EP1614812B1 - Geo-Verbundmembran für Drainage und dessen Herstellungsverfahren - Google Patents

Geo-Verbundmembran für Drainage und dessen Herstellungsverfahren Download PDF

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Publication number
EP1614812B1
EP1614812B1 EP05291399A EP05291399A EP1614812B1 EP 1614812 B1 EP1614812 B1 EP 1614812B1 EP 05291399 A EP05291399 A EP 05291399A EP 05291399 A EP05291399 A EP 05291399A EP 1614812 B1 EP1614812 B1 EP 1614812B1
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EP
European Patent Office
Prior art keywords
geocomposite
mini
drains
needle
sheet
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.)
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EP05291399A
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English (en)
French (fr)
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EP1614812A1 (de
Inventor
Yves Durkheim
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.)
Afitex International SAS
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Afitex International SAS
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Priority to PL05291399T priority Critical patent/PL1614812T3/pl
Publication of EP1614812A1 publication Critical patent/EP1614812A1/de
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Publication of EP1614812B1 publication Critical patent/EP1614812B1/de
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • E02B11/005—Drainage conduits

Definitions

  • the present invention relates to a drainage geocomposite applied to drainage, for example soils or creations of civil engineering, and its manufacturing process.
  • geocomposite materials for soil drainage or creations of civil engineering.
  • Such materials consist of draining geotextiles often including a geospacer all between two layers of geotextiles filtering.
  • the geospacer consists of annealed and perforated tubes, helical springs or an axis provided with fins, thus providing continuous passages for the drainage of the interstitial water.
  • the geocomposite may consist of a filtering layer and a draining layer, the geo-spotter being most often in a gusset between the two layers.
  • the layers, both draining and filtering are made of nonwoven fibers and are then bonded together either by gluing or by sewing cords that run along the geo-repellents to create the geocomposite.
  • the assembly by gluing can alter the filtering qualities of the geomaterial, some geocomposites are assembled with the method of needling.
  • a variant of this method is described in the patent US 5,475,904 .
  • This method comprises several steps.
  • a step of assembling two compounds for example a draining web and a filtering web
  • a step where the compounds are then driven to the needling machine and a step where they are bonded together.
  • a space is provided between the two compounds to be able after needling insert other materials including liquids which will then be cured.
  • Licences FR 2,746,424 and EP 0 962 754 describe geotextiles comprising at least one filtering layer and at least one draining layer assembled by this method of needling.
  • EP 0 962 754 between the two layers is an array of electrodes.
  • the patent FR 2,746,424 they are drains perforated uniformly over the whole periphery of the rings which are inserted between the two layers.
  • the object of the present invention is to overcome certain disadvantages of the prior art by proposing a geocomposite which has an internal shear strength such that it can be used in the drainage of steep slopes, whose filter faces have a uniform and constant porometry. and whose filtering quality is not impaired.
  • a geocomposite comprising a draining layer on which perforated annular perforated mini-drains are arranged parallel to one another, and at least one filtering sheet covering the perforated annular mini-drains, characterized in that the drainage layer and the layers Filtering agents are interconnected by the needling technique.
  • the assembly of the various elements constituting it is done by simultaneous passage of these different components in a machine needling.
  • the webs constituting the geocomposite are manufactured according to the nonwoven needle-punch technique.
  • the annealed mini-drains are perforated along two alternating axes at approximately 90 °.
  • each groove of a mini-drain is provided with two diametrically opposed perforations.
  • the mini-drains are located in spaces formed between the needled parts of the draining layer and at least one filtering layer.
  • the material consists of a filter sheet on which is fixed the entire draining sheet, mini-drains and filtering web.
  • the constituent materials of the various elements composing it are rot-proof materials.
  • spaces are formed in the needle board of the needling machine for the passage of pipes.
  • the needling machine is a simple typing machine.
  • the invention relates to a geocomposite consisting of at least two plies which have essentially different hydraulic and mechanical properties, and a plurality of geo-abrasives, as well as its manufacturing method.
  • the geocomposite (1) consists of a first sheet with filtering properties (30), this sheet is nonwoven needled. On this sheet is a tablecloth with draining properties (4), also nonwoven needled.
  • the two filter sheets (30) and draining (4) are interconnected by the needling technique (42).
  • On this draining layer (4) are arranged, parallel to each other, at selected distances depending on the destination of the geomaterial, annealed mini-drains (5) and perforated along two axes alternating at approximately 90 °.
  • Each groove (52) of a mini-drain (5) is provided with two perforations (51) diametrically opposed.
  • This layer of mini-drains (5) is covered with a filter mat (31) needled nonwoven.
  • the mini-drains (5) are resistant to compression, which allows the water to always be evacuated even when the geomaterial (1) is buried in the ground.
  • the filtering web (31) and the drainage layer (4) are also linked together by the needling technique (41). However, during the needling of these two plies (31, 4), spaces (53) are formed in which are located the mini-drains (5).
  • the mini-drains (5) are therefore related to the structure of the geomaterial (1) since they are already set up between the draining (4) and filtering (31) layers at the time of their needling.
  • the geocomposite (2) consists of a first sheet with draining properties (4), this sheet (4) is nonwoven needled. On this draining sheet (4) are arranged, parallel to each other, at selected distances, depending on the destination of the geomaterial (2), ringed mini-drains (5). This layer of mini-drains (5) is covered with a filter layer (31), also nonwoven needled.
  • the draining ply (4) and the filter ply (31) are interconnected by the needling technique (42). However, during the needling of the two plies (4, 31) constituting the geomaterial (2), spaces (53) are formed in which are located the mini-drains (5).
  • the various elements (30, 4, 5, 31) constituting the geocomposite (1, 2) according to any of the embodiments of the invention consist of rot-proof materials such as polypropylene.
  • the purpose of the filtering webs is to protect the drainage layer (4) from clogging with fine particles.
  • Such plies therefore have a porometry adapted to this function, as well as the draining ply to a porometry adapted to its function.
  • the assembly of the various constituent elements (30, 4, 5, 31) of the geocomposite (1, 2) according to the invention is done by simultaneous passage of these various components (30, 4, 5, 31) in a machine arranged at this effect to simplify the manufacture of the product.
  • the assembly method consists of driving the various components (4, 5, 31) of the material according to the invention from the respective rollers (40, 50, 300). These different components are superimposed as previously indicated: pipe assemblies (5) spaced apart on the draining ply (4) and the filtering layer (31) on the spaced pipe assemblies (5) and the draining ply (4).
  • the various components thus superimposed are then driven together by a set of drive members (6, 7) to the needling machine (8).
  • the needling machine (8) consists of a needle board (81) having a plurality of needles (82). Each needle (82) has a triangular section and is provided with barbs (821). These barbs (821) allow the constituent fibers of the different plies to intermingle with each other in order to achieve the connection between the plies.
  • the needles (82) of the needle board (81) must be pushed into the plies to be bonded.
  • the needles (82) are guided by a stripper (84) which is a piece provided with holes (841) allowing the needles (82) to pass through, and pass through the various layers of textiles and come to nest in a so-called anvil piece (83).
  • the needling machine (8) is said to be single strike because only a needle board (81) participates in the needling.
  • the anvil (83) has slats (831) separating the different rows of needles (82). Areas without needles (811) of width corresponding to the diameter of the pipes are formed in the needle board (81) to allow the passage of the pipes (5) thus avoiding needling and damaged.
  • the stripper (84) holds the textile webs during the return phase of the needles.
  • the inter-ply connection produced by needling gives the geocomposite (1, 2) according to the invention several qualities.
  • this method of bonding the plies offers a geocomposite having an increased resistance to internal shear. This resistance is such that the geomaterial (1, 2) according to the invention can be used for sloping slope drainage.
  • the needling connection also makes it possible to offer a geomaterial whose filter faces have a uniform and constant porometry.
  • a geomaterial whose connections are made by needling has an increased strength in laying and in use because the stresses are applied to the entire mass and not in a few specific points of the structure.
  • the filter quality of the geomaterial is not impaired as is the case with a connection by gluing or sewing.
  • the needling machine (8) can be double-strike with two needle boards (81) facing and interspersed.

Landscapes

  • 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)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)
  • Laminated Bodies (AREA)

Claims (10)

  1. Verfahren zur Herstellung eines Geoverbundstoffs (1, 2), der eine Drainage-Lage (4), auf der ringförmige perforierte Mini-Drainagen (5) parallel zueinander angeordnet sind, und wenigstens eine die Mini-Drainagen (5) bedeckende Filterlage (31) beinhaltet, dadurch gekennzeichnet, dass es Folgendes umfasst:
    - einen ersten Schritt des Übereinanderlegens der folgenden Komponenten (4, 5, 31):
    - wenigstens eine Drainagelage,
    - ringförmige Mini-Drainagen, die zwei Serien von mit einer Versatzkehle ausgeführten Perforationen aufweisen, einer ersten Serie von zwei diametral gegenüberliegend Perforationen, die in jeder zweiten Kehle ausgeführt sind, einer zweiten Serie von zwei diametral gegenüberliegenden Perforationen, die in jeder zweiten Kehle um 90 Grad in Bezug auf die erste Serie versetzt ausgeführt sind;
    - wenigstens eine Filterlage,
    - einen zweiten Schritt des Führens der so übereinander gelegten Komponenten mit Hilfe von Antriebsmechanismen (6, 7) zu einer Nadelmaschine (81), deren Nadelplatte (81) Räume (811) aufweist, die die Passage von Mini-Drainagen (5) zulassen,
    - einen dritten Schritt des Verbindens der Komponenten untereinander durch Benadeln.
  2. Verfahren zur Herstellung eines Geoverbundstoffs (1, 2) nach Anspruch 1, dadurch gekennzeichnet, dass es einen ergänzenden Vorbereitungsschritt des Verbindens einer zweiten Filterlage mit der Drainage-Lage beinhaltet.
  3. Geoverbundstoff (1, 2), der eine Drainage-Lage (4) beinhaltet, auf der ringförmige perforierte Mini-Drainagen (5) parallel zueinander angeordnet sind, und wenigstens eine Filterlage (31), die die ringförmigen perforierten Mini-Drainagen (5) bedeckt, dadurch gekennzeichnet, dass die ringförmigen Mini-Drainagen zwei Serien von mit einer Versatzkehle ausgeführten Perforationen beinhalten, wobei eine erste Serie von zwei diametral gegenüberliegenden Perforationen in jeder zweiten Kehle ausgeführt ist, wobei eine zweite Serie von zwei diametral gegenüberliegenden Perforationen in jeder zweiten Kehle mit einem Versatz von 90 Grad in Bezug auf die erste Serie ausgeführt ist.
  4. Geoverbundstoff (1, 2) nach Anspruch 3, dadurch gekennzeichnet, dass die verschiedenen Komponenten mit einer Nadelungstechnik verbunden sind.
  5. Geoverbundstoff (1, 2) nach Anspruch 3, dadurch gekennzeichnet, dass die Montage der verschiedenen ihn bildenden Elemente (30, 4, 5, 31) durch simultanes Leiten dieser verschiedenen Komponenten durch eine Nadelmaschine erfolgt.
  6. Geoverbundstoff (1, 2) nach Anspruch 3, dadurch gekennzeichnet, dass die den Geoverbundstoff (1, 2) bildenden Lagen (1, 2) mit einer Vliesstoff-Benadelungstechnik hergestellt werden.
  7. Geoverbundstoff (1, 2) nach Anspruch 3, dadurch gekennzeichnet, dass sich die Mini-Drainagen (5) in den Räumen (53) zwischen den benadelten Teilen der Drainagelage und wenigstens einer Filterlage (31) befinden.
  8. Geoverbundstoff (1, 2) nach Anspruch 3, dadurch gekennzeichnet, dass er von einer Filterlage (31) gebildet wird, auf der der Satz aus Drainage-Lage (4), Mini-Drainagen (5) und Filterlage (30) befestigt wird.
  9. Geoverbundstoff (1, 2) nach Anspruch 3, dadurch gekennzeichnet, dass die Materialien, aus denen die diversen Elemente (30, 4, 5, 31) bestehen, nichtfaulende Materialien sind.
  10. Verfahren zur Herstellung eines Geoverbundstoffs (1, 2) nach Anspruch 1, dadurch gekennzeichnet, dass die Benadelungsmaschine (8) eine Einfachschlagmaschine ist.
EP05291399A 2004-07-09 2005-06-29 Geo-Verbundmembran für Drainage und dessen Herstellungsverfahren Active EP1614812B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05291399T PL1614812T3 (pl) 2004-07-09 2005-06-29 Geokompozyt do drenażu i sposób jego wytwarzania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0407701A FR2872836B1 (fr) 2004-07-09 2004-07-09 Geocomposite de drainage et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP1614812A1 EP1614812A1 (de) 2006-01-11
EP1614812B1 true EP1614812B1 (de) 2013-02-27

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Application Number Title Priority Date Filing Date
EP05291399A Active EP1614812B1 (de) 2004-07-09 2005-06-29 Geo-Verbundmembran für Drainage und dessen Herstellungsverfahren

Country Status (7)

Country Link
US (1) US7618213B2 (de)
EP (1) EP1614812B1 (de)
CA (1) CA2573127C (de)
ES (1) ES2405996T3 (de)
FR (1) FR2872836B1 (de)
PL (1) PL1614812T3 (de)
WO (1) WO2006030076A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1888846A4 (de) 2005-05-24 2014-07-09 Presby Patent Trust Fluidleitung mit mehrlagigem teilbeschichtungsmaterial darauf
FR2948949B1 (fr) 2009-08-04 2011-08-05 Afitex Internat Geocomposite de drainage assurant un anti-colmatage biologique et son procede d'utilisation
FR2955596B1 (fr) * 2010-01-27 2013-04-26 Afitex Internat Geocomposite permettant la detection de fuite par un balai electrique et procede d'utilisation
CA2799511C (en) 2010-05-17 2017-11-14 Presby Patent Trust Apparatus and method for processing liquid waste
FR2968583B1 (fr) * 2010-12-14 2013-01-04 Afitex Int Systeme et procede de captage de composes dans les sols
CA2850028A1 (en) 2011-10-14 2013-04-18 Presby Patent Trust Liquid waste treatment apparatus
US9131922B2 (en) 2013-01-29 2015-09-15 Eigen, Inc. Calibration for 3D reconstruction of medical images from a sequence of 2D images
FR3014337B1 (fr) 2013-12-09 2015-12-18 Afitex Internat Systeme de traitement des sols, geocomposite pour un tel systeme et procede de consolidation de sols
CN103898884B (zh) * 2014-03-26 2015-11-18 重庆地质矿产研究院 一种排除滑坡体区梯田壤中流的方法
WO2023098998A1 (fr) 2021-12-02 2023-06-08 Afitex International Système et géocomposite de drainage de fluide

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US4490072A (en) * 1982-09-30 1984-12-25 Joseph Glasser Drainage device
FR2678547B1 (fr) * 1991-07-03 1995-03-10 Guy Leroy Procede et dispositif pour la realisation de nappes composites et composites obtenus.
FR2746424B3 (fr) * 1996-03-22 1998-05-22 Sommer Levasseur Produit geocomposite destine a des applications de drainage
EP0962754B1 (de) * 1997-12-24 2002-11-06 Tarkett Sommer S.A. Methode und Einrichtung zur Dichtigkeitsprüfung
BE1011763A3 (nl) * 1998-02-25 1999-12-07 E C C Naamloze Vennootschap Bodemlaag.
US6312190B1 (en) * 1999-04-20 2001-11-06 R. Robert Goughnour Method and apparatus for enhancement of prefabricated composite vertical drains
US6303033B1 (en) * 1999-09-30 2001-10-16 The United States Of America As Represented By The Secretary Of The Army Retrievable filter element for subsurface drainage
US6702517B2 (en) * 2001-08-10 2004-03-09 Advanced Drainage Systems, Inc. Pipe assembly for collecting surface water runoff and associated methods
US6648550B1 (en) * 2002-11-12 2003-11-18 Alton F. Parker Subterranean drainage device
US7465390B2 (en) * 2004-06-04 2008-12-16 Potts David A Low aspect ratio wastewater system

Also Published As

Publication number Publication date
EP1614812A1 (de) 2006-01-11
FR2872836A1 (fr) 2006-01-13
ES2405996T3 (es) 2013-06-04
CA2573127A1 (en) 2006-03-23
PL1614812T3 (pl) 2013-08-30
FR2872836B1 (fr) 2006-10-20
US20080075536A1 (en) 2008-03-27
WO2006030076A1 (fr) 2006-03-23
CA2573127C (en) 2012-05-29
US7618213B2 (en) 2009-11-17

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