EP0945555B1 - Dichtungsmatte - Google Patents
Dichtungsmatte Download PDFInfo
- Publication number
- EP0945555B1 EP0945555B1 EP99105315A EP99105315A EP0945555B1 EP 0945555 B1 EP0945555 B1 EP 0945555B1 EP 99105315 A EP99105315 A EP 99105315A EP 99105315 A EP99105315 A EP 99105315A EP 0945555 B1 EP0945555 B1 EP 0945555B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- layer
- soluble
- sealing mat
- sealing
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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 invention relates to a sealing mat with two preferably synthetic textile fibers existing layers, namely a top layer and a carrier layer, and an intermediate layer arranged between them, which essentially consists of swellable clay such as bentonite, the top layer and carrier layer being connected to one another.
- Such sealing mats are known for example from the DE 37 04 503.
- a sealing mat is described, which in practice a top layer and a carrier layer made of a mechanically consolidated Has spunbonded nonwoven, the two layers being needled together.
- fiber bundles from the one fleece layer are in the another layer of fleece pulled and held there due to the material friction.
- the bentonite powder is in through the drawn fiber bundle the intermediate layer fixed so that movement of the bentonite powder within the intermediate layer when rolling up or laying the Sealing mat is prevented.
- the nonwovens consist of non-rotting Plastic fibers, preferably polyolefin fibers, which the Bentonite powder, preferably an activated sodium bentonite, permanently includes.
- a significant increase in the possible shear force transmission and Swelling back pressure through stronger connection of the top layer with the Backing layer can be achieved by sewing these two layers.
- Such a sealing mat is described in EP 0 536 475 B1.
- non-woven fabrics are preferably used to form the cover layer and Carrier layer used.
- the top layer and carrier layer are covered by a Large number of parallel seams that are approximately 25 mm apart have, connected to each other. Alternatively, you can easily Sew another material (knitted or woven) to form the Cover layer and / or carrier layer can be used.
- the fixation of the powder or granular bentonite between the top layer and the base layer takes place in this embodiment of the sealing mat by the novel use of a cotton fleece (Aerovlies), which is very coarse-pored and in which the bentonite powder is sprinkled.
- the aero fleece will sewn to the two outer layers so that its location between these two layers is fixed and also that which is held in the nonwoven Bentonite powder is permanently integrated.
- the sealing bentonite layers are by two superimposed, moisture-permeable textile layers from each other Cut. In order to allow liquid to pass through these textile layers to reduce a plane running parallel to the bentonite layers, is used when laying the sealing mats to seal a basic structure (Landfill, pond or similar) bentonite powder on a border of the sprinkled sealing mat below. The verge of the adjacent Sealing mat is placed on this sprinkled bentonite powder. The effectiveness of the sealing is very strong with this laying technique the care when sprinkling the bentonite powder and laying the Mats dependent.
- the object of the invention is to provide a sealing mat which when Laying in adjacent layers with overlapping edge areas guarantees increased edge sealing with little effort.
- This object is achieved in that at least one of the side Edge strips of the cover layer and / or the backing layer contains a high proportion of water-soluble fibers, the remaining areas of the cover layer and / or the backing layer is not water-soluble.
- the edge strip is one of the features of the invention textile outer layers water-soluble and dissolves after installation in the Soil and dampening through precipitation, groundwater or similar largely on. This releases the integrated bentonite layer and comes into contact with the surface of the adjacent sealing mat. The result is at least the same as when sprinkling one Bentonite strips on the edge strips of the upper textile layer Sealing mat, which from the edge strip of the adjacent sealing mat is covered.
- the edge strips are preferably those to be laid next to one another Sealing mats so water-soluble that the superimposed Textile layers of both sealing mats water-soluble in the edge area are trained.
- this can be achieved in that a Edge strips of the top layer and the one on the opposite edge Edge strips of the textile backing are water-soluble.
- the textile mats lying next to each other are laid in such a way that the edge strip of the textile mat with the water-soluble top layer lies below and the edge strip of the textile mat with the water-soluble Carrier layer is on top.
- the water-soluble cover layer section forming the edge strip is then located water-soluble forming the lower surface of the upper edge strip Backing section.
- the overlap area now consists of one double bentonite layer without interfering intermediate layer and thus has one higher tightness than the base mat.
- reversible sealing mats can be used at which cover layer and carrier layer have similar properties.
- cover layer and carrier layer have similar properties.
- one of these two layers on both longitudinal edges it is possible to have one of these two layers on both longitudinal edges to be provided with water-soluble edge strips.
- the water solubility of the edge strips of the textile layers is preferred through the use of water-soluble synthetic fibers made from polyvinyl alcohol achieved.
- Polyvinyl alcohol also called PVA or PVAL, is a plastic that is easy in water to form a viscous solution is soluble.
- the proportion of water-soluble fibers in the edge strips is preferably at least 40%. When this fiber fraction is dissolved, Edge strips only unbound single fibers that prevent the not significantly obstruct the bentonite layer covered by the textile layer. With a width of the sealing mat of at least 3 m, preferably 4 to 6 m, the width of the edge strip is between 5 and 20 cm, preferably 8 to 15 cm. The thickness of the two nonwoven layers and the thickness the bentonite intermediate layer lies with the previously known sealing mats between 2 and 5 mm.
- the recognizable sealing mat in FIGS. 1 and 2 can have a structure in accordance with the descriptions of the publications cited in the prior art DE 37 04 503 C2 or EP 0 536 475 B1. It consists of a textile cover layer 1 and a textile backing layer 2, each made of a nonwoven fabric, a woven fabric or a knitted fabric. Between the two textile layers, an intermediate layer 3 is integrated, which in is essentially formed by a swellable bentonite powder. topcoat 1 and carrier layer 2 are firmly connected to each other (e.g. sewn or needled).
- the edge strips are 4 one of the two textile layers, namely those of the as Cover layer 1 designated layer, with a high proportion of water-soluble Fibers.
- the water-soluble edge strips 4 are in the drawings indicated by dashed hatching.
- FIG. 2 shows how the sealing mat shown in FIG. 1 is to be relocated.
- a first sealing mat is covered with the top layer 1 laid above, so that the water-soluble edge strips 4 of this top layer 1 face up.
- the left and right of the first, middle sealing mat sheet adjacent sheets with overlapping Edge strips 4 laid. These sheets are laid before laying turned so that the top layer 1 faces down.
- the finished, sealing layer consisting of several sheets of the sealing mat the water-soluble edge strips 4 of the textile cover layers are thus located in each case 1 on top of each other.
- Such a turning of the sealing mat Of course, it is only possible to create the different paths if the textile cover layer 1 and the textile carrier layer 2 are similar Have properties so that their position in the installed state as desired can be chosen.
- the water-soluble fiber or can be reliably placed on top of each other the water-soluble yarn can be dyed so that these edge strips visually differentiate from the non-soluble areas of the textile layers.
- FIG. 3 shows an alternative embodiment of the sealing mat. It are a medium sealing mat and the edge areas of the two adjacent sealing mats shown. On the right edge of the middle sealing mat is the edge strip 4 of the top cover layer 1 provided with water-soluble fibers. On the left edge of the middle sealing mat is the edge strip 4 'of the underlying carrier layer 2 provided with water-soluble fibers.
- the edge strips 4,4 ' when laying several sheets of the sealing mat next to each other placed directly on top of each other so that the edge strips in the overlap area the bottom left sealing mat and the edge strip of the right sealing mat lies above.
- the step-like position of the sealing mats will change due to the flexible Structure and the very large width of the sealing mat compared to its thickness of course not result in practice.
- the sealing mats will follow the underlay and next to when laying the contour the overlapping edge strips 4,4 'lie flat on the ground.
- the overlap area be enlarged so that a short section (5 to 10 cm) of the free mat edge of each of the overlapping sealing mats on one Area of the adjacent sealing mat without water-soluble fibers rests. 4 shows, the overlap area is then after Dissolving the water-soluble fibers through the insoluble areas overlying end sections of the mat edges largely completed and there is no risk of squeezing or squeezing the Bentonite from the overlap area.
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Hydrology & Water Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
Description
- Fig. 1
- eine Draufsicht auf eine erfindungsgemäße Dichtungsmatte und
- Fig. 2
- eine geschnittene Darstellung der erfindungsgemäßen Dichtungsmatte aus Fig. 1 mit zwei angrenzenden Dichtungsmatten im verlegten Zustand,
- Fig. 3
- eine alternative Ausführungsform der Dichtungsmatte, ebenfalls in geschnittener Darstellung und verlegtem Zustand unter Darstellung der angrenzenden Bereiche der Dichtungsmatte und
- Fig. 4
- eine vergrößerte Darstellung des Überlappungsbereichs zweier benachbarter Dichtungsmatten gemäß der in Fig. 3 gezeigten Ausführungsform.
Claims (8)
- Dichtungsmatte mit zwei aus vorzugsweise synthetischem Fasermaterial bestehenden Schichten, nämlich einer Deckschicht (1) und einer Trägerschicht (2), und einer dazwischen angeordneten Zwischenschicht (3), die im wesentlichen aus quellfähigem Ton wie Bentonit besteht, wobei Deckschicht (1) und Trägerschicht (2) miteinander verbunden sind, dadurch gekennzeichnet, daß mindestens einer der seitlichen Randstreifen (4,4') der Deckschicht (1) und/oder der Trägerschicht (2) einen hohen Anteil wasserlöslicher Fasern enthält, wobei die übrigen Bereiche der Deckschicht und/oder der Trägerschicht nicht wasserlöslich ausgeführt sind.
- Dichtungsmatte nach Anspruch 1, dadurch gekennzeichnet, daß ein Randstreifen (4) der Deckschicht (1) und der am gegenüberliegenden Rand der Dichtungsmatte liegende Randstreifen (4') der Trägerschicht (2) einen hohen Anteil wasserlöslicher Fasern enthalten.
- Dichtungsmatte nach Anspruch 1, dadurch gekennzeichnet, daß Deckschicht (1) und Trägerschicht (2) ähnliche Eigenschaften aufweisen und daß beide seitlichen Randstreifen (4) einer dieser beider Schichten (1) einen hohen Anteil wasserlöslicher Fasern enthalten.
- Dichtungsmatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die wasserlöslichen Fasern aus Polyvenylalkohol (PVA) bestehen.
- Dichtungsmatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Anteil wasserlöslicher Fasern im Randstreifen (4,4') mindestens 40% beträgt.
- Dichtungsmatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß ihre Breite mindestens 3 m und vorzugsweise 4 bis 6 m beträgt und daß die Breite des Randstreifens (4,4') zwischen 5 und 20 cm, vorzugsweise zwischen 8 und 15 cm, liegt.
- Dichtungsmatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Schicht (1,2) mit wasserlöslichen Randstreifen (4,4') aus einer Webware oder einer Kettenwirkware besteht und daß die Kettfäden dieser Textilware im Bereich des wasserlöslichen Randstreifens (4,4') die wasserlöslichen Fasern enthalten.
- Dichtungsmatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Schicht (1,2) mit wasserlöslichen Randstreifen (4,4') aus einem Faservlies besteht, in dessen Randstreifen (4,4') ein hoher Anteil wasserlöslicher Fasern eingemischt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813611A DE19813611A1 (de) | 1998-03-27 | 1998-03-27 | Dichtungsmatte |
DE19813611 | 1998-03-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0945555A1 EP0945555A1 (de) | 1999-09-29 |
EP0945555B1 true EP0945555B1 (de) | 2004-07-21 |
Family
ID=7862586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99105315A Expired - Lifetime EP0945555B1 (de) | 1998-03-27 | 1999-03-16 | Dichtungsmatte |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0945555B1 (de) |
AT (1) | ATE271630T1 (de) |
DE (2) | DE19813611A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1391201B1 (it) * | 2008-08-05 | 2011-11-18 | Volteco S P A | Membrana impermeabile, particolarmente per l'isolamento di costruzioni sottoposte a pressione idrostatica. |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3704503C3 (de) | 1987-02-13 | 1998-02-26 | Naue Fasertechnik | Wasserundurchlässige Dichtungsmatte |
DE9112500U1 (de) | 1991-10-08 | 1991-11-21 | Schreck, Paul, 97892 Kreuzwertheim | Dichtungsmatte für den Einsatz im Tiefbau zur Isolation von Erdreich gegen Flüssigkeiten |
DE4203861A1 (de) * | 1992-02-11 | 1993-08-12 | Naue Fasertechnik | Wasser- und/oder oelundurchlaessige dichtungsmatte aus quellfaehigem ton |
US5350255A (en) * | 1993-01-19 | 1994-09-27 | James Clem Corporation | Geosynthetic clay liner with modified edges for improved sealing |
-
1998
- 1998-03-27 DE DE19813611A patent/DE19813611A1/de not_active Withdrawn
-
1999
- 1999-03-16 AT AT99105315T patent/ATE271630T1/de not_active IP Right Cessation
- 1999-03-16 DE DE59909985T patent/DE59909985D1/de not_active Expired - Fee Related
- 1999-03-16 EP EP99105315A patent/EP0945555B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0945555A1 (de) | 1999-09-29 |
ATE271630T1 (de) | 2004-08-15 |
DE59909985D1 (de) | 2004-08-26 |
DE19813611A1 (de) | 1999-09-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE68908457T2 (de) | Mehrschichtige, nichtgewebte Stoffbahn. | |
EP0536475B1 (de) | Dichtungsmatte für den Einsatz im Tiefbau zur Isolation von Erdreich gegen Flüssigkeiten | |
EP0290653B1 (de) | Materialbahn | |
EP0828898B1 (de) | Textiler verbundstoff | |
DE9400650U1 (de) | Verbundmatte, insbesondere für den Fels-, Böschungs- und Deponiebau | |
DE68903259T2 (de) | Hydrophobes material, verwendbar zur draenage eines entwaesserungskanals. | |
EP0945555B1 (de) | Dichtungsmatte | |
DE2648716C3 (de) | Teppichzwischenlage | |
DE202006004624U1 (de) | Filzband, insbesondere Papiermaschinenfilz | |
EP1141490B1 (de) | Dichtungsmatte und verfahren zur herstellung einer dichtungsmatte | |
WO2002054852A9 (de) | Matte, bzw. vorrichtung zur herstellung einer matte | |
DE2935387A1 (de) | Wasserdurchlaessiger bodenbelag | |
DE4130343C2 (de) | Verbundvliesmaterial und Verfahren zur Herstellung eines Verbundvliesmaterials | |
DE19738169A1 (de) | Dichtungsmatte | |
DE102019132849B4 (de) | Sandwich-Geokunststoffbahn mit verriegelnder Vernadelung | |
DE4109050C2 (de) | Dränmatte mit Sperrwirkung | |
DE3727336C2 (de) | Matte mit Lufteinschlüssen zur Wärmedämmung | |
DE4431976A1 (de) | Erosionsschutz- bzw. Drainagematte | |
DE4222969A1 (de) | Deponieabdichtung | |
DE2838012A1 (de) | Tarnnetz mit genaehtem stuetznetz | |
DE19938286C2 (de) | Pflanzenträgermatte für die Durchwurzelung mit Repositionspflanzen bestehend aus einer dreidimensionalen Kettengewirkestruktur | |
DE29515834U1 (de) | Abdichtmatte | |
DE10138000B4 (de) | Verwendung eines Folievliesstoffes als Geotextil | |
DE7414314U (de) | Kratzenbelag für Kardenwalzen | |
DE102021129658A1 (de) | Wasserrückhalte- und Wasserabgabevorrichtung für mit Pflanzen, Bäumen o.dgl. versehene Böden |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE FR GB IT |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 19991130 |
|
AKX | Designation fees paid |
Free format text: AT DE FR GB IT |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: HUESKER SYNTHETIC GMBH |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE FR GB IT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040721 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 59909985 Country of ref document: DE Date of ref document: 20040826 Kind code of ref document: P |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20040721 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050316 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20050331 Year of fee payment: 7 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050422 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051130 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20051130 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20060331 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061003 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070316 |