EP0023871A1 - Material und Vorrichtung zum Drainieren und Verfahren zur Herstellung - Google Patents

Material und Vorrichtung zum Drainieren und Verfahren zur Herstellung Download PDF

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Publication number
EP0023871A1
EP0023871A1 EP19800401140 EP80401140A EP0023871A1 EP 0023871 A1 EP0023871 A1 EP 0023871A1 EP 19800401140 EP19800401140 EP 19800401140 EP 80401140 A EP80401140 A EP 80401140A EP 0023871 A1 EP0023871 A1 EP 0023871A1
Authority
EP
European Patent Office
Prior art keywords
drainage
reinforcement
drainage device
textile
lateral
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.)
Ceased
Application number
EP19800401140
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English (en)
French (fr)
Inventor
Joseph Glasser
François Lede
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.)
Cofrad A Responsabilite Dite Ltee Ste
Original Assignee
Cofrad A Responsabilite Dite Ltee Ste
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 Cofrad A Responsabilite Dite Ltee Ste filed Critical Cofrad A Responsabilite Dite Ltee Ste
Publication of EP0023871A1 publication Critical patent/EP0023871A1/de
Ceased 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

Definitions

  • the present invention relates to a material allowing the production of a drainage device which can be used to collect and evacuate water from a ground as well as to the process for manufacturing this material.
  • this device has drawbacks which make it difficult to use in practice and in particular in the case where it is necessary to place the drainage device in a substantially horizontal position. for example in the case where this device is applied to the drainage of a roadway, a track or a railway. In this case, in fact, the drainage device is subjected to significant crushing forces which would cause its deterioration.
  • the main object of the invention is therefore the production of a material and of a drainage device which allow use in any position even in the case where the device must be able to be subjected to a significant crushing force perpendicularly to his plan.
  • the invention also relates to such a drainage device which is much simpler to manufacture than devices of known type and which makes it possible to ensure both the drainage of groundwater without any risk of clogging even in the long term. while playing the role of a watertight screen preventing any flow from one side to the other of the drainage device.
  • the drainage material of the invention comprises an internal reinforcement of generally flat shape ensuring the channeling of water from the basement and made of a waterproof material.
  • the frame is covered on both sides by a filter layer.
  • the internal frame has a multitude of bosses and corresponding cells, the summits of which come into contact with the two aforementioned filter layers so as to define two sets of sinuous channels for the passage of water from the basement. cooperating respectively with one of the aforementioned filter layers.
  • Each of these sets of channels is separate from the other. together by the watertight reinforcement so that the water in the basement after having passed through the filtering layer and thus being freed of any fine particle of earth is channeled under the action of gravity by the internal reinforcement and cannot pass through the latter thus not running the risk of escaping from the drainage device.
  • the various bosses and corresponding cells are preferably arranged in staggered rows which allows both easy manufacture and great resistance to the crushing of the whole.
  • the filter layers are advantageously produced by means of woven or non-woven textile sheets based on long synthetic fibers resistant to the action of chemical agents possibly carried by groundwater.
  • the fixing of the textile layers on the tops of the bosses of the internal reinforcement can be done by any suitable means. This fixing is preferably carried out by gluing.
  • the tops of the bosses which also form the bottoms of the corresponding cells are preferably substantially planar.
  • the textile layers may not be glued to the tops of the reinforcements, the surrounding terrain then alone providing the pressure necessary for contact.
  • the drainage device according to the invention produced by means of the aforementioned drainage material further comprises at least one drainage pipe perforated on a part of the surface and surrounded on its periphery by lateral end portions of the two aforementioned filter layers.
  • the internal reinforcement of the drainage material according to the invention advantageously has a width less than that of the two filter layers which therefore each have a lateral portion free of internal reinforcement.
  • the perforated drainage pipe can therefore be easily threaded inside the flexible duct formed by the two aforementioned lateral portions, the free edges of which can be suitably secured by any suitable means.
  • the drainage pipe thus collects the water coming from all the channels of the internal reinforcement and evacuates it by its given portion of perforation playing the role of evacuation pipe.
  • the free edges of the two lateral portions intended to surround the drainage pipe are secured by a seam line.
  • the edges of the two filter layers are more preferably connected to each other for example by means of seam lines so as to completely enclose the internal reinforcement.
  • the aforementioned drainage pipe can be located approximately in the extension of the plane of the internal reinforcement.
  • the internal reinforcement can, on the contrary, extend and come into tangential contact with the drainage pipe, the textile layers enclosing the assembly.
  • additional drainage means are provided which are arranged opposite the aforementioned drainage pipe with respect to the internal reinforcement and substantially parallel to said pipe. These additional drainage means are arranged substantially horizontally near the surface of the ground so as to collect the runoff water.
  • the internal reinforcement disposed substantially vertically, and the drainage pipe, ensure the drainage and evacuation of the water as before.
  • Such additional drainage means can be constituted by gravel placed over a certain height of the order of 10 cm. They may also include a second drainage pipe, this time perforated over its entire surface and enclosed by the aforementioned textile layers.
  • the second drainage pipe is arranged in the vicinity of the ground surface and parallel to the aforementioned first drainage pipe.
  • each filtering layer may have at least one lateral portion free of internal reinforcement on the edge of the reinforcement.
  • the entire drainage device can then be constituted by the assembly of several identical elements via said respective portions of each of the elements with a certain overlap.
  • the elements can be arranged superimposed on the drainage pipe or side by side depending on the applications.
  • the invention also relates to a process for the continuous production of a drainage material.
  • a process for the continuous production of a drainage material According to this process, one starts from a flat sheet of thermoplastic material wound in a coil. We first of all raise the temperature by heating the flat sheet in order to make it more malleable. It is then passed between two calendering rollers having on their periphery a plurality of fingers which deform the thermoplastic sheet passing between said rollers. A textile sheet is then fixed, for example by gluing to the major part of each face of the continuous strip of honeycomb reinforcement thus obtained, leaving a lateral portion of said sheets on one or more of the lateral sides of the continuous honeycomb strip textiles extending beyond the edge or edges of the honeycomb reinforcement.
  • the continuous strip of drainage material is then finished by making seam lines so as to possibly subject the respective edges of the two textile sheets.
  • a preferred method is connected together the outer edges of two lateral portions of textile sheets by means of a seam line so as to leave a longitudinal pocket intended to allow the mounting of a drainage pipe by sliding inside from said pocket.
  • the drainage device of the invention comprises a drainage material referenced 1 as a whole and a drainage pipe 2 provided on the upper part of its periphery with perforations 3.
  • the drainage material comprises an internal reinforcement 4 of generally planar shape produced from a sheet of thermoplastic material of suitable thickness and waterproof.
  • This sheet has a honeycomb structure constituted by a multitude of bosses 5 and corresponding cells 6.
  • the various bosses and cells have flattened vertices of substantially circular shape as can be seen in FIG. 2.
  • the junction surfaces between a vertex 5 and a neighboring cell 6, if one considers one of the faces of the frame 4, have curved shapes resulting as will be seen from the manufacture of said frame.
  • the different bosses 5 are arranged as seen in FIG. 2 in rows and staggered thus defining sinuous passages materialized by the arrows 7 in FIG. 2 the water tending to flow each time from a top 5 towards the hollow of a cell 6.
  • the internal frame 4 is covered on its two faces by a filtering layer 8, 9 each consisting of a sheet of nonwoven of long synthetic fibers fixed by gluing to the substantially flat tops of the various external bosses 5.
  • the glued surfaces are referenced 5a. It will of course be understood that this fixing could be done by any other means such as heat sealing or equivalent.
  • the nonwoven could be replaced by a textile in woven material insofar as this textile would be able to play the role of filter thus avoiding the passage of fine particles of soil which would risk clogging the drainage device.
  • the filter sheets 8 and 9 are secured by a seam line 10 to the upper part in FIG. 3 and 11 at the lower part thus completely surrounding the internal frame 4.
  • the total width of the internal frame 4 is less than that of the two filter layers 8 and 9, which therefore each have a lateral portion 12, 13 whose extreme edges are secured by means of a seam line 14 so to define a pocket which can receive as seen in figs. 2 and 3 the drainage pipe 2.
  • the dimensions of said pocket are therefore chosen so as to be suitably adapted without excessive tightening to the outside diameter of the drainage pipe 2.
  • honeycomb structure of the internal frame 4 with its multiple bosses arranged in staggered rows makes it possible to use the drainage device in an almost horizontal position even in the case where it risks being subjected to significant crushing forces the particular structure of the internal reinforcement 4 making it possible, even in this case, to ensure excellent resistance to the drainage device of the invention.
  • the material of the invention can easily be manufactured continuously on the installation shown schematically in FIG. 1 in section.
  • a flat sheet of thermoplastic material 16 is unwound from a reel 17, then is subjected to the action of a heating device 18.
  • the sheet of thermoplastic material 16 is subjected to the action of two calendering rollers 19 and 20 comprising on their periphery a plurality of pins or fingers of substantially cylindrical shape and referenced 21. These fingers are arranged so as to produce the various bosses and cells 5 and 6 in staggered rows visible in fig. 2 and 3. Note the great simplicity of the manufacturing method of the invention which allows by the simple use of forming fingers of substantially cylindrical structure to achieve the honeycomb structure shown in FIGS. 2 and 3.
  • the ends of the fingers 21 in fact cause a deformation of the thermoplastic material so that the surfaces bordering the respective vertices of the different bosses 5 have a concave shape 22 as can be seen in FIG. 3 which is attached to a corresponding convex shape 22a of the neighboring cell 6.
  • a suitable spacing of the fingers 21 of the two calendering rollers 19 and 20 makes it possible to adapt the inclination of these connecting surfaces 22 and 22a.
  • the continuous honeycomb strip 23 coming from the calendering rollers passes between two sizing rollers 24 which deposit bosses on the two faces of the planar tops.
  • the blister strip 23 has a suitable adhesive.
  • Two continuous strips of textile material 25 and 26 are unwound at the same speed as the thermoplastic sheet 16 from the reels 27 and 28 and applied by means of pressing and gluing rollers 29 and 30 to the two faces of the continuous honeycomb strip 23. The resulting material is wound on the reel 31.
  • continuous textile bands 25 and 26 are used which are wider than that of the honeycomb band 23 which is glued onto all the tops of the bosses of its two surfaces.
  • FIG. 4 A first variant is shown in FIG. 4.
  • the drainage pipe 2 will be arranged along the length of a first drainage element 32 comprising on its two lateral edges portions exceeding the width of the internal frame 4.
  • the first lateral portion 33 makes it possible to define a pocket for the insertion of the drainage pipe 2.
  • the second lateral portion 34 cooperates with a corresponding lateral portion of a second drainage element 35 identical to the element 32.
  • the two sheets which constitute the lateral portion 34 cover the two corresponding sheets of the lateral portion of the element 35.
  • a third element 36 identical to the previous two is still connected in the same way with overlapping by its lateral portion to that of the element 35.
  • the fixings of the various elements between them can be carried out in any suitable manner and for example by means of seams securing the different respective lateral portions of the filter layers of each of the elements.
  • the fastening lines or seam lines will be parallel to the longitudinally disposed drainage pipe.
  • the drainage device comprises a drainage pipe 2 arranged on the short side of three drainage elements 37, 38 and 39 which are fixed respectively along fixing or sewing lines perpendicular to the axis of the drainage pipe 2
  • the lateral portions of each of the drainage elements 37 to 39 overlap each other and thus ensure the fixing of the assembly for example by means of seam lines.
  • the drainage device is preferably placed substantially vertically, the covering of the various elements taking place by their lateral portions made of textile material.
  • Fig. 6 illustrates another possibility of covering which can be used either for a vertical application, or preferably for an almost horizontal application of the drainage device.
  • FIGS. 2 and 3 there are shown three identical elements 40, 41 and 42 which have the structure illustrated in FIGS. 2 and 3 and whose internal frames 4 have been shown to simplify the drawing in the form of a simple zigzag. It should however be understood that the structure of these internal reinforcements 4 is the same as that shown in FIGS. 2 and 3, the filter sheets 8 and 9 being fixed for example by bonding to the major part of the two faces of said internal frames 4 by means of the substantially flat portions not shown in FIG. 6 of their respective bosses.
  • the whole of the drainage material in this embodiment, consists of the assembly of identical elements 40, 41 and 42 by covering the respective lateral portions.
  • the lateral border of the internal frame 4 of the element 41 comprises a zone 43 which is covered on its upper face by a lateral portion 44 of the textile sheet 8 which can extend over the entire zone 43 or possibly beyond the edge of the frame 4.
  • This lateral portion 44 is not fixed by gluing in the area 43 of the border and is free as can be seen in FIG. 6.
  • the internal reinforcement 4 is free of sheet ⁇ filtering textile, the edge of the sheet 9 stopping before zone 43.
  • the opposite edge of the frame 4 of the element 41 comprises a zone 45 produced in reverse, the lateral portion 46 not fixed by gluing of the textile sheet 9 located on the underside of the element 41 relative to the fig. 6.
  • the internal reinforcement 4 is free of textile sheet, the sheet 8 stopping before zone 45.
  • the total width of the filtering textile sheets 8 and 9 of element 41 is the same and substantially equal to the width of the internal frame 4.
  • the filter sheets 8 and 9 are however fixed on the two faces of the internal frame by being offset in a horizontal plane one by compared to each other.
  • the lateral border of the elements 40 and 42 is produced in the same way. It is therefore possible to assemble the different elements 40, 41 and 42 by engaging the respective lateral edges of two neighboring elements one inside the other.
  • the border area 43 of the element 41 engages by its bosses in the cells of the corresponding area of the element 40.
  • Such engagement is made possible by the absence of textile sheet on the underside of the internal frame 4 of the element 41 in this border area 43 as well as by the absence of bonding of the lateral portion 44 of the upper sheet 8 of the element 41.
  • the lateral portion 44 also covers the filtering layer 8 of the element 40 while the lateral portion 47 of the lower sheet 9 of the element 40 covers the filter sheet 9 of the element 41.
  • Fig. 7 schematically illustrates an application of a drainage device according to the invention in a substantially horizontal position.
  • the drainage device comprises a drainage material 48 obtained for example by the assembly of several identical elements as shown in FIG. 6.
  • Le. ceremonies further comprises two perforated drainage pipes 49 and 50 arranged laterally on the two edges of a strip of great length of said material for example as illustrated in FIGS. 2 to 5.
  • the drainage device is covered with an upper support sublayer 53 coated with the wearing layer 54 intended to produce a road surface, for example a road or motorway.
  • the drainage material 48 prevents the upwelling of water from the natural terrain 51 through the lower support sub-layer 52, which rise would be due to the thrusts resulting from the passage of vehicles on the roadway 54. Furthermore, if said roadway 54 is porous, the installation of the drainage material 48 prevents the passage of water from the upper sub-layer 53 towards the lower sub-layer 52 which prevents degradation of the support of the roadway.
  • the drainage water captured by the material 48 flows through the substantially vertical portions 48b and 48c in the direction of the two drainage pipes 49 and 50 through which it is discharged.
  • the thickness of the thermoplastic materials forming the internal reinforcement of the material of the invention can be chosen as the thickness of the filtering textile sheets according to the applications.
  • the drainage material of the invention can be used to make drainage devices which can be installed in all cases where traditional horizontal or vertical drainage methods are usually applied each time the water from a ground can be captured or discharged by gravity.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
EP19800401140 1979-08-03 1980-08-01 Material und Vorrichtung zum Drainieren und Verfahren zur Herstellung Ceased EP0023871A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7920037 1979-08-03
FR7920037A FR2462518A1 (fr) 1979-08-03 1979-08-03 Materiau de drainage et procede de fabrication

Publications (1)

Publication Number Publication Date
EP0023871A1 true EP0023871A1 (de) 1981-02-11

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EP19800401140 Ceased EP0023871A1 (de) 1979-08-03 1980-08-01 Material und Vorrichtung zum Drainieren und Verfahren zur Herstellung

Country Status (3)

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EP (1) EP0023871A1 (de)
FR (1) FR2462518A1 (de)
GB (1) GB2056236B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100332A4 (de) * 1982-02-05 1984-08-08 Nylex Corp Ltd Entwässerungsvorrichtung.
US4572700A (en) * 1983-03-31 1986-02-25 Monsanto Company Elongated bendable drainage mat
EP0124500A3 (en) * 1983-03-31 1986-03-19 Monsanto Company Elongated bendable drainage mat
US4662778A (en) * 1983-03-31 1987-05-05 Monsanto Company Drainage mat
WO1988002422A1 (fr) * 1986-10-03 1988-04-07 Induplast Bassin tampon de retention et de regulation des eaux naturelles a structure alveolaire
FR2606435A1 (fr) * 1986-11-10 1988-05-13 Fournier Christian Procede et dispositif pour le drainage des rives de toutes aires stabilisees de genie civil, ou des rives d'une construction
DE4005176A1 (de) * 1990-02-19 1991-08-22 Heinrich Willi Rosemeier Noppenfolie fuer das bauwesen
FR2660335A1 (fr) * 1990-04-03 1991-10-04 Afratex Sarl Dispositif de drainage des sols par materiaux textiles.
EP0499442A3 (en) * 1991-02-11 1993-08-04 Hepworth Building Products Limited Underground drainage
CN104988899A (zh) * 2015-06-17 2015-10-21 成都科创佳思科技有限公司 排水保护板

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0075993B1 (de) * 1981-09-25 1986-10-29 A.A.R.C. (Management) Pty. Limited Drainagerohr
US4787780A (en) * 1982-11-22 1988-11-29 American Colloid Company Method of waterproofing with a self-healing bentonite sheet material composite article
MX163336A (es) * 1984-11-29 1992-04-13 American Colloid Co Articulo de manufactura
US4840515A (en) * 1986-12-05 1989-06-20 Mirafi, Inc. Subterranean drain
GB2208465B (en) * 1987-08-11 1991-07-10 Hepworth Building Prod Underground drainage
GB2243108B (en) * 1990-02-14 1994-02-23 Ian Thomas Smith Railway tracks
US5263792A (en) * 1992-10-26 1993-11-23 W. R. Grace & Co.-Conn. Finned subterranean drainage device and method for fabricating the same
GB2303038B (en) * 1995-07-07 2000-02-23 James Paterson Izatt A verticle apparatus to drain and sub irrigate natural grass sportsfields
US7131788B2 (en) * 2000-02-10 2006-11-07 Advanced Geotech Systems High-flow void-maintaining membrane laminates, grids and methods
US12037275B2 (en) 2004-06-04 2024-07-16 Geomatrix Systems, LLC Wastewater leaching system
US7374670B2 (en) * 2005-06-03 2008-05-20 Potts David A High aspect ratio wastewater system
US20220275599A1 (en) * 2017-08-18 2022-09-01 Drff, Llc Forming, drainage and ventilation system for agriculture, irrigation and athletic fields
CN115748097A (zh) * 2022-09-29 2023-03-07 江苏鑫泰岩土科技有限公司 一种淤泥排水固结用滤布及双面渗滤排水体的制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101554A5 (de) * 1970-07-10 1972-03-31 Perstorp Ab
US3654765A (en) * 1971-02-10 1972-04-11 Research Corp Subterranean wall drain
FR2129456A5 (de) * 1971-03-11 1972-10-27 Smet Hugo
FR2195237A5 (de) * 1972-08-01 1974-03-01 Bayer Ag

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101554A5 (de) * 1970-07-10 1972-03-31 Perstorp Ab
US3654765A (en) * 1971-02-10 1972-04-11 Research Corp Subterranean wall drain
FR2129456A5 (de) * 1971-03-11 1972-10-27 Smet Hugo
FR2195237A5 (de) * 1972-08-01 1974-03-01 Bayer Ag

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CIVIL ENGINEERING ASCE, vol. 44, publié avril 1974, New York, US, K. HEALY "Prefabricated, fin underdrain promises faster soil drainage", pages 50-54. *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100332A4 (de) * 1982-02-05 1984-08-08 Nylex Corp Ltd Entwässerungsvorrichtung.
EP0307541A3 (en) * 1983-03-31 1989-04-05 Monsanto Company Drainage mat
EP0124500A3 (en) * 1983-03-31 1986-03-19 Monsanto Company Elongated bendable drainage mat
US4662778A (en) * 1983-03-31 1987-05-05 Monsanto Company Drainage mat
US4572700A (en) * 1983-03-31 1986-02-25 Monsanto Company Elongated bendable drainage mat
WO1988002422A1 (fr) * 1986-10-03 1988-04-07 Induplast Bassin tampon de retention et de regulation des eaux naturelles a structure alveolaire
FR2604737A1 (fr) * 1986-10-03 1988-04-08 Induplast Sa Bassin tampon de retention et de regulation des eaux naturelles a structure alveolaire
FR2606435A1 (fr) * 1986-11-10 1988-05-13 Fournier Christian Procede et dispositif pour le drainage des rives de toutes aires stabilisees de genie civil, ou des rives d'une construction
EP0267815A1 (de) * 1986-11-10 1988-05-18 Fournier S.A. Verfahren und Vorrichtung zur Dränage von befestigten Randstreifen im Tiefbau oder von Rändern einer Konstruktion
US4806043A (en) * 1986-11-10 1989-02-21 Fournier Drainage S.A. Method and device for drainage of borders of all stabilized civil engineering areas or of adjacent borders of a structure
DE4005176A1 (de) * 1990-02-19 1991-08-22 Heinrich Willi Rosemeier Noppenfolie fuer das bauwesen
FR2660335A1 (fr) * 1990-04-03 1991-10-04 Afratex Sarl Dispositif de drainage des sols par materiaux textiles.
EP0499442A3 (en) * 1991-02-11 1993-08-04 Hepworth Building Products Limited Underground drainage
CN104988899A (zh) * 2015-06-17 2015-10-21 成都科创佳思科技有限公司 排水保护板

Also Published As

Publication number Publication date
GB2056236A (en) 1981-03-18
FR2462518A1 (fr) 1981-02-13
FR2462518B1 (de) 1983-01-07
GB2056236B (en) 1983-03-09

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