WO2022167413A1 - Système de drainage d'eau de surface et son procédé de production - Google Patents

Système de drainage d'eau de surface et son procédé de production Download PDF

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Publication number
WO2022167413A1
WO2022167413A1 PCT/EP2022/052341 EP2022052341W WO2022167413A1 WO 2022167413 A1 WO2022167413 A1 WO 2022167413A1 EP 2022052341 W EP2022052341 W EP 2022052341W WO 2022167413 A1 WO2022167413 A1 WO 2022167413A1
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WO
WIPO (PCT)
Prior art keywords
drainage
seepage
bed
pipe
line
Prior art date
Application number
PCT/EP2022/052341
Other languages
German (de)
English (en)
Inventor
Walter Schiewe
Original Assignee
Aco Ahlmann Se & Co. Kg
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 Aco Ahlmann Se & Co. Kg filed Critical Aco Ahlmann Se & Co. Kg
Priority to EP22702974.1A priority Critical patent/EP4288611A1/fr
Publication of WO2022167413A1 publication Critical patent/WO2022167413A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • E03F3/046—Open sewage channels
    • 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
    • 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
    • E03F1/003—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells via underground elongated vaulted elements

Definitions

  • the invention relates to a surface drainage system according to the preamble of claim 1, a surface drainage system according to the preambles of claims 15 and 16 and a method for producing a surface drainage system according to the preamble of claim 18.
  • a further disadvantage of such known surface drainage systems, which divert water to the respective collection systems by means of linear drainage, is that the diverted water then no longer causes any problems at the actual precipitation site, but is also no longer available, for example for plants and their roots stands, so that plants that are planted and are to thrive in the area of an otherwise sealed surface even need extra watering.
  • the object of the invention is therefore to solve the above problems and to improve a previously known surface drainage system, which is suitable for draining sealed surfaces by means of linear drainage, in a cost-effective manner to the effect that overloading of collecting systems, such as sewers, receiving waters or Sewage treatment plants, is avoided by the discharged water and also to offer a method for realizing or for the production of such a surface drainage system.
  • this object is achieved by a surface drainage system with at least one channel and/or tubular linear drainage, with at least one seepage pipe being arranged in and/or on a seepage bed below the channel and/or tubular linear drainage and the drainage pipe with the linear drainage via at least one Connecting portion communicates and wherein a wall of the seepage pipe has at least partially openings through which water can flow from an interior of the seepage pipe into the seepage bed.
  • the water it is also possible for the water to flow directly from the line drainage into the seepage bed.
  • openings are advantageously provided, for example in the lower area of the line drainage.
  • the seepage pipe has openings through which water can flow from the inside of the seepage pipe through its wall to the outside of the seepage pipe, so that the water seeps out of the seepage pipe or seeps away.
  • the surface drainage system according to the invention can be used on the one hand to avoid unnecessary drainage of water to a water collection system, for example when precipitation is so slight that all the water flows through the linear drainage system into the seepage pipe and from there the seepage bed can flow into the surrounding soil, and on the other hand drainage can take place via a two-way system, namely on the one hand by discharging the water through the linear drainage to a collection station and on the other hand by seepage through the seepage pipe and the seepage bed close to the place of precipitation into the surrounding soil.
  • the surface drainage system according to the invention is optimally suited to simulating or reproducing a seepage of rainwater that is as natural as possible and at the same time preventing flooding due to insufficient water drainage through the linear drainage and thus its overloading as well as an overloading of any sewers, receiving waters or sewage treatment plants .
  • the latter is particularly Extremely advantageous in heavy rain events, since a significant part of the rainwater can be supplied to the ground according to the invention without prior derivation to a collection channel or other facility being necessary.
  • the percolation bed is formed from granular material, with crushed stone, gravel and/or possibly also rubble and/or chippings being suitable as granular material.
  • An essential point in producing the seepage bed is to use material that offers a large cavity volume in a fill, which in turn ensures good infiltration of rainwater. Relatively coarse crushed stone, coarse gravel or also coarse rubble and possibly also chippings are particularly suitable for this purpose, provided this is not too fine-grained.
  • Fine-grained and/or mixed-grain admixtures of such substances are to be explicitly avoided, as they tend to clog a necessary cavity and pore volume of the seepage bed and thus to close it, thereby impeding good infiltration of rainwater in the long term and, in the worst case, completely preventing it.
  • the soil itself or sand is also not a suitable seepage bed material due to its finely divided components, since even if these materials are used there is a risk of the cavity and pore volume of the seepage bed, which is necessary for proper seepage, becoming clogged, thereby destroying the sufficient water drainage capacity of the seepage bed could.
  • the materials used to manufacture the percolation bed can also be combined with one another. It is thus possible, for example, to form the seepage bed primarily on its underside and possibly at its edges, leaving out a trough with gravel, while the trough is filled with gravel and serves to support the seepage pipe. Since the gravel, unlike crushed stone or rubble, has rounded surfaces, any risk of damage to the drainage pipe from any edges of the crushed stone or rubble can be avoided in this way. This is particularly advantageous when the seepage pipe is made of plastic. When using a drain pipe made of concrete or polymer concrete, such a risk of damage to the drain pipe from broken material is significantly reduced. Furthermore, the seepage pipe can also be laid in or on naturally occurring gravel if this naturally occurring gravel has sufficient water drainage capacity and in this way offers sufficient infiltration capacity for the water flowing off, as is the case, for example, at least in part in the Kunststoff gravel plain.
  • the ballast fulfills a double function, namely that of a seepage bed in which the seepage pipe is embedded, on the one hand, and the function of a foundation for the linear drainage system on top, on the other.
  • This embodiment is particularly advantageous because it is possible to dispense with the separate production of a foundation for the linear drainage if the seepage bed consisting of crushed stone simultaneously assumes the function of such a foundation for the linear drainage. Such an embodiment thus entails a significant cost saving.
  • such a foundation which is made of a seepage bed formed from gravel, is also suitable for carrying or supporting not only one linear drainage system, but also several linear drainage systems arranged parallel to one another, for example.
  • the individual seepage pipes can either be fluidly connected to one another and/or, in the event of precipitation, can be supplied with water separately via one or more linear drainage systems.
  • the multiple seepage pipes, ie the seepage pipe and the other seepage pipes can run parallel to one another or in different directions.
  • the plurality of seepage pipes ie the seepage pipe and the further seepage pipes, can each run at least in sections in a straight line, in curves and/or arcs and/or in a circle.
  • the seepage bed corresponding to the seepage pipes, can be straight at least in sections, in curves and/or arches and/or circular.
  • the percolation bed can be branched out in a coherent manner or exist in the form of discrete percolation bed sections.
  • the surface drainage system has connecting sections between the at least one line drainage and the at least one seepage pipe, which are spaced apart in a range from 5 m to 50 m, preferably in a range from 10 m to 35 m m and particularly preferably in a range of 15 m to 25 m along the line drainage, through which water from the line drainage can flow into the drainage pipe(s).
  • a distance of 0.5 m to 200 m is also conceivable. These lengths can be easily managed by modern flushing vehicles.
  • the water to be drained can first be collected in the linear drainage system, drained and then fed to one or more seepage pipes at defined points.
  • This is advantageous because dirt can be separated at these defined points, for example to remove leaves and other dirt floating in the waste water, which could clog the seepage pipe or its openings over time, thereby improving the seepage capacity of the seepage pipe would deteriorate, which according to the invention, however, can be effectively prevented by the aforementioned dirt separator.
  • This can be carried out, for example, by conventional gully boxes or other known separators that are suitable for removing floating and suspended matter, for example, any oil residues or the like.
  • the seepage pipe runs essentially parallel to the line drainage. In this way, laying the seepage pipe and the line drainage together can be implemented particularly cost-effectively, since both can be done in one operation and in one shaft.
  • the seepage pipe can be encased by an open-pored, water-permeable textile fabric, for example a woven fabric or fleece, when it has been laid.
  • an open-pored, water-permeable textile fabric for example a woven fabric or fleece
  • the material of the percolation bed consists of at least partially sharp-edged material, as can be the case with freshly broken gravel or rubble, for example.
  • This can be achieved by encasing the seepage pipe with such a textile fabric
  • Such a simple measure can be used to reliably protect the seepage pipe from any damage caused by the material of the seepage bed, for example when the grate and the underlying line drainage and thus also the seepage bed are exposed to high loads and high sol pressure, for example due to heavy goods traffic.
  • the seepage pipe is preferably embedded in the seepage bed.
  • the seepage pipe can also be placed on a seepage bed, if this is desired. According to the invention, it is essential here that water escaping from the seepage pipe can then seep into the seepage bed located under the seepage pipe. In such a case, the seepage pipe can then also be provided with openings only on its underside and optionally on the side, through which the water can exit from the seepage pipe and flow into the seepage bed.
  • the seepage pipe generally preferably has a tubular cross-section, it can also have an angular, in particular rectangular or polygonal, cross-section if desired and depending on the respective circumstances. The latter depends on the respective installation conditions.
  • the openings according to the invention preferably extend over the entire wall circumference of the seepage pipe, but can also be limited, for example to the lower half of the seepage pipe when laid.
  • an overlay layer for example in the form of a plaster, concrete, in particular sub-concrete, or mortar layer, is advantageously arranged between the percolation bed and the line drainage.
  • Such an overlay serves on the one hand to compensate for any differences in height and unevenness in the upper boundary of the percolation bed and on the other hand, to provide a smooth and, in particular, clean surface for supporting the line drainage.
  • the surface drainage system according to the invention has at least one inlet section through which surface water can flow into the line drainage.
  • gratings in particular gratings, which cover a trough-shaped linear drainage, but also slots in an upper side of the linear drainage or other openings in the linear drainage open to the top can be used.
  • the connecting section is formed according to the invention, for example, by a connecting shaft or by a connecting pipe or is designed as an inlet box, with a filter and/or settling device being provided if necessary in order to remove contaminants that could clog the openings of the seepage pipe from the water running off.
  • the drainage pipe is preferably tubular, but may also have a cross-section other than tubular.
  • the seepage pipe according to the invention has a diameter in the range from 100 mm to 2000 mm, preferably in the range from 100 mm to 1000 mm and particularly preferably in the range from 100 mm to 800 mm.
  • large dimensions of the seepage pipe are preferred here, i. H.
  • Diameters from 500 mm upwards since such large-dimensioned seepage pipes, especially in the case of heavy rain events, also ensure a high retention capacity in addition to optimized seepage performance, so that a seepage pipe used according to the invention is not only used for very local seepage of surface water, but also for temporary storage of seepage water is suitable when the capacity of the surrounding soil is exhausted or no longer allows rapid seepage.
  • the seepage water can be temporarily stored in the seepage pipe and gradually seep out of the seepage pipe into the seepage bed and from there into the surrounding soil if this is possible again due to a falling surrounding water level, for example the groundwater level.
  • the surface drainage system in the case of existing surface water, to drain this locally under the sealed surface into the discharge soil.
  • the accumulated water accumulates in the seepage pipe, whereby the water level of the accumulated water can rise so much that it ultimately flows through the line drainage system with connection to one or more underground pipe(s) or into the sewage system.
  • a non-return valve for example, can be arranged in the connecting element connecting the line drainage and the seepage pipe.
  • the seepage pipe is made of a plastic, such as polyethylene or polypropylene, or of concrete or polymer concrete.
  • plastic has the significant advantage that it is relatively light and available at low cost and is easy to process.
  • concrete or polymer concrete makes sense, for example, if the seepage pipe is to have a high level of resistance, for example to breaking edges of the seepage bed material.
  • seepage pipes made of metal or other materials such as clay are also possible.
  • the seepage pipe preferably runs parallel to the line drainage, according to one embodiment of the invention it can also only run under the line drainage in sections, for example at an angle away from the line drainage. In this way, water is supplied to the seepage pipe from the linear drainage and then fed from the seepage pipe to the ground in the area to the side of the linear drainage.
  • a seepage pipe can communicate with other seepage pipes that stretch away from the first seepage pipe. The latter variants are extremely useful, for example, in large sealed areas such as parking lots.
  • the surface drainage system according to the invention has a modular structure, with the respective modules comprising at least one channel and/or tubular line drainage element, at least one seepage pipe element, optionally at least one connecting section element and at least one seepage bed element.
  • the individual modules of the surface drainage system according to the invention can in this case in the form of a unit be connected to each other and laid together, with the individual modules being connected to one another during laying.
  • the modules can be handled independently of one another. This is particularly advantageous when producing the seepage bed, since the seepage bed can be produced first, on which the seepage pipe can be placed in a further step or in which the seepage pipe can be embedded in a further step.
  • the seepage pipe in turn consists of respective short manageable seepage pipe modules which are connected to one another, in particular in a fluid-tight manner, when the seepage pipe is laid.
  • linear drainage which also consists of individual channel modules or pipe modules that are connected to one another in a fluid-tight manner when laid.
  • the fluid connection between the linear drainage and the seepage pipe consists of individual modules that are integrated into the linear drainage and the drainage pipe in such a way that a fluid-tight connection is established between the connecting element and linear drainage and between the connecting element and the drainage pipe.
  • the object according to the invention is also achieved in particular by a surface drainage system with at least one channel and/or tubular linear drainage, with at least one seepage bed being arranged below the channel and/or tubular linear drainage, with the drainage bed made of granular material, in particular of gravel, Gravel, rubble and/or grit is formed and the channel and/or tubular linear drainage via at least one connecting section, which is at least on an underside of the channel and/or tubular linear drainage in the form of at least one opening or through a connecting shaft or through a connecting pipe or is designed as an inlet box, with a filter and/or settling device being provided if necessary, so that water can flow out of the channel and/or tubular line drainage into the seepage bed.
  • a surface drainage system with at least one channel and/or tubular linear drainage, with at least one seepage bed being arranged below the channel and/or tubular linear drainage, with the drainage bed made of granular material, in particular of gravel, Gravel, rubble and/or grit is formed
  • the opening in the trough-shaped and/or tubular linear drainage can preferably be arranged on an underside of the linear drainage and/or be located at a respectively desired predefined height of the linear drainage in at least one lateral wall of the linear drainage and at this height as an optionally additional Serve overflow and / or flow for the water in the seepage bed and / or in the connecting section.
  • An important aspect of this point of the invention is that by arranging the line drainage directly on and/or in the percolation bed, precipitation water can seep away directly and locally at the location of the precipitation and when the line drainage is relocated directly on and/or in the Drainage bed, which, as a foundation for the linear drainage, fulfills a double function in addition to its drainage capacity, the costs of such a surface drainage system can be further reduced.
  • the seepage bed is connected to the drainage line at least in sections or at certain regular or irregular intervals along the drainage line in such a way that water can flow from the drainage line into the drainage bed, the outflowing water is distributed, with part of the water passing through the Line drainage and another part of the water, depending on the arrangement and number of openings in the line drainage and the connecting sections, is discharged directly into the seepage bed.
  • the seepage bed is arranged below the line drainage according to the invention leads to another advantage, which is that the water flowing out of the seepage pipe can seep into the seepage bed and, due to the very large inner surface of the large cavity volume of the seepage bed, has a cleaning effect experiences, in particular hydrophobic components of the outflowing water are removed by ad and absorption effects on the surface of the percolating bed material from the outflowing water.
  • the water cleaned in this way can then flow out of the seepage bed into the surrounding soil, with which the seepage bed in turn is in fluid communication. This cleaning effect also occurs when the water flows directly from the line drainage into the seepage bed.
  • a tube does not necessarily mean a tube with a circular cross-section. Rather, a tube according to the invention can also have an oval, elliptical or triangular and polygonal cross-section, optionally with rounded ones Corner areas have.
  • the linear drainage can in turn be designed, inter alia, as a trough channel, as an open channel, as a channel covered with a grate, as a slotted channel with one or more, in particular two, slot(s).
  • a surface drainage system with at least one line drainage, with at least one seepage bed being arranged below the line drainage, which is formed from granular material, in particular from crushed stone, gravel, rubble and/or grit and the line drainage via at least one communicates downwards essentially over at least half the width, preferably the entire width, of the open connecting section of the line drainage with the seepage bed, so that water from the line drainage can flow directly into the seepage bed.
  • the linear drainage is designed for this purpose as an inverted U-shaped and/or V-shaped drainage element opening downwards with at least lateral support elements that may be spaced apart from one another, which has a substantially flat and/or at least partially channeled and/or or a trough-shaped grate and/or a grate arranged at least in sections in a channel of the drainage element.
  • Such a surface drainage system is suitable for a suitable ballast bed, such as a substructure of railway tracks, due to its very high infiltration capacity for direct and immediate infiltration, so that water absorbed by the line drainage does not have to be drained horizontally, but directly vertically via a suitable infiltration bed that has a high to very high infiltration capacity, such as a gravel bed, can be fed directly to the groundwater.
  • a suitable ballast bed such as a substructure of railway tracks
  • such a drainage element advantageously does not require a free flow cross section, as is the case with conventional drainage channels.
  • the drainage element according to the invention can be designed like a trough and/or trough, similar to previous troughs, with a corresponding grating being able to be arranged in the trough or trough in this case.
  • the absorption capacity of the surface drainage system or drainage element according to the invention is matched to a respective infiltration capacity of the seepage bed, for example a gravel bed.
  • a further advantageous function of the drainage element according to the invention is therefore, on the one hand, to absorb traffic loads and, on the other hand, to absorb surface water from the corresponding traffic area in order to drain the water directly into the subsoil.
  • horizontal loads would also have to be taken into account in the design.
  • the entire system is connected for security via, for example, gullies, for control and as a connection to the usual sewage system.
  • Such a surface drainage system according to the invention advantageously has considerable advantages over previous channel systems, both in terms of production and installation effort.
  • the object of the invention is also achieved by a method for producing a surface drainage system according to the above statements, the method comprising the following steps:
  • the surface drainage system according to the invention can also consist of a combination of linear drainage, which drains directly into the seepage bed in sections, and linear drainage, in which the outflowing water is fed into the seepage bed at least in sections via a drainage pipe.
  • FIG. 1 shows a schematic cross-sectional view of a surface drainage system according to the invention
  • FIG. 2 shows a schematic view of a surface drainage system according to the invention according to FIG. 1 in a perspective view obliquely from above;
  • FIG. 3 shows a schematic representation of a surface drainage system according to the invention and its schematic mode of operation
  • FIG. 4 shows a schematic cross-sectional view of a further embodiment of the surface drainage system according to the invention.
  • FIG. 5 shows a schematic view of a further embodiment of the surface drainage system according to the invention in a perspective view.
  • FIG. 1 shows a schematic view of a surface drainage system 10 according to the invention.
  • the surface drainage system 10 comprises a line drainage 20 which is covered with a cover grating 100 towards any road surface.
  • the line drainage 20 is mounted on a support layer 90, which in turn is applied to a drainage bed 40 serving as a foundation.
  • a seepage pipe 30 is embedded in the seepage bed.
  • FIG. 2 shows a schematic view of the surface drainage system 10 shown in cross section in FIG. 1 in a perspective view obliquely from above. 2 shows an exemplary element of such a surface drainage system 10 composed of modules, such elements being connected to one another to form a finished surface drainage system 10 .
  • the element in turn includes a cover grating 100, which represents a conclusion to any roadway surface or other surface.
  • a line drainage element 20' which has a line drainage 20 in the form of a pipe.
  • the linear drainage element 20' can, for example, have a monolithic structure and can be installed as a whole.
  • the line drainage element 20 ′ lies on a support layer 90 which is arranged above a seepage element 40 ′, which forms the seepage bed 40 .
  • the lines shown in FIG. 2 do not represent exact delimitations of the percolation bed 40, but indicate such a percolation bed 40 only schematically.
  • a seepage pipe 30 is embedded in the seepage bed 40, which has openings 70 in its wall 60 over the entire circumference of the seepage pipe 30, through which, for example in the event of a rain event, water exits from the interior 80 of the seepage pipe and enters the seepage bed 40 can.
  • the seepage pipe 30 is shown in the form of a seepage pipe element 30 ′, with a plurality of seepage pipe elements 30 ′ being connected to one another to form the seepage pipe 30 when the seepage pipe 30 is laid.
  • FIG. 3 shows a schematic representation of a surface drainage system 10 according to the invention and its schematic mode of operation.
  • the water running off flows from left to right according to the graphic representation in the direction of the arrow, the arrows shown at the top in Fig. 3 representing respective elements 20' of the linear drainage 20, while the arrows shown at the bottom in Fig. 3 also show the direction of flow of the running leachate within the seepage pipe 30 show, as shown in FIG. 3 also from left to right.
  • the respective reference numerals 30 'in this case relate to respective elements of the seepage pipe 30, which together form the seepage pipe 30.
  • the seepage pipe 30 is embedded in a ballast bed, which on the one hand serves as a seepage bed 40 and also as a foundation for the line drainage 20 .
  • the seepage pipe 30 in turn has a wall 60 which has openings 70 through which water can flow from an interior 80 of the seepage pipe 30 into the seepage bed 40 .
  • the surface drainage system 10 comprises a line drainage 20 which is covered with a cover grating 100 towards any road surface.
  • the line drainage 20 is mounted on a support layer 90, which in turn is applied to a drainage bed 40 serving as a foundation.
  • the line drainage 20 has a water drainage opening 110 in the direction of the percolation bed.
  • linear drainage 20 consists of an inverted U-shaped drainage element that opens downwards, with supporting elements 120 spaced laterally from one another on one side, with linear drainage 20 or the drainage element on its upper side having an essentially planar design and with a traffic area 130 has a substantially aligned cover grating 100.
  • the support elements 120 of the linear drainage 20, or the drainage element ensure a reliable position of the linear drainage 20, or the drainage element, and due to their spacing also enable a lightweight construction of the surface drainage system according to the invention and, on the other hand, also advantageously allow water to exit from the surface drainage system according to the invention at the side , or line drainage 20.
  • the opening 110 of the linear drainage element 20 opens downwards over the entire width of the linear drainage element 20 to a seepage bed 40, so that water, in particular surface water, can flow from the traffic area 130 directly into and through the cover grating 100 of the linear drainage 20 and further directly into the sieker or gravel bed flow and can be supplied to a subsoil.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)

Abstract

L'invention concerne un système de drainage d'eau de surface (10) comprenant au moins une unité de drainage linéaire (20) sous forme d'un conduit et/ou d'un tuyau, sous l'unité de drainage linéaire en forme de conduit et/ou de tuyau, au moins un tuyau de drainage à fentes (30) étant disposé dans et/ou sur un lit de drainage (40), le tuyau de drainage à fentes (30) communique avec l'unité de drainage linéaire (20) par l'intermédiaire d'au moins une partie de liaison (50), et au moins certaines zones d'une paroi (60) du tuyau de drainage à fentes (30) présentent des ouvertures (70) à travers lesquelles de l'eau peut s'écouler à partir de l'intérieur (80) du tuyau de drainage à fentes (30) dans le lit de drainage (40) ; l'invention concerne également un système de drainage d'eau de surface comprenant au moins une unité de drainage linéaire sous forme d'un conduit et/ou d'un tuyau, au moins un lit de drainage étant disposé sous l'unité de drainage linéaire en forme de conduit et/ou de tuyau, le lit de drainage étant formé à partir d'un matériau granulaire, en particulier à partir de gravier, sable, gravats et/ou gravillons, et l'unité de drainage linéaire en forme de conduit et/ou de tuyau communiquent par l'intermédiaire d'au moins une partie de raccordement qui se présente sous forme d'au moins une ouverture sur un côté inférieur de l'unité de drainage linéaire sous forme de conduit et/ou de tuyau ou est fournie par un arbre de raccordement ou par un tuyau de raccordement ou sous forme d'une unité de puisard de vidange, un dispositif de filtration et/ou de sédimentation étant éventuellement prévu, et par conséquent de l'eau peut s'écouler hors de l'unité de drainage linéaire en forme de conduit et/ou de tuyau dans le lit de drainage ; l'invention concerne en outre un procédé de production d'un système de drainage d'eau de surface.
PCT/EP2022/052341 2021-02-04 2022-02-01 Système de drainage d'eau de surface et son procédé de production WO2022167413A1 (fr)

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EP22702974.1A EP4288611A1 (fr) 2021-02-04 2022-02-01 Système de drainage d'eau de surface et son procédé de production

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DE102021102651.2 2021-02-04
DE102021102651.2A DE102021102651A1 (de) 2021-02-04 2021-02-04 Oberflächenentwässerungssystem sowie Verfahren zum Herstellen eines solchen

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