EP1496162A1 - Formstabiles isolierendes geosynthetisches Erzeugnis - Google Patents

Formstabiles isolierendes geosynthetisches Erzeugnis Download PDF

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Publication number
EP1496162A1
EP1496162A1 EP03472005A EP03472005A EP1496162A1 EP 1496162 A1 EP1496162 A1 EP 1496162A1 EP 03472005 A EP03472005 A EP 03472005A EP 03472005 A EP03472005 A EP 03472005A EP 1496162 A1 EP1496162 A1 EP 1496162A1
Authority
EP
European Patent Office
Prior art keywords
layer
geosynthetic
fibers
structurally stable
fact
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.)
Withdrawn
Application number
EP03472005A
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English (en)
French (fr)
Inventor
Yuley Stoyanoff
Ivan Blagoev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP03472005A priority Critical patent/EP1496162A1/de
Publication of EP1496162A1 publication Critical patent/EP1496162A1/de
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/004—Sealing liners

Definitions

  • the present invention relates to a geosynthetic product, which finds application in creating roof, wall, bottom or any other insulating layers with low permeability for gases and liquids in the construction of structures of landfills, natural or artificial depots of waste products, natural or artificial depositories for substances, materials, products or articles, artificial water reservoirs, etc.
  • a geosynthetic product which consists of two textile layers, an upper one and a lower one, with a powdered filling, placed between them, that swells, when wetted by water, and acquires the ability of preventing to a great extent the penetration of liquids through its structure.
  • the two textile layers are interconnected to each other by tufted fibers drawn out of the upper layer by the method of "needle-punching", transferred through the powdered filling, and introduced into the lower layer.
  • the shortcoming of this method is that the tufted fibers passing through said powdered filling are not sufficient to build a stable fiber-skeleton structure that would prevent the filling from migrating during transportation or application. Furthermore, bonding between said upper and lower layers is weak and after swelling, even at small loads, a slippage may occur between these layers.
  • Another geosynthetic material is also known [2], which consists of two layers, a lower textile layer called a carrying sheet, on which a layer of bentonite in the form of granules is placed, and an upper layer called cover sheet. Said two textile layers are connected to each other by threads composed of synthetic fibers. Each thread forms bight portions or loops spreading through the upper surface of the cover sheet, through the bentonite layer and finally through the primary carrying sheet.
  • This product has the same shortcoming as the first one.
  • the connecting threads are monolithic, i. e. there is no uniform distribution of threads throughout the bentonite, and the reinforcement is anisotropic.
  • the objective of the present invention consists in creating an insulating geosynthetic flexible sheet-shaped product preliminarily composed of several layers interconnected to one another; said product containing a middle accumulating and reinforcing layer with stable structure that is invariable along its length; said structure being filled with a water-swelling powdered or granulated substance being in stable state before product application, but when the product is applied and wetted by water said substance swells up and forms a dispersively reinforced insulating structure.
  • the main variant of the present invention is an insulating geosynthetic flexible multilayer sheet-shaped product consisting of:
  • FIGs. 1 through 6 Various variants of the geosynthetic product are illustrated in Figs. 1 through 6.
  • the invention relates to an insulating geosynthetic flexible sheet-shaped product, which is preliminarily composed of several layers connected to one another; said product consisting of: a lower carrying permeable textile layer providing the total continuity of said insulating product; a middle accumulating and reinforcing layer passing partially through said lower layer or situated entirely above it, said middle layer having a stable structure of chaotically oriented and uniformly distributed synthetic staple fibers and being filled with a sufficient amount of water-swelling powdered or granulated substance later on, said water-swelling substance providing the required low permeability of the insulating product; an upper covering permeable layer realized either as a pseudo-layer by modifying the upper boundary surface or the upper boundary zone of said middle accumulating and reinforcing layer, or as a real autonomous layer connected to said middle layer.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
EP03472005A 2003-07-10 2003-07-10 Formstabiles isolierendes geosynthetisches Erzeugnis Withdrawn EP1496162A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03472005A EP1496162A1 (de) 2003-07-10 2003-07-10 Formstabiles isolierendes geosynthetisches Erzeugnis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03472005A EP1496162A1 (de) 2003-07-10 2003-07-10 Formstabiles isolierendes geosynthetisches Erzeugnis

Publications (1)

Publication Number Publication Date
EP1496162A1 true EP1496162A1 (de) 2005-01-12

Family

ID=33442921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03472005A Withdrawn EP1496162A1 (de) 2003-07-10 2003-07-10 Formstabiles isolierendes geosynthetisches Erzeugnis

Country Status (1)

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EP (1) EP1496162A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2065517A1 (de) * 2007-11-27 2009-06-03 Huesker Synthetic GmbH Dichtungsmatte, insbesondere für den Deichbau
WO2009115654A1 (fr) * 2008-03-17 2009-09-24 Fibroline France Structure composite fonctionnelle multicouche et procédé pour sa fabrication

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0491453A1 (de) * 1990-12-17 1992-06-24 Amcol International Corporation Dichtungsmaterial
US5221568A (en) * 1990-03-06 1993-06-22 Naue-Fasertechnik Gmbh & Co. Kg Water and/or oil-permeable sealing mat consisting substantially of a substrate layer, a layer of swellable clay and a cover layer
EP0555800A1 (de) * 1992-02-11 1993-08-18 NAUE-FASERTECHNIK GMBH & CO. KG Wasser- und/oder ölundurchlässige Dichtungsmatte aus quellfähigem Ton
EP0731220A1 (de) * 1995-03-07 1996-09-11 Peter Dipl.-Ing. Reither Bodenmatte
DE19649628A1 (de) * 1996-12-01 1998-06-04 Naue Fasertechnik Mineralischer Dichtungsaufbau, insbesondere für Oberflächendichtungen von Deponien, Altlastflächen, Industriebrachen und dergleichen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5221568A (en) * 1990-03-06 1993-06-22 Naue-Fasertechnik Gmbh & Co. Kg Water and/or oil-permeable sealing mat consisting substantially of a substrate layer, a layer of swellable clay and a cover layer
EP0491453A1 (de) * 1990-12-17 1992-06-24 Amcol International Corporation Dichtungsmaterial
EP0555800A1 (de) * 1992-02-11 1993-08-18 NAUE-FASERTECHNIK GMBH & CO. KG Wasser- und/oder ölundurchlässige Dichtungsmatte aus quellfähigem Ton
EP0731220A1 (de) * 1995-03-07 1996-09-11 Peter Dipl.-Ing. Reither Bodenmatte
DE19649628A1 (de) * 1996-12-01 1998-06-04 Naue Fasertechnik Mineralischer Dichtungsaufbau, insbesondere für Oberflächendichtungen von Deponien, Altlastflächen, Industriebrachen und dergleichen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2065517A1 (de) * 2007-11-27 2009-06-03 Huesker Synthetic GmbH Dichtungsmatte, insbesondere für den Deichbau
WO2009115654A1 (fr) * 2008-03-17 2009-09-24 Fibroline France Structure composite fonctionnelle multicouche et procédé pour sa fabrication

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