EP0301188A1 - Shuttering for lining a tunnel with concrete cast in situ - Google Patents

Shuttering for lining a tunnel with concrete cast in situ Download PDF

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Publication number
EP0301188A1
EP0301188A1 EP88108027A EP88108027A EP0301188A1 EP 0301188 A1 EP0301188 A1 EP 0301188A1 EP 88108027 A EP88108027 A EP 88108027A EP 88108027 A EP88108027 A EP 88108027A EP 0301188 A1 EP0301188 A1 EP 0301188A1
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EP
European Patent Office
Prior art keywords
formwork
elements
tunnel
trailing shield
longitudinal
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.)
Granted
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EP88108027A
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German (de)
French (fr)
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EP0301188B1 (en
Inventor
Volker Dipl.-Ing. Hentschel
Clemens Dipl.-Ing. Versteegen
Jens Dipl.-Ing. Glöyer
Siegmund Dr. Babendererde
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Hochtief AG
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Hochtief AG
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • 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
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/102—Removable shuttering; Bearing or supporting devices therefor

Definitions

  • the invention relates to a formwork behind a tunneling machine, but also formwork that can be used independently for a tunnel lining with in-situ concrete, consisting of an inner formwork and a face formwork, the inner formwork being broken up into several formwork elements that can be moved independently of one another with interposed joint coverings and that between the Trailing shield and the inner formwork arranged forehead form can be moved forward by the in-situ concrete, which can be pressed into the annular space formed by the trailing shield or mountains and by the inner formwork and the front formwork.
  • the inner formwork is set up for complete forward movement together with the front formwork by the in-situ concrete pressed in. This presupposes relatively high concrete pressures, which are accompanied by correspondingly large pressure fluctuations that stand in the way of the perfect quality of the tunnel lining.
  • the invention has for its object to form a formwork of the type mentioned with respect to the advance of the inner formwork so that it has only a small influence on the concrete quality.
  • the solution to this problem according to the invention is that the inner formwork for a successive advance of each at least one of the formwork elements is set up in the longitudinal direction of the tunnel relative to the other formwork elements which remain or are held at rest.
  • the invention is based on the consideration that the problems described at the outset can best be overcome if, as it were, a moving forward movement is realized, the supporting forces required for moving one or more formwork elements forward via the formwork elements remaining at rest and friction in the in-situ concrete or the mountains are removed. Corresponding formwork has proven itself in practice in any case.
  • the formwork segments are used as formwork elements and over sliding longitudinal guides with associated lifting tables mounted on a support frame and in each case can be advanced in the longitudinal direction of the tunnel with the aid of a feed cylinder piston arrangement.
  • the arrangement will expediently be such that the feed cylinder piston arrangement is arranged between a front and a rear sliding longitudinal guide or a front and a rear lifting table.
  • the front formwork can be supported by adjustable springs on the cantilever arms of the supporting frame, so that the formwork can be used independently of the tunneling machine.
  • the formwork elements consist of formwork rings arranged at a distance one behind the other, which are connected to one another and can be moved forward by articulated feed cylinder piston arrangements;
  • the inner formwork is advanced in a peristaltic manner. So that a single formwork ring cannot move relative to the others, the formwork rings are expediently guided on longitudinal members.
  • the front formwork can also be adjusted via adjustable springs on the cantilever arms of the tunnel formwork, e.g. B. the first formwork ring to be supported to enable independent use of a tunneling machine.
  • the formwork shown in the figures is intended for tunnel lining with in-situ concrete and can be used behind a tunneling machine with a trailing shield 1, but also without a tunneling machine.
  • the formwork consists of an inner formwork 2 and a front formwork 3.
  • the inner formwork 2 is broken down into several formwork elements 4 and 5, which can be moved independently of one another, with interposed joint covers 6.
  • the joint covers 6 can be elastic joint inlays, covering sheets or similar constructions.
  • the front formwork 3 arranged between the trailing plate 1 and the inner formwork 2 can be advanced by the in-situ concrete, which can be pressed into the annular space 7, which is formed by the trailing plate 1 or mountains and by the inner formwork 2 and the front formwork 3.
  • the inner formwork 2 is set up for successively advancing in each case at least one of the formwork elements 4 or 5 relative to the other, at rest, or held formwork elements 4 or 5 in the longitudinal direction of the tunnel.
  • the inner formwork 2 seen in cross section, is constructed from a plurality of formwork segments 4 with interposed elastic longitudinal joint inserts 6.
  • Fig. 4 shows one in this Connection possible improvement regarding cornering;
  • the formwork segments 4 are each constructed from a plurality of segment sections 41 articulated to one another, the relative angular position of which can be adjusted and fixed with the aid of adjusting devices 8 in the form of hydraulic cylinder piston arrangements.
  • the formwork segments 4 are used as formwork elements and are mounted for this purpose on sliding longitudinal guides 9 with associated lifting tables 10 on a support frame 11 and can be advanced in the longitudinal direction of the tunnel with the aid of a feed cylinder piston arrangement 12.
  • the feed cylinder piston arrangement 12 is arranged between a front and a rear sliding longitudinal guide 9.
  • two sliding longitudinal guides 9 or associated lifting tables 10 are provided per formwork segment 4; with the help of the lifting tables 10, the formwork segments 4 can be radially relieved or acted upon.
  • the front formwork 3 is supported on adjustable arms 13 on cantilever arms 14 of the support frame 11.
  • the springs 13 can be, for example, hydraulic cylinder piston arrangements, the front cylinder chambers of which are acted upon by a gas pressure cushion arrangement via hydraulic lines.
  • the formwork elements consist of formwork rings 5 arranged at a distance from one another, which are connected to one another by articulated feed cylinder piston arrangements 12 and can be moved in a peristaltic manner.
  • the formwork rings 5 are included Guide elements 15, z. B. Support rollers on side members 16; it goes without saying that the guide elements 15 are designed so that steering is possible.
  • the formwork segments 4 and in the embodiment according to FIG. 3, the formwork rings 5 are moved forward individually or in groups. It is important that the frictional forces that occur between the formwork elements 4 and 5 remaining at rest and the concrete are always greater than the corresponding forces of the advanced formwork elements 4 and 5. By radially relieving or loading the respective formwork elements 4 and 5 respectively 5 All of this can be set up accordingly.

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

Abstract

Eine hinter einer Vortriebsmaschine mit einem Nachlaufschild (1) einsetzbare Schalung für eine Tunnelauskleidung mit Ortbeton besteht aus einer Innenschalung (2) und einer Stirnschalung (3). Die Innenschalung (2) ist in mehrere, unabhängig voneinander bewegbare Schalungselemente (4 bzw. 5) mit zwischengeschalteten Fugenüberdeckungen 6 aufgelöst. Die zwischen dem Nachlaufschild 1 und der Innenschalung 2 angeordnete Stirnschalung 3 ist durch den Ortbeton vorbewegbar, der in den vom Nachlaufschild 1 bzw. Gebirge und von der Innenschalung 2 sowie der Stirnschalung 3 gebildeten Ringraum 7 eindrückbar. In konstruktiver und funktioneller Hinsicht einwandfreie Verhältnisse ergeben sich dann, wenn die Innenschalung 2 für ein aufeinanderfolgendes Vorbewegen von jeweils zumindest einem der Schalungselemente (4 bzw. 5) gegenüber den übrigen, in Ruhe verbleibenden bzw. gehaltenen Schalungselementen (4 bzw. 5) in Tunnellängsrichtung eingerichtet ist.Formwork for tunnel lining with in-situ concrete that can be used behind a tunneling machine with a trailing shield (1) consists of an inner formwork (2) and a front formwork (3). The inner formwork (2) is broken down into a plurality of formwork elements (4 or 5) which can be moved independently of one another with interposed joint covers 6. The front formwork 3 arranged between the trailing shield 1 and the inner formwork 2 can be advanced by the in-situ concrete, which can be pressed into the annular space 7 formed by the trailing shield 1 or mountains and by the inner formwork 2 and the front formwork 3. In constructive and functional terms, perfect conditions result when the inner formwork 2 for a successive advance of at least one of the formwork elements (4 or 5) relative to the other, at rest, or held formwork elements (4 or 5) in the longitudinal direction of the tunnel is set up.

Description

Die Erfindung betrifft eine hinter einer Vortriebsmaschine mit einem Nachlaufschild, aber auch davon unabhängig einsetzbare Schalung für eine Tunnelauskleidung mit Ortbeton, bestehend aus einer Innen­schalung und einer Stirnschalung, wobei die Innenschalung in meh­rere, unabhängig voneinander bewegbare Schalungselemente mit zwi­schengeschalteten Fugenüberdeckungen aufgelöst ist und die zwischen dem Nachlaufschild und der Innenschalung angeordnete Stirnschalung durch den Ortbeton vorbewegbar ist, der in den vom Nachlaufschild bzw. Gebirge und von der Innenschalung sowie der Stirnschalung ge­bildeten Ringraum eindrückbar ist.The invention relates to a formwork behind a tunneling machine, but also formwork that can be used independently for a tunnel lining with in-situ concrete, consisting of an inner formwork and a face formwork, the inner formwork being broken up into several formwork elements that can be moved independently of one another with interposed joint coverings and that between the Trailing shield and the inner formwork arranged forehead form can be moved forward by the in-situ concrete, which can be pressed into the annular space formed by the trailing shield or mountains and by the inner formwork and the front formwork.

Bei einer bekannten Schalung der genannten Art (DE-OS 30 43 312) ist die Innenschalung für ein vollständiges Vorbewegen zusammen mit der Stirnschalung durch den eingedrückten Ortbeton eingerichtet. Das setzt verhältnismäßig hohe Betondrücke voraus, mit denen auch ent­sprechend große Druckschwankungen einhergehen, die einer einwand­freien Qualität der Tunnelauskleidung entgegenstehen.In a known formwork of the type mentioned (DE-OS 30 43 312), the inner formwork is set up for complete forward movement together with the front formwork by the in-situ concrete pressed in. This presupposes relatively high concrete pressures, which are accompanied by correspondingly large pressure fluctuations that stand in the way of the perfect quality of the tunnel lining.

Der Erfindung liegt die Aufgabe zugrunde, eine Schalung der eingangs genannten Art bezüglich der Vorbewegung der Innenschalung so auszu­bilden, daß diese auf die Betonqualität nur noch einen geringen Ein­fluß ausübt.The invention has for its object to form a formwork of the type mentioned with respect to the advance of the inner formwork so that it has only a small influence on the concrete quality.

Die erfindungsgemäße Lösung dieser Aufgabe besteht darin, daß die Innenschalung für ein aufeinanderfolgendes Vorbewegen von jeweils zumindest einem der Schalungselemente gegenüber den übrigen, in Ruhe verbleibenden bzw. gehaltenen Schalungselementen in Tunnel­längsrichtung eingerichtet ist.The solution to this problem according to the invention is that the inner formwork for a successive advance of each at least one of the formwork elements is set up in the longitudinal direction of the tunnel relative to the other formwork elements which remain or are held at rest.

Die Erfindung geht hierbei von der Überlegung aus, daß den ein­gangs geschilderten Problemen am besten beizukommen ist, wenn gleichsam eine schreitende Vorbewegung verwirklicht wird, wobei die zum Vorbewegen eines oder mehrerer Schalungselemente erforderlichen Stützkräfte über die in Ruhe verbleibenden Schalungselemente und Rei­bung in den Ortbeton bzw. das Gebirge abgetragen werden. Entspre­chende Schalung hat sich jedenfalls in der Praxis bestens bewährt.The invention is based on the consideration that the problems described at the outset can best be overcome if, as it were, a moving forward movement is realized, the supporting forces required for moving one or more formwork elements forward via the formwork elements remaining at rest and friction in the in-situ concrete or the mountains are removed. Corresponding formwork has proven itself in practice in any case.

Für die weitere Ausgestaltung bestehen im Rahmen der Erfindung meh­rere Möglichkeiten. So empfiehlt es sich in allen Fällen, die Innen­schalung im Querschnitt gesehen aus mehreren Schalungssegmenten mit zwischengeschalteten elastischen Längsfugeneinlagen aufzubauen, um die Innenschalung bzw. Schalungselemente von bereits erhärtetem Be­ton lösen bzw. gegen dieses pressen zu können. In diesem Zusammen­hang bedeutsam kann auch die Möglichkeit sein, die Schalungssegmen­te jeweils aus mehreren aneinander angelenkten Segmentabschnitten bestehen zu lassen, deren relative Winkelstellung mit Hilfe von Ver­stelleinrichtungen, z. B. Hydraulikzylinderkolbenanordnungen, ein­stellbar und fixierbar sind: auf diese Weise wird eine Anpassung der Segmente an aufzufahrende Radien ermöglicht bzw. die Kurvengängig­keit verbessert.There are several possibilities for further configuration within the scope of the invention. In all cases, it is advisable to build the inner formwork in cross-section from several formwork segments with interposed elastic longitudinal joint inserts in order to be able to detach the inner formwork or formwork elements from already hardened concrete or to be able to press them against it. In this context, it may also be important to have the formwork segments each made up of a plurality of segment sections articulated to one another, the relative angular position of which with the aid of adjusting devices, eg. B. hydraulic cylinder piston assemblies, are adjustable and fixable: in this way, an adaptation of the segments to radii to be driven is made possible and the ability to negotiate curves is improved.

Bei einer ersten bevorzugten Ausführungsform sind die Schalungsseg­mente als Schalungselemente eingesetzt und über Gleitlängsführungen mit zugeordneten Hubtischen an einem Tragrahmen gelagert sowie hier jeweils mit Hilfe einer Vorschubzylinderkolbenanordnung in Tunnel­längsrichtung vorbewegbar. Zur Verwirklichung kompakter Abmessun­gen wird man die Anordnung dabei zweckmäßigerweise so treffen, daß die Vorschubzylinderkolbenanordnung zwischen einer vorderen und einer hinteren Gleitlängsführung bzw. einem vorderen und einem hin­teren Hubtisch angeordnet ist. Ansonsten kann man die Stirnschalung über einstellbare Federn an Kragarmen des Tragrahmens abstützen, so daß die Schalung insgesamt von der Vortriebsmaschine unabhängig eingesetzt werden kann.In a first preferred embodiment, the formwork segments are used as formwork elements and over sliding longitudinal guides with associated lifting tables mounted on a support frame and in each case can be advanced in the longitudinal direction of the tunnel with the aid of a feed cylinder piston arrangement. To achieve compact dimensions, the arrangement will expediently be such that the feed cylinder piston arrangement is arranged between a front and a rear sliding longitudinal guide or a front and a rear lifting table. Otherwise, the front formwork can be supported by adjustable springs on the cantilever arms of the supporting frame, so that the formwork can be used independently of the tunneling machine.

Bei einer anderen bevorzugten Ausführungsform bestehen die Scha­lungselemente aus mit Abstand hintereinander angeordneten Schalungs­ringen, die durch angelenkte Vorschubzylinderkolbenanordnungen mit­einander verbunden und vorbewegbar sind; bei dieser Ausführungs­form wird die Innenschalung peristaltikartig vorbewegt. Damit ein einzelner Schalungsring nicht relativ zu den anderen ausweichen kann, sind die Schalungsringe zweckmäßigerweise an Längsträgern ge­führt. Im übrigen kann auch hier die Stirnschalung über einstellbare Federn an Kragarmen der Tunnelschalung, z. B. des ersten Schalungs­ringes abgestützt sein, um einen von einer Vortriebsmaschine unab­hängigen Einsatz zu ermöglichen.In another preferred embodiment, the formwork elements consist of formwork rings arranged at a distance one behind the other, which are connected to one another and can be moved forward by articulated feed cylinder piston arrangements; In this embodiment, the inner formwork is advanced in a peristaltic manner. So that a single formwork ring cannot move relative to the others, the formwork rings are expediently guided on longitudinal members. For the rest, the front formwork can also be adjusted via adjustable springs on the cantilever arms of the tunnel formwork, e.g. B. the first formwork ring to be supported to enable independent use of a tunneling machine.

Im folgenden wird die Erfindung anhand einer Ausführungsbeispiele darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung

  • Fig. 1 einen Längsschnitt durch eine Schalung.
  • Fig. 2 einen Schnitt A-A durch den Gegenstand der Fig. 1,
  • Fig. 3 einen Längsschnitt durch eine weitere Schalung und
  • Fig. 4 ein Schalungsdetail in vergrößerter Darstellung.
The invention is explained in more detail below with reference to a drawing which shows exemplary embodiments. They show a schematic representation
  • Fig. 1 shows a longitudinal section through a formwork.
  • 2 shows a section AA through the object of FIG. 1,
  • Fig. 3 shows a longitudinal section through another formwork and
  • Fig. 4 is a formwork detail in an enlarged view.

Die in den Figuren dargestellten Schalungen sind für eine Tunnelaus­kleidung mit Ortbeton bestimmt und hinter einer Vortriebsmaschine mit einem Nachlaufschild 1, aber auch ohne Vortriebsmaschine einsetzbar. In ihrem grundsätzlichen Aufbau besteht die Schalung jeweils aus einer Innenschalung 2 und einer Stirnschalung 3. Die Innenschalung 2 ist dabei in mehrere, unabhängig voneinander bewegbare Schalungs­elemente 4 bzw. 5 mit zwischengeschalteten Fugenüberdeckungen 6 auf­gelöst. Bei den Fugenüberdeckungen 6 kann es sich um elastische Fu­geneinlagen, überdeckende Bleche oder ähnliche Konstruktionen han­deln. Die zwischen dem Nachlaufschild 1 und der Innenschalung 2 an­geordnete Stirnschalung 3 ist durch den Ortbeton vorbewegbar, der in den Ringraum 7 eindrückbar ist, der vom Nachlaufschild 1 bzw. Gebir­ge und von der Innenschalung 2 sowie der Stirnschalung 3 gebildet ist. Das Eindrücken des Ortbetons erfolgt durch nicht dargestellte flexible Leitungen durch die Stirnschalung 3 hindurch. In allen Fäl­len ist die Innenschalung 2 für ein aufeinanderfolgendes Vorbewegen von jeweils zumindest einem der Schalungselemente 4 bzw. 5 gegenüber den übrigen, in Ruhe verbleibenden bzw. gehaltenen Schalungselemen­ten 4 bzw. 5 in Tunnellängsrichtung eingerichtet. Wie man insbeson­dere aus Fig. 2 erkennt, ist die Innenschalung 2 im Querschnitt gese­hen aus mehreren Schalungssegmenten 4 mit zwischengeschalteten ela­stischen Längsfugeneinlagen 6 aufgebaut. Fig. 4 zeigt eine in diesem Zusammenhang mögliche Verbesserung bezüglich Kurvengängigkeit; da­nach sind die Schalungssegmente 4 jeweils aus mehreren aneinander angelenkten Segmentabschnitten 41 aufgebaut, deren relative Winkel­stellung mit Hilfe von Verstelleinrichtungen 8 in Form von Hydraulik­zylinderkolbenanordnungen einstellbar und fixierbar sind.The formwork shown in the figures is intended for tunnel lining with in-situ concrete and can be used behind a tunneling machine with a trailing shield 1, but also without a tunneling machine. In its basic structure, the formwork consists of an inner formwork 2 and a front formwork 3. The inner formwork 2 is broken down into several formwork elements 4 and 5, which can be moved independently of one another, with interposed joint covers 6. The joint covers 6 can be elastic joint inlays, covering sheets or similar constructions. The front formwork 3 arranged between the trailing plate 1 and the inner formwork 2 can be advanced by the in-situ concrete, which can be pressed into the annular space 7, which is formed by the trailing plate 1 or mountains and by the inner formwork 2 and the front formwork 3. The in-situ concrete is pressed in through the end formwork 3 by flexible lines (not shown). In all cases, the inner formwork 2 is set up for successively advancing in each case at least one of the formwork elements 4 or 5 relative to the other, at rest, or held formwork elements 4 or 5 in the longitudinal direction of the tunnel. As can be seen in particular from FIG. 2, the inner formwork 2, seen in cross section, is constructed from a plurality of formwork segments 4 with interposed elastic longitudinal joint inserts 6. Fig. 4 shows one in this Connection possible improvement regarding cornering; Thereafter, the formwork segments 4 are each constructed from a plurality of segment sections 41 articulated to one another, the relative angular position of which can be adjusted and fixed with the aid of adjusting devices 8 in the form of hydraulic cylinder piston arrangements.

Bei der Ausführungsform nach den Fig. 1 und 2 sind die Schalungs­segmente 4 als Schalungselemente eingesetzt und dazu über Gleitlängs­führungen 9 mit zugeordneten Hubtischen 10 an einem Tragrahmen 11 gelagert sowie jeweils mit Hilfe einer Vorschubzylinderkolbenanordnung 12 in Tunnellängsrichtung vorbewegbar. Die Vorschubzylinderkolbenan­ordnung 12 ist dabei zwischen einer vorderen und einer hinteren Gleitlängsführung 9 angeordnet. Mit anderen Worten sind zwei Gleit­längsführungen 9 bzw. zugeordnete Hubtische 10 pro Schalungssegment 4 vorgesehen; mit Hilfe der Hubtische 10 können die Schalungssegmente 4 radial entlastet bzw. beaufschlagt werden. Die Stirnschalung 3 ist über einstellbare Federn 13 an Kragarmen 14 des Tragrahmens 11 ab­gestützt. Bei den Federn 13 kann es sich beispielsweise um Hydraulik­zylinderkolbenanordnungen handeln, deren vordere Zylinderkammern über Hydraulikleitungen von einer Gasdruckpolsteranordnung beauf­schlagt sind.In the embodiment according to FIGS. 1 and 2, the formwork segments 4 are used as formwork elements and are mounted for this purpose on sliding longitudinal guides 9 with associated lifting tables 10 on a support frame 11 and can be advanced in the longitudinal direction of the tunnel with the aid of a feed cylinder piston arrangement 12. The feed cylinder piston arrangement 12 is arranged between a front and a rear sliding longitudinal guide 9. In other words, two sliding longitudinal guides 9 or associated lifting tables 10 are provided per formwork segment 4; with the help of the lifting tables 10, the formwork segments 4 can be radially relieved or acted upon. The front formwork 3 is supported on adjustable arms 13 on cantilever arms 14 of the support frame 11. The springs 13 can be, for example, hydraulic cylinder piston arrangements, the front cylinder chambers of which are acted upon by a gas pressure cushion arrangement via hydraulic lines.

Bei der Ausführungsform nach Fig. 3 bestehen die Schalungselemente aus mit Abstand hintereinander angeordneten Schalungsringen 5, die durch angelenkte Vorschubzylinderkolbenanordnungen 12 miteinander verbunden und peristaltikartig bewegbar sind. Um ein Ausweichen ein­zelner Schalungsringe 5 zu vermeiden, sind die Schalungsringe 5 mit Führungselementen 15, z. B. Stützrollen an Längsträgern 16 geführt; es versteht sich von selbst, daß die Führungselemente 15 so ausgebil­det sind, daß eine Lenkung möglich ist.In the embodiment according to FIG. 3, the formwork elements consist of formwork rings 5 arranged at a distance from one another, which are connected to one another by articulated feed cylinder piston arrangements 12 and can be moved in a peristaltic manner. In order to avoid the escape of individual formwork rings 5, the formwork rings 5 are included Guide elements 15, z. B. Support rollers on side members 16; it goes without saying that the guide elements 15 are designed so that steering is possible.

Die Funktionsweise der Vorrichtungen ergibt sich unschwer aus den Figuren. Bei der Ausführungsform nach Fig. 1 werden die Schalungs­segmente 4 und bei der Ausführungsform nach Fig. 3 die Schalungs­ringe 5 einzeln oder in Gruppen vorbewegt. Wesentlich ist dabei, daß die Reibungskräfte, die zwischen den in Ruhe verbleibenden Scha­lungselementen 4 bzw. 5 und dem Beton auftreten, stets größer sind als die entsprechenden Kräfte der vorbewegten Schalungselemente 4 bzw. 5. Durch radiales Entlasten bzw. Beaufschlagen der jeweiligen Schalungselemente 4 bzw. 5 läßt sich alles das entsprechend einrich­ten.The functioning of the devices can be seen from the figures. In the embodiment according to FIG. 1, the formwork segments 4 and in the embodiment according to FIG. 3, the formwork rings 5 are moved forward individually or in groups. It is important that the frictional forces that occur between the formwork elements 4 and 5 remaining at rest and the concrete are always greater than the corresponding forces of the advanced formwork elements 4 and 5. By radially relieving or loading the respective formwork elements 4 and 5 respectively 5 All of this can be set up accordingly.

Claims (9)

1. Hinter einer Vortriebsmaschine mit einem Nachlaufschild einsetzba­re Schalung für eine Tunnelauskleidung mit Ortbeton, bestehend aus einer Tunnelschalung und einer Stirnschalung, wobei die Innenscha­lung in mehrere, unabhängig voneinander bewegbare Schalungselemen­te mit zwischengeschalteten Fugenüberdeckungen aufgelöst ist und die zwischen dem Nachlaufschild und der Innenschalung angeordnete Stirn­schalung durch den Ortbeton vorbewegbar ist, der in den vom Nach­laufschild bzw. Gebirge und von der Innenschalung sowie der Stirn­schalung gebildeten Ringraum eindrückbar ist, dadurch ge­kennzeichnet, daß die Innenschalung (2) für ein aufein­anderfolgendes Vorbewegen von jeweils zumindest einem der Schalungs­elemente (4 bzw. 5) gegenüber den übrigen in Ruhe verbleibenden bzw. gehaltenen Schalungselementen (4 bzw. 5) in Tunnellängsrichtung eingerichtet ist.1.For a tunnel boring machine with a trailing shield, formwork can be used for tunnel lining with in-situ concrete, consisting of a tunnel formwork and a front formwork, the inner formwork being broken down into several, independently movable formwork elements with interposed joint coverings and the front formwork arranged between the trailing shield and the inner formwork the in-situ concrete can be moved forward and can be pressed into the annular space formed by the trailing shield or mountains and by the inner formwork and the front formwork, characterized in that the inner formwork (2) for successive advancement of at least one of the formwork elements (4 or 5) is set up in the longitudinal direction of the tunnel compared to the other formwork elements (4 or 5) which remain or are held at rest. 2. Schalung nach Anspruch 1, dadurch gekennzeichnet, daß die Innen­schalung (2) im Querschnitt gesehen aus mehreren Schalungselementen (4) mit zwischengeschalteten elastischen Längsfugeneinlagen (6) aufge­baut ist.2. Formwork according to claim 1, characterized in that the inner formwork (2), seen in cross section, is constructed from a plurality of formwork elements (4) with interposed elastic longitudinal joint inserts (6). 3. Schalung nach Anspruch 2, dadurch gekennzeichnet, daß die Scha­lungselemente (4) jeweils aus mehreren aneinander angelenkten Seg­mentabschnitten (41) bestehen, deren relative Winkelstellung mit Hilfe von Verstelleinrichtungen (8) einstellbar und fixierbar sind.3. Formwork according to claim 2, characterized in that the formwork elements (4) each consist of a plurality of articulated segment sections (41) whose relative angular position can be adjusted and fixed with the aid of adjusting devices (8). 4. Schalung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Schalungselemente (4) als Schalungselemente eingesetzt sind und über Gleitlängsführungen (9) mit zugeordneten Hubtischen (10) an einem Tragrahmen (11) gelagert sowie jeweils mit Hilfe einer Vorschubzylin­derkolbenanordnung (12) in Tunnellängsrichtung vorbewegbar sind.4. Formwork according to claim 2 or 3, characterized in that the formwork elements (4) are used as formwork elements and over Longitudinal sliding guides (9) with associated lifting tables (10) are mounted on a supporting frame (11) and can be advanced in the longitudinal direction of the tunnel with the aid of a feed cylinder piston arrangement (12). 5. Schalung nach Anspruch 4, dadurch gekennzeichnet, daß die Vor­schubzylinderkolbenanordnung (12) zwischen einer vorderen und einer hinteren Gleitlängsführung (9) angeordnet ist.5. Formwork according to claim 4, characterized in that the feed cylinder piston arrangement (12) is arranged between a front and a rear sliding longitudinal guide (9). 6. Schalung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Stirnschalung (3) über einstellbare Federn (13) an Kragarmen (14) des Tragrahmens (11) abgestützt ist.6. Formwork according to claim 4 or 5, characterized in that the front formwork (3) is supported by adjustable springs (13) on cantilever arms (14) of the support frame (11). 7. Schalung nach einem der Ansprüche 1 bis 3, dadurch gekennzeich­net, daß die Schalungselemente aus mit Abstand hintereinander ange­ordneten Schalungsringen (5) bestehen, die durch angelenkte Vorschub­zylinderkolbenanordnungen (12) miteinander verbunden und bewegbar sind.7. Formwork according to one of claims 1 to 3, characterized in that the formwork elements consist of formwork rings (5) which are arranged at a distance from one another and which are connected to one another and movable by articulated feed cylinder piston arrangements (12). 8. Schalung nach Anspruch 7, dadurch gekennzeichnet, daß die Scha­lungsringe (5) an Längsträgern (16) geführt sind.8. Formwork according to claim 7, characterized in that the formwork rings (5) are guided on longitudinal beams (16). 9. Schalung nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Stirnschalung (3) über einstellbare Federn (13) an Kragarmen (14) der Tunnelschalung abgestützt ist.9. Formwork according to claim 7 or 8, characterized in that the front formwork (3) is supported by adjustable springs (13) on cantilever arms (14) of the tunnel formwork.
EP88108027A 1987-07-25 1988-05-19 Shuttering for lining a tunnel with concrete cast in situ Expired - Lifetime EP0301188B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873724769 DE3724769A1 (en) 1987-07-25 1987-07-25 FORMWORK FOR A TUNNEL LINING WITH LOCAL CONCRETE
DE3724769 1987-07-25

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EP0301188A1 true EP0301188A1 (en) 1989-02-01
EP0301188B1 EP0301188B1 (en) 1991-08-07

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US (1) US4856936A (en)
EP (1) EP0301188B1 (en)
JP (1) JPH0768876B2 (en)
KR (1) KR970007347B1 (en)
DE (1) DE3724769A1 (en)
DK (1) DK282788A (en)

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EP0483445A1 (en) * 1989-05-11 1992-05-06 VOEST-ALPINE Bergtechnik Gesellschaft m.b.H Driving shield

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Also Published As

Publication number Publication date
EP0301188B1 (en) 1991-08-07
DK282788A (en) 1989-02-16
DE3724769A1 (en) 1989-02-02
JPH0768876B2 (en) 1995-07-26
KR890002520A (en) 1989-04-10
US4856936A (en) 1989-08-15
DE3724769C2 (en) 1991-11-14
KR970007347B1 (en) 1997-05-07
DK282788D0 (en) 1988-05-24
JPS6433399A (en) 1989-02-03

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