EP0513083B1 - Automatically advancing supporting and sliding form for introducing an in-situ concrete lining - Google Patents

Automatically advancing supporting and sliding form for introducing an in-situ concrete lining Download PDF

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Publication number
EP0513083B1
EP0513083B1 EP91903062A EP91903062A EP0513083B1 EP 0513083 B1 EP0513083 B1 EP 0513083B1 EP 91903062 A EP91903062 A EP 91903062A EP 91903062 A EP91903062 A EP 91903062A EP 0513083 B1 EP0513083 B1 EP 0513083B1
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EP
European Patent Office
Prior art keywords
shuttering
formwork
sliding
supporting
segment
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EP91903062A
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German (de)
French (fr)
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EP0513083A1 (en
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Heinz-Theo Dipl.-Ing. Walbröhl
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OFF.TA LIC.ZA PUB.CO NON ESCLUSIVA OFF.TA DI LICEN
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WALBROEHL H T DIPL ING
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Priority to AT91903062T priority Critical patent/ATE99770T1/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—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 self-advancing supporting and sliding formwork for introducing an in-situ concrete lining according to the preamble of claim 1.
  • Such supporting and sliding formwork can usually be used optionally in continuous, discontinuous or batch-wise concreting operation.
  • a formwork for a tunnel lining with in-situ concrete is known, the formwork body of which is divided into several individual formwork elements lying next to one another in the circumferential direction.
  • the formwork elements are each supported by lifting tables serving as a substructure, the formwork elements overall forming an outer formwork skin.
  • a front formwork is also provided, which closes the front of the annular space between the eruption wall of the building and the formwork elements.
  • the entire formwork body is held by a support structure consisting of a plurality of support frames arranged one behind the other, the supporting forces to be exerted by the formwork elements on the concrete being brought in being brought to the effective formwork outer surface by the hydraulically actuated lifting tables.
  • each individual formwork element must be advanced in the longitudinal direction of the tunnel via its own feed cylinder piston arrangement. Consequently, the known formwork is complicated in its construction and, due to the corresponding number of feed cylinder piston arrangements, is fragile and expensive to purchase.
  • the propulsion takes place with the help of the pressure of the concrete which is pressed into the part of the annular space located behind the end formwork.
  • the known generic formwork is suitable for a continuous, discontinuous or batch-wise concreting operation.
  • the compressive forces of the concrete pumped in the area of the face formwork are not sufficient to be able to move the entire formwork forward.
  • tensile or compressive forces must be made available that are external, i.e. outside of the formwork itself.
  • formworks which consist of elements which can be folded or lowered and which rest on a supporting frame which can be moved in the longitudinal axis of the tunnel.
  • This formwork has the disadvantage that the associated formwork and set-up work is very time-consuming and costly.
  • tunnel or tunnel construction or chimney construction require concrete formwork that can slide forward continuously or discontinuously on the one hand and that on the other hand can be converted to a batching concreting operation without any effort, e.g. if special reinforcements are to be installed in sections of the track that are subject to particularly high pressure or if recesses for niches, cross passages etc. are to be made.
  • the object of the invention is to propose a self-striding support and sliding formwork of the type specified in the preamble of claim 1, which in conjunction with a free choice between a continuous, discontinuous or batch-wise concreting operation, the advancement of the formwork in all three operating modes under the usual operating conditions enables, without the need for external support of the tensile or compressive forces at any time, ie to create formwork that is self-advancing in all three operating modes.
  • a formwork body 10 is provided, which is subdivided into a plurality of formwork segment groups 12, 22 and 32 lying parallel to one another in the circumferential direction.
  • each includes Formwork segment group 12, 22, 32 four individual, axially parallel formwork segments 14.
  • Each formwork segment 14 comprises a formwork element in the form of a formwork sheet 16 which is in contact with the concrete and which is connected to hydraulically actuatable transmission members, which in the embodiment shown in FIG. 5 are inflatable hoses 50 load-bearing substructure in the form of a longitudinal beam 18 is connected.
  • the longitudinal beams 18 in turn are supported on support frames, of which the frontmost support frame 40 is shown in FIGS. 1 and 2, while further support frames 42 and 44 are shown in FIGS. 3, 4 and 6.
  • the front formwork 34 is supported on the support frame 40, which is the frontmost in the direction of advance, by means of a hydraulically variable support guide 70.
  • the individual formwork segments 14 are longitudinally displaceable relative to their adjacent formwork segments, while each formwork sheet 16 is variable in height with respect to its longitudinal beam 18.
  • Sealing elements which are arranged along the longitudinal sides of the formwork sheets 16 between them, seal the above-mentioned annular space, ie they prevent concrete from escaping into the interior of the formwork body 16.
  • the formwork sheet 16 and the associated longitudinal member 18 of each formwork segment 14 are in the longitudinal direction coupled to one another in a non-displaceable manner, while the hydraulic transmission elements in the form of the expandable hoses 50 in each formwork segment 14 are arranged between the formwork sheet 16 and the longitudinal beam 18.
  • formwork segments 14 are combined into different formwork segment groups 12, 22, 32.
  • As many formwork segment groups 12, 22, 32 are provided for each sliding formwork as there are support frames 40, 42, 44.
  • Each of the formwork segment groups 12, 22, 32 is firmly connected to another of the support frames 40, 42, 44 and is slidably mounted on the remaining support frame.
  • each formwork segment group forming approximately 1/3 of the formwork skin in the illustrated embodiment.
  • the expected frictional forces in the respective areas of the formwork skin and / or the frictional forces which are effective on the formwork segments when these are to be advanced from the rest position are factors which influence this choice.
  • FIG. 6 shows a two-part design of a sliding formwork in the form of a progressive expansion formwork 2 and a similar supporting formwork 4.
  • the formwork segments 14 of the two formworks 2 and 4 are arranged in alignment in the longitudinal direction.
  • five groups of expandable hoses 50 are provided, which are accommodated on the back of the associated formwork sheet 16 or 16a in associated chambers, which are separated by separating webs 20 and 20a are limited.
  • the separating webs 20 and 20a engage between and around the hoses 50.
  • the outer dividing webs 20a are designed to be elongated and engage as lateral holding elements around the associated longitudinal member 18, so that they cause a transverse displacement between the formwork sheet 16 or 16a and the longitudinal member 18 prevent.
  • the groups of inflatable tubes 50 can themselves be subdivided into individual chambers.
  • a hydraulic control arrangement 60 is provided, with which a preset pressure value can optionally be maintained in each of the hoses 50 or hose chambers.
  • the hydraulic arrangement 60 comprises a hydraulic pump and for each hose 50 or each chamber an associated pressure relief valve, the opening pressure of which is adjustable.
  • the formwork sheet 16a is biased by tension springs in a position radially retracted relative to the formwork skin. Furthermore, the formwork sheet 16a has an elastically flexible cover 17 on its side facing the formwork skin.
  • an arbitrary support frame in FIG. 4a the middle support frame 42 is used with the help of the presses 52 arranged between the support frames 40, 42, 44, including the formwork segment group firmly connected to this support frame 42 (which is not shown in detail in the drawing) is) advanced by a preselected step length x.
  • the inflatable hoses 50 of the assigned formwork segment group are switched to transport, i.e. the pressure prevailing in the inflatable hoses is kept at a preselected pressure value by means of assigned pressure limiting valves and the hydraulic pump provided in the hydraulic arrangement 60.
  • the formwork sheets 16 and 16a adjacent to the concrete wall can react to changes in the course of the surface of the concrete wall, i.e.
  • the rear support frame 44 with its associated formwork segment group and then the front support frame 40 with its associated formwork segment group are each reduced by Stride length x advanced.
  • the formwork is supported on an unspecified roadway by hydraulic support presses, which are not specified.
  • the pressure in these support presses is also controlled so that unevenness in the road, as well as convergences or divergences of the road in relation to the longitudinal axis of the formwork, are compensated for by the corresponding support cylinders being moved in or out accordingly.
  • the front formwork 34 is sealed along the circumference of the annular space to be concreted by seals that are not shown. Furthermore, the front formwork 34 is guided by a pressure piston of the hydraulic support guide 70 which is longitudinally displaceable in a pressure cylinder. Since the support guide 70 is firmly attached to the foremost support frame 40 in the advancing direction, the relative position of the front formwork 34 can be kept guided in relation to the annular closed foremost cross section of the formwork skin, regardless of whether all formwork segment groups together form the front ring surface or one or more of the formwork segment groups have been advanced. In addition, the hydraulic guidance of the front formwork 34 enables the formwork body 10 with its formwork skin to be advanced within certain limits independently of the introduction of the concrete into the annular space.
  • the entire formwork can be moved forward at once, as in the known generic supporting and sliding formwork, without the previously described resolution of the formwork movement being necessary in partial steps of the formwork segment groups.
  • the formwork sheets 16 of each formwork segment group 12, 22, 32 can be pulled off the concrete wall before their further advance in order to prevent frictional engagement.
  • the forward movement of the entire support and sliding formwork can thus take place in partial sections, the individual formwork segments or formwork segment groups being pressed against the concrete wall again after advancing in order to be able to absorb the reaction forces which occur when the following formwork segment groups are advanced.
  • the two-part design of the supporting and sliding formwork shown in FIG. 6 is suitable in such cases when the concrete section to be stripped does not yet have the required load-bearing capacity.
  • the post-supporting formwork takes on the task of supporting until the required load-bearing capacity is reached in the assigned concrete section.
  • the post-supporting formwork 4 is basically constructed in the same way as the advancing expansion formwork 2.
  • the formwork segment groups of the expansion formwork 2 and the support formwork 4 are of course selected from one another such that they are aligned one behind the other and can advance in the longitudinal direction, so that no disadvantage there are large gaps between the formwork segment groups.
  • the support formwork segments are advantageously removed from the concrete wall before the forward movement.
  • they are equipped with tension springs in the embodiment shown in FIG. 7, which prestress the formwork sheet 16a on the associated longitudinal beam 18. If the inflatable hoses 50 are switched to a lower pressure value or depressurized, the formwork sheets 16a are pulled back from the concrete wall by the tension springs.
  • the formwork sheet 16a has on its surface facing the concrete wall a cover 17 made of resilient material, which ensures that the supporting formwork segment supports the entire surface thereof even in uneven areas of the concrete.
  • the supporting formwork segments with a smaller width than the actual formwork segments or, if the concrete already has a corresponding load-bearing capacity, only certain areas, e.g. to support the ridge areas.
  • Fig. 8 shows a further embodiment for hydraulic support of the formwork element.
  • a flexible hose 55 is arranged between the opposite surfaces of the longitudinal beam 18 and the formwork sheet 16.
  • the chamber defined in this way is closed off along the long sides by long side webs 20 a, which are attached to the formwork sheet 16.
  • the flexible hose 55 has only a sealing function.
  • the pressure of the hydraulic fluid is taken up by the walls 16, 18 and 20a enclosing the chamber or the cavity.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

A sliding form with a form body (10) comprises a plurality of form segment groups (12, 22, 32) arranged contiguously in the peripheral direction. Each form segment group (12, 22, 32) is rigidly connected to a different supporting frame of several supporting frames (40) and is slidingly mounted on the remaining supporting frames. Each form segment (14) comprises an outer sheet metal form plate (16) which abuts on an associated longitudinal support (18) via hydraulic members. The sheet metal form plate (16) and associated longitudinal support (18) are coupled with each other so that they cannot slide relative to each other longitudinally. Hydraulic presses (52) for sliding each supporting frame individually relative to the other supporting frames are arranged between the individual supporting frames.

Description

Die Erfindung betrifft eine selbstschreitende Stütz- und Gleitschalung zum Einbringen einer Ortbetonauskleidung gemäß dem Oberbegriff des Anspruchs 1. Eine solche Stütz- und Gleitschalung ist üblicherweise wahlweise in kontinuierlichem, diskontinuierlichem oder absatzweisem Betonierbetrieb einsetzbar.The invention relates to a self-advancing supporting and sliding formwork for introducing an in-situ concrete lining according to the preamble of claim 1. Such supporting and sliding formwork can usually be used optionally in continuous, discontinuous or batch-wise concreting operation.

Aus der EP-A-0 301 118 ist eine Schalung für eine Tunnelauskleidung mit Ortbeton bekannt, dessen Schalungskörper in mehrere in Umfangrichtung nebeneinander liegende einzelne Schalungselemente unterteilt ist. Die Schalungselemente sind jeweils von, als Unterkonstruktion dienenden Hubtischen abgestützt, wobei die Schalungselemente insgesamt eine äußere Schalungshaut bilden. Ferner ist eine Stirnschalung vorgesehen, die die Vorderseite des ringförmigen Raumes zwischen der Ausbruchswandung des Bauwerkes und den Schalungselementen abschließt. Der gesamte Schalungskörper wird von einer Stützkonstruktion aus mehreren hintereinander angeordneten Stützrahmen gehalten, wobei die durch die Schalungselemente auf den eingebrachten Beton auszuübenden Abstützkräfte durch die hydraulisch betätigbaren Hubtische auf die wirksame Schalungsaußenfläche bringbar sind. Bei dieser bekannten Schalung ist es insbesondere von Nachteil, daß jedes einzelne Schalungselement über eine eigene Vorschubzylinderkolbenanordnung in Tunnellängsrichtung vorbewegt werden muß. Folglich ist die bekannte Schalung in ihrem Aufbau kompliziert sowie durch die entsprechende Anzahl von Vorschubzylinderkolbenanordnungen anfällig und teuer in der Anschaffung.From EP-A-0 301 118 a formwork for a tunnel lining with in-situ concrete is known, the formwork body of which is divided into several individual formwork elements lying next to one another in the circumferential direction. The formwork elements are each supported by lifting tables serving as a substructure, the formwork elements overall forming an outer formwork skin. A front formwork is also provided, which closes the front of the annular space between the eruption wall of the building and the formwork elements. The entire formwork body is held by a support structure consisting of a plurality of support frames arranged one behind the other, the supporting forces to be exerted by the formwork elements on the concrete being brought in being brought to the effective formwork outer surface by the hydraulically actuated lifting tables. With this known formwork, it is in particular disadvantageous that each individual formwork element must be advanced in the longitudinal direction of the tunnel via its own feed cylinder piston arrangement. Consequently, the known formwork is complicated in its construction and, due to the corresponding number of feed cylinder piston arrangements, is fragile and expensive to purchase.

Bei einer weiteren, aus der DE-A-3 043 312 bekannten selbstschreitenden Stütz- und Gleitschalung erfolgt der Vortrieb mit Hilfe des Druckes des Betons, der in den hinter der Stirnschalung befindlichen Teil des Ringraumes eingepreßt wird. Prinzipiell ist die bekannte gattungsgemäße Gleitschalung für einen kontinuierlichen, diskontinuierlichen oder absatzweisen Betonierbetrieb geeignet. Jedoch reichen selbst beim kontinuierlichen Betonierbetrieb oft, insbesondere bei relativ dünnen Betonwandstärken, die Druckkräfte des im Bereich der Stirnschalung eingepumpten Betons nicht aus, um die gesamte Schalung vorwärtsbewegen zu können. Beim diskontinuierlichen oder absatzweisen Betonierbetrieb, bei dem die Vorwärtsbewegung der Schalung durch Betonierpausen unterbrochen ist, müssen Zug- oder Druckkräfte zur Verfügung gestellt werden, die sich extern, d.h. außerhalb der Schalung selber, abstützen können.In a further self-advancing supporting and sliding formwork known from DE-A-3 043 312, the propulsion takes place with the help of the pressure of the concrete which is pressed into the part of the annular space located behind the end formwork. In principle, the known generic formwork is suitable for a continuous, discontinuous or batch-wise concreting operation. However, even in continuous concreting operations, especially with relatively thin concrete wall thicknesses, the compressive forces of the concrete pumped in the area of the face formwork are not sufficient to be able to move the entire formwork forward. In the case of discontinuous or batch-wise concreting operations, in which the formwork's forward movement is interrupted by concreting breaks, tensile or compressive forces must be made available that are external, i.e. outside of the formwork itself.

Für den absatzweisen Betonierbetrieb, bei dem das Schalen und Betonieren zeitlich nacheinander erfolgt, sind Schalungen bekannt, die aus einklappbaren bzw. absenkbaren Elementen bestehen, die auf einem in Tunnellängsachse verfahrbaren Traggerüst aufliegen. Diese Schalungen haben den Nachteil, daß die hiermit verbundenen Schal- und Einrichtarbeiten sehr zeit- und lohnaufwendig sind.For batch-wise concreting operations, in which the formwork and concreting take place in succession, formworks are known which consist of elements which can be folded or lowered and which rest on a supporting frame which can be moved in the longitudinal axis of the tunnel. This formwork has the disadvantage that the associated formwork and set-up work is very time-consuming and costly.

Ein weiterer Nachteil besteht darin, daß die Schalung erst dann vom Beton entfernt werden kann, wenn letzterer insgesamt seine geforderte Tragfahigkeit erreicht hat, was zu wirtschaftlich relevanten Wartezeiten führt.Another disadvantage is that the formwork can only be removed from the concrete when the latter has reached its required load-bearing capacity, which leads to economically relevant waiting times.

Die Besonderheiten des Stollen- oder Tunnelbaus oder auch eines Kaminbaus erfordern eine Betonschalung, die einerseits kontinuierlich oder diskontinuierlich vorwärtsgleiten kann und die andererseits bei besonderen Erfordernissen ohne Aufwand auf einen absatzweisen Betonierbetrieb umgestellt werden kann, z.B. wenn besondere Bewehrungen in besonders druckbelasteten Streckenabschnitten einzubringen oder Aussparungen für Nischen, Querschläge usw. hergestellt werden sollen.The peculiarities of tunnel or tunnel construction or chimney construction require concrete formwork that can slide forward continuously or discontinuously on the one hand and that on the other hand can be converted to a batching concreting operation without any effort, e.g. if special reinforcements are to be installed in sections of the track that are subject to particularly high pressure or if recesses for niches, cross passages etc. are to be made.

Aufgabe der Erfindung ist es, eine selbstschreitende Stütz- und Gleitschalung der im Oberbegriff des Anspruchs 1 angegebenen Gattung vorzuschlagen, die in Verbindung mit einer freien Wahl zwischen einem kontinuierlichen, diskontinuierlichen oder absatzweisen Betonierbetrieb das Vortreiben der Schalung in allen drei Betriebsarten unter den üblichen vorkommenden Betriebsbedingungen ermöglicht, ohne daß hierfür zu irgendeiner Zeit eine externe Abstützung der Zug- oder Druckkräfte erforderlich ist, d.h. eine Schalung zu schaffen, die bei allen drei Betriebsarten aus sich selber heraus selbstschreitend ist.The object of the invention is to propose a self-striding support and sliding formwork of the type specified in the preamble of claim 1, which in conjunction with a free choice between a continuous, discontinuous or batch-wise concreting operation, the advancement of the formwork in all three operating modes under the usual operating conditions enables, without the need for external support of the tensile or compressive forces at any time, ie to create formwork that is self-advancing in all three operating modes.

Die erfindungsgemäße Lösung dieser Aufgabe ergibt sich aus den kennzeichnenden Merkmalen des Anspruchs 1 in Verbindung mit dessen Gattungsmerkmalen.The achievement of this object results from the characterizing features of claim 1 in connection with the generic features.

Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous developments of the invention result from the subclaims.

Die Erfindung wird im folgenden anhand der Zeichnung beispielsweise beschrieben; in dieser zeigt:

Fig. 1
eine schematische Querschnittsansicht eines Tunnels mit kreisförmigem Querschnitt, bei welchem das gesamte Profil in einem Arbeitsgang betoniert wird;
Fig. 2
eine Querschnittsansicht eines Tunnels mit torbogenförmigem Querschnitt und einer Bodensohle, bei dem die Bodensohle vorbetoniert worden ist und die Seitenwände und Firste mit einer erfindungsgemäßen Schalung betoniert werden;
Fig. 3
einen schematischen Längsschnitt der Gleitschalung nach Fig. 2 mit einem Ausführungsbeispiel für eine Stirnschalung;
Fig. 4a, b + c
verschiedene Bewegungsschritte einer erfindungsgemäßen Gleitschalung;
Fig. 5
eine schematische Darstellung eines Schalungssegmentes;
Fig. 6
eine Ausführungsvariante, bei der die Gleitschalung zweiteilig in Form einer vorausschreitenden Ausbauschalung und einer gleichartigen nachfolgenden Stützschalung ausgebildet ist;
Fig. 7
eine Querschnittsansicht eines Schalungssegmentes der Stützschalung in Fig. 6. und
Fig. 8
eine schematische Querschnittsansicht einer anderen Ausführungsform der hydraulischen Abstützung der Schalungselemente.
The invention is described below with reference to the drawing, for example; in this shows:
Fig. 1
is a schematic cross-sectional view of a tunnel with a circular cross-section, in which the entire profile is concreted in one operation;
Fig. 2
a cross-sectional view of a tunnel with an arch-shaped cross section and a floor sole, in which the floor sole has been pre-concreted and the side walls and roof are concreted with a formwork according to the invention;
Fig. 3
a schematic longitudinal section of the sliding formwork according to Figure 2 with an embodiment for a face formwork.
4a, b + c
different movement steps of a sliding formwork according to the invention;
Fig. 5
a schematic representation of a formwork segment;
Fig. 6
an embodiment variant in which the sliding formwork is formed in two parts in the form of a progressive expansion formwork and a similar subsequent formwork support;
Fig. 7
a cross-sectional view of a formwork segment of the support formwork in Fig. 6. and
Fig. 8
is a schematic cross-sectional view of another embodiment of the hydraulic support of the formwork elements.

Bei der in Fig. 1 ebenso wie bei der in Fig. 2 im Querschnitt dargestellten Ausführungsform einer selbstschreitenden Stütz- und Gleitschalung ist ein Schalungskörper 10 vorgesehen, der in mehrere in Umfangsrichtung achsparallel nebeneinander liegende Schalungssegmentgruppen 12, 22 und 32 unterteilt ist. Bei den dargestellten Ausführungsformen umfaßt jede Schalungssegmentgruppe 12, 22, 32 vier einzelne, achsparallele Schalungssegmente 14. Jedes Schalungssegment 14 umfaßt ein am Beton anliegendes Schalungselement in Form eines Schalungsbleches 16, welches über hydraulisch beaufschlagbare Übertragungsglieder, die in der in Fig. 5 dargestellten Ausführungsform blähbare Schläuche 50 sind, mit einer tragenden Unterkonstruktion in Form eines Längsträgers 18 verbunden ist. Die Längsträger 18 ihrerseits sind auf Stützrahmen aufgelagert, von denen in den Fig. 1 und 2 der in Schreitrichtung vorderste Stützrahmen 40 gezeigt ist, wahrend in den Fig. 3, 4 und 6 weitere Stützrahmen 42 und 44 dargestellt sind.In the embodiment of a self-advancing supporting and sliding formwork shown in cross section in FIG. 1 as well as in FIG. 2, a formwork body 10 is provided, which is subdivided into a plurality of formwork segment groups 12, 22 and 32 lying parallel to one another in the circumferential direction. In the illustrated embodiments, each includes Formwork segment group 12, 22, 32 four individual, axially parallel formwork segments 14. Each formwork segment 14 comprises a formwork element in the form of a formwork sheet 16 which is in contact with the concrete and which is connected to hydraulically actuatable transmission members, which in the embodiment shown in FIG. 5 are inflatable hoses 50 load-bearing substructure in the form of a longitudinal beam 18 is connected. The longitudinal beams 18 in turn are supported on support frames, of which the frontmost support frame 40 is shown in FIGS. 1 and 2, while further support frames 42 and 44 are shown in FIGS. 3, 4 and 6.

Samtliche Schalungsbleche 16 aller Schalungssegmentgruppen bilden zusammen eine äußere Schalungshaut des Schalungskörpers 10. Nach Fig. 3 umfaßt die Stütz- und Gleitschalung außerdem eine Stirnschalung 34, die die Vorderseite eines Ringraumes abschließt, der zwischen der Außenwandung des Bauwerkes bzw. einer dort angebrachten Außenschalung, z.B. einer äußeren Betonschale um den Schalungskörper 10 gebildet ist. Die Stirnschalung 34 ist über eine hydraulisch längenveränderliche Abstützführung 70 an dem in Vortriebsrichtung vordersten Stützrahmen 40 abgestützt.All formwork sheets 16 of all formwork segment groups together form an outer formwork skin of the formwork body 10. an outer concrete shell around the formwork body 10 is formed. The front formwork 34 is supported on the support frame 40, which is the frontmost in the direction of advance, by means of a hydraulically variable support guide 70.

Die einzelnen Schalungssegmente 14 sind relativ zu ihren benachbarten Schalungssegmenten längsverschieblich, während jedes Schalungsblech 16 in Bezug auf seinen Längsträger 18 höhenveränderlich ist. Dichtelemente, die entlang den Längsseiten der Schalungsbleche 16 zwischen diesen angeordnet sind, dichten den vorstehend erwähnten Ringraum ab, d.h. sie verhindern ein Auslaufen von Beton, in das Innere des Schalungskörpers 16. Das Schalungsblech 16 und der zugeordnete Längsträger 18 jedes Schalungssegmentes 14 sind in Längsrichtung gegeneinander unverschieblich gekoppelt, während die hydraulischen Übertragungsglieder in Form der blähbaren Schläuche 50 bei jedem Schalungssegment 14 zwischen dem Schalungsblech 16 und dem Längsträger 18 angeordnet sind.The individual formwork segments 14 are longitudinally displaceable relative to their adjacent formwork segments, while each formwork sheet 16 is variable in height with respect to its longitudinal beam 18. Sealing elements, which are arranged along the longitudinal sides of the formwork sheets 16 between them, seal the above-mentioned annular space, ie they prevent concrete from escaping into the interior of the formwork body 16. The formwork sheet 16 and the associated longitudinal member 18 of each formwork segment 14 are in the longitudinal direction coupled to one another in a non-displaceable manner, while the hydraulic transmission elements in the form of the expandable hoses 50 in each formwork segment 14 are arranged between the formwork sheet 16 and the longitudinal beam 18.

Je nach Anwendungsfall sind jeweils mehrere Schalungssegmente 14 zu unterschiedlichen Schalungssegmentgruppen 12, 22, 32 zusammengefaßt. Dabei sind für jede Gleitschalung ebensoviele Schalungssegmentgruppen 12, 22, 32 vorgesehen, wie Stützrahmen 40, 42, 44 vorhanden sind. Jede der Schalungssegmentgruppen 12, 22, 32 ist mit einem anderen der Stützrahmen 40, 42, 44 fest verbunden und auf den verbleibenden Stützrahmen gleitverschieblich gelagert.Depending on the application, several formwork segments 14 are combined into different formwork segment groups 12, 22, 32. As many formwork segment groups 12, 22, 32 are provided for each sliding formwork as there are support frames 40, 42, 44. Each of the formwork segment groups 12, 22, 32 is firmly connected to another of the support frames 40, 42, 44 and is slidably mounted on the remaining support frame.

Wie aus den Fig. 3, 4 und 6 ersichtlich ist, sind zwischen den einzelnen Stützrahmen 40, 42, 44 voneinander unabhängig betätigbare Druck-/Schub-Glieder in Form von hydraulischen Pressen 52 angeordnet, mit denen jeder Stützrahmen 40, 42, 44 für sich gegenüber den verbleibenden Stützrahmen verschiebbar ist.3, 4 and 6 can be seen, between the individual support frames 40, 42, 44 independently operable pressure / push members in the form of hydraulic presses 52 are arranged, with which each support frame 40, 42, 44 for is displaceable relative to the remaining support frame.

Bei den in den Fig. 1 und 2 dargestellten Ausführungsformen sind drei Schalungssegmentgruppen 12, 22, 32 und drei Stützrahmen 40, 42, 44 vorgesehen, wobei bei der dargestellten Ausführungsform jede Schalungssegmentgruppe etwa 1/3 der Schalungshaut bildet. Je nach Anwendungsfall ist es jedoch ohne weiteres möglich, mehr Stützrahmen und Schalungssegmentgruppen vorzusehen und/oder die einzelnen Schalungssegmentgruppen unterschiedlich breit zu wählen, z.B. indem einander benachbarte Schalungssegmente in benachbarten Schalungssegmentgruppen beim einen Anwendungsfall einer Gruppe und beim anderen Anwendungsfall der anderen Gruppe zugeordnet und mit dem Stützrahmen fest verbunden werden, der zur Verschiebung der Gruppe dient. Von Einfluß für diese Wahl sind u.a. die zu erwartenden Reibungskräfte in den jeweiligen Bereichen der Schalungshaut und/oder die Reibungskräfte, die an Schalungssegmenten wirksam sind, wenn diese aus der Ruhestellung vorgeschoben werden sollen.In the embodiments shown in FIGS. 1 and 2, three formwork segment groups 12, 22, 32 and three support frames 40, 42, 44 are provided, with each formwork segment group forming approximately 1/3 of the formwork skin in the illustrated embodiment. Depending on the application, however, it is easily possible to provide more support frames and formwork segment groups and / or to select the individual formwork segment groups of different widths, e.g. by assigning adjacent formwork segments in adjacent formwork segment groups to one group in one application and to the other group in the other application and with that Support frame are firmly connected, which serves to move the group. The expected frictional forces in the respective areas of the formwork skin and / or the frictional forces which are effective on the formwork segments when these are to be advanced from the rest position are factors which influence this choice.

In Fig. 6 ist eine zweiteilige Ausbildung einer Gleitschalung in Form einer vorausschreitenden Ausbauschalung 2 und einer gleichartigen Stützschalung 4 dargestellt. Die Schalungssegmente 14 der beiden Schalungen 2 und 4 sind in Längsrichtung miteinander fluchtend angeordnet.6 shows a two-part design of a sliding formwork in the form of a progressive expansion formwork 2 and a similar supporting formwork 4. The formwork segments 14 of the two formworks 2 and 4 are arranged in alignment in the longitudinal direction.

Bei den in den Fig. 5 und 7 gezeigten Ausführungsformen von Schalungssegmenten sind jeweils fünf parallel zueinander angeordnete Gruppen von blähbaren Schläuchen 50 vorgesehen, die auf der Rückseite des zugeordneten Schalungsbleches 16 bzw. 16a in zugeordneten Kammern untergebracht sind, die von Trennstegen 20 bzw. 20a begrenzt sind. Die Trennstege 20 bzw. 20a greifen dabei zwischen und um die Schläuche 50. Die äußeren Trennstege 20a sind dabei verlängert ausgebildet und greifen als seitliche Halteelemente um den zugeordneten Längsträger 18, so daß sie eine Querverschiebung zwischen dem Schalungsblech 16 bzw. 16a und dem Längsträger 18 verhindern.In the embodiments of formwork segments shown in FIGS. 5 and 7, five groups of expandable hoses 50, each arranged parallel to one another, are provided, which are accommodated on the back of the associated formwork sheet 16 or 16a in associated chambers, which are separated by separating webs 20 and 20a are limited. The separating webs 20 and 20a engage between and around the hoses 50. The outer dividing webs 20a are designed to be elongated and engage as lateral holding elements around the associated longitudinal member 18, so that they cause a transverse displacement between the formwork sheet 16 or 16a and the longitudinal member 18 prevent.

Die Gruppen von blähbaren Schläuchen 50 können selber wiederum in einzelne Kammern unterteilt sein. Nach Fig. 5 ist eine Hydrauliksteueranordnung 60 vorgesehen, mit der in jedem der Schläuche 50 bzw. Schlauchkammern wahlweise ein voreingestellter Druckwert aufrechterhalten werden kann. Hierzu umfaßt die Hydraulikanordnung 60 eine Hydraulikpumpe und für jeden Schlauch 50 bzw. jede Kammer ein zugeordnetes Druckbegrenzungsventil, dessen Öffnungsdruck einstellbar ist.The groups of inflatable tubes 50 can themselves be subdivided into individual chambers. According to FIG. 5, a hydraulic control arrangement 60 is provided, with which a preset pressure value can optionally be maintained in each of the hoses 50 or hose chambers. For this purpose, the hydraulic arrangement 60 comprises a hydraulic pump and for each hose 50 or each chamber an associated pressure relief valve, the opening pressure of which is adjustable.

Bei der in Fig. 7 dargestellten Ausführungsform ist das Schalungsblech 16a durch Zugfedern in eine gegenüber der Schalungshaut radial zurückgezogene Stellung vorgespannt. Weiterhin weist das Schalungsblech 16a auf seiner der Schalungshaut zugewendeten Seite eine elastisch-nachgiebige Abdeckung 17 auf.In the embodiment shown in Fig. 7, the formwork sheet 16a is biased by tension springs in a position radially retracted relative to the formwork skin. Furthermore, the formwork sheet 16a has an elastically flexible cover 17 on its side facing the formwork skin.

Es wird nunmehr die Betriebsweise der selbstschreitenden Stütz- und Gleitschalung anhand der Fig. 4a, 4b, 4c und 6 näher erläutert.The mode of operation of the self-advancing supporting and sliding formwork will now be explained in more detail with reference to FIGS. 4a, 4b, 4c and 6.

Für ein Fortschreiten der Schalung wird ein beliebiger Stützrahmen, in Fig. 4a der mittlere Stützrahmen 42 mit Hilfe der zwischen den Stützrahmen 40, 42, 44 angeordneten Pressen 52 einschließlich der mit diesem Stützrahmen 42 fest verbundenen Schalungssegmentgruppe (die in der Zeichnung nicht im einzelnen dargestellt ist) um eine vorgewählte Schrittlänge x vorgeschoben. Vor Beginn des Vorschiebens werden die blähbaren Schläuche 50 der zugeordneten Schalungssegmentgruppe auf Transport geschaltet, d.h. der in den blähbaren Schläuchen herrschende Druck wird durch zugeordnete Druckbegrenzungsventile und die in der Hydraulikanordnung 60 vorgesehene Hydraulikpumpe auf einem vorgewählten Druckwert gehalten. Somit können die an der Betonwandung anliegenden Schalungsbleche 16 bzw. 16a auf Änderungen im Verlauf der Oberfläche der Betonwandung reagieren, d.h. bei einer Druckerhöhung entsprechend nachgeben bzw. bei einer Druckunterschreitung entsprechend ausgefahren werden. Wenn z.B. die Schalungsbleche 16 einer Schalungssegmentgruppe 12, 22 bzw. 32 beim Vorwandern eine engere Stelle im Beton passieren, dann wird ein Ansteigen des Druckes über die Überdruckventile abgebaut, so daß sich die betroffenen Schalungsbleche 16 bzw. 16a einwärts bewegen können. Droht dagegen der Druck in den blähbaren Schläuchen beim Passieren einer weiter werdenden Stelle abzufallen, so wird er von der Hydraulikpumpe aufrechterhalten und die betroffenen Schalungsbleche 16 bzw. 16a werden radial weiter nach außen geführt.To advance the formwork, an arbitrary support frame, in FIG. 4a the middle support frame 42 is used with the help of the presses 52 arranged between the support frames 40, 42, 44, including the formwork segment group firmly connected to this support frame 42 (which is not shown in detail in the drawing) is) advanced by a preselected step length x. Before the start of the advancement, the inflatable hoses 50 of the assigned formwork segment group are switched to transport, i.e. the pressure prevailing in the inflatable hoses is kept at a preselected pressure value by means of assigned pressure limiting valves and the hydraulic pump provided in the hydraulic arrangement 60. Thus, the formwork sheets 16 and 16a adjacent to the concrete wall can react to changes in the course of the surface of the concrete wall, i.e. yield accordingly if the pressure rises or extend accordingly if the pressure falls below the pressure. If e.g. If the formwork sheets 16 of a formwork segment group 12, 22 or 32 pass a narrower point in the concrete when they are moving, an increase in the pressure is reduced via the pressure relief valves, so that the affected formwork sheets 16 and 16a can move inwards. If, on the other hand, the pressure in the inflatable hoses threatens to drop as it passes a point that is becoming wider, it is maintained by the hydraulic pump and the formwork sheets 16 and 16a concerned are guided radially further outward.

Wie in den Fig. 4b und 4c gezeigt ist, werden nachfolgend der hintere Stützrahmen 44 mit seiner zugeordneten Schalungssegmentgruppe und dann der vordere Stützrahmen 40 mit seiner zugeordneten Schalungssegmentgruppe jeweils um die Schrittlänge x vorgeschoben.As shown in FIGS. 4b and 4c, the rear support frame 44 with its associated formwork segment group and then the front support frame 40 with its associated formwork segment group are each reduced by Stride length x advanced.

Wenn einer der Stützrahmen 40, 42, 44 mit seiner zugeordneten Schalungssegmentgruppe 12, 22, 32 vorgeschoben wird, stützt er sich über die an ihm angreifenden Pressen an wenigstens einem der anderen Stützrahmen ab, wobei die stationär gehaltenen Stützrahmen ihre Schalungssegmentgruppen gegen die Betonwandung gedrückt halten.When one of the support frames 40, 42, 44 with its associated formwork segment group 12, 22, 32 is pushed forward, it is supported on the presses which engage it on at least one of the other support frames, the stationary support frames holding their formwork segment groups pressed against the concrete wall .

Nach Fig. 2 wird die Schalung über nicht näher bezeichnete hydraulische Stützpressen auf einer nicht näher bezeichneten Fahrbahn abgestützt. Auch der Druck in diesen Stützpressen wird gesteuert, so daß Unebenheiten in der Fahrbahn, sowie Konvergenzen oder Divergenzen der Fahrbahn in Bezug auf die Längsachse der Schalung ausgeglichen werden, indem die betreffenden Stützzylinder entsprechend ein- oder ausgefahren werden.According to FIG. 2, the formwork is supported on an unspecified roadway by hydraulic support presses, which are not specified. The pressure in these support presses is also controlled so that unevenness in the road, as well as convergences or divergences of the road in relation to the longitudinal axis of the formwork, are compensated for by the corresponding support cylinders being moved in or out accordingly.

Nach Fig. 3 wird die Stirnschalung 34 durch nicht bezeichnete Dichtungen entlang dem Umfang des auszubetonierenden Ringraumes abgedichtet. Weiterhin wird die Stirnschalung 34 von einem in einem Druckzylinder längsverschieblichen Druckkolben der hydraulischen Abstützführung 70 geführt. Da die Abstützführung 70 an dem in Fortschreitrichtung vordersten Abstützrahmen 40 fest angebracht ist, kann die relative Lage der Stirnschalung 34 in Bezug auf den ringförmig geschlossenen vordersten Querschnitt der Schalungshaut geführt gehalten werden, unabhängig davon, ob gerade alle Schalungssegmentgruppen zusammen die vordere Ringfläche bilden oder eine oder mehrere der Schalungssegmentgruppen vorgeschoben worden sind. Außerdem ermöglicht es die hydraulische Führung der Stirnschalung 34, den Vorschub des Schalungskörpers 10 mit seiner Schalungshaut in gewissen Grenzen unabhängig von dem Einbringen des Betons in den Ringraum zu gestalten.According to FIG. 3, the front formwork 34 is sealed along the circumference of the annular space to be concreted by seals that are not shown. Furthermore, the front formwork 34 is guided by a pressure piston of the hydraulic support guide 70 which is longitudinally displaceable in a pressure cylinder. Since the support guide 70 is firmly attached to the foremost support frame 40 in the advancing direction, the relative position of the front formwork 34 can be kept guided in relation to the annular closed foremost cross section of the formwork skin, regardless of whether all formwork segment groups together form the front ring surface or one or more of the formwork segment groups have been advanced. In addition, the hydraulic guidance of the front formwork 34 enables the formwork body 10 with its formwork skin to be advanced within certain limits independently of the introduction of the concrete into the annular space.

Wenn die Druckkraft des vor der Stirnschalung eingepumpten Betons im Verhältnis zu den Reibungskräften ausreicht, kann auch die gesamte Schalung wie bei der bekannten gattungsgemäßen Stütz- und Gleitschalung auf einmal vorbewegt werden, ohne daß die zuvor erläuterte Auflösung der Schalungsbewegung in Teilschritte der Schalungssegmentgruppen erforderlich ist.If the compressive force of the concrete pumped in front of the face formwork is sufficient in relation to the frictional forces, the entire formwork can be moved forward at once, as in the known generic supporting and sliding formwork, without the previously described resolution of the formwork movement being necessary in partial steps of the formwork segment groups.

Bei einem absatzweisen Betonierbetrieb, d.h. bei einem Betrieb, bei dem das Schalen und Betonieren zeitlich nacheinander ausgeführt werden, können die Schalungsbleche 16 jeder Schalungssegmentgruppe 12, 22, 32 vor deren weiteren Vorschub von der Betonwandung abgezogen werden, um einen Reibungseingriff zu verhindern. Die Vorwärtsbewegung der gesamten Stütz- und Gleitschalung kann somit in Teilabschnitten erfolgen, wobei die einzelnen Schalungssegmente bzw. Schalungssegmentgruppen nach dem Vorwandern wieder an die Betonwandung angedrückt werden, um die Reaktionskräfte aufnehmen zu können, die bei dem Vorschub der folgenden Schalungssegmentgruppen auftreten.In a batch-wise concreting operation, i.e. in an operation in which the formwork and concreting are carried out in succession, the formwork sheets 16 of each formwork segment group 12, 22, 32 can be pulled off the concrete wall before their further advance in order to prevent frictional engagement. The forward movement of the entire support and sliding formwork can thus take place in partial sections, the individual formwork segments or formwork segment groups being pressed against the concrete wall again after advancing in order to be able to absorb the reaction forces which occur when the following formwork segment groups are advanced.

Die in Fig. 6 gezeigte zweiteilige Ausführung der Stütz- und Gleitschalung ist in solchen Fällen geeignet, wenn der auszuschalende Betonabschnitt insgesamt noch nicht die erforderliche Tragfähigkeit aufweist. In diesem Fall übernimmt die nachschreitende Stützschalung die Aufgabe der Abstützung, bis die erforderliche Tragfähigkeit in dem zugeordneten Betonabschnitt erreicht ist.The two-part design of the supporting and sliding formwork shown in FIG. 6 is suitable in such cases when the concrete section to be stripped does not yet have the required load-bearing capacity. In this case, the post-supporting formwork takes on the task of supporting until the required load-bearing capacity is reached in the assigned concrete section.

Wie bereits vorstehend erläutert worden ist, ist die nachschreitende Stützschalung 4 prinzipiell gleich aufgebaut wie die vorschreitende Ausbauschalung 2. Dabei sind natürlich die Schalungssegmentgruppen der Ausbauschalung 2 und der Stützschalung 4 so untereinander ausgewählt, daß sie in Längsrichtung fluchtend hintereinander liegen und miteinander vorschreiten können, so daß keine nachteilig großen Lücken zwischen den Schalungssegmentgruppen entstehen. Die Stützschalungssegmente werden vor dem Vorwandern vorteilhafterweise von der Betonwandung abgezogen. Hierzu sind sie bei der in Fig. 7 dargestellten Ausführungsform mit Zugfedern ausgestattet, die das Schalungsblech 16a auf den zugeordneten Längsträger 18 zu vorspannen. Wenn die blähbaren Schläuche 50 auf einen geringeren Druckwert oder drucklos geschaltet werden, werden die Schalungsbleche 16a durch die Zugfedern von der Betonwandung zurückgezogen.As has already been explained above, the post-supporting formwork 4 is basically constructed in the same way as the advancing expansion formwork 2. The formwork segment groups of the expansion formwork 2 and the support formwork 4 are of course selected from one another such that they are aligned one behind the other and can advance in the longitudinal direction, so that no disadvantage there are large gaps between the formwork segment groups. The support formwork segments are advantageously removed from the concrete wall before the forward movement. For this purpose, they are equipped with tension springs in the embodiment shown in FIG. 7, which prestress the formwork sheet 16a on the associated longitudinal beam 18. If the inflatable hoses 50 are switched to a lower pressure value or depressurized, the formwork sheets 16a are pulled back from the concrete wall by the tension springs.

Weiterhin weist bei der in Fig. 7 gezeigten Ausführungsform eines Stützschalungssegmentes das Schalungsblech 16a auf seiner zur Betonwandung hin gerichteten Oberfläche eine Abdeckung 17 aus elastisch-nachgiebigem Material auf, die dafür sorgt, daß das Stützschalungssegment auch in unebenen Bereichen des Betons diesen vollflächig stützt.Furthermore, in the embodiment of a supporting formwork segment shown in FIG. 7, the formwork sheet 16a has on its surface facing the concrete wall a cover 17 made of resilient material, which ensures that the supporting formwork segment supports the entire surface thereof even in uneven areas of the concrete.

Wie der Fachmann weiß, ist es je nach Erhärtungsfortschritt der zu stützenden Betonwandung möglich, die Stützschalungssegmente mit geringerer Breite als die eigentlichen Schalungssegmente auszubilden oder bei einer entsprechenden bereits vorhandenen Tragfähigkeit des Beton nur noch bestimmte Bereiche, wie z.B. die Firstbereiche zu stützen.As the person skilled in the art knows, depending on the progress of the hardening of the concrete wall to be supported, it is possible to design the supporting formwork segments with a smaller width than the actual formwork segments or, if the concrete already has a corresponding load-bearing capacity, only certain areas, e.g. to support the ridge areas.

Fig. 8 zeigt eine weitere Ausführungsform für eine hydraulische Abstützung der Schalungselement. Nach Fig. 8 ist ein flexibler Schlauch 55 zwischen den einander gegenüberliegenden Flächen des Längsträgers 18 und des Schalungsbleches 16 angeordnet. Die so begrenzte Kammer wird entlang den Längsseiten durch Längsseitenstege 20a abgeschlossen, die an dem Schalungsblech 16 angebracht sind.Fig. 8 shows a further embodiment for hydraulic support of the formwork element. According to FIG. 8, a flexible hose 55 is arranged between the opposite surfaces of the longitudinal beam 18 and the formwork sheet 16. The chamber defined in this way is closed off along the long sides by long side webs 20 a, which are attached to the formwork sheet 16.

Der flexible Schlauch 55 hat nur dichtende Funktion. Den Druck der Hydraulikflüssigkeit nehmen die die Kammer bzw. den Hohlraum umschließenden Wände 16, 18 und 20a auf.The flexible hose 55 has only a sealing function. The pressure of the hydraulic fluid is taken up by the walls 16, 18 and 20a enclosing the chamber or the cavity.

Claims (17)

  1. Self-advancing supporting and sliding shuttering for introducing an in-situ-concrete lining when lining a gallery or tunnel or similar elongate structure, having a shuttering body (10) which extends in the longitudinal direction of the structure and essentially parallel to the excavation wall thereof and is subdivided into a plurality of shuttering segments (14) which are located next to one another in the peripheral direction, each shuttering segment (14) comprising an outer shuttering element (16, 16a) supported on an associated substructure (18) and the shuttering elements (16, 16a) together forming an outer shuttering skin, having an end shuttering (34) which closes off the front side of the annular space between the excavation wall of the structure, or an outer shuttering fitted there, e.g. an outer concrete shell (2) around the shuttering body (10), and the shuttering body (10), and having a supporting structure which bears at least the substructures (18) of the shuttering elements (14) and comprises a plurality of supporting frames (40, 42, 44) arranged one behind the other, it being possible to transfer the supporting forces, to be exerted by the shuttering skin on the concrete which has been introduced, onto the effective shuttering outer surface by means of transfer members (50) which are hydraulically actuable, characterized in that the shuttering segments (14) form shuttering-segment groups, in that there are provided at least as many shuttering-segment groups (12, 22, 32) as supporting frames (40, 42, 44), in that each shuttering-segment group (12, 22, 32) is firmly connected to a different one of the supporting frames (40, 42, 44) and is mounted such that it can be displaced in a sliding manner on the remaining supporting frames (40, 42, 44), in that, in each shuttering segment (14), the transfer members (50) are arranged between the shuttering element (16, 16a) and the associated substructure (18) thereof, in that the shuttering elements (16, 16a) and the associated substructures (18) are coupled such that they cannot be displaced with respect to one another in the longitudinal direction in each case, and in that, between the individual supporting frames (40, 42, 44) there are arranged pressure/thrust members (52) which can be actuated independently of one another and by means of which each supporting frame (40, 42, 44) can be displaced individually with respect to the remaining supporting frames (40, 42, 44).
  2. Sliding shuttering according to Claim 1, characterized in that three shuttering-segment groups (12, 22, 32) and three supporting frames (40, 42, 44) are provided.
  3. Sliding shuttering according to Claim 1 or 2, characterized in that the substructure of each shuttering segment (14) is formed by a longitudinal load-bearing member (18) which is firmly connected to one of the supporting frames (40, 42, 44).
  4. Sliding shuttering according to Claim 1, characterized in that the shuttering elements are shuttering metal sheets (16, 16a) between which there are arranged seals closing the shuttering skin.
  5. Sliding shuttering according to Claim 1, characterized in that the transfer members which are hydraulically actuable comprise expandable hoses (50).
  6. Sliding shuttering according to Claim 5, characterized in that, in each shuttering segment (14) at least two groups, extending in the longitudinal direction of said segment, of expandable hoses (50) are arranged one beside the other.
  7. Sliding shuttering according to Claim 6, characterized in that separating webs (20, 20a) which engage between and around the hoses (50) are arranged on the rear side of each shuttering metal sheet (16, 16a).
  8. Sliding shuttering according to Claim 7, characterized in that the outer separating webs (20a), as lateral retaining elements, at the same time engage around the associated longitudinal load-bearing members (18) and prevent transverse displacement between shuttering metal sheet (16, 16a) and longitudinal load-bearing member (18).
  9. Sliding shuttering according to one of Claims 5 to 8, characterized in that each hose group is formed by a continuous hose (50).
  10. Sliding shuttering according to one of Claims 5 to 8, characterized in that each hose group comprises a plurality of hoses (50) or hose chambers which are arranged one behind the other and are actuable separately.
  11. Sliding shuttering according to one of Claims 5 to 8, characterized in that there is provided a hydraulic control arrangement (60) by means of which a preset pressure value may optionally be maintained in each of the hoses (50) or hose chambers.
  12. Sliding shuttering according to Claim 11, characterized in that the hydraulic arrangement (60) has a hydraulic pump and, for each hose (50) or each chamber, an associated pressure control valve, the opening pressure of which is adjustable.
  13. Sliding shuttering according to Claim 1, characterized by a two-part design in the form of a leading lining shuttering (2) and an identical following supporting shuttering (4), the shuttering segments (14) of which are arranged such that they are aligned with one another in the longitudinal direction.
  14. Sliding shuttering according to Claim 13, characterized in that the shuttering metal sheets (16a) of the supporting shuttering (4) are prestressed into a position which is radially pulled back with respect to the shuttering skin.
  15. Sliding shuttering according to Claim 13 or 14, characterized in that the shuttering metal sheets (16a) of the supporting shuttering (4) have, on the side of the shuttering skin, an elastically compliant covering (17).
  16. Sliding shuttering according to Claim 1 or 13, characterized in that the end shuttering (34) which engages tightly around the shuttering skin is supported on the front supporting frame (40) via a hydraulically actuable, longitudinally displaceable supporting guide (70).
  17. Sliding shuttering according to Claim 5, characterized in that the hydraulically actuable transfer members in a shuttering segment are formed by a flexible hose which fills a chamber which is formed between the shuttering element (16) and the associated substructure (18) and is delimited along the longitudinal sides by side webs (20a).
EP91903062A 1990-01-30 1991-01-30 Automatically advancing supporting and sliding form for introducing an in-situ concrete lining Expired - Lifetime EP0513083B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91903062T ATE99770T1 (en) 1990-01-30 1991-01-30 SELF-ADVANCED SUPPORTING AND SLIDEFORMWORK FOR PLACING AN IN-SITU CONCRETE LINING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4002669A DE4002669A1 (en) 1990-01-30 1990-01-30 SELF-PROCESSING SUPPORT AND SLIDING CIRCUIT FOR PUTTING A LOCAL CONCRETE LINING
DE4002669 1990-01-30

Publications (2)

Publication Number Publication Date
EP0513083A1 EP0513083A1 (en) 1992-11-19
EP0513083B1 true EP0513083B1 (en) 1994-01-05

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US (1) US5253955A (en)
EP (1) EP0513083B1 (en)
DE (2) DE4002669A1 (en)
ES (1) ES2048008T3 (en)
PT (1) PT96603B (en)
WO (1) WO1991011590A1 (en)

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JP6383611B2 (en) * 2014-09-03 2018-08-29 前田建設工業株式会社 Auxiliary formwork equipment at the top of tunnel lining concrete
CN109386297B (en) * 2018-10-15 2020-04-24 兰州理工大学 Hydraulic tunnel grading yielding support structure and construction method
CN109322679A (en) * 2018-11-02 2019-02-12 广州市高速公路有限公司 Subsidence-style tunnel side wall formwork jumbo device and its construction method
CN110344862A (en) * 2019-07-10 2019-10-18 河南城建学院 A kind of foundation pit support device for tunnel drainage engineering
JP7294995B2 (en) * 2019-11-25 2023-06-20 前田建設工業株式会社 Concrete pouring height indicator for tunnel lining
CN112228108B (en) * 2020-09-30 2023-05-23 湖南五新模板有限公司 Slidable inverted arch template and construction method thereof
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Publication number Publication date
DE59100817D1 (en) 1994-02-17
DE4002669A1 (en) 1991-08-01
ES2048008T3 (en) 1994-03-01
EP0513083A1 (en) 1992-11-19
WO1991011590A1 (en) 1991-08-08
US5253955A (en) 1993-10-19
PT96603A (en) 1992-09-30
PT96603B (en) 1998-08-31

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