EP0648916A1 - Profile strip made from flexible sealing material - Google Patents

Profile strip made from flexible sealing material Download PDF

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Publication number
EP0648916A1
EP0648916A1 EP94810322A EP94810322A EP0648916A1 EP 0648916 A1 EP0648916 A1 EP 0648916A1 EP 94810322 A EP94810322 A EP 94810322A EP 94810322 A EP94810322 A EP 94810322A EP 0648916 A1 EP0648916 A1 EP 0648916A1
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EP
European Patent Office
Prior art keywords
hollow channel
sealing material
flexible sealing
profile strip
strip made
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EP94810322A
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German (de)
French (fr)
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EP0648916B1 (en
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Albert Thalmann
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Priority claimed from CH105894A external-priority patent/CH685207A5/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • E21D11/383—Waterproofing; Heat insulating; Soundproofing; Electric insulating by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall

Definitions

  • the flexible sealing strip according to the present invention offers a remedy for this problem in that it both prevents the direct penetration of seepage water into the tunnel interior in the region of the joints and also enables the seepage water to drain into the longitudinal channels running to the side of the tunnel floor. This is achieved by gluing a profile strip made of flexible sealing material shaped along the joint to the inner wall of two adjacent elements of the tunnel lining, so that the channel preformed in the profile runs from one lateral drainage channel to the other along the entire length of the joint.
  • the leachate can run freely in the cavity of the profile on both sides to the lowest point of the joint and is completely absorbed by the side drainage channels.
  • the flexible profile strip consists of two flat side parts (1) lying in one plane, which between them include a hollow channel (3, 5) which is arranged below this plane and is open on one side upwards.
  • the hollow channel normally has the shape of a cylindrical one open at the top Pipe, the walls of which are seamlessly connected to one of the two side parts in the area of the opening. In other embodiments, however, it can also have a polygonal cross section, e.g. be rectangular.
  • the material for the flexible sealing strip is primarily a dimensionally stable material of sufficient flexibility, which, under the conditions prevailing in tunnel construction, maintains its impermeability to water over longer periods of time and also has sufficient strength with respect to any displacements of the components.
  • Suitable is e.g. Rubber in a quality protected against oxidation and aging.
  • the rubber can optionally also be reinforced with fiber or fabric inserts.
  • water-resistant flexible plastics such as, for example, plasticized polvinyl chloride
  • the two flat side parts are provided on their upper side facing away from the hollow channel for the adhesive connection with the elements of the tunnel lining.
  • the surface provided for the adhesive connection is advantageously provided with ribs, which bring about better adhesion to the surface of the structure.
  • Contact adhesive is advantageously used as the adhesive. These consist of a solution of natural or synthetic rubber in a volatile organic solvent. The contact adhesive is applied to the dry surfaces on both sides; After the solvent has evaporated, the parts to be glued are put together and then stick immediately.
  • the side parts and the tubular middle part of the flexible profile strip consist of one piece and are therefore seamlessly connected to each other.
  • the essentially rectangular transition (4) between the side and middle parts is somewhat reduced in thickness and thereby facilitates the change in the angle between the middle and side parts resulting from the narrowing and widening of the joint.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Sealing Devices (AREA)
  • Sealing Material Composition (AREA)

Abstract

Profile strip made from flexible sealing material, comprising two flat side parts connected by an open hollow channel. The hollow channel can have a U-shaped or polygonal, preferably rectangular, cross-section. The profile strip consists of a dimensionally stable, flexible material with good resistance to water, such as rubber, or of plastic, e.g. plasticised polyvinyl chloride, and can be reinforced by fibre or fabric inlays. It is preferably used in tunnelling for sealing the joints between adjacent lining elements. It is connected to the inside of the tunnel lining by adhesively bonding the flat side parts. The seepage water penetrating through the joint is directed through the hollow channel of the profile on both sides down to the sewers running along the tunnel. <IMAGE>

Description

Es ist üblich, Bahn- und Strassentunnel mit einer Auskleidung aus Eisenbeton zu versehen. Damit diese röhrenförmige Auskleidung etwaigen Bewegungen des Berges ungehindert nachgeben, und die durch Temperaturschwankungen und Bewegungen im Berg verursachten Längenänderungen ausgleichen kann, wird sie stets in einzelne Abschnitte unterteilt. Die Abschnitte von durchnittlich 15 m Länge werden entweder nach üblichen Verfahren an Ort und Stelle erstellt oder auch als Fertigelemente in das vorbereitete Tunnelprofil eingebracht. Zwischen den einzelnen Auskleidungselementen wird eine Dilatationsfuge offen gelassen, deren Breite je nach herrschender Temperatur etwa zwischen 1 und 15 mm schwanken kann.It is common to provide rail and road tunnels with a reinforced concrete lining. In order for this tubular lining to give way freely to any movements of the mountain and to compensate for the changes in length caused by temperature fluctuations and movements in the mountain, it is always divided into individual sections. The sections with an average length of 15 m are either created on site using customary methods or are also inserted as prefabricated elements in the prepared tunnel profile. A dilation joint is left open between the individual lining elements, the width of which can vary between 1 and 15 mm, depending on the prevailing temperature.

Während das Innere des Tunnels im Bereich der Betonauskleidung vor eindringendem Sickerwasser vollkommen geschützt ist, verbleibt im Bereich der Fugen zwischen den Auskleidungselementen jeweils eine offene Stelle, an welcher im Berg stets vorhandenes Sickerwasser ungehindert eindringen kann und aus der Fuge senkrecht nach unten tropft. Dies kann z.B. durch Einbringen einer Dichtungsmasse in die Fugen verhindert werden. Diese Art von Abdichtung besitzt jedoch verschiedene Nachteile: So ist es z.B. schwierig oder gar unmöglich, eine Dichtungsmasse zu finden, welche den Aenderungen der Fugenbreite infolge der Temperaturschwankungen standhält, ohne zu zerreissen oder sich vom Material der Auskleidungselemente zu lösen. Zudem sollte zwischen der Fugenauskleidung und dem darunterliegenden Felsmaterial ein Kanal offenbleiben, durch welchen das sich ansammelnde Sickerwasser entlang der Tunnelwand nach unten abfliessen kann.While the interior of the tunnel in the area of the concrete lining is completely protected from the ingress of leachate, an open area remains in the area of the joints between the liner elements, where leachate that is always present in the mountain can penetrate unhindered and drips vertically downwards from the joint. This can be prevented, for example, by introducing a sealing compound into the joints. However, this type of seal has several disadvantages: For example, it is difficult or even impossible to find a sealant that can withstand the changes in joint width due to temperature fluctuations, without tearing or detaching from the material of the lining elements. In addition, a channel should remain open between the joint lining and the rock material underneath, through which the accumulating leachate can flow down along the tunnel wall.

Der flexible Dichtungsstreifen gemäss der vorliegenden Erfindung bietet eine Abhilfe für dieses Problem, indem er im Bereich der Fugen sowohl das direkte Eindringen von Sickerwasser ins Tunnelinnere verhindert als auch dem Sickerwasser einen Ablauf in die seitlich des Tunnelbodens verlaufenden Längskanäle ermöglicht. Dies wird dadurch erreicht, dass man entlang der Fuge einen gemäss dem Patentanspruch 1 geformten Profilstreifen aus flexiblem Dichtungsmaterial auf die Innenwand zweier benachbarter Elemente der Tunnelauskleidung aufklebt, derart dass der im Profil vorgeformte Kanal entlang der gesamten Fugenlänge von einem seitlichen Abflusskanal zum andern verläuft. Das Sickerwasser kann somit im Hohlraum des Profils auf beiden Seiten ungehindert bis zum tiefsten Punkt der Fuge ablaufen und wird vollständig von den seitlichen Ablaufkanälen aufgenommen.The flexible sealing strip according to the present invention offers a remedy for this problem in that it both prevents the direct penetration of seepage water into the tunnel interior in the region of the joints and also enables the seepage water to drain into the longitudinal channels running to the side of the tunnel floor. This is achieved by gluing a profile strip made of flexible sealing material shaped along the joint to the inner wall of two adjacent elements of the tunnel lining, so that the channel preformed in the profile runs from one lateral drainage channel to the other along the entire length of the joint. The leachate can run freely in the cavity of the profile on both sides to the lowest point of the joint and is completely absorbed by the side drainage channels.

Der flexible Profilstreifen besteht gemäss dem Patentanspruch 1 aus zwei in einer Ebene liegenden flachen Seitenteilen (1), die zwischen sich einen unterhalb dieser Ebene angeordneten, nach oben einseitig offenen Hohlkanal (3,5 ) einschliessen Der Hohlkanal besitzt normalerweise die Form eines oben offenen zylindrischen Rohres, dessen Wände im Bereich der Oeffnung mit je einem der beiden Seitenteile fugenlos verbunden sind. Er kann aber in andern Ausführungsformen auch mit polygonartigem Querschnitt, z.B. rechteckig ausgeführt sein.According to claim 1, the flexible profile strip consists of two flat side parts (1) lying in one plane, which between them include a hollow channel (3, 5) which is arranged below this plane and is open on one side upwards. The hollow channel normally has the shape of a cylindrical one open at the top Pipe, the walls of which are seamlessly connected to one of the two side parts in the area of the opening. In other embodiments, however, it can also have a polygonal cross section, e.g. be rectangular.

Als Material für den flexiblen Dichtungsstreifen ist in erster Linie ein formbeständiges Material von genügender Flexibilität geeignet, welches unter den im Tunnelbau herrschenden Verhältnissen seine Undurchlässigkeit gegen Wasser über längere Zeiträume bewahrt und auch eine gegenüber etwaigen Verschiebungen der Bauelemente genügende Festigkeit aufweist. Geeignet ist z.B. Gummi in einer gegen Oxydation und Alterung geschützten Qualität. Der Gummi kann gegebenenfalls auch durch Faser- oder Gewebeeinlagen verstärkt sein.The material for the flexible sealing strip is primarily a dimensionally stable material of sufficient flexibility, which, under the conditions prevailing in tunnel construction, maintains its impermeability to water over longer periods of time and also has sufficient strength with respect to any displacements of the components. Suitable is e.g. Rubber in a quality protected against oxidation and aging. The rubber can optionally also be reinforced with fiber or fabric inserts.

Weiter kommen wasserbeständige flexible Kunststoffe, wie z.B. weichmacherhaltiges Polvinylchlorid in Frage. Die beiden flachen Seitenteile sind auf ihrer oberen, vom Hohlkanal abgewendeten Seite für die Klebeverbindung mit den Elementen der Tunnelauskleidung vorgesehen. Die für die Klebeverbindung vorgesehene Oberfläche wird vorteilhaft mit Rippen versehen, die ein besseres Haften an der Oberfläche des Baukörpers bewirken. Als Klebemittel verwendet man mit Vorteil Kontaktkleber. Diese bestehen aus einer Lösung von natürlichem oder synthetischem Gummi in einem leichtflüchtigen organischen Lösungsmittel. Der Kontaktkleber wird beidseitig auf die trockenen Oberflächen aufgetragen; nach dem Verdunsten des Lösungsmittels werden die zu klebenden Teile zusammengefügt und haften danach sofort.Furthermore, water-resistant flexible plastics, such as, for example, plasticized polvinyl chloride, are also suitable. The two flat side parts are provided on their upper side facing away from the hollow channel for the adhesive connection with the elements of the tunnel lining. The surface provided for the adhesive connection is advantageously provided with ribs, which bring about better adhesion to the surface of the structure. Contact adhesive is advantageously used as the adhesive. These consist of a solution of natural or synthetic rubber in a volatile organic solvent. The contact adhesive is applied to the dry surfaces on both sides; After the solvent has evaporated, the parts to be glued are put together and then stick immediately.

Die Seitenteile und das röhrenförmige Mittelteil des flexiblen Profilstreifens bestehen aus einem Stück und sind daher nahtlos miteinander verbunden. Wie aus den Figuren 1 bis 6 ersichtlich, ist der im wesentlichen rechtwinklige Uebergang (4) zwischen Seiten- und Mittelteil in seiner Dicke etwas vermindert und erleichtert dadurch die beim Verengen und Erweitern der Fuge resultierende Veränderung des Winkels zwischen Mittel- und Seitenteilen.The side parts and the tubular middle part of the flexible profile strip consist of one piece and are therefore seamlessly connected to each other. As can be seen from FIGS. 1 to 6, the essentially rectangular transition (4) between the side and middle parts is somewhat reduced in thickness and thereby facilitates the change in the angle between the middle and side parts resulting from the narrowing and widening of the joint.

Das Wesen der Erfindung und ihre Anwendung ist aus den Figuren No. 1 bis 6 ersichtlich, wobei jedoch die möglichen Ausführungsformen durch die Figuren in keiner Weise eingeschränkt sein sollen.

  • Figur 1 zeigt ein Stück eines erfindungsgemässen Profils in perspektivischer Ansicht mit den beiden Seitenteilen (1) und dem zylindrisch geformten Mittelteil (3), welcher im fertig verlegten Profil als Ablaufkanal für das Sickerwasser dient. Mit (2) sind die Rippen angedeutet, die ein besseres Haften der Verklebung mit der Betonauskleidung bewirkt.
  • Figur 2 zeigt einen Schnitt durch das gleiche Profil wie in Figur 1, wobei für die einzelnen Teile die gleichen Bezugsnummern verwendet werden.
  • Figur 3 zeigt den selben Schnitt wie Figur 2, jedoch in einem Zustand wie er sich einstellt, wenn die Fuge durch Ausdehnung der Verkleidungselemente enger geworden ist, wie dies durch die beiden Pfeile angedeutet ist.
  • Figur 4 zeigt einen Schnitt durch ein Profil, bei welchem der Mittelkanal (5) rechteckig geformt ist.
  • Figur 5 zeigt einen Schitt durch ein fertig verlegtes Profil (6), welches zwei benachbarte Wandelemente(7,7') aus Beton miteinander verbindet.
  • Figur 6 zeigt den Blick ins Innere eines Tunnels mit einem flexiblen Profilstreifen (8), welcher die beiden benachbarten Auskleidungselemente (9) und (10) miteinander verbindet. Es ist deutlich sichtbar, wie der Mittelkanal des Profils an seinem untern Ende in die beiden seitlichen Ablaufkanäle (11) mündet.
The essence of the invention and its application is shown in the figures no. 1 to 6 can be seen, but the possible embodiments are not to be restricted in any way by the figures.
  • Figure 1 shows a piece of a profile according to the invention in a perspective view with the two side parts (1) and the cylindrically shaped middle part (3), which serves as a drainage channel for the leachate in the finished laid profile. With (2) the ribs are indicated, which causes a better adhesion of the bond with the concrete lining.
  • FIG. 2 shows a section through the same profile as in FIG. 1, the same reference numbers being used for the individual parts.
  • Figure 3 shows the same section as Figure 2, but in a state as it arises when the joint has become narrower due to expansion of the cladding elements, as indicated by the two arrows.
  • Figure 4 shows a section through a profile in which the central channel (5) is rectangular.
  • FIG. 5 shows a step through a completely laid profile (6), which connects two adjacent wall elements (7, 7 ') made of concrete.
  • FIG. 6 shows the view inside a tunnel with a flexible profile strip (8) which connects the two adjacent lining elements (9) and (10) to one another. It is clearly visible how the central channel of the profile opens into the two lateral outlet channels (11) at its lower end.

Claims (8)

Profilstreifen aus flexiblem Abdichtmaterial zum Abdichten von Fugen und gleichzeitigen Ableiten von eindringendem Wasser zwischen einzelnen Bauelementen, dadurch gekennzeichnet, dass er aus zwei flachen, in einer Ebene angeordneten Seitenteilen (1) und einem unterhalb der genannten Ebene dazwischen liegenden, einseitig offenen Hohlkanal (3, 5) besteht, wobei die Seitenteile und der Hohlkanal miteinander durchgehend nahtlos verbunden sind.Profile strip made of flexible sealing material for sealing joints and at the same time draining ingress of water between individual components, characterized in that it consists of two flat side parts (1) arranged in one plane and a hollow channel (3, 5), the side parts and the hollow channel are continuously connected to each other seamlessly. Profilstreifen aus flexiblem Abdichtmaterial gemäss Anspruch 1, dadurch gekennzeichnet, dass der Hohlkanal (3) einen U-förmigen Querschnitt aufweistProfile strip made of flexible sealing material according to claim 1, characterized in that the hollow channel (3) has a U-shaped cross section Profilstreifen aus flexiblem Abdichtmaterial gemäss Anspruch 1, dadurch gekennzeichnet, dass der Hohlkanal (5) einen polygonalen, vorzugsweise rechteckigen Querschnitt besitzt.Profile strip made of flexible sealing material according to claim 1, characterized in that the hollow channel (5) has a polygonal, preferably rectangular cross section. Profilstreifen aus flexiblem Abdichtungsmaterial gemäss den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass er längs der Linie des im wesentlichen rechtwinkligen Uebergangs (4) von den Seitenteilen zum Hohlkanal dünnwandiger ausgebildet ist als in seinen restlichen Teilen.Profile strip made of flexible sealing material according to claims 1 to 3, characterized in that it is made thin-walled along the line of the substantially rectangular transition (4) from the side parts to the hollow channel than in its remaining parts. Profilstreifen aus flexiblem Abdichtungsmaterial gemäss den Ansprüchen 1 bis 4, dadurch gekennzeichnet, dass die benachbart zur offenen Seite des Hohlkanals liegenden, Oberflächen der beiden Seitenteile auf der vom Hohlkanal abgewendeten Seite fein gerippt sind.Profile strip made of flexible sealing material according to claims 1 to 4, characterized in that the surfaces of the two side parts lying adjacent to the open side of the hollow channel are finely ribbed on the side facing away from the hollow channel. Profilstreifen aus flexiblem Abdichtungsmaterial gemäss den Ansprüchen 1 bis 5, dadurch gekennzeichnet, dass er aus Gummi oder Kunststoffen, wie z.B. weichgemachtem Polyvinylchlorid besteht.Profile strips made of flexible sealing material according to claims 1 to 5, characterized in that it consists of rubber or plastics, such as plasticized polyvinyl chloride. Profilstreifen aus flexiblem Abdichtungsmaterial gemäss dem Anspruch 6, dadurch gekennzeichnet, dass er mit Faseroder Gewebeeinlagen verstärkt ist.Profile strip made of flexible sealing material according to claim 6, characterized in that it is reinforced with fiber or fabric inserts. Verwendung des Profilstreifens aus flexiblem Abdichtungsmaterial gemäss den Ansprüchen 1 bis 7 im Tunnelbau zum Verbinden von benachbarten Auskleidungselementen längs der dazwischen liegenden Fuge, dadurch gekennzeichnet, dass die beiden Seitenteile mit der Innenwand der Auskleidungselemente verklebt werden, wobei der in Richtung zur Fuge offene Hohlkanal zur Aufnahme des eindringenden Sickerwassers und dessen beidseitiger Ableitung zu den unter Bodenhöhe liegenden seitlichen Abwasserkanälen dient.Use of the profile strip made of flexible sealing material according to claims 1 to 7 in tunnel construction for connecting adjacent lining elements along the joint between them, characterized in that the two side parts are glued to the inner wall of the lining elements, with the hollow channel open towards the joint for receiving of the penetrating leachate and its bilateral drainage to the lateral sewers below ground level.
EP94810322A 1993-10-14 1994-06-01 Profile strip made from flexible sealing material Expired - Lifetime EP0648916B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH309093 1993-10-14
CH3090/93 1993-10-14
CH105894A CH685207A5 (en) 1994-04-11 1994-04-11 Profile strips consisting of a sealing material
CH1058/94 1994-04-11

Publications (2)

Publication Number Publication Date
EP0648916A1 true EP0648916A1 (en) 1995-04-19
EP0648916B1 EP0648916B1 (en) 1999-05-19

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EP94810322A Expired - Lifetime EP0648916B1 (en) 1993-10-14 1994-06-01 Profile strip made from flexible sealing material

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EP (1) EP0648916B1 (en)
AT (1) ATE180313T1 (en)
DE (1) DE59408276D1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0738825A1 (en) * 1995-04-19 1996-10-23 Hans Gubler Plastic drain
EP1035300A1 (en) 1997-09-04 2000-09-13 Fosroc International Limited Drainage System for use in tunnels
US6751919B2 (en) * 1999-07-19 2004-06-22 Jorge Gabrielli Zacharias Calixto Sealing element for expansion joints

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275266B (en) * 1960-06-03 1968-08-14 Schulte Stemmerk G M B H P Profile strand for sealing walkable or drivable expansion joints
US4189877A (en) * 1975-06-05 1980-02-26 York Manufacturing, Inc. Expansion joint cover
FR2482186A1 (en) * 1980-05-07 1981-11-13 Toyo Bussan Kk DEVICE FOR COLLECTING WATER FILING INTO TUNNEL BY JOINT OR CRACK
FR2522703A1 (en) * 1982-03-04 1983-09-09 Cofex Installing adhesive coated thermoplastic water stop seals - across structural joints using pilot patches of thermoplastic sheet and spot welds for initial support
WO1987004756A1 (en) * 1986-02-11 1987-08-13 Bergab-Berggeologiska Undersökningar Ab System for the insulation of mining installations and a method for implementing the system
DE3739918A1 (en) * 1987-11-25 1989-06-08 Schoeck Eberhard Arrangement of expansion-joint slabs at butt joints
EP0330730A2 (en) * 1988-03-01 1989-09-06 Hüls Troisdorf Aktiengesellschaft Cover strip for spaced joint
GB2258480A (en) * 1991-08-06 1993-02-10 Isola As Protective membrane

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275266B (en) * 1960-06-03 1968-08-14 Schulte Stemmerk G M B H P Profile strand for sealing walkable or drivable expansion joints
US4189877A (en) * 1975-06-05 1980-02-26 York Manufacturing, Inc. Expansion joint cover
FR2482186A1 (en) * 1980-05-07 1981-11-13 Toyo Bussan Kk DEVICE FOR COLLECTING WATER FILING INTO TUNNEL BY JOINT OR CRACK
FR2522703A1 (en) * 1982-03-04 1983-09-09 Cofex Installing adhesive coated thermoplastic water stop seals - across structural joints using pilot patches of thermoplastic sheet and spot welds for initial support
WO1987004756A1 (en) * 1986-02-11 1987-08-13 Bergab-Berggeologiska Undersökningar Ab System for the insulation of mining installations and a method for implementing the system
DE3739918A1 (en) * 1987-11-25 1989-06-08 Schoeck Eberhard Arrangement of expansion-joint slabs at butt joints
EP0330730A2 (en) * 1988-03-01 1989-09-06 Hüls Troisdorf Aktiengesellschaft Cover strip for spaced joint
GB2258480A (en) * 1991-08-06 1993-02-10 Isola As Protective membrane

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Fugenprofile,Fugenbänder", BAUEN MIT KUNSTOFFEN, March 1975 (1975-03-01), pages 128-130 *
HOFFMANN,SCHULZE UND TOBISCH: "Untersuchungen zur Druckspannungsrelaxation der Dichtungen der Absenkstrecke des Hamburger Elbtunnels", BAUMASCH.+BAUTECHN.BMT, vol. 26, no. 11, November 1979 (1979-11-01), BERLIN, pages 579 - 581 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0738825A1 (en) * 1995-04-19 1996-10-23 Hans Gubler Plastic drain
EP1035300A1 (en) 1997-09-04 2000-09-13 Fosroc International Limited Drainage System for use in tunnels
US6751919B2 (en) * 1999-07-19 2004-06-22 Jorge Gabrielli Zacharias Calixto Sealing element for expansion joints

Also Published As

Publication number Publication date
DE59408276D1 (en) 1999-06-24
ATE180313T1 (en) 1999-06-15
EP0648916B1 (en) 1999-05-19

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