EP0531600A1 - Method of making trench walls and shuttering element used in the method - Google Patents

Method of making trench walls and shuttering element used in the method Download PDF

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Publication number
EP0531600A1
EP0531600A1 EP91810730A EP91810730A EP0531600A1 EP 0531600 A1 EP0531600 A1 EP 0531600A1 EP 91810730 A EP91810730 A EP 91810730A EP 91810730 A EP91810730 A EP 91810730A EP 0531600 A1 EP0531600 A1 EP 0531600A1
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EP
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Prior art keywords
formwork
wall
shuttering
trench
box
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EP91810730A
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German (de)
French (fr)
Inventor
Franz Leutert
Gian Rudolf Nolfi
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Fietz & Leuthold AG
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Fietz & Leuthold AG
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Priority to EP91810730A priority Critical patent/EP0531600A1/en
Publication of EP0531600A1 publication Critical patent/EP0531600A1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
    • 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
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ
    • E02D5/185—Bulkheads or similar walls made solely of concrete in situ with flexible joint members between sections

Definitions

  • the present invention relates to a method for producing diaphragm walls, in which a trench is excavated by means of an excavation device and a formwork which closes off the trench and is composed of one or more elements is attached, and the formwork after the introduction and consolidation of the concrete by means of an implement, especially the excavator, is removed again.
  • the present invention relates to a shuttering element for performing this method.
  • Such concreted diaphragm walls are erected wherever sheet piling or the like is not possible or desirable, and in large buildings with several underground floors, the diaphragm walls can reach a great depth.
  • One method to which the present patent application relates is to dig a trench while simultaneously pouring in a thixotropic liquid to prevent the side walls from collapsing, this thixotropic liquid being gradually sucked off and recycled when the concrete is introduced. After reaching the target excavation point of the construction pit closure, the formwork described is moved, then the bentonite suspension is sanded, the required reinforcement is added and then the required concrete is poured.
  • a method is also known from CH-A-665 241, in which two guide walls are first erected along the excavated walls and the end wall is erected between these two guide walls, individual shuttering elements being built one on top of the other. Here too, the shuttering walls are pulled vertically out of the trench.
  • a slit wall piece is already concreted in the trench 2, and the formwork 3 has been installed in the trench, it being essential that the trench 2 is somewhat deeper than the slit wall piece provided.
  • the supporting liquid is sanded and the reinforcement installed.
  • concrete is introduced into this trench section, which is heavier than the thixotropic liquid and the latter can be suctioned off at the top, in order to then be recycled.
  • the formwork After the concrete has solidified, the formwork must be removed again, and it is a feature of the present invention that this formwork is no longer pulled vertically out of the trench, but when the following diaphragm wall element is lifted out by a gripping member 5 (see FIG. 4 ) is grasped on a holder 6 provided for this purpose and is first pulled away horizontally and then pulled out obliquely, as will be explained in more detail below.
  • the formwork generally consists of individual elements 7 arranged vertically one above the other, since using a single formwork element with a high diaphragm wall would make this much too heavy and unwieldy.
  • the formwork elements are essentially designed as a hollow box, which has an approximately trapezoidal cross section.
  • commercially available parts are used to manufacture the formwork elements.
  • the box-shaped, trough-shaped part 8 pointing towards the wall is a commercially available sheet pile wall element, the end parts 9 of which are not used in the present case and are protected against contamination by a seal 10.
  • a similar one can be produced and used that contains flat walls.
  • the formwork element is closed at the top and bottom by a cover or bottom 12, in which bores 13 are arranged, the purpose of which will be apparent from FIG. 5.
  • a rail 14 is welded to the formwork wall 11 and extends along the center line, it need not extend over the entire length of the element. Instead of a commercially available and readily available rail, it is also possible to use another suitable holder which can be gripped behind by a gripping member in order to be able to move the formwork element essentially horizontally and then obliquely upwards.
  • joint tapes or body tapes which are designed to be concreted in.
  • formwork according to the Swiss patent mentioned at the beginning, up to half of the extended joint tape is held on the outside of the formwork, and there is a risk of damage to the joint tape when the formwork is removed.
  • an angle piece 16 is attached to the outer surface 15 facing the wall, approximately in the longitudinal center line, against which half of a joint tape 17 known per se rests.
  • the other half of the Joint tape is held by an elastic element 18, which is fastened, for example, on a bar 19 along the outer surface 15.
  • the elastic element also has the task of protecting the underlying half of the joint tape from the thixotropic liquid and the concrete. When concreting, one half of the joint tape is concreted in, while the other half comes to lie in the open starting position of the joint tape after removal of the formwork element, see. Fig. 1.
  • the removal of the shuttering elements is shown schematically.
  • the gripping member 5 adapted to the rail 14 is pushed onto the rail from above and the upper end of the shuttering element, as shown in FIG. 3, is pulled away horizontally by the working device 20, which is the excavating device in the present case, until it has come off the diaphragm wall and can then be easily removed.
  • the formwork can consist of a plurality of formwork elements, here for example two, wherein one formwork element can have a length of 12.5 m.
  • 5 shows the connection of two formwork elements 7 and 7a placed vertically one on top of the other. The rigid connection is established by means of two or more screws 21 or push pins which are pushed through the holes 13 provided in the cover or base 12.
  • openings 22 and 23 are provided at both ends of the shuttering walls, which are held closed, for example, by spring-loaded flaps 24 and 25 and can be closed by means of a bolt 26.
  • other solutions are also conceivable in order to be able to access the screws. However, access must be relative be simple in order to be able to take the individual elements apart while the formwork is being removed.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

In the method of making trench walls (1), a trench is dug by means of a digger (20) and shuttering (7) closing off the trench is attached and removed again by means of the digger (20) after the placing and consolidation of the concrete. In the process, a gripping member (6) on the lifting device (6) reaches behind the shuttering element (7) in its top half at a retaining means (14), provided for this, in the form of a rail and releases it from the wall (1) first of all in a horizontal movement in order to then lift it away. The retaining means at the shuttering element (7) contain a rail piece (14) which is fastened approximately on the longitudinal centre line of the shuttering wall (11) of the shuttering element turned away from the trench wall (1) to be constructed. The above method and the rail piece at the shuttering wall enable the heavy shuttering to be drawn away horizontally, as a result of which substantially less expenditure of force and thus also a substantial reduction in the work time are made possible. <IMAGE>

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Herstellung von Schlitzwänden, wobei mittels eines Aushubgerätes ein Graben ausgehoben und eine den Graben abschliessende, aus einem Element oder mehreren Elementen bestehende Abschalung angebracht wird und die Abschalung nach dem Einbringen und Verfestigen des Betons mittels eines Arbeitsgerätes, insbesondere des Aushubgerätes, wieder entfernt wird. Ausserdem bezieht sich die vorliegende Erfindung auf ein Abschalungselement zur Durchführung dieses Verfahrens.The present invention relates to a method for producing diaphragm walls, in which a trench is excavated by means of an excavation device and a formwork which closes off the trench and is composed of one or more elements is attached, and the formwork after the introduction and consolidation of the concrete by means of an implement, especially the excavator, is removed again. In addition, the present invention relates to a shuttering element for performing this method.

Solche betonierten Schlitzwände werden überall dort errichtet, wo das Einrammen von Spundbohlen oder dergleichen nicht möglich oder erwünscht ist, und bei grossen Gebäuden, die mehrere unterirdische Stockwerke aufweisen, können die Schlitzwände eine grosse Tiefe erreichen. Ein Verfahren, auf das sich die vorliegende Patentanmeldung bezieht, besteht darin, einen Graben auszuheben unter gleichzeitigem Einfüllen einer thixotropen Flüssigkeit, um ein Einstürzen der Seitenwände zu verhindern, wobei diese thixotrope Flüssigkeit beim Einbringen des Betons nach und nach abgesaugt und der Wiederverwertung zugeführt wird. Nach Erreichen der Soll-Aushubkote des Baugrubenabschlusses wird die beschriebene Abschalung versetzt, anschliessend die Bentonit-Suspension entsandet, die erforderliche Armierung versetzt und dann der erforderliche Beton eingebracht. Bei allen vorbekannten Verfahren wird zum Entfernen der Abschalung diese mit einem Arbeitsgerät, in der Regel mit einem Rückzug-Ziehgerät von oben erfasst und vertikal von der Wand gelöst und aus dem Graben gezogen. Dies erfordert einen relativ hohen Kraftaufwand, und es müssen oft zusätzliche Arbeiten verrichtet werden, bis die Abschalung herausgehoben werden kann, und es besteht dabei die Gefahr, entweder die Abschalung oder die bereits betonierte Wand zu beschädigen.Such concreted diaphragm walls are erected wherever sheet piling or the like is not possible or desirable, and in large buildings with several underground floors, the diaphragm walls can reach a great depth. One method to which the present patent application relates is to dig a trench while simultaneously pouring in a thixotropic liquid to prevent the side walls from collapsing, this thixotropic liquid being gradually sucked off and recycled when the concrete is introduced. After reaching the target excavation point of the construction pit closure, the formwork described is moved, then the bentonite suspension is sanded, the required reinforcement is added and then the required concrete is poured. In all of the previously known methods, to remove the formwork, it is gripped from above with a working device, as a rule with a retraction pulling device, and detached vertically from the wall and pulled out of the trench. This requires a relatively large amount of effort and often additional work has to be done before the formwork can be lifted out, and there is a risk of either damage the formwork or the already concreted wall.

Es ist auch aus der CH-A-665 241 ein Verfahren bekannt, bei welchem zuerst zwei Führungswände entlang der ausgehobenen Wände errichtet werden und die Abschlusswand zwischen diesen beiden Führungswänden errichtet wird, wobei einzelne Abschalungselemente aufeinander aufgebaut werden. Auch hier werden die Abschalungswände vertikal aus dem Graben gezogen.A method is also known from CH-A-665 241, in which two guide walls are first erected along the excavated walls and the end wall is erected between these two guide walls, individual shuttering elements being built one on top of the other. Here too, the shuttering walls are pulled vertically out of the trench.

Es ist davon ausgehend Aufgabe der vorliegenden Erfindung, ein Verfahren und ein daran angepasstes Abschalungselement anzugeben, mit welchem es möglich ist, diese Abschalungselemente leicht und schnell zu entfernen. Diese Aufgabe wird mit dem in den Ansprüchen beschriebenen Verfahren und Abschalungelement gelöst. Ein bevorzugtes Abschalungselement weist ausserdem eine wirksame Abdichtung auf.Based on this, it is the object of the present invention to provide a method and a formwork element adapted to it, with which it is possible to remove these formwork elements easily and quickly. This object is achieved with the method and shuttering element described in the claims. A preferred formwork element also has an effective seal.

Die Erfindung wird nun im folgenden anhand einer Zeichnung von Ausführungsbeispielen näher erläutert.

  • Fig. 1 zeigt in einem Schnitt eine teilweise errichtete Schlitzwand mit einem erfindungsgemässen Abschalungselement,
  • Fig. 2 zeigt eine Ausschnittsvergrösserung aus Fig. 1,
  • Fig. 3 skizziert schematisch das Entfernen von Abschalungselementen aus dem Graben,
  • Fig. 4 zeigt einen Schnitt von Fig. 3, und
  • Fig. 5 zeigt die Verbindung von zwei Abschalungselementen im Längsschnitt.
The invention will now be explained in more detail below with reference to a drawing of exemplary embodiments.
  • 1 shows a section of a partially erected diaphragm wall with a shuttering element according to the invention,
  • FIG. 2 shows an enlarged detail from FIG. 1,
  • 3 schematically outlines the removal of formwork elements from the trench,
  • Fig. 4 shows a section of Fig. 3, and
  • Fig. 5 shows the connection of two formwork elements in longitudinal section.

Anhand von Fig. 1 kann der Arbeitsablauf grob wie folgt skizziert werden, wobei in Fig. 1 bereits Abschnitte des Grabens vorhanden sind. In Fig. 1 ist bereits ein Schlitzwandstück im Graben 2 einbetoniert, und es wurde die Abschalung 3 im Graben angebracht, wobei es wesentlich ist, dass der Graben 2 etwas tiefer ist als das vorgesehene Schlitzwandstück. Nach dem Anbringen der Abschalung wird die Stützflüssigkeit entsandet und die Armierung eingebaut. Nachher wird in diesen Grabenabschnitt Beton eingebracht, wobei dieser schwerer ist als die thixotrope Flüssigkeit und letztere oben abgesaugt werden kann, um sie dann der Wiederverwertung zuzuführen. Nach dem Verfestigen des Betons muss die Abschalung wieder entfernt werden, und es ist ein Merkmal der vorliegenden Erfindung, dass diese Abschalung nicht mehr vertikal aus dem Graben herausgezogen wird, sondern bei dem Ausheben des folgenden Schlitzwandelementes von einem Greiforgan 5 (s. Fig. 4) an einer dafür vorgesehenen Halterung 6 erfasst und zunächst horizontal weggezogen und anschliessend schräg herausgezogen wird, wie weiter unten noch näher erläutert wird.1, the workflow can be roughly sketched as follows, sections of the trench already being present in FIG. 1. In Fig. 1, a slit wall piece is already concreted in the trench 2, and the formwork 3 has been installed in the trench, it being essential that the trench 2 is somewhat deeper than the slit wall piece provided. After the formwork has been attached, the supporting liquid is sanded and the reinforcement installed. Subsequently, concrete is introduced into this trench section, which is heavier than the thixotropic liquid and the latter can be suctioned off at the top, in order to then be recycled. After the concrete has solidified, the formwork must be removed again, and it is a feature of the present invention that this formwork is no longer pulled vertically out of the trench, but when the following diaphragm wall element is lifted out by a gripping member 5 (see FIG. 4 ) is grasped on a holder 6 provided for this purpose and is first pulled away horizontally and then pulled out obliquely, as will be explained in more detail below.

Die Abschalung besteht in der Regel aus einzelnen, vertikal übereinander angeordneten Elementen 7, da bei Verwendung eines einzigen Abschalungselementes bei einer hohen Schlitzwand dieses viel zu schwer und unhandlich würde. Die Abschalungselemente sind im wesentlichen als Hohlkasten ausgebildet, der einen etwa trapezförmigen Querschnitt aufweist. Zur Vereinfachung und Verbilligung der Herstellung werden zur Herstellung der Abschalungselemente handelsübliche Teile verwendet. Der kastenförmige, zur Wand hin weisende, trogförmige Teil 8 ist im vorliegenden Ausführungsbeispiel ein handelsübliches Spundwandelement, dessen Abschlussteile 9 in vorliegendem Fall nicht verwendet werden und durch eine Abdichtung 10 vor Verschmutzung geschützt werden. Selbstverständlich kann anstelle eines bereits auf dem Markt befindlichen Spundwandelementes ein ähnliches hergestellt und verwendet werden, das ebene Wände enthält. Auf dem kastenförmigen Element 8 ist die den Graben abschliessende Abschalungswand 11 befestigt, die breiter als das kastenförmige Element 8 ist. Oben und unten ist das Abschalungselement durch einen Deckel, bzw. Boden 12 verschlossen, in welchen Bohrungen 13 angeordnet sind, deren Zweck aus Fig. 5 ersichtlich werden wird. An der Abschalungswand 11 ist eine Schiene 14 aufgeschweisst, die sich längs der Mittellinie erstreckt, wobei sie sich nicht über die ganze Länge des Elementes zu erstrecken braucht. Statt einer handelsüblichen und ohne weiteres erhältlichen Schiene ist es auch möglich, einen anderen geeigneten Halter zu verwenden, der von einem Greiforgan hintergriffen werden kann, um das Abschalungelement im wesentlichen horizontal und dann schräg nach oben bewegen zu können.The formwork generally consists of individual elements 7 arranged vertically one above the other, since using a single formwork element with a high diaphragm wall would make this much too heavy and unwieldy. The formwork elements are essentially designed as a hollow box, which has an approximately trapezoidal cross section. To simplify and reduce the cost of manufacture, commercially available parts are used to manufacture the formwork elements. In the present exemplary embodiment, the box-shaped, trough-shaped part 8 pointing towards the wall is a commercially available sheet pile wall element, the end parts 9 of which are not used in the present case and are protected against contamination by a seal 10. Of course Instead of a sheet pile wall element already on the market, a similar one can be produced and used that contains flat walls. The shuttering wall 11, which closes the trench and is wider than the box-shaped element 8, is fastened on the box-shaped element 8. The formwork element is closed at the top and bottom by a cover or bottom 12, in which bores 13 are arranged, the purpose of which will be apparent from FIG. 5. A rail 14 is welded to the formwork wall 11 and extends along the center line, it need not extend over the entire length of the element. Instead of a commercially available and readily available rail, it is also possible to use another suitable holder which can be gripped behind by a gripping member in order to be able to move the formwork element essentially horizontally and then obliquely upwards.

Bei einer aus Teilstücken bestehenden Schlitzwand ist es wesentlich, dass an den Nahtstellen zwischen den einzelnen Teilstücken keine Feuchtigkeit durch die Wand hindurchgelangen kann. Zu diesem Zwecke sind Fugenbänder respektive Körperbänder bekannt, die ausgebildet sind, einbetoniert zu werden. Bei der vorbekannten Abschalung gemäss dem eingangs erwähnten Schweizerpatent wird das ausgestreckte Fugenband bis zu seiner Hälfte in der Aussenseite der Abschalung gehalten, wobei beim Entfernen der Abschalung die Gefahr einer Beschädigung des Fugenbandes besteht.In the case of a diaphragm wall consisting of sections, it is essential that no moisture can get through the wall at the seams between the individual sections. For this purpose, joint tapes or body tapes are known which are designed to be concreted in. With the previously known formwork according to the Swiss patent mentioned at the beginning, up to half of the extended joint tape is held on the outside of the formwork, and there is a risk of damage to the joint tape when the formwork is removed.

Beim Ausführungsbeispiel gemäss Fig. 2 ist auf der zur Wand hin weisenden Aussenfläche 15, etwa in der Längsmittellinie, ein Winkelstück 16 befestigt, an dem eine Hälfte eines an sich bekannten Fugenbandes 17 anliegt. Die andere, etwa rechtwinklig geknickte Hälfte des Fugenbandes wird von einem elastischen Element 18 gehalten, das beispielsweise auf einer Leiste 19 entlang der Aussenfläche 15 befestigt ist. Das elastische Element hat ausserdem die Aufgabe, die darunterliegende Hälfte des Fugenbandes vor der thixotropen Flüssigkeit und dem Beton zu schützen. Beim Betonieren wird die eine Hälfte des Fugenbandes einbetoniert, während die andere Hälfte nach dem Entfernen des Abschalungselementes in die offene Ausgangslage des Fugenbandes zu liegen kommt, s. Fig. 1.In the exemplary embodiment according to FIG. 2, an angle piece 16 is attached to the outer surface 15 facing the wall, approximately in the longitudinal center line, against which half of a joint tape 17 known per se rests. The other half of the Joint tape is held by an elastic element 18, which is fastened, for example, on a bar 19 along the outer surface 15. The elastic element also has the task of protecting the underlying half of the joint tape from the thixotropic liquid and the concrete. When concreting, one half of the joint tape is concreted in, while the other half comes to lie in the open starting position of the joint tape after removal of the formwork element, see. Fig. 1.

In den Fig. 3 und 4 ist schematisch das Entfernen der Abschalungselemente dargestellt. Gemäss Fig. 4 wird das der Schiene 14 angepasste Greiforgan 5 von oben auf die Schiene geschoben und das obere Ende des Abschalungselementes, wie in Fig. 3 dargestellt, durch das Arbeitsgerät 20, das in vorliegendem Fall das Aushubgerät ist, horizontal weggezogen, bis es sich von der Schlitzwand gelöst hat, um dann leicht entfernt zu werden.3 and 4, the removal of the shuttering elements is shown schematically. 4, the gripping member 5 adapted to the rail 14 is pushed onto the rail from above and the upper end of the shuttering element, as shown in FIG. 3, is pulled away horizontally by the working device 20, which is the excavating device in the present case, until it has come off the diaphragm wall and can then be easily removed.

In Fig. 3 ist ferner angedeutet, dass die Abschalung aus mehreren Abschalungselementen, hier beispielsweise zwei, bestehen kann, wobei ein Abschalungselement eine Länge von 12,5 m aufweisen kann. In Fig. 5 ist die Verbindung von zwei vertikal aufeinander gestellten Abschalungselementen 7 und 7a dargestellt. Die biegesteife Verbindung wird über zwei oder mehr Schrauben 21 oder Schubbolzen hergestellt, die durch die dafür vorgesehenen Bohrungen 13 im Deckel bzw. Boden 12 durchgesteckt sind. Um die Schrauben 21 einbringen und verschrauben zu können, sind an beiden Enden der Abschalungswände Oeffnungen 22 und 23 vorgesehen, die beispielsweise durch federbeaufschlagte Klappen 24 bzw. 25 zugehalten und mittels eines Riegels 26 verschlossen werden können. Selbstverständlich sind auch andere Lösungen denkbar, um an die Schrauben gelangen zu können. Der Zugang muss jedoch relativ einfach sein, um auch während dem Wegbringen der Abschalungen die einzelnen Elemente auseinandernehmen zu können.In FIG. 3 it is also indicated that the formwork can consist of a plurality of formwork elements, here for example two, wherein one formwork element can have a length of 12.5 m. 5 shows the connection of two formwork elements 7 and 7a placed vertically one on top of the other. The rigid connection is established by means of two or more screws 21 or push pins which are pushed through the holes 13 provided in the cover or base 12. In order to be able to insert and screw the screws 21, openings 22 and 23 are provided at both ends of the shuttering walls, which are held closed, for example, by spring-loaded flaps 24 and 25 and can be closed by means of a bolt 26. Of course, other solutions are also conceivable in order to be able to access the screws. However, access must be relative be simple in order to be able to take the individual elements apart while the formwork is being removed.

Claims (8)

Verfahren zur Herstellung von Schlitzwänden, wobei mittels eines Aushubgerätes ein Graben ausgehoben und eine den Graben abschliessende, aus einem Element oder mehreren Elementen bestehende Abschalung angebracht wird und die Abschalung nach dem Einbringen und Verfestigen des Betons mittels eines Arbeitsgerätes, insbesondere des Aushubgerätes, wieder entfernt wird, dadurch gekennzeichnet, dass ein Greiforgan des Arbeitsgerätes ein Abschalungselement an dessen oberer Hälfte an einem dafür vorgesehenen Haltemittel ergreift und zuerst in einer im wesentlichen horizontalen Bewegung von der Wand löst, um es dann wegzuheben.Process for the production of diaphragm walls, whereby a trench is dug by means of an excavation device and a formwork that closes off the trench and is made up of one or more elements is removed and the formwork is removed again after the concrete has been introduced and solidified using a working device, in particular the excavation device , characterized in that a gripping member of the implement grips a shuttering element on the upper half of a holding means provided for this purpose and first releases it in a substantially horizontal movement from the wall, in order then to lift it away. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass aufeinanderliegende Abschalungselemente mittels Schrauben oder Schubbolzen miteinander verbunden werden, die durch Verbindungsbohrungen in Deckel und Boden der Abschalungselemente gesteckt und festgeschraubt werden.A method according to claim 1, characterized in that formwork elements lying one on top of the other are connected to one another by means of screws or push bolts which are inserted and screwed through connecting holes in the lid and bottom of the formwork elements. Abschalungselement zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, dass es Haltemittel zu seiner Entfernung aufweist, die einen etwa auf der Längsmittellinie der von der zu errichtenden Schlitzwand (1) weggewandten Abschalungswand (11) des Abschalungselementes (7) angeordneten schienenförmigen Halter (14) zum Hintergreifen mit dem Greiforgan (5) des Arbeitsgerätes (20) enthalten.Formwork element for carrying out the method according to claim 1, characterized in that it has holding means for its removal, which has a rail-shaped holder (14) arranged approximately on the longitudinal center line of the formwork wall (11) of the formwork element (7) facing away from the slit wall (1) to be erected ) for reaching behind with the gripping member (5) of the implement (20). Abschalungselement nach Anspruch 3, dadurch gekennzeichnet, dass es ein der zu errichtenden Schlitzwand (1) zugewandtes kastenförmiges Element (8), das an der Abschalungswand (11) befestigt ist sowie einen Deckel und einen Boden (12) aufweist, in denen je Verbindungsbohrungen (13) angebracht sind.Formwork element according to claim 3, characterized in that it has a box-shaped element (8) facing the slotted wall (1) to be erected, which is fastened to the formwork wall (11) and has a cover and a base (12) in which connecting bores ( 13) are attached. Abschalungselement nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass auf der Stirnseite des kastenförmigen Elementes (8) ein Fugenband (17) befestigt ist.Formwork element according to claim 3 or 4, characterized in that a joint tape (17) is attached to the end face of the box-shaped element (8). Abschalungselement nach Anspruch 5, dadurch gekennzeichnet, dass das Fugenband (17) etwa in seiner Mitte rechtwinklig abgebogen ist, wobei der zur Schlitzwand weisende Schenkel an einem am kastenförmigen Element befestigten Winkelstück (16) anliegt und der andere Schenkel lösbar und geschützt am kastenförmigen Element befestigt ist.Formwork element according to claim 5, characterized in that the joint tape (17) is bent approximately at right angles in its center, the leg pointing towards the diaphragm wall abutting an angle piece (16) attached to the box-shaped element and the other leg releasably and securely attached to the box-shaped element is. Abschalungselement nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass das kastenförmige Element (8) ein handelsübliches Spundwandelement und der Halter ein Schienenstück ist.Formwork element according to one of claims 3 to 6, characterized in that the box-shaped element (8) is a commercially available sheet pile element and the holder is a rail piece. Abschalungselement zur Durchführung des Verfahrens nach Anspruch 2, dadurch gekennzeichnet, dass an seinen beiden Enden verschliessbare Oeffnungen (22) vorgesehen sind, die gross genug sind, um die Schrauben (21) oder Schubbolzen durch die Bohrungen in Deckel und Boden (12) stecken und festschrauben zu können.Formwork element for carrying out the method according to claim 2, characterized in that closable openings (22) are provided at both ends, which are large enough to insert the screws (21) or push bolts through the holes in the lid and base (12) and to be able to screw tight.
EP91810730A 1991-09-13 1991-09-13 Method of making trench walls and shuttering element used in the method Withdrawn EP0531600A1 (en)

Priority Applications (1)

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EP91810730A EP0531600A1 (en) 1991-09-13 1991-09-13 Method of making trench walls and shuttering element used in the method

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EP91810730A EP0531600A1 (en) 1991-09-13 1991-09-13 Method of making trench walls and shuttering element used in the method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1983111A1 (en) * 2007-04-20 2008-10-22 BAUER Maschinen GmbH Formwork for limiting a diaphragm wall section, formwork element and method for manufacturing a diaphragm wall in the ground
RU2482243C1 (en) * 2011-10-31 2013-05-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный архитектурно-строительный университет" Stay-in-place form for erection of walls in soil
FR3109163A1 (en) * 2020-04-14 2021-10-15 Soletanche Freyssinet Formwork device fitted with a deviation measuring device

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GB1310393A (en) * 1970-03-02 1973-03-21 Morner J Shuttering devices for use in casting diaphragm walls
CH665241A5 (en) * 1987-01-28 1988-04-29 Zschokke Sa Conrad Wall-casting system in ground - uses end shuttering walls in sections aligned and clamped together beforehand
WO1990002847A1 (en) * 1988-09-02 1990-03-22 Action Products Marketing Corporation Cast-in-place manhole liner apparatus and method
EP0402247B1 (en) * 1989-06-06 1992-12-09 Soletanche Method and apparatus for loosening the panel and sealing of a wall moulded in the ground, from the concrete to which it adhers

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Publication number Priority date Publication date Assignee Title
GB1310393A (en) * 1970-03-02 1973-03-21 Morner J Shuttering devices for use in casting diaphragm walls
CH665241A5 (en) * 1987-01-28 1988-04-29 Zschokke Sa Conrad Wall-casting system in ground - uses end shuttering walls in sections aligned and clamped together beforehand
WO1990002847A1 (en) * 1988-09-02 1990-03-22 Action Products Marketing Corporation Cast-in-place manhole liner apparatus and method
EP0402247B1 (en) * 1989-06-06 1992-12-09 Soletanche Method and apparatus for loosening the panel and sealing of a wall moulded in the ground, from the concrete to which it adhers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1983111A1 (en) * 2007-04-20 2008-10-22 BAUER Maschinen GmbH Formwork for limiting a diaphragm wall section, formwork element and method for manufacturing a diaphragm wall in the ground
JP2008267132A (en) * 2007-04-20 2008-11-06 Bauer Maschinen Gmbh Formwork element for limiting diaphragm wall section, formwork part and method for manufacturing diaphragm wall in ground
KR101054277B1 (en) * 2007-04-20 2011-08-08 바우어 머쉬넨 게엠베하 How to make trench walls in formwork, formwork and ground to define sections of trench walls
CN101289854B (en) * 2007-04-20 2012-10-10 包尔机械有限公司 Formwork for limiting a diaphragm wall section, formwork element and method for manufacturing a diaphragm wall in the ground
US8348555B2 (en) 2007-04-20 2013-01-08 Bauer Maschinen Gmbh Formwork element for bounding a trench wall section, formwork part and method for producing a trench wall in the ground
RU2482243C1 (en) * 2011-10-31 2013-05-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный архитектурно-строительный университет" Stay-in-place form for erection of walls in soil
FR3109163A1 (en) * 2020-04-14 2021-10-15 Soletanche Freyssinet Formwork device fitted with a deviation measuring device
WO2021209392A1 (en) * 2020-04-14 2021-10-21 Soletanche Freyssinet Formwork device having a deviation-measuring device

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