EP2107172A1 - Water retention box - Google Patents
Water retention box Download PDFInfo
- Publication number
- EP2107172A1 EP2107172A1 EP09305277A EP09305277A EP2107172A1 EP 2107172 A1 EP2107172 A1 EP 2107172A1 EP 09305277 A EP09305277 A EP 09305277A EP 09305277 A EP09305277 A EP 09305277A EP 2107172 A1 EP2107172 A1 EP 2107172A1
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- European Patent Office
- Prior art keywords
- tray
- bottom wall
- support platform
- lower support
- wall
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- 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.)
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
Definitions
- the field of the present invention is that of devices for the retention or storage of water and more particularly that of the flow of rainwater and its regulation.
- a number of rainwater retention devices are known, whose purpose is to temporarily store or retain water in order to regulate the flow that flows downstream from a given point, in the case of a heavy rain or the overflow of a gutter.
- Some of these devices are characterized by a cavity buried in the ground to achieve a hydraulic buffer between a water inlet, whose flow is suddenly very high, and a downstream pipe that can take into account a moderate flow. The water accumulates during the high flow and is then returned downstream through a calibrated drain.
- Other devices are designed so that the leakage flow is established by natural infiltration, rather than by a downstream pipe. These devices help replenish water tables when geological conditions are favorable. Still other devices allow to partially or completely retain the accumulated water for later use.
- These devices are generally constituted by parallelepipedic plastic bins, perforated walls to allow the passage of water. They are assembled together to form a large block, ranging from a few tens to a few thousand m 3 , depending on the size of the buffer that is desired.
- This buffer is placed inside the cavity, itself covered with one or more membranes which makes it possible to obtain, depending on the type of membranes used, a sealed volume vis-à-vis the ground in which it is implanted and to conserve the excess water the time that it is evacuated by the calibrated drain, or for a later use, is a permeable volume from which is carried out the slow diffusion towards the medium, by infiltration.
- Such devices are the subject of patent applications such as patents or patent applications FR2499515 , EP0943737 , EP1416099 , EP1887145 , JP63268823 or JP9112792 . They are characterized by retention tanks, stacked head to tail two by two, which have the shape of a parallelepiped with an open face and the opposite face carrying columns which provide the support of the upper tray layer.
- the present invention aims to improve existing systems by providing a water retention tank that can support large loads (up to 450 Kilo Newtons per m 2 against 30 to 40 Kilo Newtons per m 2 for some trays of the prior art), while minimizing the amount of material that is needed to produce it.
- two identical trays can be stacked in a position rotated 180 ° from each other, with the support platforms bottom of a tray cooperating with the upper support platforms of the tray from below.
- the connecting walls take up the compression efforts between support platforms. They can be dimensioned to present an interesting ratio between the compressive forces and allowable buckling and the amount of material required.
- each connecting wall comprises a portion of thickness which connects a thick side of an upper support platform to a thick side of a lower support platform, said thick sides. being perpendicular to the side of the bottom wall.
- each connecting wall further comprises an inner portion connecting the side of the bottom wall to an inner side of a lower support platform, and an outer portion extending from an outer side of a platform superior support.
- Such a shape of the connecting walls provides good resistance to compression and buckling, without requiring a large amount of material.
- the inner portion and the outer portion are inclined to allow interlocking of the tray with an identical tray.
- a set of identical bins can be stored and transported occupying a limited space.
- the inner portions and / or the outer portions of two adjacent connecting walls delimit a V-shaped notch for the passage of water.
- the tray comprises four corner pillars at the corners of the bottom wall, each corner pillar having a wider lower platform along one side of the bottom wall than another to correspond to the alignment of the lower support platforms of the side walls.
- the tray comprises, at an upper support platform, a hole and, at a corresponding lower support platform, a pad. This allows centering stacked bins.
- the tray comprises a strapping which surrounds the side walls at the lower support platforms.
- the outer portion extends between an outer side of an upper support platform and the strapping.
- the strapping has, along two adjacent sides, at least one male fastener and, along the other two sides, at least one female fastener.
- the male fastener comprises a tongue of T-shaped section protruding from the strapping
- the female fastener comprises a receiving groove.
- Such a tongue can be made without exceeding far beyond the strapping, and without constituting a blunt shape, while being able to cooperate with the groove of an adjacent tray.
- the risk of damaging the tongue by impact, and the risk of damaging the membranes by punching are therefore limited.
- the bottom wall comprises a number of hollow columns, extending in the same direction as the connecting walls, towards the open face of the tray, and of sufficient length to cooperate with the Bottom wall of the tray immediately below when stacking. Unlike the tanks of the prior art, these columns are reduced in number so as not to penalize the water capacity of the system, and to optimize the ratio between the mechanical strength and the amount of material used.
- these columns are arranged in quincunxes, to allow, in a certain position, the embedding of the bins into each other in one reduced volume suitable for transport and storage, and in the other position, by pivoting at 180 ° in the plane of the bottom wall, the superposition of the bins one above the other in an expanded volume corresponding to the service position .
- the arrangement of the columns, in particular their spacing makes it possible to preserve a sufficiently large interior volume, free of obstacles, capable of receiving an accessory (s), such as for example a drain, or a conduit, or a conduit of hydrocurage.
- the free internal volume has the possibility of integrating accessory (s) of general cylindrical or inverted "U" shape, of sufficient section for conventional inspection procedures by remote control camera and cleaning by hydrocuring.
- This (these) accessory (s) is (are) then wedged (s) laterally by the columns, inside the bins, and can (may) extend through several consecutive trays in a rectilinear arrangement favorable both to the function referred to as ease of installation.
- the walls of the bins can be locally indented to let through the tubular elements from side to side.
- This modification has the advantage of allowing the sequential placement of trays bottom excavation, then tubular accessories of indifferent length, then bins.
- This sequence is clearly advantageous in terms of ease of installation and time saving, compared to the prior art, which requires the lateral introduction of the tubular accessories through the tanks after their introduction into the retention cavity. It is even more advantageous in the case of the implantation of a tubular accessory provided with a filter medium on its outer face.
- the mesh of crossed ribs which constitutes the bottom of the tray comprises, in two symmetrical locations with respect to the geometric axes of the bottom, meshes whose spacing is substantially wider than the set of surrounding meshes.
- these initial support and stalling functions are obtained by the use of generally flat trays, able to fit under the underside of the trays, at the rate of one tray per tray , therefore interposed between the (the) membrane (s) of the bottom of the cavity and the lower support platforms bins.
- These plates have a total bearing area much greater than the sum of the areas of the lower bearing surfaces of the tanks, and are therefore able to reduce the risk of punching damage to the membrane (s).
- the plate comprises at least one peripheral upper support platform, which cooperates with the plurality of lower support platforms of the tray.
- the rectangular format of the tray has dimensions slightly smaller than the dimensions of the strapping of the side walls of the tray, which allows to embed the tray inside the strapping, thereby achieving a centering of one piece relative to the other .
- the platform of upper peripheral support of the plate offers, by analogy with the upper support platforms bins, holes adapted to cooperate with the pads of the lower support platforms bins. These complementary recesses have the function of preventing the connecting walls of the bins from sliding outwardly of the support rectangle under the combined efforts of compression and buckling, suffered in service situation. In this assembly position, the columns of the bins are supported on the surface of the trays, in order to transmit the load to the ground.
- the plate can advantageously be fixed to the container in final assembly position before its final placement in the bottom of the retention cavity.
- the handling of the trays of the first layer, and their associated tray is therefore simultaneous, resulting in greater ease of positioning and a gain of time.
- the fixing of the trays under the trays is done by hooking type "clips" at the end of the columns of the bins provided for this purpose with a corresponding hole.
- FIG. 1 and 2 we see a set of two identical containers 1; they are nested one inside the other on the figure 1 and returned and stacked on top of each other on the figure 2 .
- the upper tray is rotated in a horizontal plane by 180 ° with respect to the lower tray.
- the points of support on each of these bins are arranged so that, before this turnaround of 180 ° they are in a position where the nesting is possible and that after this turnaround is the stack that becomes it.
- the tanks 1 have a substantially parallelepipedal shape, comprising a bottom wall 2, conventionally designated as the upper part of the tank (because of its position when the tanks are stacked as on the figure 2 ), which has the form of a grid consisting of a set of short intersecting vertical walls. They also have side walls 3 formed by a succession of pillars 4 V-shaped and inverted V, which alternate alternately. This V shape is defined to allow nesting boxes in one another for storage or transport. In order to ensure points of support for the nesting or stacking of the tanks these V and these inverted V are truncated near their pointed end, so as to reveal lower support platforms 8 planes on the side of the face and the upper support platforms 9 planes on the side of the bottom wall 2.
- the side walls 3 are thus in the form of a ribbon of a given width, taking place along the V and inverted V and of their support platforms. The width of the ribbon is determined according to the load that the tray 1 is supposed to support.
- a side wall 3 comprises a plurality of upper support platforms 9 periodically arranged along one side of the bottom wall 2.
- the lower support platforms 8 are arranged alternately with respect to the upper support platforms 9 , away from the bottom wall 2.
- the upper support platforms 9 of a side wall 3 are arranged in image positions of the lower support platforms 8 of the side wall 3 opposite to the geometric axis passing through the center of the bottom of the tank and perpendicular to the bottom of the tank.
- a pivoting of a tray 180 ° relative to this axis puts the lower platforms 8 of a tray to the right of the upper platforms 9 of a tray placed underneath. This allows a stack of several identical trays 1 as shown in FIG. figure 2 .
- Each side wall 3 further comprises a plurality of connecting walls 30 connecting the upper support platforms 9 to the lower support platforms 8 by taking up the compression forces.
- an upper support platform 9 is connected to the two lower support platforms 8 adjacent respectively by two symmetrical connecting walls 30.
- a connecting wall 30 comprises an inner portion 32, located on the inner side of the tray 1, a portion of thickness 31, arranged in the thickness of the side wall 3, and an outer portion 33, located on the side of the the outside of the tray 1.
- the inner portion 32 extends between the side of the bottom wall 2 and an inner side 36 of a lower support platform 8.
- the thickness portion 31 extends between a side d thickness 38 of an upper support platform 9 and a thickness side 39 of an adjacent lower support platform 8.
- the outer portion 33 extends between an outer side 37 of an upper support wall 9 and a strapping 10 which will be described below.
- the inner portion 32, the thickness portion 31 and the outer portion 33 of the connecting walls 30 are inclined so as to form the pillars 4 which, as said above, are frustoconical to allow interlocking of several identical tanks 1 as on the figure 1 .
- the inner portions 32 of two adjacent connecting walls 30 delimit a notch 34 V-shaped for the passage of water.
- the outer portions 33 of two adjacent connecting walls 30 delimit a notch 35 also V-shaped for the passage of water.
- the side walls 3 meet at the four corners and are connected to each other by corner pillars 5.
- the upper and lower faces of these corner pillars 5 are arranged, in known manner, to allow interlocking bins 1 as illustrated on the figure 1 , and stacking them as illustrated on the figure 2 after 180 ° pivoting of every other bin.
- the lower faces 40 of the different Angle pillars 5 are more or less extended along the sides of the tray 1 to introduce the aforementioned offset between the support platforms of opposite sides.
- columns 6 which extend from the bottom 2 in the direction of the open face, and which terminate in a foot of column 7 in the form of a plane lower shoulder, which is parallel to the bottom 2 and located approximately at the same height as the lower platforms 8 of the pillars 4 of the side walls 3 and those of the corner pillars 5.
- the lower parts of the side walls 3 are gripped, and held together, by a strapping 10, which ensures the cohesion of the pillars 4 and corner pillars 5, and thus ensures the absence of a large gap walls 3 when the tray 1 rests on its open part and that heavy loads are applied on it.
- Each support 11 at the bottom of the column is placed on the bottom 2 at a position corresponding to the image of the foot of a column 6 with respect to the axis of pivoting of the tray 1.
- the columns 6 have a length slightly greater than that of the pillars 4 of the side walls 3 or that of the corner pillars 5.
- the walls of the grids forming the bottom 2 have slightly shortened lengths to allow the entry of the legs 7 of columns in the corresponding supports 11.
- pawns of centering 12 are positioned on some lower platforms 8 of each side wall 3, and parallel holes 13 are formed in the upper platforms 9 which are at locations corresponding to the lower platforms 8 they will support after the pivoting 180 °.
- this clip 18 allows if the trays 14 are placed at the bottom of the excavation beforehand, to center the bins 1 relative to each other, and otherwise to secure the bins with the trays before their introduction and so to handle them more easily. Because of this possibility of simultaneous manipulation of the trays 14 and the tanks 1, assembled for the first layer at the bottom of the excavation, it is not necessary to equip the trays 14 with the same handling handles 45 as those integrated in the bottoms 2 bins 1.
- FIG. 7 we see an attachment device of two tanks 1 positioned side by side, as they are to form a water storage buffer.
- On the side edge of the strapping 10 are positioned on two adjacent sides two T-shaped male fasteners 19, and on the other two adjacent sides of the groove-like female fasteners 20.
- the male fasteners 19 can cooperate with the female fasteners to prevent any lateral displacement of a tray 1 relative to the tray to which it is connected.
- the arrangement of two male fasteners on two adjacent sides and two female fasteners on the other two adjacent sides allows an assembly of the bins on the same layer in an undifferentiated sequence, that is to say that the deployment of the bins can s' do this by first assembling the short sides to form a long line or first the long sides to form a wide line. It is also possible to progress in parallel along the short sides and long sides, which gives all the flexibility necessary for the construction site. It is not necessary to wait until the entire search is done to begin the assembly of the bins, both horizontally and vertically.
- connection 41 fixed on the side wall 3 of a tank 1.
- the connection 41 makes it possible to connect the hydraulic buffer to a conduit for the supply of the basin, the emptying or the leakage flow of the basin or the creation of a vent or overflow.
- the connector 41 comprises a connecting sleeve for connecting to the conduit and fixing means on the side wall 3 of a container 1.
- it may be a means cooperating with the notches 35 mentioned above and with the strapping 10, in order to fix the connection 41 by clipping.
- This mode of attachment advantageously makes it possible to arrange the coupling 41 indifferently to one or the other of the walls 3 of the tanks 1, to one or the other of the notches 35 in combination with the strapping 10, at any level of Stacking, without any prior preparation of the bins 1.
- This feature provides a high degree of modularity of the implantation of the supply and leakage ducts of the basin.
- the connector 41 has a planar annular surface 42 allowing, with a not shown flange, the fixing of the geomembrane to the connection 41 in a sealed manner.
- the figure 9 is a perspective view from above of several tanks 1 forming the upper face of a hydraulic buffer.
- the connectors 43 provided with perpendicular excrescences (not shown) connecting two or four adjacent tanks 1.
- the connectors 43 provide a support surface for the geomembrane, to prevent it from piercing under the weight of the ground that pushes it into the spaces between the bins 1.
- the figure 3 shows that the bins 1 have, at their bottom wall 2, eyelets 44 for fixing the connectors 43, for example by clipping.
- the figure 10 has several juxtaposed 1 bins in service situation, offering the option “visitable” or “hydrocurable”.
- the side walls 3 of the short sides of the tanks 1 are notched by machining so as to allow the crossing of the tanks 1 through a tubular accessory 46 constituting a drain, or a visit channel for inspection by remote-controlled camera, or a canal of hydrocuring.
- This tubular accessory 46 may be of indifferent length, and may be placed at the bottom of the excavation in one or more segments, on the trays 14, then covered by the trays 1 while maintaining its straightness.
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Abstract
Description
Le domaine de la présente invention est celui des dispositifs de rétention ou de stockage de l'eau et plus particulièrement celui de l'écoulement des eaux pluviales et de sa régulation.The field of the present invention is that of devices for the retention or storage of water and more particularly that of the flow of rainwater and its regulation.
On connaît un certain nombre de dispositifs de rétention d'eaux pluviales, qui ont pour objet un stockage ou une rétention temporaire d'eaux afin de réguler le débit qui s'écoule en aval d'un point donné, dans le cas d'une forte pluie ou du débordement d'un caniveau. Certains de ces dispositifs se caractérisent par une cavité enfouie dans le sol permettant de réaliser un tampon hydraulique entre une arrivée d'eau, dont le débit est soudainement très élevé, et une conduite aval qui ne peut prendre en compte qu'un débit modéré. L'eau s'y accumule le temps du débit élevé et est ensuite restituée vers l'aval à travers un drain calibré. D'autres dispositifs sont conçus de sorte que le débit de fuite s'établisse par infiltration naturelle, plutôt que par une conduite aval. Ces dispositifs contribuent à reconstituer les nappes phréatiques lorsque les conditions géologiques sont favorables. D'autres dispositifs encore permettent de retenir partiellement ou en totalité l'eau accumulée pour une utilisation ultérieure.A number of rainwater retention devices are known, whose purpose is to temporarily store or retain water in order to regulate the flow that flows downstream from a given point, in the case of a heavy rain or the overflow of a gutter. Some of these devices are characterized by a cavity buried in the ground to achieve a hydraulic buffer between a water inlet, whose flow is suddenly very high, and a downstream pipe that can take into account a moderate flow. The water accumulates during the high flow and is then returned downstream through a calibrated drain. Other devices are designed so that the leakage flow is established by natural infiltration, rather than by a downstream pipe. These devices help replenish water tables when geological conditions are favorable. Still other devices allow to partially or completely retain the accumulated water for later use.
Ces dispositifs sont en général constitués par des bacs parallélépipédiques en matière plastique, aux parois ajourées pour permettre le passage de l'eau. Ils sont assemblés entre eux de façon à constituer un bloc de grande dimension, pouvant aller de quelques dizaines à quelques milliers de m3, en fonction de la taille du tampon que l'on souhaite réaliser. Ce tampon est disposé à l'intérieur de la cavité, elle-même recouverte d'une ou plusieurs membranes qui permet(tent) d'obtenir selon le type de membranes utilisées, soit un volume étanche vis-à-vis du terrain dans lequel il est implanté et de conserver l'eau excédentaire le temps qu'elle s'évacue par le drain calibré, ou encore pour une utilisation ultérieure, soit un volume perméable à partir duquel s'opère la diffusion lente vers le milieu, par infiltration.These devices are generally constituted by parallelepipedic plastic bins, perforated walls to allow the passage of water. They are assembled together to form a large block, ranging from a few tens to a few thousand m 3 , depending on the size of the buffer that is desired. This buffer is placed inside the cavity, itself covered with one or more membranes which makes it possible to obtain, depending on the type of membranes used, a sealed volume vis-à-vis the ground in which it is implanted and to conserve the excess water the time that it is evacuated by the calibrated drain, or for a later use, is a permeable volume from which is carried out the slow diffusion towards the medium, by infiltration.
De tels dispositifs font l'objet de demandes de brevets comme par exemple les brevets ou demandes de brevets
Afin de soutenir des poids importants, la partie centrale de ces bacs est munie d'un nombre important de colonnes, ce qui, d'une part, nuit à la capacité d'eau que le bac est susceptible de contenir et, d'autre part, nécessite une quantité importante de matière pour réaliser le bac. Comme tous ces bacs sont réalisés par moulage, leur coût de revient, une fois que le moule est amorti, est fortement dépendant de la quantité de matière qui le constitue; la réduction du volume de matière constitue donc un avantage concurrentiel qui peut s'avérer décisif.In order to support heavy weights, the central part of these bins is provided with a large number of columns, which, on the one hand, impairs the water capacity that the tank is likely to contain and, on the other hand, on the other hand, requires a large amount of material to make the tray. As all these tanks are made by molding, their cost, once the mold is damped, is highly dependent on the amount of material that constitutes it; reducing the volume of material is therefore a competitive advantage that can be decisive.
La présente invention a pour but d'améliorer les systèmes existants en proposant un bac de rétention d'eau qui permette de soutenir des charges importantes (pouvant aller jusqu'à 450 Kilo Newtons par m2 contre 30 à 40 Kilo Newtons par m2 pour certains bacs de l'art antérieur), tout en minimisant la quantité de matière qui est nécessaire pour le produire.The present invention aims to improve existing systems by providing a water retention tank that can support large loads (up to 450 Kilo Newtons per m 2 against 30 to 40 Kilo Newtons per m 2 for some trays of the prior art), while minimizing the amount of material that is needed to produce it.
A cet effet, l'invention a pour objet un bac de rétention d'eau comprenant une paroi de fond sensiblement rectangulaire et quatre parois latérales reliées respectivement aux côtés de la paroi de fond, caractérisé en ce que chaque paroi latérale comprend :
- une pluralité de plateformes de support supérieures agencées périodiquement le long d'un côté de la paroi de fond,
- une pluralité de plateformes de support inférieures agencées en alternance par rapport aux plateformes de support supérieures à distance de la paroi de fond, et
- une pluralité de parois de liaison, chaque paroi de liaison reliant une plateforme de support supérieure à une plateforme de support inférieure tout en laissant ouvert un passage pour l'eau, perpendiculairement à ladite paroi,
- a plurality of upper support platforms arranged periodically along one side of the bottom wall,
- a plurality of lower support platforms arranged alternately with respect to the upper support platforms remote from the bottom wall, and
- a plurality of connecting walls, each connecting wall connecting an upper support platform to a lower support platform while leaving open a passage for the water, perpendicular to said wall,
Grâce à ces caractéristiques, deux bacs identiques peuvent être empilés dans une position pivotée à 180° l'une de l'autre, avec les plateformes de support inférieures d'un bac coopérant avec les plateformes de support supérieures du bac d'en dessous. Les parois de liaison reprennent les efforts de compression entre plateformes de support. Elles peuvent être dimensionnées pour présenter un rapport intéressant entre les efforts de compression et de flambement admissibles et la quantité de matière nécessaire.Thanks to these features, two identical trays can be stacked in a position rotated 180 ° from each other, with the support platforms bottom of a tray cooperating with the upper support platforms of the tray from below. The connecting walls take up the compression efforts between support platforms. They can be dimensioned to present an interesting ratio between the compressive forces and allowable buckling and the amount of material required.
Selon un mode de réalisation particulier, chaque paroi de liaison comprend une portion d'épaisseur qui relie un côté d'épaisseur d'une plateforme de support supérieure à un côté d'épaisseur d'une plateforme de support inférieure, lesdits côtés d'épaisseur étant perpendiculaires au côté de la paroi de fond. Avantageusement, chaque paroi de liaison comprend en outre une portion intérieure reliant le côté de la paroi de fond à un côté intérieur d'une plateforme de support inférieure, et une portion extérieure s'étendant à partir d'un côté extérieur d'une plateforme de support supérieure.According to a particular embodiment, each connecting wall comprises a portion of thickness which connects a thick side of an upper support platform to a thick side of a lower support platform, said thick sides. being perpendicular to the side of the bottom wall. Advantageously, each connecting wall further comprises an inner portion connecting the side of the bottom wall to an inner side of a lower support platform, and an outer portion extending from an outer side of a platform superior support.
Une telle forme des parois de liaison offre une bonne résistance à la compression et au flambement, sans nécessiter une quantité de matière importante.Such a shape of the connecting walls provides good resistance to compression and buckling, without requiring a large amount of material.
De préférence, la portion intérieure et la portion extérieure sont inclinées afin de permettre un emboîtement du bac avec un bac identique. Dans ce cas, un ensemble de bacs identiques peut être stocké et transporté en occupant un espace limité.Preferably, the inner portion and the outer portion are inclined to allow interlocking of the tray with an identical tray. In this case, a set of identical bins can be stored and transported occupying a limited space.
Selon un mode de réalisation particulier, les portions intérieures et/ou les portions extérieures de deux parois de liaison adjacentes délimitent une encoche en forme de V pour le passage de l'eau.According to a particular embodiment, the inner portions and / or the outer portions of two adjacent connecting walls delimit a V-shaped notch for the passage of water.
De préférence, le bac comprend quatre piliers d'angle aux coins de la paroi de fond, chaque pilier d'angle présentant une plateforme inférieure plus étendue le long d'un côté de la paroi de fond que d'un autre afin de correspondre à l'alignement des plateformes de support inférieures des parois latérales.Preferably, the tray comprises four corner pillars at the corners of the bottom wall, each corner pillar having a wider lower platform along one side of the bottom wall than another to correspond to the alignment of the lower support platforms of the side walls.
Selon un mode de réalisation particulier, le bac comprend, au niveau d'une plateforme de support supérieure, un trou et, au niveau d'une plateforme de support inférieure correspondante, un plot. Cela permet un centrage des bacs empilés.According to a particular embodiment, the tray comprises, at an upper support platform, a hole and, at a corresponding lower support platform, a pad. This allows centering stacked bins.
Avantageusement, le bac comprend un cerclage qui entoure les parois latérales au niveau des plateformes de support inférieures.Advantageously, the tray comprises a strapping which surrounds the side walls at the lower support platforms.
De préférence, la portion extérieure s'étend entre un côté extérieur d'une plateforme de support supérieure et le cerclage.Preferably, the outer portion extends between an outer side of an upper support platform and the strapping.
Selon un mode de réalisation particulier, le cerclage présente, le long de deux côtés adjacents, au moins une attache mâle et, le long des deux autres côtés, au moins une attache femelle. Avantageusement, l'attache mâle comprend une languette de section en forme de T dépassant du cerclage, et l'attache femelle comprend une rainure de réception.According to a particular embodiment, the strapping has, along two adjacent sides, at least one male fastener and, along the other two sides, at least one female fastener. Advantageously, the male fastener comprises a tongue of T-shaped section protruding from the strapping, and the female fastener comprises a receiving groove.
Une telle languette peut être réalisée sans dépasser loin au-delà du cerclage, et sans constituer une forme contondante, tout en pouvant coopérer avec la rainure d'un bac adjacent. Les risques d'endommagement de la languette par choc, et les risques d'endommagement des membranes par poinçonnement sont donc limités.Such a tongue can be made without exceeding far beyond the strapping, and without constituting a blunt shape, while being able to cooperate with the groove of an adjacent tray. The risk of damaging the tongue by impact, and the risk of damaging the membranes by punching are therefore limited.
Pour augmenter la résistance à la compression des bacs, la paroi de fond comporte un certain nombre de colonnes creuses, se prolongeant dans le même sens que les parois de liaison, vers la face ouverte du bac, et de longueur suffisante pour venir coopérer avec la paroi de fond du bac immédiatement inférieur lors de leur empilement. Contrairement aux bacs de l'art antérieur, ces colonnes sont en nombre réduit afin de ne pas pénaliser la contenance en eau du système, et afin d'optimiser le rapport entre la résistance mécanique et la quantité de matière utiliséeTo increase the compressive strength of the tanks, the bottom wall comprises a number of hollow columns, extending in the same direction as the connecting walls, towards the open face of the tray, and of sufficient length to cooperate with the Bottom wall of the tray immediately below when stacking. Unlike the tanks of the prior art, these columns are reduced in number so as not to penalize the water capacity of the system, and to optimize the ratio between the mechanical strength and the amount of material used.
Selon un mode de réalisation particulier, et selon le même principe de symétrie des parois de liaison explicité plus haut, ces colonnes sont disposées en quinconces, afin de permettre, dans une certaine position, l'encastrement des bacs les uns dans les autres en un volume réduit propice au transport et au stockage, et dans l'autre position, par pivotement à 180° dans le plan de la paroi de fond, la superposition des bacs les uns au dessus des autres en un volume déployé correspondant à la position de service.According to a particular embodiment, and according to the same principle of symmetry of the connecting walls explained above, these columns are arranged in quincunxes, to allow, in a certain position, the embedding of the bins into each other in one reduced volume suitable for transport and storage, and in the other position, by pivoting at 180 ° in the plane of the bottom wall, the superposition of the bins one above the other in an expanded volume corresponding to the service position .
Par ailleurs, la disposition des colonnes, en particulier leur espacement, permet de préserver un volume intérieur suffisamment grand, exempt d'obstacles, susceptible de recevoir un(des) accessoire(s), tel(s) que par exemple un drain, ou un conduit de visite, ou un conduit d'hydrocurage. Pour cela, selon un mode de réalisation particulier, le volume intérieur libre présente la possibilité d'intégrer un(des) accessoire(s) d'allure générale cylindrique ou en « U » inversé, de section suffisante pour les interventions classiques d'inspection par caméra téléguidéee et de nettoyage par hydrocurage. Cet(ces) accessoire(s) se trouve(nt) alors calé(s) latéralement par les colonnes, à l'intérieur des bacs, et peut(peuvent) se prolonger à travers plusieurs bacs consécutifs selon une disposition rectiligne favorable tant à la fonction visée qu'à la facilité d'installation. Le fait de pouvoir disposer cet(ces) accessoire(s) en un seul segment rectiligne à travers la structure permet sans aucune complication d'installation de le pourvoir au préalable d'un habillage de type géotextile, ou autre tissus perméable faisant office de filtre apte à retenir tout élément solide de taille suffisante à l'intérieur dudit(desdits) accessoire(s). L'eau traversant le média filtrant vers la cavité de rétention sera ainsi filtrée. Le confinement des impuretés à l'intérieur dudit(desdits) accessoire(s) est propice aux interventions de maintenance dont il est fait mention plus haut.Moreover, the arrangement of the columns, in particular their spacing, makes it possible to preserve a sufficiently large interior volume, free of obstacles, capable of receiving an accessory (s), such as for example a drain, or a conduit, or a conduit of hydrocurage. For this, according to a particular embodiment, the free internal volume has the possibility of integrating accessory (s) of general cylindrical or inverted "U" shape, of sufficient section for conventional inspection procedures by remote control camera and cleaning by hydrocuring. This (these) accessory (s) is (are) then wedged (s) laterally by the columns, inside the bins, and can (may) extend through several consecutive trays in a rectilinear arrangement favorable both to the function referred to as ease of installation. The fact of being able to arrange this (these) accessory (s) in a single rectilinear segment through the structure makes it possible without any installation complication to provide it beforehand with a geotextile type covering, or other permeable fabric acting as a filter adapted to retain any solid element of sufficient size inside said (said) accessory (s). The water passing through the filter medium to the retention cavity will thus be filtered. Containment of impurities inside said accessory (s) is conducive to maintenance interventions mentioned above.
Pour correspondre à cette option d'installation, que l'on nommera « visitable » ou « hydrocurable », les parois des bacs peuvent être localement échancrées afin de laisser traverser les éléments tubulaires de part en part. Cette modification présente l'avantage d'autoriser la pose séquentielle des plateaux en fond de fouille, puis des accessoires tubulaires de longueur indifférente, puis des bacs. Cette séquence est nettement avantageuse en termes de facilité de pose et de gain de temps, comparée à l'art antérieur, qui nécessite l'introduction latérale des accessoires tubulaires à travers les bacs après leur mise en place dans la cavité de rétention. Elle est encore plus avantageuse dans le cas de l'implantation d'un accessoire tubulaire muni d'un média filtrant sur sa face extérieure.To match this installation option, which will be called "visitable" or "hydrocurable", the walls of the bins can be locally indented to let through the tubular elements from side to side. This modification has the advantage of allowing the sequential placement of trays bottom excavation, then tubular accessories of indifferent length, then bins. This sequence is clearly advantageous in terms of ease of installation and time saving, compared to the prior art, which requires the lateral introduction of the tubular accessories through the tanks after their introduction into the retention cavity. It is even more advantageous in the case of the implantation of a tubular accessory provided with a filter medium on its outer face.
Le maillage de nervures croisées qui constitue le fond du bac comporte, en deux endroits symétriques par rapport aux axes géométriques du fond, des mailles dont l'espacement est sensiblement plus large que l'ensemble des mailles environnantes. Ces dimensions particulières de mailles, ainsi que leur localisation, ont été choisies pour permettre à l'utilisateur de saisir le bac en glissant ses doigts, éventuellement protégés par des gants, à l'intérieur des mailles, et de manipuler le bac à deux mains, espacées d'environ une largeur d'épaules. Grâce à cette configuration, l'utilisateur peut manipuler sans aide extérieure la charge naturellement équilibrée, dans de bonnes conditions ergonomiques. Pour rendre la manipulation encore plus confortable, la nervure servant de prise présente une section arrondie dans la zone de préhension.The mesh of crossed ribs which constitutes the bottom of the tray comprises, in two symmetrical locations with respect to the geometric axes of the bottom, meshes whose spacing is substantially wider than the set of surrounding meshes. These particular mesh sizes, and their location, were chosen to allow the user to grasp the tray by sliding his fingers, possibly protected by gloves, inside the mesh, and manipulate the two-handed tray , spaced about one shoulder width apart. Thanks to this configuration, the user can manipulate without load the load naturally balanced, in good ergonomic conditions. To make the handling even more comfortable, the gripping rib has a rounded section in the gripping area.
Afin de conférer à la première couche de bacs, au fond de la cavité, la même résistance mécanique qu'aux couches supérieures de l'ouvrage, il est nécessaire d'offrir auxdits bacs les mêmes conditions d'appui et de calage qu'aux couches supérieures. Selon un mode de réalisation particulier, ces fonctions d'appui et de calage initiales sont obtenues par l'emploi de plateaux d'allure générale plane, aptes à s'emboîter sous la face inférieure des bacs, à raison d'un plateau par bac, s'interposant par conséquent entre la (les) membrane(s) du fond de la cavité et les plateformes de support inférieures des bacs. Ces plateaux présentent une aire totale d'appui nettement supérieure à la somme des aires des surfaces d'appui inférieures des bacs, et sont par conséquent aptes à réduire le risque d'endommagement par poinçonnement de la (des) membrane(s).In order to confer on the first layer of tanks, at the bottom of the cavity, the same mechanical strength as in the upper layers of the structure, it is necessary to offer the said tanks the same conditions of support and rigging as upper layers. According to a particular embodiment, these initial support and stalling functions are obtained by the use of generally flat trays, able to fit under the underside of the trays, at the rate of one tray per tray , therefore interposed between the (the) membrane (s) of the bottom of the cavity and the lower support platforms bins. These plates have a total bearing area much greater than the sum of the areas of the lower bearing surfaces of the tanks, and are therefore able to reduce the risk of punching damage to the membrane (s).
Selon un mode de réalisation particulier, le plateau comprend au moins une plateforme de support supérieure périphérique, qui coopère avec la pluralité de plateformes de support inférieures du bac. Le format rectangulaire du plateau offre des dimensions légèrement inférieures aux dimensions du cerclage des parois latérales du bac, ce qui permet d'encastrer le plateau à l'intérieur du cerclage, réalisant en cela un centrage d'une pièce par rapport à l'autre. La plateforme de support supérieure périphérique du plateau offre, par analogie avec les plateformes de support supérieures des bacs, des trous aptes à coopérer avec les plots des plateformes de support inférieures des bacs. Ces encastrements complémentaires ont pour fonction d'empêcher les parois de liaison des bacs de glisser vers l'extérieur du rectangle de sustentation sous les efforts combinés de compression et de flambement, subis en situation de service. Dans cette position d'assemblage, les colonnes des bacs sont en appui sur la surface des plateaux, afin de transmettre la charge au sol.According to a particular embodiment, the plate comprises at least one peripheral upper support platform, which cooperates with the plurality of lower support platforms of the tray. The rectangular format of the tray has dimensions slightly smaller than the dimensions of the strapping of the side walls of the tray, which allows to embed the tray inside the strapping, thereby achieving a centering of one piece relative to the other . The platform of upper peripheral support of the plate offers, by analogy with the upper support platforms bins, holes adapted to cooperate with the pads of the lower support platforms bins. These complementary recesses have the function of preventing the connecting walls of the bins from sliding outwardly of the support rectangle under the combined efforts of compression and buckling, suffered in service situation. In this assembly position, the columns of the bins are supported on the surface of the trays, in order to transmit the load to the ground.
Pour faciliter la constitution de la première couche de l'ouvrage, le plateau peut avantageusement être fixé au bac en position finale d'assemblage avant sa mise en place définitive au fond de la cavité de rétention. La manipulation des bacs de la première couche, et de leur plateau associé se fait par conséquent en simultané, résultant en une plus grande facilité de positionnement et un gain de temps. Selon un mode de réalisation particulier, la fixation des plateaux sous les bacs se fait par accrochage de type « clips », au niveau de l'extrémité des colonnes des bacs munies à cet effet d'un trou correspondant.To facilitate the constitution of the first layer of the structure, the plate can advantageously be fixed to the container in final assembly position before its final placement in the bottom of the retention cavity. The handling of the trays of the first layer, and their associated tray is therefore simultaneous, resulting in greater ease of positioning and a gain of time. According to a particular embodiment, the fixing of the trays under the trays is done by hooking type "clips" at the end of the columns of the bins provided for this purpose with a corresponding hole.
L'invention sera mieux comprise, et d'autres buts, détails, caractéristiques et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative détaillée qui va suivre, d'un mode de réalisation de l'invention donné à titre d'exemple purement illustratif et non limitatif, en référence aux dessins schématiques annexés.The invention will be better understood, and other objects, details, features and advantages thereof will appear more clearly in the following detailed explanatory description of an embodiment of the invention given as a purely illustrative and non-limiting example, with reference to the accompanying schematic drawings.
Sur ces dessins :
- la
figure 1 est une vue en perspective de deux bacs de rétention d'eau selon un mode de réalisation de l'invention, emboîtés l'un dans l'autre en position pour leur transport ou leur stockage ; - la
figure 2 est une vue en perspective des deux bacs de lafigure 1 , positionnés l'un sur l'autre pour la réalisation d'un tampon de rétention d'eau ; - la
figure 3 est une vue de dessus d'un des bacs de lafigure 2 ; - la
figure 4 est une vue de détail, de dessous, des bacs de lafigure 2 , empilés l'un sur l'autre ; - la
figure 5 est une vue partielle de dessous du bac de lafigure 3 ; - la
figure 6 est une vue en perspective d'un plateau de soutien de bac, selon un mode de réalisation de l'invention - la
figure 7 est une vue de dessus d'un dispositif d'accrochage permettant d'accrocher les deux bacs de lafigure 1 quand ils sont disposés côte à côte, - la
figure 8 est une vue en perspective d'un raccord fixé sur la paroi latérale du bac de lafigure 3 , - la
figure 9 est une vue en perspective de dessus de plusieurs bacs de lafigure 2 formant la face supérieure d'un tampon hydraulique. - La
figure 10 est une vue en perspective de plusieurs bacs, installés selon l'option « visitable » ou « hydrocurable », avec l'accessoire correspondant.
- the
figure 1 is a perspective view of two water retention tanks according to one embodiment of the invention, nested one in the other in position for their transport or storage; - the
figure 2 is a perspective view of the two bins of thefigure 1 positioned one on the other for producing a water retention pad; - the
figure 3 is a top view of one of the bins of thefigure 2 ; - the
figure 4 is a detail view, from below, of the bins of thefigure 2 stacked one on the other; - the
figure 5 is a partial view from below the ferry of thefigure 3 ; - the
figure 6 is a perspective view of a tray support tray, according to an embodiment of the invention - the
figure 7 is a top view of an attachment device for hanging the two bins of thefigure 1 when they are arranged side by side, - the
figure 8 is a perspective view of a connector attached to the side wall of the tank of thefigure 3 , - the
figure 9 is a perspective view from above of several bins of thefigure 2 forming the upper face of a hydraulic buffer. - The
figure 10 is a perspective view of several bins, installed according to the option "visitable" or "hydrocurable", with the corresponding accessory.
En se référant aux
Les bacs 1 ont une forme sensiblement parallélépipédique, comprenant une paroi de fond 2, conventionnellement désignée comme la partie supérieure du bac (du fait de sa position lorsque les bacs sont empilés comme sur la
La structure des parois latérales 3 est décrite plus en détail en références aux
Chaque paroi latérale 3 comprend en outre une pluralité de parois de liaison 30 reliant les plateformes de support supérieures 9 aux plateformes de support inférieures 8 en reprenant les efforts de compression. Comme le montre la
La portion intérieure 32, la portion d'épaisseur 31 et la portion extérieure 33 des parois de liaison 30 sont inclinées de manière à former les piliers 4 qui, comme dit précédemment, sont tronconiques afin de permettre un emboîtement de plusieurs bacs 1 identiques comme sur la
Comme on peut le voir sur la
Les parois latérales 3 se rejoignent aux quatre angles et sont rattachées les unes aux autres par des piliers d'angle 5. Les faces supérieures et inférieures de ces piliers d'angle 5 sont agencées, de façon connue, de manière à permettre l'emboîtement des bacs 1 comme illustré sur la
A l'intérieur du volume central du parallélépipède, on voit des colonnes 6 qui s'étendent du fond 2 en direction de la face ouverte, et qui se terminent par un pied de colonne 7 sous la forme d'un épaulement inférieur plan, qui est parallèle au fond 2 et situé approximativement à la même hauteur que les plateformes inférieures 8 des piliers 4 des parois latérales 3 et que celles des piliers d'angle 5.Inside the central volume of the parallelepiped, we see
Les parties inférieures des parois latérales 3 sont enserrées, et tenues les unes aux autres, par un cerclage 10, qui assure la cohésion des piliers 4 et des piliers d'angle 5, et garantit ainsi l'absence d'un grand écart des parois latérales 3 lorsque le bac 1 repose sur sa partie ouverte et que des charges importantes sont appliquées dessus.The lower parts of the
En référence à la
On distingue également sur la
En référence à la
En référence à la
En se référant à la
Sur la
La
La
Bien que l'invention ait été décrite en relation avec un mode de réalisation particulier, il est bien évident qu'elle n'y est nullement limitée et qu'elle comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci entrent dans le cadre de l'invention.Although the invention has been described in connection with a particular embodiment, it is obvious that it is not limited thereto and that it comprises all the technical equivalents of the means described and their combinations if they are within the scope of the invention.
Claims (17)
dans lequel chaque paroi de liaison comprend une portion d'épaisseur (31) qui relie un côté d'épaisseur (38) d'une plateforme de support supérieure (9) à un côté d'épaisseur (39) d'une plateforme de support inférieure (8),
et dans lequel chaque paroi de liaison comprend en outre une portion intérieure (32) reliant le côté de la paroi de fond (2) à un côté intérieur (36) d'une plateforme de support inférieure (8), et une portion extérieure (33) s'étendant à partir d'un côté extérieur (37) d'une plateforme de support supérieure (9).Container (1) for water retention for constituting, by assembly of tanks, a water retention device buried in the ground, said tank comprising a substantially rectangular bottom wall (2) and four lateral walls (3) respectively connected to the sides of the bottom wall, characterized in that each side wall comprises:
wherein each connecting wall comprises a thickness portion (31) which connects a thickness side (38) of an upper support platform (9) to a thickness side (39) of a support platform lower (8),
and wherein each connecting wall further comprises an inner portion (32) connecting the side of the bottom wall (2) to an inner side (36) of a lower support platform (8), and an outer portion ( 33) extending from an outer side (37) of an upper support platform (9).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PL09305277T PL2107172T3 (en) | 2008-04-02 | 2009-04-01 | Water retention box |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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FR0801833A FR2929630B1 (en) | 2008-04-02 | 2008-04-02 | WATER RETENTION BIN FOR CONSTITUTING BY ASSEMBLY OF BINS A DEVICE FOR RETENTION OF WATER BURIED IN THE SOIL |
Publications (2)
Publication Number | Publication Date |
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EP2107172A1 true EP2107172A1 (en) | 2009-10-07 |
EP2107172B1 EP2107172B1 (en) | 2013-03-13 |
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Application Number | Title | Priority Date | Filing Date |
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EP09305277A Not-in-force EP2107172B1 (en) | 2008-04-02 | 2009-04-01 | Water retention box |
Country Status (7)
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US (1) | US8292117B2 (en) |
EP (1) | EP2107172B1 (en) |
CA (1) | CA2659554C (en) |
ES (1) | ES2405806T3 (en) |
FR (1) | FR2929630B1 (en) |
PL (1) | PL2107172T3 (en) |
RU (1) | RU2495199C2 (en) |
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- 2009-03-31 RU RU2009111517/13A patent/RU2495199C2/en not_active IP Right Cessation
- 2009-04-01 ES ES09305277T patent/ES2405806T3/en active Active
- 2009-04-01 EP EP09305277A patent/EP2107172B1/en not_active Not-in-force
- 2009-04-01 US US12/416,568 patent/US8292117B2/en not_active Expired - Fee Related
- 2009-04-01 PL PL09305277T patent/PL2107172T3/en unknown
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DE102010028607A1 (en) * | 2010-05-05 | 2011-11-10 | Fränkische Rohrwerke Gebr. Kirchner Gmbh & Co. Kg | Space-saving arrangement of rigid components and this enabling Rigolenkomponente |
EP2980328A1 (en) | 2014-08-01 | 2016-02-03 | Otto Graf GmbH Kunststofferzeugnisse | Seepage block element, seepage block and transport unit |
WO2016015786A1 (en) | 2014-08-01 | 2016-02-04 | Otto Graf Gmbh Kunststofferzeugnisse | Percolation block element, percolation block, and transport unit |
US9896832B2 (en) | 2014-08-01 | 2018-02-20 | Otta Graf GMBH Kunststofferzeugnisse | Percolation block element, percolation block, and transport unit |
US20200165556A1 (en) * | 2017-05-17 | 2020-05-28 | Johann Wolfgang Goethe-Universitat Frankfurt Am Main | Method and apparatus for centrifugation-based accumulation and collection of cell cultures |
Also Published As
Publication number | Publication date |
---|---|
US20090250369A1 (en) | 2009-10-08 |
PL2107172T3 (en) | 2013-08-30 |
US8292117B2 (en) | 2012-10-23 |
CA2659554C (en) | 2014-05-20 |
FR2929630A1 (en) | 2009-10-09 |
EP2107172B1 (en) | 2013-03-13 |
FR2929630B1 (en) | 2011-11-25 |
RU2009111517A (en) | 2010-10-10 |
RU2495199C2 (en) | 2013-10-10 |
CA2659554A1 (en) | 2009-10-02 |
ES2405806T3 (en) | 2013-06-03 |
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