de manière à recouvrir au moins partiellement le bloc de drainage 1 suivant. Ainsi la zone d'assemblage entre deux blocs de drainage 1 consécutifs est également recouverte. Ce tissu 7 permet de retenir les particules de terre, les cailloux et tout autre matériau susceptibles de colmater les passages de ruissellement 5 du bloc de drainage 1 et donc de rendre ce dernier inefficace. Bien entendu d'autres moyens équivalents pourraient également convenir comme par exemple une enveloppe à mailles très fines, collée, surmoulée ou rapportée autour dudit corps 2.The outer envelope 7 consists of a fabric made of a geotextile material, of substantially rectangular shape, intended to be wound around the body 2 and if necessary stapled to the body. The longitudinal dimensions of this fabric 7 are greater than those of the drainage block 1 so as to at least partially cover the following drainage block 1. Thus the assembly area between two consecutive drainage blocks 1 is also covered. This fabric 7 makes it possible to retain the particles of soil, stones and any other material capable of clogging the runoff passages 5 of the drainage block 1 and therefore rendering the latter ineffective. Of course, other equivalent means could also be suitable, such as for example a very fine mesh envelope, glued, overmolded or attached around said body 2.
L'utilisation et la mise en œuvre du bloc de drainage 1 modulaire selon l'invention sont très simples. Les blocs de drainage 1, réalisés par exemple en polystyrène expansé, ont l'avantage d'être peu chers, très légers, faciles à manipuler et à travailler, et de pouvoir se poser par tous les temps même à très basse température. De plus, ils sont non polluants, imputrescibles et ne gardent pas l'humidité.The use and implementation of the modular drainage block 1 according to the invention are very simple. Drainage blocks 1, made for example of polystyrene expanded, have the advantage of being inexpensive, very light, easy to handle and work, and being able to land in all weathers even at very low temperatures. In addition, they are non-polluting, rot-proof and do not retain moisture.
La figure 1 permet de comparer très clairement la méthode de drainage traditionnelle, à gauche, à celle effectuée avec le bloc de drainage 1 selon l'invention, à droite. Une tranchée 90 est creusée autour des fondations 9 d'un bâtiment. Dans la méthode traditionnelle, on recouvre la tranchée d'un tissu géotextile, on y dépose le tuyau collecteur perforé, sur lequel on déverse des graviers que l'on recouvre ensuite avec les deux pans de tissu géotextile, puis on remblaie.FIG. 1 makes it possible to compare very clearly the traditional drainage method, on the left, with that carried out with the drainage block 1 according to the invention, on the right. A trench 90 is dug around the foundations 9 of a building. In the traditional method, we cover the trench with a geotextile fabric, we deposit the perforated collecting pipe, on which we pour gravel which we then cover with the two sections of geotextile fabric, then we backfill.
Avec le bloc de drainage 1 de l'invention, on positionne les blocs de drainage 1 directement dans le fond de la tranchée 90 aménagé en légère pente, on les assemble l'un au bout de l'autre par les manchons 60 puis on remblaie. On constate aisément que la réalisation d'un drainage est grandement simplifiée par le fait que le bloc de drainage 1 intègre dans un seul module à la fois le conduit collecteur, les passages de ruissellement et le filtre géotextile.With the drainage block 1 of the invention, the drainage blocks 1 are positioned directly in the bottom of the trench 90 arranged in a slight slope, they are assembled one after the other by the sleeves 60 and then backfilled . It is easy to see that the realization of a drainage is greatly simplified by the fact that the drainage block 1 integrates in a single module at the same time the collecting conduit, the runoff passages and the geotextile filter.
Ce système de drainage, une fois en place, a l'avantage d'assurer un drainage efficace et durable dans le temps, les blocs de drainage 1 étant dimensionnellement très stables, malgré les éventuels glissements de terrain. Les eaux de drainage sont filtrées par l'enveloppe géotextile 7 et sont canalisées par les rainures périphériques 50 dans lesquelles elles s'écoulent par gravité jusqu'aux canaux transversaux 51, qui les centralisent dans le conduit collecteur 3, ce dernier les évacuant dans le réseau d'assainissement.This drainage system, once in place, has the advantage of ensuring efficient and lasting drainage over time, the drainage blocks 1 being dimensionally very stable, despite possible landslides. The drainage water is filtered by the geotextile casing 7 and is channeled by the peripheral grooves 50 in which they flow by gravity to the transverse channels 51, which centralize them in the collecting duct 3, the latter discharging them into the sanitation network.
Ainsi, les buts de l'invention sont entièrement atteints. La présente invention n'est toutefois pas limitée à l'exemple de réalisation décrit mais s'étend à toute modification et variante évidentes pour un homme du métier.Thus, the objects of the invention are fully achieved. The present invention is however not limited to the embodiment described but extends to any modification and variant obvious to a person skilled in the art.
Notamment et en référence aux figures 5A et 5B, les passages de ruissellement 5 peuvent être constitués d'une multitude de canaux transversaux 52, rectilignes et de petite section, s'étendant directement des parois périphériques du corps 2 du bloc de drainage 1 au conduit collecteur 3. Dans cet exemple de réalisation, les moyens de raccordement 6 sont constitués d'un manchon 63 formant une seule pièce avec le corps 2, disposé en prolongement d'une des extrémités du conduit collecteur 3 et agencé pour former une partie mâle. L'autre extrémité 64 du conduit collecteur 3 est agencée pour former une partie femelle destinée à recevoir la partie mâle 63 d'un bloc de drainage 1 adjacent.In particular and with reference to FIGS. 5A and 5B, the runoff passages 5 may consist of a multitude of transverse channels 52, straight and of small section, extending directly from the peripheral walls of the body 2 of the drainage block 1 to the conduit manifold 3. In this exemplary embodiment, the connection means 6 consist of a sleeve 63 forming a single piece with the body 2, arranged in extension of one of the ends of the manifold conduit 3 and arranged to form a male part. The other end 64 of the collecting duct 3 is arranged to form a female part intended to receive the male part 63 of an adjacent drainage block 1.
En référence aux figures 6 et 7, les passages de ruissellement 5 peuvent être également constitués de chicanes périphériques 53 débouchant dans le conduit collecteur 3 par des canaux transversaux 51. Ces chicanes périphériques 53 peuvent être constituées par des formes en relief prévues en périphérie du corps 2, comme par exemple des plots ronds 54 (cf. fig. 6) ou des plots parallélépipédiques 55 (cf. fig. 7) ou encore toute autre forme de géométrie différente.With reference to FIGS. 6 and 7, the runoff passages 5 may also consist of peripheral baffles 53 opening into the collecting duct 3 by transverse channels 51. These peripheral baffles 53 may be formed by relief shapes provided at the periphery of the body 2, such as for example round studs 54 (see fig. 6) or parallelepipedic studs 55 (see fig. 7) or any other form of different geometry.
Encore une autre solution consiste à réaliser le corps 2 selon une structure poreuse, les passages de ruissellement 5 étant constitués par les interstices de cette structure poreuse.Yet another solution consists in making the body 2 according to a porous structure, the runoff passages 5 being formed by the interstices of this porous structure.
Bien entendu, les formes et les dimensions du bloc de drainage et de ses différents conduits et canaux peuvent différer sans pour cela sortir de la protection définie par les revendications annexées. Of course, the shapes and dimensions of the drainage block and its various conduits and channels can differ without thereby departing from the protection defined by the appended claims.

Claims

Revendications claims
1. Bloc de drainage (1) modulaire, caractérisé en ce qu'il comporte un corps (2) allongé, traversé par un conduit collecteur (3) longitudinal, et comportant des passages de ruissellement (5) s'ouvrant sur les parois périphériques dudit corps (2) et débouchant dans ledit conduit collecteur (3), ces passages de ruissellement (5) étant agencés pour permettre la circulation des eaux de drainage par gravité en direction dudit conduit collecteur (3), en ce qu'il comporte des moyens de raccordement (6) agencés pour assembler deux blocs de drainage (1) consécutifs et en ce qu'il comporte une enveloppe extérieure (7) perméable à l'eau.1. Modular drainage block (1), characterized in that it comprises an elongated body (2), crossed by a longitudinal collecting duct (3), and comprising runoff passages (5) opening onto the peripheral walls of said body (2) and opening into said collecting duct (3), these runoff passages (5) being arranged to allow the circulation of drainage water by gravity towards said collecting duct (3), in that it comprises connection means (6) arranged to assemble two consecutive drainage blocks (1) and in that it comprises an outer envelope (7) permeable to water.
2. Bloc de drainage modulaire selon la revendication 1, caractérisé en ce que les passages de ruissellement (5) sont constitués par des rainures périphériques (50) débouchant dans ledit conduit collecteur (3) par des canaux transversaux (51).2. Modular drainage block according to claim 1, characterized in that the runoff passages (5) are constituted by peripheral grooves (50) opening into said collecting duct (3) by transverse channels (51).
3. Bloc de drainage modulaire selon la revendication 1, caractérisé en ce que les passages de ruissellement (5) sont constitués par des canaux transversaux (52) s'étendant desdites parois périphériques audit conduit collecteur (3).3. Modular drainage block according to claim 1, characterized in that the runoff passages (5) are constituted by transverse channels (52) extending from said peripheral walls to said collecting duct (3).
4. Bloc de drainage modulaire selon la revendication 1, caractérisé en ce que les passages de ruissellement (5) sont constitués par des chicanes périphériques (53) débouchant dans ledit conduit collecteur (3) par des canaux transversaux (51).4. Modular drainage block according to claim 1, characterized in that the runoff passages (5) consist of peripheral baffles (53) opening into said collecting duct (3) by transverse channels (51).
5. Bloc de drainage modulaire selon la revendication 1, caractérisé en ce que le corps (2) comporte une stracture poreuse et en ce que les passages de ruissellement (5) sont constitués par les interstices de ladite stracture poreuse.5. Modular drainage block according to claim 1, characterized in that the body (2) comprises a porous structure and in that the runoff passages (5) are formed by the interstices of said porous structure.
6. Bloc de drainage modulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de raccordement (6) comportent un manchon (60) distinct dudit corps (2), ayant des dimensions extérieures au plus égales aux dimensions intérieures dudit conduit collecteur (3), ce manchon (60) étant destiné à s'emboîter dans les extrémités en regard des conduits collecteurs (3) de deux blocs de drainage (1) consécutifs et alignés.6. Modular drainage block according to any one of the preceding claims, characterized in that the connection means (6) comprise a sleeve (60) distinct from said body (2), having external dimensions at most equal to the internal dimensions of said collecting duct (3), this sleeve (60) being intended to fit into the opposite ends of the collecting ducts (3) of two blocks of drainage (1) consecutive and aligned.
7. Bloc de drainage modulaire selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les moyens de raccordement (6) comportent un manchon (63) intégré audit corps (2), disposé en prolongement d'une des extrémités du conduit collecteur (3) et agencé pour former une partie mâle, l'autre extrémité du conduit collecteur (3) étant agencée pour former une partie femelle (64) destinée à recevoir la partie mâle (63) d'un bloc de drainage (1) adjacent.7. Modular drainage block according to any one of claims 1 to 5, characterized in that the connection means (6) comprise a sleeve (63) integrated into said body (2), arranged in extension of one of the ends of the collecting duct (3) and arranged to form a male part, the other end of the collecting duct (3) being arranged to form a female part (64) intended to receive the male part (63) of a drainage block (1 ) adjacent.
8. Bloc de drainage modulaire selon la revendication 6, caractérisé en ce que les moyens de raccordement (6) comportent au moins une ouverture latérale (61) prévue dans ledit corps (2) au même niveau que ledit conduit collecteur (3), cette ouverture latérale (61) ayant des dimensions sensiblement égales à celles dudit conduit collecteur (3), débouchant dans ce dernier, et étant agencée pour recevoir ledit manchon (60) destiné à assembler en angle droit deux blocs de drainage (1) consécutifs.8. Modular drainage block according to claim 6, characterized in that the connection means (6) comprise at least one lateral opening (61) provided in said body (2) at the same level as said collecting duct (3), this lateral opening (61) having dimensions substantially equal to those of said collecting duct (3), opening into the latter, and being arranged to receive said sleeve (60) intended to assemble at right angles two consecutive drainage blocks (1).
9. Bloc de drainage modulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que l'enveloppe extérieure (7) est constituée d'un tissu réalisé dans une matière géotextile, ce tissu étant enroulé autour dudit corps (2) et étant plus long d'un côté de manière à recouvrir au moins partiellement le bloc de drainage (1) suivant.9. Modular drainage block according to any one of the preceding claims, characterized in that the external envelope (7) consists of a fabric made of a geotextile material, this fabric being wound around said body (2) and being longer on one side so as to at least partially cover the next drainage block (1).
10. Bloc de drainage modulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps (2) est réalisé dans une matière imperméable à l'eau choisie parmi le groupe comprenant au moins le polystyrène, le polychlorure de vinyle, le béton, la résine de synthèse et toute matière synthétique moulée ou extradée.10. Modular drainage block according to any one of the preceding claims, characterized in that the body (2) is made of a waterproof material chosen from the group comprising at least polystyrene, polyvinyl chloride, concrete, synthetic resin and any molded or extruded synthetic material.
11. Bloc de drainage modulaire selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le corps (2) est réalisé dans une matière perméable à l'eau choisie parmi le groupe comprenant au moins le polystyrène expansé et toute matière synthétique structurée ou moussée.11. Modular drainage block according to any one of claims 1 to 9, characterized in that the body (2) is made of a water-permeable material chosen from the group comprising at least expanded polystyrene and any synthetic material structured or foamed.
12. Bloc de drainage modulaire selon la revendication 11, caractérisé en ce que le corps (2) comporte une zone étanche disposée en dessous du conduit collecteur et constituée par une semelle en matière imperméable incorporée dans ou sous ledit corps.12. Modular drainage block according to claim 11, characterized in that the body (2) comprises a sealed zone disposed below the collecting duct and constituted by a sole made of impermeable material incorporated in or under said body.
13. Bloc de drainage modulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le conduit collecteur (3) comporte une enveloppe intérieure étanche. 13. Modular drainage block according to any one of the preceding claims, characterized in that the collecting duct (3) comprises a sealed inner envelope.
EP00966218A 1999-09-29 2000-09-28 Modular drainage unit Expired - Lifetime EP1216328B1 (en)

Applications Claiming Priority (3)

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FR9912332 1999-09-29
FR9912332A FR2798944B1 (en) 1999-09-29 1999-09-29 DRAINAGE MONOBLOCK
PCT/FR2000/002685 WO2001023672A1 (en) 1999-09-29 2000-09-28 Modular drainage unit

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EP1216328A1 true EP1216328A1 (en) 2002-06-26
EP1216328B1 EP1216328B1 (en) 2005-09-07

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AT (1) ATE304084T1 (en)
CA (1) CA2385007A1 (en)
DE (1) DE60022526T2 (en)
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US10576321B2 (en) * 2016-12-19 2020-03-03 Joseph Solana In-ground trampoline system
ES2820546B2 (en) * 2019-10-21 2021-08-19 Construcciones Urdecon S A Urban drainage system

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WO2001023672A1 (en) 2001-04-05
FR2798944B1 (en) 2001-12-21
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DE60022526D1 (en) 2005-10-13
CA2385007A1 (en) 2001-04-05
FR2798944A1 (en) 2001-03-30
EP1216328B1 (en) 2005-09-07
US6712554B1 (en) 2004-03-30

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