[go: up one dir, main page]

EP0278343B1 - Device for linking together panels incorporated in a sealing apron - Google Patents

Device for linking together panels incorporated in a sealing apron Download PDF

Info

Publication number
EP0278343B1
EP0278343B1 EP88101356A EP88101356A EP0278343B1 EP 0278343 B1 EP0278343 B1 EP 0278343B1 EP 88101356 A EP88101356 A EP 88101356A EP 88101356 A EP88101356 A EP 88101356A EP 0278343 B1 EP0278343 B1 EP 0278343B1
Authority
EP
European Patent Office
Prior art keywords
sealing
plates
cavity
wall
coupling
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
Application number
EP88101356A
Other languages
German (de)
French (fr)
Other versions
EP0278343A1 (en
Inventor
Joachim Fischer
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
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 Individual filed Critical Individual
Priority to AT88101356T priority Critical patent/ATE54972T1/en
Publication of EP0278343A1 publication Critical patent/EP0278343A1/en
Application granted granted Critical
Publication of EP0278343B1 publication Critical patent/EP0278343B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/03—Prefabricated parts, e.g. composite sheet piles
    • E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
    • E02D5/08—Locking forms; Edge joints; Pile crossings; Branch pieces

Definitions

  • the invention relates to a device for connecting sealing plates to be installed in a sealing wall, in particular a diaphragm wall for vertical sealing of landfills, preferably made of plastic, on their vertical side seams by means of coupling halves, preferably also made of plastic, arranged on adjacent sealing plates, which form a controllable cavity interlock positively and have a sealing strip which cooperates with the associated other coupling half in a sealing manner.
  • sealing plates made of plastic into the sealing wall, which act as an additional sealing layer, since the material of the sealing wall produced using binders or selective materials has a permeability that cannot be accepted, particularly when landfills are sealed.
  • these sealing plates In order to achieve the additional sealing by means of sealing plates to be installed in the sealing wall, these sealing plates must be connected to one another in a liquid-tight manner in their vertical side seams. In the known constructions, this is done by coupling halves arranged on adjacent sealing plates, which interlock in a form-fitting manner when the sealing plates are installed one after the other.
  • the two coupling halves form a cavity after assembly, which is made controllable to check the tightness of the connection of adjacent sealing plates.
  • the check can either be carried out only after assembly or continuously, with periodic or continuous checks being possible in the latter case.
  • the sealing walls are preferably produced using a supporting fluid which, when the sealing plates are assembled in sections, enters the cavity which is formed by joining the two coupling halves, it is necessary, after the respective installation of a further sealing plate, for the cavity of the supporting fluid formed by the coupling halves and to remove and clean any dirt.
  • the base of the cavity is first closed with a sealing material or a packer before the supporting liquid with the contaminants is removed from the cavity and the cavity can be cleaned.
  • the cavity is composed primarily of two tubular coupling halves.
  • the first coupling half has a larger diameter than the second coupling half and encloses it.
  • Each of the coupling halves, opposite their respective sealing plate, is provided with a slot, the slot of the larger coupling half being penetrated by the sealing wall connected to the smaller coupling half.
  • Sealing strips are formed on the outer circumferential surface of the inner coupling half, which, on the other hand, rest liquid-tight on the inner circumferential surface of the outer coupling half.
  • a disadvantage of the known construction is that, due to the considerable play of the inner coupling tube within the outer coupling tube, the sealing effect between the two coupling halves is not so good, in particular under the harsh conditions that after pumping out the support fluid and cleaning the Cavity penetration of support fluid is reliably prevented.
  • the support fluid penetrates precisely into the area between the interacting coupling halves which, according to the invention, is to be welded after cleaning.
  • Another disadvantage of the known design is that the cavity has only poor guiding properties when assembling the coupling halves and the two round profiles pushed into one another have only little resistance to tearing apart. The lack of guidance of the tools used later can also be regarded as a disadvantage.
  • the object of the invention is to provide, in a device of the type described for connecting sealing plates to be installed in a sealing wall, a design of the coupling halves which, after assembly, but before they are welded together, represents a sufficiently liquid-tight connection, the subsequent welding of which is liquid-tight seams results and brings the leadership properties that prevent tearing apart during assembly.
  • each coupling half is provided at its free edge with a cross-sectionally C-shaped end profile and in its edge connected to the sealing plate with a complementary to the C-shaped end profile and that at the transition between the recess and the sealing strips designed to form the cavity protrude into the cavity and can be welded to the transition between the C-shaped end profile and the wall forming the cavity of the associated other coupling half.
  • This inventive design of the coupling boy halves has the advantage that it can be used to create a sealing wall which enables safe assembly and which is sufficiently liquid-tight immediately after assembly to completely empty the cavity formed by the coupling halves and until the subsequent welding process to be able to protect against the ingress of support fluid.
  • the corners created by the shape serve to support and guide tools to be used in the interior of the cavity.
  • the in cross-section C-shaped end profile and the mirror-inverted recess form a labyrinth seal, which on the one hand cleans itself when the coupling halves are axially pushed together and which on the other hand forms an effective seal over a longer period of time, so that after emptying the cavity, no supporting fluid is left in can penetrate this cavity.
  • the sealing strip formed at the transition between the recess and the wall forming the cavity projects into the cavity, the latter is very easily accessible, as a result of which it can be cleaned reliably after the cavity has been emptied, together with the transition between the C-shaped end profile and the wall of the other coupling half forming the cavity. With this transition, the sealing strip is welded after cleaning. Since reliably cleanable and easily accessible parts of the coupling halves are welded together, liquid-tight weld seams are produced without the need to clean and / or clean the sealing surfaces necessary for the time between pumping out the cavity and the welding process, which are virtually inaccessible to be used for the welding process.
  • the proposal according to the invention results in a construction which, on the one hand, allows easy handling even under difficult practical conditions, in particular as far as the safe assembly is concerned, and on the other hand enables reliable sealing of the cavity with an improved process sequence.
  • Each coupling half is preferably provided with a web through which the coupling half can be welded to a hollow or full sealing plate.
  • the web is inserted into an intermediate space between two parallel plates, preferably made of plastic, and welded to these plates. This results in a two-shell sealing plate with coupling halves attached in a liquid-tight manner, the space formed between the plates being able to be formed in various ways.
  • the drawing shows two sealing plates 1, which are each formed by two parallel plates 2 made of plastic.
  • the space between these two plates 2 is filled with a cavity image, for example a grid 3.
  • the horizontal foot and head seam of each sealing plate 1 is sealed liquid-tight by extrusion welding.
  • each sealing plate 1 In the two vertical edges of each sealing plate 1, a web 4b of a coupling half 4 is inserted, which is also made of plastic as a profile. A cavity 5 is formed by the walls 4a of two interacting coupling halves 4, as can be seen in the drawing.
  • the sealing plates 1 and coupling halves 4 can also be made of metal, for example steel or aluminum.
  • a sealing strip 8 is formed on the inside of each coupling half 4, which protrudes obliquely into the cavity 5. In this way, both the surface of the sealing strip 8 and the surface of the adjacent transition between the wall 4a and the end profile 6 can be reliably cleaned. This ensures that in the subsequent connection, primarily by welding the sealing strip 8 to the opposite transition between the end profile 6 and the wall 4a of the other coupling half 4, a liquid-tight seam is generated which prevents liquids or pollutants from penetrating into the cavity 5 or even a passage of these liquids and pollutants in the coupling halves 4 reliably prevented.
  • the welding process is preferably carried out using a heating wedge guided through the angular shape of the cavity, which runs between the sealing strip 8 and the adjacent wall 4a and effects plasticization of the plastic before the sealing strip 8 is preferably pressed onto the adjacent transition between the end profile 6 and the wall 4a by means of pressure rollers becomes.
  • the subsequent and, if necessary, constant control of the cavity 5 can be carried out by overpressure or vacuum, by an indicator liquid, by checking the pH value by means of electrodes or other measures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Hydrology & Water Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Chemical & Material Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Processing Of Solid Wastes (AREA)
  • Building Environments (AREA)

Abstract

A coupling mechanism for the interconnection of sealing plates. Symmetrical coupling halves of the sealing plates are interconnected and welded together to form a hollow space that can be checked. Each coupling half has a free edge that is provided with a C-shaped profiled connecting part. That edge of the coupling half where it is attached to a sealing plate is provided with a notch-like part that is symmetrical to the C-shaped connecting part. A sealing strip projects into the hollow space from the transition area between the notch-like part and the adjoining wall. This sealing strip can be welded to the transition area of the cooperating coupling half between the C-shaped connecting part and the adjoining wall thereof.

Description

Die Erfindung betrifft eine Vorrichtung zum Verbinden von in eine Dichtungswand, insbesondere eine Schlitzwand zur vertikalen Abdichtung von Deponien, einzubauenden DichtungspJatten, vorzugsweise aus Kunststoff, an ihren vertikalen Seitennähten mittels jeweils an benachbarten Dichtungsplatten angeordneten, vorzugsweise ebenfalls aus Kunststoff hergestellten Kupplungshälften, die unter Bildung eines kontrollierbaren Hohlraumes formschlüssig ineinandergreifen und die über eine Dichtleiste verfügen, welche mit der zugehörigen anderen Kupplungshälfte abdichtend zusammenwirkt.The invention relates to a device for connecting sealing plates to be installed in a sealing wall, in particular a diaphragm wall for vertical sealing of landfills, preferably made of plastic, on their vertical side seams by means of coupling halves, preferably also made of plastic, arranged on adjacent sealing plates, which form a controllable cavity interlock positively and have a sealing strip which cooperates with the associated other coupling half in a sealing manner.

Bei der Herstellung vpn Dichtungswänden im Erd-und Wasserbau sowie zum Abdichten von Deponien ist es bekannt, in die Dichtungswand Dichtungsplatten aus Kunststoff einzubauen, die als zusätzlich abdichtende Schicht wirken, da das Material der unter Verwendung von Bindemitteln oder selikatischen Materialien hergestellten Dichtungswand eine Durchlässigkeit besitzt, die insbesondere bei einer Abdichtung von Deponien nicht in Kauf genommen werden kann. Um die zusätzliche Abdichtung mittels in die Dichtungswand einzubauender Dichtungsplatten zu erzielen, müssen diese Dichtungsplatten in ihren vertikalen Seitennähten flüssigkeitsdicht miteinander verbunden werden. Dies geschieht bei den bekannten Konstruktionen durch jeweils an benachbarten Dichtungsplatten angeordnete Kupplungshälften, die beim nacheinander erfolgenden Einbau der Dichtungsplatten formschlüssig ineinandergreifen.In the manufacture of sealing walls in earthworks and hydraulic engineering and for sealing landfills, it is known to incorporate sealing plates made of plastic into the sealing wall, which act as an additional sealing layer, since the material of the sealing wall produced using binders or selective materials has a permeability that cannot be accepted, particularly when landfills are sealed. In order to achieve the additional sealing by means of sealing plates to be installed in the sealing wall, these sealing plates must be connected to one another in a liquid-tight manner in their vertical side seams. In the known constructions, this is done by coupling halves arranged on adjacent sealing plates, which interlock in a form-fitting manner when the sealing plates are installed one after the other.

Bei einer bekannten Ausführungsform derartiger Dichtungsplatten bilden die beiden Kupplungshälften nach dem Zusammenbau einen Hohlraum, der zur Kontrolle der Dichtigkeit der Verbindung benachbarter Dichtungsplatten kontrollierbar gemacht wird. Die Kontrolle kann hierbei entweder nur nach dem Zusammenbau oder ständig erfolgen, wobei im letztgenannten Fall periodische oder stetige Kontrollen möglich sind.In a known embodiment of such sealing plates, the two coupling halves form a cavity after assembly, which is made controllable to check the tightness of the connection of adjacent sealing plates. The check can either be carried out only after assembly or continuously, with periodic or continuous checks being possible in the latter case.

Da die Dichtungswände vorzugsweise unter Verwendung einer Stützflüssigkeit hergestellt werden, die beim abschnittsweisen Zusammenfügen der Dichtungsplatten in den Hohlraum eintritt, der sich durch Zusammenfügen der beiden Kupplungshälften bildet, ist es erforderlich, nach dem jeweiligen Einbau einer weiteren Dichtungsplatte den durch die Kupplungshälften gebildeten Hohlraum von Stützflüssigkeit und evtl. Verunreinigungen zu befreien und zu säubern. Zu diesem Zweck wird zuerst der Fußpunkt der Hohlraumes mit einem abdichtenden Material oder einem Packer verschlossen, bevor die Stützflüssigkeit mit den Verunreinigungen aus dem Hohlraumes beseitigt und der Hohlraum gesäubert werden kann.Since the sealing walls are preferably produced using a supporting fluid which, when the sealing plates are assembled in sections, enters the cavity which is formed by joining the two coupling halves, it is necessary, after the respective installation of a further sealing plate, for the cavity of the supporting fluid formed by the coupling halves and to remove and clean any dirt. For this purpose, the base of the cavity is first closed with a sealing material or a packer before the supporting liquid with the contaminants is removed from the cavity and the cavity can be cleaned.

Der Hohlraum setzt sich bei der bekannten Ausbildung in erster Linie aus zwei rohrförmigen Kupplungshälften zusammen. Die erste Kupplungshälfte weist einen größeren Durchmesser auf als die zweite Kupplungshälfte und umschließt diese. Jede der Kupplungshälften ist, ihrer jeweiligen Dichtungsplatte gegenüberliegend, mit einem Schlitz versehen, wobei der Schlitz der größeren Kupplungshälfte von der mit der kleineren Kupplungshälfte verbundenen Dichtwand durchragt wird. An der äußeren Mantelfläche der inneren Kupplungshälfte sind Dichtleisten ausgebildet, welche andererseits an der inneren Mantelfläche der äußeren Kupplungshälfte flüssigkeitsdicht anliegen.In the known design, the cavity is composed primarily of two tubular coupling halves. The first coupling half has a larger diameter than the second coupling half and encloses it. Each of the coupling halves, opposite their respective sealing plate, is provided with a slot, the slot of the larger coupling half being penetrated by the sealing wall connected to the smaller coupling half. Sealing strips are formed on the outer circumferential surface of the inner coupling half, which, on the other hand, rest liquid-tight on the inner circumferential surface of the outer coupling half.

Nachteilig bei der bekannten Konstruktion ist, daß, bedingt durch das beträchtliche Spiel des inneren Kupplungsrohres innerhalb des äußeren Kupplungsrohres, die Dichtwirkung zwischen den beiden Kupplungshälften insbesondere unter den harten Bedingungen der Praxis nicht so gut ist, daß nach dem Abpumpen der Stützflüssigkeit und dem Reinigen des Hohlraumes ein Eindringen von Stützflüssigkeit zuverlässig verhindert wird. Dabei dringt die Stützflüssigkeit gerade in denjenigen Bereich zwischen den zusammenwirkenden Kupplungshälften ein, der gemäß der Erfindung nach der Säuberung verschweißt werden soll. Ein weiterer Nachteil der bekannten Ausbildung besteht darin, daß der Hohlraum nur geringe Führungseigenschaften beim Zusammenbau der Kupplungshälften hat und die beiden ineinander geschobenen runden Profile nur einen geringen Widerstand gegen ein Auseinanderreißen aufweisen. Als Nachteil kann auch das Fehlen einer Führung der später benutzten Werkzeuge angesehen werden.A disadvantage of the known construction is that, due to the considerable play of the inner coupling tube within the outer coupling tube, the sealing effect between the two coupling halves is not so good, in particular under the harsh conditions that after pumping out the support fluid and cleaning the Cavity penetration of support fluid is reliably prevented. The support fluid penetrates precisely into the area between the interacting coupling halves which, according to the invention, is to be welded after cleaning. Another disadvantage of the known design is that the cavity has only poor guiding properties when assembling the coupling halves and the two round profiles pushed into one another have only little resistance to tearing apart. The lack of guidance of the tools used later can also be regarded as a disadvantage.

Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, bei einer Vorrichtung der beschriebenen Art zum Verbinden von in eine Dichtungswand einzubauenden Dichtungsplatten eine Ausbildung der Kupplungshälften zu schaffen, die nach dem Zusammenbau, jedoch vor ihrer Verschweißung eine ausreichend flüssigkeitsdichte Verbindung darstellt, deren anschließende Verschweißung flüssigkeitsdichte Nähte ergibt und die Führungseigenschaften mitbringt, die das Auseinanderreißen beim Zusammenbau verhindern.Proceeding from this, the object of the invention is to provide, in a device of the type described for connecting sealing plates to be installed in a sealing wall, a design of the coupling halves which, after assembly, but before they are welded together, represents a sufficiently liquid-tight connection, the subsequent welding of which is liquid-tight seams results and brings the leadership properties that prevent tearing apart during assembly.

Zur technischen Lösung dieser Aufgabe wird vorgeschlagen, daß jede Kupplungshälfte an ihrem freien Rand mit einem im Querschnitt C-förmigen Abschlußprofil und in ihrem mit der Dichtungsplatte verbundenen Rand mit einer dem C-förmigen Abschlußprofil komplementären Aussparung versehen ist und daß die am Übergang zwischen der Aussparung und der den Hohlraum bildenden Wand ausgebildeten Dichtleisten in den Hohlraum hineinragen und mit dem Übergang zwischen dem C-förmigen Abschlußprofil und der den Hohlraum bildenden Wand der zugehörigen anderen Kupplungshälfte verschweißbar sind.To solve this problem technically, it is proposed that each coupling half is provided at its free edge with a cross-sectionally C-shaped end profile and in its edge connected to the sealing plate with a complementary to the C-shaped end profile and that at the transition between the recess and the sealing strips designed to form the cavity protrude into the cavity and can be welded to the transition between the C-shaped end profile and the wall forming the cavity of the associated other coupling half.

Diese erfindungsgemäße Ausbildung der Kupp-Jungshälften bietet den Vorteil, daß mit ihr eine Dichtungswand geschaffen werden kann, die ein sicheres Zusammenbauen ermöglicht und die bereits unmittelbar nach dem Zusammenbau ausreichend flüssigkeitsdicht ist, um den durch die Kupplungshälften gebildeten Hohlraum vollständig entleeren und bis zum anschließenden Schweißvorgang vor einem Eindringen von Stützflüssigkeit schützen zu können. Die durch die Formgebung entstehenden Ecken dienen der Abstützung und Führung von im Innenraum des Hohlraumes einzusetzenden Werkzeugen. Von Vorteil ist insbesondere, daß daß das im Querschnitt C-förmige Abschlußprofil und die spiegelbildlich hierzu ausgeführte Aussparung eine Labyrinthdichtung bilden, die sich einerseites beim axialen Zusammenschieben der Kupplungshälften selbsttätig reinigt und die anderereseits eine auch über einen längeren Zeitraum wirksame Abdichtung bildet, so daß nach dem Entleeren des Hohlraumes keine Stützflüssigkeit mehr in diesen Hohlraum eindringen kann. Da die am Übergang zwischen der Aussparung und der den Hohlraum bildenden Wand ausgebildete Dichtleiste in den Hohlraum hineinragt, ist dieser sehr gut zugänglich, wodurch sie sich nach dem Entleeren des Hohlraumes zuverlässig reinigen läßt, und zwar zusammen mit dem Übergang zwischen dem C-förmigen Abschlußprofil und der den Hohlraum bildenden Wand der anderen Kupplungsshälfte. -Mit diesem Übergang wird anschließend an die Reinigung die Dichtleiste verschweißt. Da zuverlässig zu reinigende und gut zugängliche Teile der Kupplungshälften miteinander verschweißt werden, ergeben sich flüssigkeitsdichte Schweißnähte, ohne daß es erforderlich ist, die für die Zeit zwischen dem Leerpumpen des Hohlraumes und dem Schweißvorgang notwendigen Dichtflächen, die so gut wie unzugänglich sind, zu reinigen bzw. für den Schweißvorgang heranzuziehen.This inventive design of the coupling boy halves has the advantage that it can be used to create a sealing wall which enables safe assembly and which is sufficiently liquid-tight immediately after assembly to completely empty the cavity formed by the coupling halves and until the subsequent welding process to be able to protect against the ingress of support fluid. The corners created by the shape serve to support and guide tools to be used in the interior of the cavity. It is particularly advantageous that the in cross-section C-shaped end profile and the mirror-inverted recess form a labyrinth seal, which on the one hand cleans itself when the coupling halves are axially pushed together and which on the other hand forms an effective seal over a longer period of time, so that after emptying the cavity, no supporting fluid is left in can penetrate this cavity. Since the sealing strip formed at the transition between the recess and the wall forming the cavity projects into the cavity, the latter is very easily accessible, as a result of which it can be cleaned reliably after the cavity has been emptied, together with the transition between the C-shaped end profile and the wall of the other coupling half forming the cavity. With this transition, the sealing strip is welded after cleaning. Since reliably cleanable and easily accessible parts of the coupling halves are welded together, liquid-tight weld seams are produced without the need to clean and / or clean the sealing surfaces necessary for the time between pumping out the cavity and the welding process, which are virtually inaccessible to be used for the welding process.

Insgesamt ergibt sich mit dem erfindungsgemäßen Vorschlag eine Konstruktion, die einerseits eine einfache Handhabung auch unter den schwierigen Praxisbedingungen gestattet, insbesondere was das sichere Zusammenbauen anbelangt, und andererseits bei verbessertem Verfahrensablauf eine zuverlässige Abdichtung des Hohlraumes ermöglicht.Overall, the proposal according to the invention results in a construction which, on the one hand, allows easy handling even under difficult practical conditions, in particular as far as the safe assembly is concerned, and on the other hand enables reliable sealing of the cavity with an improved process sequence.

Vorzugsweise ist jede Kupplungshälfte mit einem Steg versehen, durch den die Kupplungshälfte an eine hohle oder volle Dichtungsplatte anschweißbar ist. Bei einer bevorzugten Ausführungsform wird der Steg in einen Zwischenraum zwischen zwei parallelen Platten, vorzugsweise aus Kunststoff eingesetzt und mit diesen Platten verschweißt. Auf diese Weise ergibt sich eine zweischalige Dichtungsplatte mit flüssigkeitsdicht angesetzten Kupplungshälften, wobei der zwischen den Platten gebildete Raum auf verschiedene Weise gebildet werden kann.Each coupling half is preferably provided with a web through which the coupling half can be welded to a hollow or full sealing plate. In a preferred embodiment, the web is inserted into an intermediate space between two parallel plates, preferably made of plastic, and welded to these plates. This results in a two-shell sealing plate with coupling halves attached in a liquid-tight manner, the space formed between the plates being able to be formed in various ways.

Auf der Zeichnung ist ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung in einem waagerechten Schnitt dargestellt.In the drawing, an embodiment of the device according to the invention is shown in a horizontal section.

Die Zeichnung zeigt zwei Dichtungsplatten 1, die jeweils durch zwei parallele Platten 2 aus Kunststoff gebildet werden. Der Raum zwischen diesen beiden Platten 2 ist mit einem Hohlraumbilder, beispielsweise ein Gitternetz 3 ausgefüllt. Die horizontale Fuß- und Kopfnaht jeder Dichtungsplatte 1 wird durch Extrusionsschweißung flüssigkeitsdicht verschlossen.The drawing shows two sealing plates 1, which are each formed by two parallel plates 2 made of plastic. The space between these two plates 2 is filled with a cavity image, for example a grid 3. The horizontal foot and head seam of each sealing plate 1 is sealed liquid-tight by extrusion welding.

In die beiden vertikalen Ränder jeder Dichtungsplatte 1 ist ein Steg 4b einer Kupplungshälfte 4 eingesetzt, die als Profil ebenfalls aus Kuststoff hergestellt ist. Durch die Wände 4a zweier zusammenwirkender Kupplungshälften 4 wird ein Hohlraum 5 gebildet, wie dies in der Zeichnung zu erkennen ist. Die Dichtungsplatten 1 und Kupplungshälften 4 können auch aus Metall hergestellt sein, beispielsweise aus Stahl oher Aluminium.In the two vertical edges of each sealing plate 1, a web 4b of a coupling half 4 is inserted, which is also made of plastic as a profile. A cavity 5 is formed by the walls 4a of two interacting coupling halves 4, as can be seen in the drawing. The sealing plates 1 and coupling halves 4 can also be made of metal, for example steel or aluminum.

Die eigentliche Verbindung benachbarter Kupplungshälften 4 erfolgt durch ein am freien Rand der Wand 4a ausgebildetes, im Querschnitt C-förmiges Abschlußprofil 6. Dieses Abschlußprofil 6 wird beim axialen Zusammenfügen der Kupplungshälften 4 in eine Aussparung 7 eingeschoben, die komplementär dem Querschnitt des Abschlußprofils 6 ausgeformt ist und im Anschluß an den Steg 4b an jeder Kupplungshälfte 4 ausgebildet ist. Hierbei wird durch das in der Aussparung 7 liegende Abschlußprofil 6 jeweils eine Labyrinthdichtung gebildet, die eine ausreichend gute Abdichtung des Hohlraumes 5 bewirkt, wenn dieser Hohlraum 5 nach dem Zusammenbau benachbarter Dichtungsplatten 1 entleert und gesäubert wird. Vor diesem Entleeren und Entsäubern wurde zuvor der Fußpunkt des Hohlraumes 5 auf geeignete Weise, beispielsweise mittels Harz abgedichtet.The actual connection of adjacent coupling halves 4 takes place by means of an end profile 6 which is formed on the free edge of the wall 4a and which is C-shaped in cross section. This end profile 6 is inserted into the recess 7 when the coupling halves 4 are axially joined, which is complementary to the cross section of the end profile 6 and is formed on the coupling 4b on each coupling half 4. In this case, a labyrinth seal is formed by the end profile 6 lying in the recess 7, which seals the cavity 5 sufficiently well when this cavity 5 is emptied and cleaned after the assembly of adjacent sealing plates 1. Before this emptying and cleaning, the base of the cavity 5 was previously sealed in a suitable manner, for example by means of resin.

Am Übergang der Wand 4a jeder Kupplungshälfte 4 zur Aussparung 7 ist an der Innenseite jeder Kupplungshälfte 4 eine Dichtleiste 8 ausgebildet, die schräg in den Hohlraum 5 hineinragt. Auf diese Weise läßt sich sowohl die Oberfläche der Dichtleiste 8 als auch die Oberfläche des benachbarten Überganges zwischen der Wand 4a und dem Abschlußprofil 6 zuverlässig reinigen. Hierdurch wird sichergestellt, daß bei der anschließenden Verbindung, vornehmlich durch Verschweißen der Dichtleiste 8 mit dem gegenüberliegenden Übergang zwischen dem Abschlußprofil 6 und der Wand 4a der Anderen Kupplungshälfte 4 eine flüssigkeitsdichte Naht erzeugt wird, die ein Eindringen von Flüssigkeiten oder Schadstoffen in den Hohlraum 5 oder gar ein Durchlassen dieser Flüssigkeiten und Schadstoffe im Bereich der Kupplungshälften 4 zuverlässig verhindert. Der Schweißvorgang erfolgt vorzugsweise unter Verwendung eines durch die kantige Form des Hohlraumes geführten Heizkeiles, der zwischen Dichtleiste 8 und benachbarter Wand 4a hindurchläuft und eine Plastifizierung des Kunststoffes bewirtkt, bevor die Dichtleiste 8 vorzugsweise mittels Druckrollen an den benachbarten Übergang zwischen Abschlußprofil 6 und Wand 4a angedrückt wird.At the transition of the wall 4a of each coupling half 4 to the recess 7, a sealing strip 8 is formed on the inside of each coupling half 4, which protrudes obliquely into the cavity 5. In this way, both the surface of the sealing strip 8 and the surface of the adjacent transition between the wall 4a and the end profile 6 can be reliably cleaned. This ensures that in the subsequent connection, primarily by welding the sealing strip 8 to the opposite transition between the end profile 6 and the wall 4a of the other coupling half 4, a liquid-tight seam is generated which prevents liquids or pollutants from penetrating into the cavity 5 or even a passage of these liquids and pollutants in the coupling halves 4 reliably prevented. The welding process is preferably carried out using a heating wedge guided through the angular shape of the cavity, which runs between the sealing strip 8 and the adjacent wall 4a and effects plasticization of the plastic before the sealing strip 8 is preferably pressed onto the adjacent transition between the end profile 6 and the wall 4a by means of pressure rollers becomes.

Die anschließende und ggf. ständige Kontrolle des Hohlraumes 5 kann durch Überdruck oder Vakuum, durch eine Indikatorflüssigkeit, durch Kontrolle des ph-Wertes mittels Elektroden oder andere Maßnahmen erfolgen.The subsequent and, if necessary, constant control of the cavity 5 can be carried out by overpressure or vacuum, by an indicator liquid, by checking the pH value by means of electrodes or other measures.

Claims (5)

1. Device for the connection of sealing plates which have to built into a diaphragm, especially a slit wall for the vertical sealing of ground storages, said sealing plates being preferably made of plastic and connected at their vertical joints by means of adjacent clutch halves, also being preferably made of plastic, which form a positive and interlocking joint and feature a sealing border to effect said connection of said sealing plates and to form a controllable void characterized in that each clutch half (4) features at its open edge a C-shaped closing profile (6) and at the edge where the clutch half (4) is attached to the sealing plate (1) a blockout (7) complementary to the C-shaped closing profile (6), and in that the sealing borders (8) formed at the point of transition between the blockout (7) and the wall (4a) forming the void (5) project into the void (5) and can be welded to the point of transition between the C-shaped closing profile (6) and the void (5) forming wall (4a) of the corresponding clutch half (4).
2. Device according to claim 1 characterized in that each clutch half (4) features a bar (4b) by means of which the clutch half (4) is connectable to a sealing plate (1).
3. Device according to claims 1 and 2 characterized in that the bar (4b) is inserted into a space between two parallel plastic plates (2) and welded to these plates (2).
4. Device according to claim 1 characterized in that the two clutch halves (4) form a four- or more- cornered chamber (5) in which cleaning and joining tools can be reliably guided.
5. Device according to claim 1 characterized in that by virtue of the shape of the clutch halves (4) a labyrinth-seal is produced which is sufficiently impervious to liquids and offers resistance to the breaking of a connection.
EP88101356A 1987-02-03 1988-01-30 Device for linking together panels incorporated in a sealing apron Expired - Lifetime EP0278343B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88101356T ATE54972T1 (en) 1987-02-03 1988-01-30 DEVICE FOR CONNECTING SEALING PLATES TO BE INCORPORATED IN A SEALING WALL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873703066 DE3703066A1 (en) 1987-02-03 1987-02-03 DEVICE FOR CONNECTING SEALING PLATES TO BE INSTALLED IN A SEALING WALL
DE3703066 1987-02-03

Publications (2)

Publication Number Publication Date
EP0278343A1 EP0278343A1 (en) 1988-08-17
EP0278343B1 true EP0278343B1 (en) 1990-07-25

Family

ID=6320060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101356A Expired - Lifetime EP0278343B1 (en) 1987-02-03 1988-01-30 Device for linking together panels incorporated in a sealing apron

Country Status (6)

Country Link
US (1) US4808039A (en)
EP (1) EP0278343B1 (en)
AT (1) ATE54972T1 (en)
BE (1) BE1000763A3 (en)
DE (2) DE8717997U1 (en)
NL (1) NL193171C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418613A1 (en) * 1994-05-27 1995-11-30 Sued Chemie Ag Sealing material against organic liquids
DE4418629A1 (en) * 1994-05-27 1995-11-30 Sued Chemie Ag Process for the production of sealing walls
DE19600181A1 (en) * 1996-01-04 1997-07-10 Gruber Alois Agru Gmbh Welding of interlocking plastic profiles between plastic plates for landfill site sealing walls

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8904845D0 (en) * 1989-03-03 1989-04-12 Vales Enoch S In-ground barrier
US5782583A (en) * 1989-03-03 1998-07-21 University Of Waterloo In-ground barrier
US5354149A (en) * 1989-08-25 1994-10-11 Barrier Member Containment Corp. In-ground barrier system with pass-through
US5259705A (en) * 1989-08-25 1993-11-09 Breaux Louis B Guide box assembly system for in-ground barrier installation
US5106233A (en) * 1989-08-25 1992-04-21 Breaux Louis B Hazardous waste containment system
US5240348A (en) * 1989-08-25 1993-08-31 Louis Breaux Methods of hazardous waste containment
US5022786A (en) * 1990-05-23 1991-06-11 Philo Kenneth W Method and apparatus for the recovery and treatment of ground water contaminated by hazardous waste
FR2663352B1 (en) * 1990-06-13 1992-09-18 Unimetall Sa METHOD FOR WATERPROOFING THE CONNECTIONS BETWEEN PALLETS, AND PALLETS, ALLOWING ITS IMPLEMENTATION.
DE4036245A1 (en) * 1990-11-14 1992-05-21 Armin Dommer DEVICE FOR TARGET WEDGE WELDING OF JOINTS OF A COMPOSED PLASTIC HOLLOW PROFILE SECTION
DE4225497C1 (en) * 1992-08-01 1993-09-09 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim, De Locking-joint-cleaning method in hardening wall - flushes out space between seals using agent of greater specific gravity than wall material in liquid state and removes after wall hardens
WO1994013593A1 (en) * 1992-12-04 1994-06-23 Breaux Louis B Guide box assembly system for in-ground barrier installation
GB2278623B (en) * 1993-06-02 1996-09-11 Raswill Representative Pte Ltd An interlocking joint
DE4418646A1 (en) * 1994-05-27 1995-11-30 Sued Chemie Ag Swellable smectite sealing layer
CA2161583C (en) * 1995-10-27 1999-06-01 Gordon G. Schmidt Spill containment system
DE19711242A1 (en) * 1997-03-18 1998-10-01 Krupp Ag Hoesch Krupp Compound lock and sheet pile
US5827010A (en) * 1997-03-20 1998-10-27 The English Oak Partnership, L.P. On-site sewage treatment and disposal system
US5938375A (en) * 1997-12-17 1999-08-17 Sevonson Environmental Services, Inc. Method of sealing joints between adjacent sheet piling sections to form a continuous barrier and barriers formed using said method
US6053666A (en) * 1998-03-03 2000-04-25 Materials International, Inc. Containment barrier panel and method of forming a containment barrier wall
US6000883A (en) * 1998-03-03 1999-12-14 Irvine; John E. Sheet piling extrusion
US6033155A (en) * 1998-03-09 2000-03-07 Materials International, Inc. Reinforced structure panel for forming barrier walls
GB9816698D0 (en) 1998-07-31 1998-09-30 British Steel Plc Steel sheet piling
AU2003299044A1 (en) * 2002-09-17 2004-04-08 The White Oak Partnership, L.P. Wastewater biological treatment system and method therefor
US7313893B2 (en) * 2003-11-13 2008-01-01 Extech/Exterior Technologies, Inc. Panel clip assembly for use with roof or wall panels
US20060257211A1 (en) * 2005-05-11 2006-11-16 Kulkaski Bernard J Thermoplastic sheet pile design and methods of manufacture
DE102005061721A1 (en) * 2005-12-22 2007-06-28 Pilepro Llc Buildings made of sheet piles
CN101970770B (en) 2007-11-09 2012-10-03 Cfs混凝土模板系统公司 Pivotally activated connector components for form-work systems and methods for use of same
DE102008013443A1 (en) * 2008-03-10 2009-09-17 Contexo Ag Connecting element and sheet pile wall with such a connection element
CA2643305A1 (en) 2008-11-07 2010-05-07 Wayne A. Wolf Method and apparatus for monitoring barrier interconnections
US8943774B2 (en) 2009-04-27 2015-02-03 Cfs Concrete Forming Systems Inc. Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete
CA2748168C (en) 2009-01-07 2015-12-15 Cfs Concrete Forming Systems Inc. Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete
WO2012003587A1 (en) 2010-07-06 2012-01-12 Cfs Concrete Forming Systems Inc. Push on system for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures
WO2012143791A1 (en) * 2011-04-21 2012-10-26 Pilepro Llc Universal connecting element for sheet pile wall components
WO2013075250A1 (en) 2011-11-24 2013-05-30 Cfs Concrete Forming Systems Inc. Stay-in-place formwork with anti-deformation panels
WO2013102275A1 (en) * 2012-01-05 2013-07-11 Cfs Concrete Forming Systems Inc. Systems for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures with locatable stand-off components
US9453345B2 (en) 2012-01-05 2016-09-27 Cfs Concrete Forming Systems Inc. Panel-to-panel connections for stay-in-place liners used to repair structures
US10151119B2 (en) 2012-01-05 2018-12-11 Cfs Concrete Forming Systems Inc. Tool for making panel-to-panel connections for stay-in-place liners used to repair structures and methods for using same
CN105940165B (en) 2013-12-06 2019-01-15 Cfs 混凝土模板系统公司 Structural member coating decorative element, manufacture and the method using the structural member coating decorative element
AU2015240346B2 (en) 2014-04-04 2019-04-18 Cfs Concrete Forming Systems Inc. Liquid and gas-impermeable connections for panels of stay- in-place form-work systems
US10184219B2 (en) * 2014-07-11 2019-01-22 Saferoads Pty Ltd Barrier connection system and connector for use therein
WO2017113016A1 (en) 2015-12-31 2017-07-06 Cfs Concrete Forming Systems Inc. Structure-lining apparatus with adjustable width and tool for same
EP3607152B1 (en) 2017-04-03 2023-09-27 CFS Concrete Forming Systems Inc. Longspan stay-in-place ceiling liners
EP3728763A4 (en) 2017-12-22 2021-10-13 CFS Concrete Forming Systems Inc. Snap-together standoffs for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures
WO2020160684A1 (en) 2019-02-08 2020-08-13 Cfs Concrete Forming Systems Inc. Retainers for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE513105C (en) * 1930-11-22 Paul Albrecht Trough-shaped iron sheet pile
DE304018C (en) *
US2027288A (en) * 1931-08-13 1936-01-07 Ver Stahlwerke Ag Sheet piling
US2128428A (en) * 1936-08-18 1938-08-30 Jr Thomas E Murray Sheet piling
US2355102A (en) * 1942-10-15 1944-08-08 Ogden R Odman Sheet piling and the process of assembling the same
US2880589A (en) * 1955-01-25 1959-04-07 Acme Steel Co Sheet metal piling
US3601946A (en) * 1969-05-08 1971-08-31 Samson Window Corp Interlocking mullion construction
NL8200466A (en) * 1982-02-08 1983-09-01 Stevin Volker Beton Water METHOD FOR MANUFACTURING A DISPLAY CONTAINING THE FLOW OF GROUNDWATER
DE3436735A1 (en) * 1984-10-06 1986-04-17 Ed. Züblin AG, 7000 Stuttgart CONNECTOR FOR SURFACE BARRIERS
EP0200816B1 (en) * 1985-05-10 1989-10-11 Niederberg-Chemie GmbH Ulterior sealing of waste tips and contaminated surfaces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418613A1 (en) * 1994-05-27 1995-11-30 Sued Chemie Ag Sealing material against organic liquids
DE4418629A1 (en) * 1994-05-27 1995-11-30 Sued Chemie Ag Process for the production of sealing walls
DE19600181A1 (en) * 1996-01-04 1997-07-10 Gruber Alois Agru Gmbh Welding of interlocking plastic profiles between plastic plates for landfill site sealing walls

Also Published As

Publication number Publication date
ATE54972T1 (en) 1990-08-15
DE3703066C2 (en) 1991-09-26
BE1000763A3 (en) 1989-03-28
DE3703066A1 (en) 1988-08-11
US4808039A (en) 1989-02-28
NL8800044A (en) 1988-09-01
DE8717997U1 (en) 1992-05-07
NL193171C (en) 1999-01-05
EP0278343A1 (en) 1988-08-17
NL193171B (en) 1998-09-01

Similar Documents

Publication Publication Date Title
EP0278343B1 (en) Device for linking together panels incorporated in a sealing apron
DE2910090A1 (en) SEALING STRIPS FOR SEALING BUTT JOINTS AND JUNCTIONS BETWEEN COMPONENTS
DE3436735C2 (en)
DE2138123A1 (en) SEALING WALL, PREFERABLY FOR BARRIER IN THE SUBSOIL
EP0133655A2 (en) Joining piece for hollow profiles serving as spacing elements for insulating glass panels or the like
DE3727202C2 (en)
DE2744553A1 (en) METHOD FOR MANUFACTURING CONNECTED PROFILE BARS AND THE BAR PROFILE USED FOR THIS
DE19906340C5 (en) Method for producing frames, in particular of window frames or door frames, of plastic profile rods
EP0233989B1 (en) Barbed hooks for a sealing joint
DE3248072A1 (en) Plate which can be connected to neighbouring plates by cold working on its longitudinal or transverse edges
DE2714974C3 (en) Seal for the interlocking parts of adjacent sheet piles
DE3540589A1 (en) CONNECTING ELEMENTS FOR SLOT WALLS
DE3600783C2 (en) Trough structure for vehicles, in particular for trailers for road transport
DE2930689C2 (en) Method of making a composite window
EP0294539B1 (en) Process and apparatus for welding sealing aprons
DE2613854C3 (en) Tubbing segment for tunnel lining with joint sealing
DE7105981U (en) Profile frame made of plastic
DE3145924A1 (en) Butt-jointing of reinforcing bars
DE3818064A1 (en) Sealing on precast concrete compound units which can be plugged together
DE3605252C2 (en)
DE102013219317B4 (en) Process for manufacturing a vehicle body and vehicle body
DE3811933A1 (en) Device for connecting two tubes
CH514092A (en) Pipe connections between two concrete pipes
DE4225497C1 (en) Locking-joint-cleaning method in hardening wall - flushes out space between seals using agent of greater specific gravity than wall material in liquid state and removes after wall hardens
EP0233315B1 (en) Underground diaphragm for vertical sealing

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 FR GB IT

17P Request for examination filed

Effective date: 19881209

17Q First examination report despatched

Effective date: 19891213

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT FR GB IT

REF Corresponds to:

Ref document number: 54972

Country of ref document: AT

Date of ref document: 19900815

Kind code of ref document: T

ITF It: translation for a ep patent filed
ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
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
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011214

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011226

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20011228

Year of fee payment: 15

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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 NON-PAYMENT OF DUE FEES

Effective date: 20030130

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030130

GBPC Gb: european patent ceased through non-payment of renewal fee
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: 20030930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050130