EP1003955B1 - Device and method for fixing a sealing element on a casing in a stable position - Google Patents

Device and method for fixing a sealing element on a casing in a stable position Download PDF

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Publication number
EP1003955B1
EP1003955B1 EP99920660A EP99920660A EP1003955B1 EP 1003955 B1 EP1003955 B1 EP 1003955B1 EP 99920660 A EP99920660 A EP 99920660A EP 99920660 A EP99920660 A EP 99920660A EP 1003955 B1 EP1003955 B1 EP 1003955B1
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EP
European Patent Office
Prior art keywords
vacuum
sealing
frame
line
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP99920660A
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German (de)
French (fr)
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EP1003955A1 (en
Inventor
Christof Gipperich
Rolf Heerssen
Holger Gutschmidt
Werner Burger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phoenix AG
Herrenknecht GmbH
Hochtief AG
Original Assignee
Phoenix AG
Herrenknecht GmbH
Hochtief AG
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Publication of EP1003955A1 publication Critical patent/EP1003955A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0043Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with gaskets or sealing elements, e.g. for tunnelings or man holes
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/08Lining with building materials with preformed concrete slabs
    • E21D11/083Methods or devices for joining adjacent concrete segments
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • E21D11/385Sealing means positioned between adjacent lining members
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/40Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries

Definitions

  • the invention described below relates to a formwork for the production of Tubbing made of concrete or reinforced concrete, in particular a formwork on the at least an encircling sealing frame made of an elastomeric material is determinable.
  • the sealing frame becomes during the subsequent concreting process embedded in the concrete in a form-fitting manner.
  • tunnel tubes from Tübbingen has proven itself for a long time Construction, including the pressure-water-tight design of the longitudinal and Transverse joints by means of elastomeric compression sealing bands or frames. They are glued on the flanks of the segments before assembly or already embedded in concrete during concreting. A significant problem so far is the stable mounting of sealing strips or frames on the formwork.
  • the pointwise fixing is very costly and of unsatisfactory success Can be used to garland and to run behind the sealing tapes with concrete vat come. After stripping and SAubem is often deviations determined by the Sollage and in particular bumps. During installation can cause irregular and insufficient compression and as a result Leaks arise, especially if corresponding errors also in the adjoining tubbings or the sealing tapes or concretes embedded in them frame are present.
  • the sealing frames of a tubbings made of concrete often consist of four assembled, extruded sealing profiles, wherein the four crizded sealing profiles, wherein the four crizded sealing profiles (EP-B-0 578 797). Particularly effective in terms of their sealing function Sealing profiles which have longitudinally parallel channels (DE-C-35 02 620, EP-B-0 441 250).
  • Sealing profiles which have longitudinally parallel channels (DE-C-35 02 620, EP-B-0 441 250).
  • each tubbing has a single sealing frame.
  • a segment To provide double cable crimping especially in conjunction with a in a Transverse joint sewn sealing transverse profile, which is the outer contour of the two parallel extending sealing frame is adapted (EP-B-0 337 177).
  • the butt edges of Tübbingen are made of concrete or reinforced concrete formed predominantly with circumferential grooves, in which then the sealing frame is introduced, using attachment means, for. B. Thinner or glue.
  • the object of the invention is therefore to provide a vacuum device for producing a
  • the safe insertion of the Sealing profiles or of the sealing frame in the context of the design of the component or Tubbing ensures, combined with an effective anchoring in the concrete. It must also be ensured that in the shaping not the sealing performance the elastomer profile is impaired.
  • the mold I (formwork) with integrated vacuum device comprises a receiving groove 1 with two oblique edges 2.
  • the receiving groove is equipped with two vacuum grooves 3, 3 ' , which extend parallel to the receiving groove.
  • These two vacuum grooves are in communication a plurality of spaced vacuum holes 4, 4 ', 4 ".
  • the two vacuum grooves outside the region of the vacuum bore, ie between two vacuum holes, separated by a support 5 to which then the back of the sealing profile or . Can fit sealing frame.
  • the vacuum grooves 3, 3 ' are interrupted in the longitudinal direction, to form vacuum zones u, v, w, wherein here three vacuum holes 4, 4', 4 " are present within the vacuum zone v .
  • FIG. 2 again illustrates the interaction of receiving groove 1 , vacuum grooves 3, 3 ' and vacuum bore 4 , wherein the two vacuum grooves are arranged mirror-symmetrically to the median plane X of the vacuum bore.
  • the receiving groove is provided in the region of the flanks 2 on both sides in the longitudinal direction with a notch 7 , the meaning of which is explained in more detail in conjunction with FIG. 3b.
  • FIGS. 3a and 3b again show the mold I according to FIGS. 1 and 2.
  • the sealing profile 8 with the two anchoring feet 9 is inserted into the receiving groove 1 .
  • the final fixation is then made by vacuum.
  • the concreting process takes place, wherein the vacuum is switched off only after completion of the concreting and shaking process in order to avoid an undesired shift of the sealing profile in the formwork.
  • FIG. 3c now shows the sealing profile 8 anchored in the component 11 or tunnel segment (tubbing) .
  • FIG. 4 now illustrates a schematic representation of the tubbing formwork, comprising the encircling mold I , in which the sealing frame 8 'is seated, and the mold II , in which a reinforcing cage is inserted in the production of reinforced concrete tubbing.
  • the vacuum device as an integrated part of the molding tool I is provided with a ring line 12 , which is connected via a main line 13 to the vacuum unit 14, which is equipped to generate a 100% vacuum with a vacuum-stable tank (volume about 0.5 m 3 ) is.
  • the ring line 12 is provided with a T-shaped branch, wherein the flexible connection line 16 - formed here as a conduit system - is connected to four vacuum holes.
  • the two vacuum grooves are segmented according to FIG. 1, to form, for example, a total of fourteen vacuum zones u, v, w .
  • the conduit system 16 consists of a main connection line 16 ', in which the valve 17 is installed in the form of a ball valve, as well as four Mauanschluß effet 16 ", which are located between the valve and the vacuum bores, wherein each auxiliary line is in communication with a vacuum bore.
  • the vacuum zones u, v, w are separately switchable.
  • An advantageous series connection consists in initially applying vacuum to the vacuum zones w closest to the frame corner 8 "by opening the corresponding valves, thus giving the final fixation in the frame corner region, after which the central frame parts are opened by opening the corresponding valves with vacuum (Vacuum zones u, v ) applied until then the entire sealing frame 8 'is finally fixed.
  • the vacuum groove is further designed so that in the immediate area of the frame corner 8 ' no vacuum is present.
  • the reason for this measure is that the frame corner 8 " often does not lie precisely in the receiving groove due to its production, so that concrete sludge can penetrate under vacuum into the area of the groove flanks 2 (FIGS. 1, 2) Frame corner 8 " a modified solution has been found, which will now be presented below.
  • FIG. 5 shows the complete sealing frame 8 ' , which consists of four composite strand-shaped sealing profiles 8 and four frame corners 8 " .
  • the vacuum device according to the invention is not limited to the production of Limited sealing arrangements in which the component of concrete or reinforced concrete exists, but also for the production of plastic pipes, for example of GRP pipes, with anchored sealing ring suitable.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Gasket Seals (AREA)
  • Light Receiving Elements (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

A device for producing a sealing arrangement consists of two components (11) which meet and a sealing profile (8) which tightly bridges the gap between the two components. Said components (11) are especially segments which together form a tubular tunnel. The device is characterised in that a vacuum device comprises the following parts: a mounting groove (1) for the sealing profile or sealing frame, said mounting groove (1) being provided with at least one integrated parallel vacuum groove (3, 3'); at least one, usually several vacuum bores (4, 4', 4'') located at intervals and connected to the vacuum groove (3, 3'), a distributor line which is shaped especially as an annular line (12) when a sealing frame is fixed in place, a connecting line (16) which connects the distributor or annular line (12) to the vacuum bore and a main line (13) which is connected to the distributor or annular line (12) and which leads to the vacuum assembly (14).

Description

Die nachfolgend beschriebene Erfindung betrifft eine Schalung zur Herstellung von Tübbingen aus Beton oder Stahlbeton, insbesondere eine Schalung, an der zumindest ein umlaufender Dichtungsrahmen aus einem elastomeren Werkstoff lagegenau festlegbar ist. Der Dichtungsrahmen wird bei dem anschließenden Betoniervorgang formschlüssig in den Beton einbettet.The invention described below relates to a formwork for the production of Tubbing made of concrete or reinforced concrete, in particular a formwork on the at least an encircling sealing frame made of an elastomeric material is determinable. The sealing frame becomes during the subsequent concreting process embedded in the concrete in a form-fitting manner.

Die Herstellung von Tunnelröhren aus Tübbingen ist eine seit langer Zeit bewährte Bauweise, darin eingeschlossen die druckwasserdichte Ausbildung der Längs- und Querfugen mit Hilfe von elastomeren Kompressionsdichtungsbändem oder -rahmen. Sie werden vor der Montage auf die Flanken der Tübbinge aufgeklebt oder bereits beim Betonieren in den Beton eingebettet. Ein erhebliches Problem ist bisher die lagestabile Befestigung der Dichtungsbänder oder Rahmen an der Schalung. Die punktweise Festlegung ist sehr kostenintensiv und von unbefriedigendem Erfolg.Es kann zur Girlandenbildung und zum Hinterlaufen der Dichtungsbänder mit Betonschlempe kommen. Nach dem Ausschalen und Säubem stellt man häufig Abweichungen von der Sollage und insbesondere Unebenheiten fest. Bei der Montage können unregelmäßige und ungenügende Kompressionen und als deren Folge Undichtigkeiten entstehen, vor allem dann, wenn entsprechende Fehler auch an den angrenzenden Tübbingen bzw. den dort einbetonierten Dichtungsbändem bzw. - rahmen vorhanden sind.The production of tunnel tubes from Tübbingen has proven itself for a long time Construction, including the pressure-water-tight design of the longitudinal and Transverse joints by means of elastomeric compression sealing bands or frames. They are glued on the flanks of the segments before assembly or already embedded in concrete during concreting. A significant problem so far is the stable mounting of sealing strips or frames on the formwork. The pointwise fixing is very costly and of unsatisfactory success Can be used to garland and to run behind the sealing tapes with concrete vat come. After stripping and Säubem is often deviations determined by the Sollage and in particular bumps. During installation can cause irregular and insufficient compression and as a result Leaks arise, especially if corresponding errors also in the adjoining tubbings or the sealing tapes or concretes embedded in them frame are present.

Die Dichtrahmen eines Tübbings aus Beton bestehen vielfach aus vier zusammengesetzten, im Strangpreßverfahren hergestellten Dichtprofilen, wobei die vier Rahmenecken vorzugsweise nach dem Injection-Molding-Verfahren hergestellt werden (EP-B-0 578 797). Besonders wirksam hinsichtlich ihrer Dichtfunktion sind Dichtprofile, die in Längsrichtung parallel verlaufende Kanäle besitzen (DE-C-35 02 620, EP-B-0 441 250). Infolge des Zusammenpressens der aneinanderstoßenden Tunnel-Segmente unter Verringerung des Abstandes der Quer- und Längsfugen entfaltet dann der Dichtrahmen aus elastomerem Werkstoff unter der Wechselwirkung von Kraft und Reaktionskraft seine Dichtleistung. Derartige Kompressionsdichtungen haben sich bei zahlreichen Tunnelprojekten bewährt.The sealing frames of a tubbings made of concrete often consist of four assembled, extruded sealing profiles, wherein the four Rahmenecken preferably prepared by the injection molding process (EP-B-0 578 797). Particularly effective in terms of their sealing function Sealing profiles which have longitudinally parallel channels (DE-C-35 02 620, EP-B-0 441 250). As a result of compressing the abutting Tunnel segments reducing the distance between the transverse and longitudinal joints unfolds then the sealing frame of elastomeric material under the interaction of power and reaction force its sealing performance. Such compression seals have proven themselves in numerous tunnel projects.

Häufig genügt es, wenn jeder Tübbing einen einzigen Dichtrahmen aufweist. Unter besonderen Umständen kann es jedoch erforderlich werden, die Segmente mit einem Doppeldichträhmen zu versehen, insbesondere in Verbindung mit einem in einer Querfuge einsitzenden Dichtungsquerprofil, das der Außenkontur der beiden parallel verlaufenden Dichtrahmen angepaßt ist (EP-B-0 337 177).Often it is sufficient if each tubbing has a single sealing frame. Under However, in certain circumstances it may be necessary to use a segment To provide double cable crimping, especially in conjunction with a in a Transverse joint sewn sealing transverse profile, which is the outer contour of the two parallel extending sealing frame is adapted (EP-B-0 337 177).

Bislang werden die Stoßflanken von Tübbingen aus Beton bzw. Stahlbeton überwiegend mit umlaufenden Nuten ausgebildet, in die dann der Dichtrahmen eingebracht wird, und zwar unter Verwendung von Hilfsmitteln zur Befestigung, z. B. Verdünner oder Kleber.So far, the butt edges of Tübbingen are made of concrete or reinforced concrete formed predominantly with circumferential grooves, in which then the sealing frame is introduced, using attachment means, for. B. Thinner or glue.

In der DE-A-39 34 198 ist nun erstmalig vorgeschlagen worden, Dichtrahmen mit Verankerungsfüßen auszustatten, und zwar unter Verwendung einer Vakuumeinrichtung als Hilfswerkzeug bei der Verschalung unter gleichzeitiger Verankerung des Dichtrahmens im Tunnel-Segment aus Beton. Durch diese Verankerung entfällt

  • a) das Einstreichen mit einem Verdünner,
  • b) das beidseitige Einstreichen mit einem Kleber und
  • c) das Aufziehen eines Rahmens.
  • In DE-A-39 34 198 it has now been proposed for the first time to equip sealing frame with anchoring feet, using a vacuum device as an auxiliary tool in the casing with simultaneous anchoring of the sealing frame in the concrete tunnel segment. This anchorage is eliminated
  • a) painting with a thinner,
  • b) the two-sided application with an adhesive and
  • c) putting on a frame.
  • Erhebliche technische Schwierigkeiten bei der Befestigung von Dichtungsrahmen an der Tübbingschalung haben jedoch dazu geführt, daß bislang die oben beschriebene klassische Bauweise bevorzugt wird. Vor allem fehlt bisher eine ausführbare Anweisung für die Ausbildung der Vakuumeinrichtung.Substantial technical difficulties in the attachment of sealing frame However, the tubbing formwork have meant that so far the above-described classic construction is preferred. Above all, an executable is missing so far Instruction for the formation of the vacuum device.

    Aufgabe der Erfindung ist es daher, eine Vakuumeinrichtung zur Herstellung einer gattungsgemäßen Dichtanordnung bereitzustellen, die ein sicheres Einlegen des Dichtprofiles bzw. des Dichtrahmens im Rahmen der Formgebung des Bauteiles bzw. Tübbings gewährleistet, verbunden mit einer wirksamen Verankerung in dem Beton. Dabei muß ferner gewährleistet sein, daß bei der Formgebung nicht die Dichtleistung des Elastomerprofiles beeinträchtigt wird. The object of the invention is therefore to provide a vacuum device for producing a To provide generic sealing arrangement, the safe insertion of the Sealing profiles or of the sealing frame in the context of the design of the component or Tubbing ensures, combined with an effective anchoring in the concrete. It must also be ensured that in the shaping not the sealing performance the elastomer profile is impaired.

    Gelöst wird die Aufgabe gemäß Kennzeichen des Patentanspruches 1 durch eine Vakuumeinrichtung, die folgende Teile umfaßt, nämlich

    • eine Aufnahmenut für das Dichtprofil bzw, den Dichtrahmen, wobei die Aufnahmenut mit wenigstens einer integrierten Vakuumnut ausgestattet ist, die parallel zur Aufnahmenut verläuft;
    • wenigstens eine, zumeist jedoch mehrere im Abstand angeordnete Vakuumbohrung/en, die mit der Vakuumnut in Verbindung steht/stehen;
    • eine Verteilerleitung, die bei der Verankerung eines Dichtrahmens insbesondere als Ringleitung ausgebildet ist;
    • eine Anschlußleitung, die die Verteiler- bzw. Ringleitung mit der Vakuumbohrung verbindet; sowie
    • eine mit der Verteiler- bzw. Ringleitung verbundene Hauptleitung, die zum Vakuumaggregat führt.
    The object is achieved according to the characterizing part of claim 1 by a vacuum device comprising the following parts, namely
    • a receiving groove for the sealing profile or, the sealing frame, wherein the receiving groove is equipped with at least one integrated vacuum groove which is parallel to the receiving groove;
    • at least one, but generally a plurality of spaced vacuum bores communicating with the vacuum groove;
    • a distribution line, which is formed in particular during the anchoring of a sealing frame as a loop line;
    • a lead connecting the manifold to the vacuum bore; such as
    • a main line connected to the manifold or loop leading to the vacuum unit.

    Im folgenden werden die wesentlichen zweckmäßigen Konstruktionsmerkmale der erfindungsgemäßen Vakuumeinrichtung nach den Patentansprüchen 2 bis 13 genannt, wobei eine ausführliche Darlegung im Rahmen der Figurenbeschreibungen erfolgt.

    • Es sind zwei parallele Vakuumnuten vorhanden, die außerhalb des Bereiches der Vakuumbohrung durch eine Abstützung für den Rücken des Dichtprofiles bzw. des Dichtrahmens getrennt sind. Dabei sind die beiden Vakuumnuten spiegelsymmetrisch zur Mittelebene der Vakuumbohrung angeordnet.
    • Die Vakuumnut ist in Längsrichtung segmentiert, und zwar unter Bildung von Vakuumzonen. Innerhalb jedes Segmentes sind ferner wenigstens zwei, insbesondere wenigstens drei Vakuumbohrungen vorhanden.
    • Die Anschlußleitung ist flexibel, insbesondere unter Verwendung flexibler Schläuche aus Kunststoff, Gummi oder Metall.
    • Die Verteiler- bzw. Ringleitung ist mit einer T-förmigen Abzweigung versehen, wobei die Abschlußleitung das Abzweigstück mit der Vakuumbohrung verbindet.
    • Die Anschlußleitung ist mit einem Ventil zwecks Regulierung des Vakuumvorganges, beispielsweise in Form eines Kugelhahnes, ausgestattet. Diese konstruktive Variante wird dabei insbesondere in Verbindung mit der Segmentierung der Vakuumnut herangezogen, und zwar unter dem Gesichtspunkt separat schaltbarer Vakuumzonen.
    • Die Anschlußleitung ist ein Leitungssystem. Diese konstruktive Variante wird dabei ebenfalls insbesondere in Verbindung mit der Segmentierung der Vakuumnut angewandt. Hiernach besteht das Leitungssystem aus einer Hauptanschlußleitung, in die das oben beschriebene Ventil eingebaut ist, sowie aus mehreren Nebenanschlußleitungen, die sich zwischen dem Ventil und den Vakuumbohrungen befinden, wobei jeweils eine Nebenanschlußleitung mit einer Vakuumbohrung in Verbindung steht.
    • Die Aufnahmenut für das Dichtprofil bzw. den Dichtrahmen ist beidseitig in Längsrichtung mit einer Einkerbung ausgestattet, und zwar für die Aufnahme von Haltenasen als Teil des Dichtprofiles bzw. Dichtrahmens, wobei die Haltenasen insbesondere außerhalb des Bereiches der Rahmenecken vorhanden sind.
    • Die Vakuumnut ist so gestaltet, daß im Bereich der Rahmenecken kein Vakuum vorhanden ist. In Verbindung mit dieser konstruktiven Variante sollten dann jedoch die beiden zumeist schrägen Flanken der Aufnahmenut mit je einer Dichtlippe abgeschlossen sein, wobei die Dichtlippen ein Teil des Dichtprofiles bzw. Dichtrahmens sind und dabei vorzugsweise ausschließlich im Bereich der Rahmenecken vorhanden sind.
    In the following, the essential functional design features of the vacuum device according to the invention are given by the claims 2 to 13, wherein a detailed explanation within the description of the figures.
    • There are two parallel vacuum grooves, which are separated outside the region of the vacuum bore by a support for the back of the sealing profile or the sealing frame. The two vacuum grooves are arranged mirror-symmetrically to the median plane of the vacuum bore.
    • The vacuum groove is segmented longitudinally to form vacuum zones. Within each segment, there are at least two, in particular at least three, vacuum bores.
    • The connection line is flexible, in particular using flexible hoses made of plastic, rubber or metal.
    • The manifold is provided with a T-shaped branch, the termination line connecting the branch piece to the vacuum bore.
    • The connection line is equipped with a valve for the purpose of regulating the vacuum process, for example in the form of a ball valve. This structural variant is used in particular in connection with the segmentation of the vacuum groove, specifically from the point of view of separately switchable vacuum zones.
    • The connection line is a line system. This structural variant is also used in particular in connection with the segmentation of the vacuum groove. Thereafter, the conduit system consists of a main connection line, in which the valve described above is installed, as well as a plurality of auxiliary connection lines, which are located between the valve and the vacuum holes, wherein each auxiliary line is in communication with a vacuum bore.
    • The receiving groove for the sealing profile or the sealing frame is provided on both sides in the longitudinal direction with a notch, specifically for the reception of retaining lugs as part of the sealing profile or sealing frame, wherein the retaining lugs are present in particular outside the region of the frame corners.
    • The vacuum groove is designed so that there is no vacuum in the area of the frame corners. In conjunction with this constructive variant, however, then the two mostly oblique flanks of the receiving groove should be completed with a respective sealing lip, wherein the sealing lips are part of the sealing profile or sealing frame and are preferably present only in the frame corners.

    Die Erfindung wird nun anhand von Ausführungsbeispielen unter Bezugnahme auf schematische Zeichnungen erläutert. Es zeigen:

    Fig. 1
    eine Innenansicht des Formwerkzeuges mit integrierter Vakuumeinrichtung;
    Fig. 2
    eine Schnittdarstellung des Formwerkzeuges gemäß Fig. 1 (Schnitt A-A);
    Fig. 3a, b, c
    den Verfahrensablauf der Verankerung des Dichtprofiles bzw. Dichtrahmens im Bauteil bzw. Tübbing aus Beton;
    Fig. 4
    das Zusammenwirken verschiedener Teile der Vakuumeinrichtung unter dem Gesichtspunkt separat schaltbarer Vakuumzonen;
    Fig. 5
    einen Dichtrahmen;
    Fig. 6
    eine Schnittdarstellung des Dichtrahmens gemäß Fig. 5 (Schnitt A-A);
    Fig. 7
    eine Schnittdarstellung des Dichtrahmens gemäß Fig. 5 (Schnitt B-B).
    The invention will now be explained by means of exemplary embodiments with reference to schematic drawings. Show it:
    Fig. 1
    an interior view of the mold with integrated vacuum device;
    Fig. 2
    a sectional view of the mold of Figure 1 (section AA).
    Fig. 3a, b, c
    the procedure of anchoring the sealing profile or sealing frame in the component or tubbing made of concrete;
    Fig. 4
    the interaction of different parts of the vacuum device from the viewpoint of separately switchable vacuum zones;
    Fig. 5
    a sealing frame;
    Fig. 6
    a sectional view of the sealing frame of Figure 5 (section AA).
    Fig. 7
    a sectional view of the sealing frame according to FIG. 5 (section BB).

    In Verbindung mit diesen Figuren gilt folgende Bezugsziffernliste:

    1
    Aufnahmenut
    2
    Flanken der Aufnahmenut
    3
    Vakuumnut
    3'
    Vakuumnut
    4
    Vakuumbohrung
    4'
    Vakuumbohrung
    4"
    Vakuumbohrung
    5
    Abstützung
    6
    Bereich der Unterbrechung der Vakuumnut
    7
    Einkerbung
    8
    Dichtprofil
    8'
    Dichtrahmen
    8"
    Rahmenecke
    9
    Verankerungsfuß
    10
    Haltenase
    11
    Bauteil bzw. Tunnel-Segment
    12
    Verteiler- bzw. Ringleitung
    13
    Hauptleitung
    14
    Vakuumaggregat
    15
    T-förmige Abzweigung
    16
    Anschlußleitung bzw. Leitungssystem
    16'
    Hauptanschlußleitung
    16"
    Nebenanschlußleitung
    17
    Ventil (z.B. Kugelhahn)
    18
    Dichtlippe
    I
    Formwerkzeug
    II
    Formwerkzeug
    u
    Vakuumzone
    v
    Vakuumzone
    w
    Vakuumzone
    X
    Mittelebene der Vakuumbohrung
    In connection with these figures the following reference number list applies:
    1
    receiving groove
    2
    Flanks of the receiving groove
    3
    vacuum groove
    3 '
    vacuum groove
    4
    vacuum bore
    4 '
    vacuum bore
    4 '
    vacuum bore
    5
    support
    6
    Range of interruption of the vacuum groove
    7
    notch
    8th
    sealing profile
    8th'
    sealing frame
    8th"
    frame corner
    9
    anchoring
    10
    retaining nose
    11
    Component or tunnel segment
    12
    Distribution or ring line
    13
    main
    14
    vacuum unit
    15
    T-shaped branch
    16
    Connection cable or line system
    16 '
    Direct exchange line
    16 "
    Extension line
    17
    Valve (eg ball valve)
    18
    sealing lip
    I
    mold
    II
    mold
    u
    vacuum zone
    v
    vacuum zone
    w
    vacuum zone
    X
    Center plane of the vacuum hole

    Nach Fig. 1 umfaßt das Formwerkzeug I (Schalungsform) mit integrierter Vakuumeinrichtung eine Aufnahmenut 1 mit zwei schrägen Flanken 2. Die Aufnahmenut ist dabei mit zwei Vakuumnuten 3, 3' ausgestattet, die parallel zur Aufnahmenut verlaufen. Mit diesen beiden Vakuumnuten in Verbindung stehen mehrere in Abstand angeordnete Vakuumbohrungen 4, 4', 4". Außerdem sind die zwei Vakuumnuten außerhalb des Bereiches der Vakuumbohrung, d.h. zwischen zwei Vakuumbohrungen, durch eine Abstützung 5 getrennt, an der dann der Rücken des Dichtprofiles bzw. Dichtrahmens anliegen kann.According to Fig. 1, the mold I (formwork) with integrated vacuum device comprises a receiving groove 1 with two oblique edges 2. The receiving groove is equipped with two vacuum grooves 3, 3 ' , which extend parallel to the receiving groove. These two vacuum grooves are in communication a plurality of spaced vacuum holes 4, 4 ', 4 ". In addition, the two vacuum grooves outside the region of the vacuum bore, ie between two vacuum holes, separated by a support 5 to which then the back of the sealing profile or . Can fit sealing frame.

    Im Bereich 6 der Aufnahmenut 2 sind die Vakuumnuten 3, 3' in Längsrichtung unterbrochen, und zwar unter Bildung von Vakuumzonen u, v, w, wobei hier innerhalb der Vakuumzone v drei Vakuumbohrungen 4, 4', 4" vorhanden sind.In the region 6 of the receiving groove 2 , the vacuum grooves 3, 3 'are interrupted in the longitudinal direction, to form vacuum zones u, v, w, wherein here three vacuum holes 4, 4', 4 " are present within the vacuum zone v .

    Die Fig. 2 veranschaulicht nochmals das Zusammenwirken von Aufnahmenut 1, Vakuumnuten 3, 3' und Vakuumbohrung 4, wobei die beiden Vakuumnuten spiegelsymmetrisch zur Mittelebene X der Vakuumbohrung angeordnet sind. Die Aufnahmenut ist dabei im Bereich der Flanken 2 beidseitig in Längsrichtung mit einer Einkerbung 7 versehen, deren Bedeutung in Verbindung mit der Fig. 3b noch näher erläutert wird.2 again illustrates the interaction of receiving groove 1 , vacuum grooves 3, 3 ' and vacuum bore 4 , wherein the two vacuum grooves are arranged mirror-symmetrically to the median plane X of the vacuum bore. The receiving groove is provided in the region of the flanks 2 on both sides in the longitudinal direction with a notch 7 , the meaning of which is explained in more detail in conjunction with FIG. 3b.

    Die Fig. 3a und 3b zeigen nochmals das Formwerkzeug I gemäß Fig. 1 und 2. Zunächst wird das Dichtprofil 8 mit den beiden Verankerungsfüßen 9 in die Aufnahmenut 1 eingesetzt. Durch die Verankerung der beiden Haltenasen 10 in den Einkerbungen 7 erfolgt eine Vorfixierung des Dichtprofiles. Die endgültige Fixierung wird dann mittels Vakuum hergestellt.FIGS. 3a and 3b again show the mold I according to FIGS. 1 and 2. First, the sealing profile 8 with the two anchoring feet 9 is inserted into the receiving groove 1 . By anchoring the two retaining lugs 10 in the notches 7 there is a prefixing of the sealing profile. The final fixation is then made by vacuum.

    Nach der endgültigen Fixierung des Dichtprofiles 8 erfolgt der Vorgang des Betonierens, wobei das Vakuum erst nach Beendigung des Betonier- und Rüttelvorganges abgeschaltet wird, um eine unerwünschte Verlagerung des Dichtprofiles in der Schalung zu vermeiden.After the final fixation of the sealing profile 8 , the concreting process takes place, wherein the vacuum is switched off only after completion of the concreting and shaking process in order to avoid an undesired shift of the sealing profile in the formwork.

    Die Fig. 3c zeigt nun das im Bauteil 11 bzw. Tunnel-Segment (Tübbing) verankerte Dichtprofil 8. FIG. 3c now shows the sealing profile 8 anchored in the component 11 or tunnel segment (tubbing) .

    Die Fig. 4 veranschaulicht nun eine schematische Darstellung der Tübbingschalung, umfassend das umlaufende Formwerkzeug I, in der der Dichtrahmen 8' einsitzt, sowie das Formwerkzeug II, in das bei der Herstellung von Stahlbeton-Tübbingen ein Bewehrungkorb eingelegt ist.4 now illustrates a schematic representation of the tubbing formwork, comprising the encircling mold I , in which the sealing frame 8 'is seated, and the mold II , in which a reinforcing cage is inserted in the production of reinforced concrete tubbing.

    Die Vakuumeinrichtung als integriertes Teil des Formwerkzeuges I ist mit einer Ringleitung 12 versehen, die über eine Hauptleitung 13 mit dem Vakuumaggregat 14 verbunden ist, das zur Erzeugung eines 100 %-igen Vakuums mit einem unterdruckstabilen Tank (Volumen etwa 0,5 m3) ausgestattet ist.The vacuum device as an integrated part of the molding tool I is provided with a ring line 12 , which is connected via a main line 13 to the vacuum unit 14, which is equipped to generate a 100% vacuum with a vacuum-stable tank (volume about 0.5 m 3 ) is.

    Die Ringleitung 12 ist mit einer T-förmigen Abzweigung versehen, wobei die flexible Anschlußleitung 16 - hier als Leitungssystem ausgebildet - jeweils mit vier Vakuumbohrungen verbunden ist. Die beiden Vakuumnuten sind gemäß Fig. 1 segmentiert, und zwar unter Bildung von beispielsweise insgesamt vierzehn Vakuumzonen u, v, w. The ring line 12 is provided with a T-shaped branch, wherein the flexible connection line 16 - formed here as a conduit system - is connected to four vacuum holes. The two vacuum grooves are segmented according to FIG. 1, to form, for example, a total of fourteen vacuum zones u, v, w .

    Das Leitungssystem 16 besteht aus einer Hauptanschlußleitung 16', in die das Ventil 17 in Form eines Kugelhahnes eingebaut ist, sowie aus vier Nebenanschlußleitungen 16", die sich zwischen dem Ventil und den Vakuumbohrungen befinden, wobei jeweils eine Nebenanschlußleitung mit einer Vakuumbohrung in Verbindung steht.The conduit system 16 consists of a main connection line 16 ', in which the valve 17 is installed in the form of a ball valve, as well as four Nebenanschlußleitungen 16 ", which are located between the valve and the vacuum bores, wherein each auxiliary line is in communication with a vacuum bore.

    Im Hintergrund dieses Anordnungsprinzipes sind die Vakuumzonen u, v, w separat schaltbar. Eine vorteilhafte Reihenschaltung besteht darin, zunächst die Vakuumzonen w, die der Rahmenecke 8" am nächsten liegen, durch Öffnen der entsprechenden Ventile mit Vakuum zu beaufschlagen, womit die endgültige Fixierung im Rahmeneckenbereich gegeben ist. Danach werden die Rahmenmittelteile durch Öffnung der entsprechenden Ventile mit Vakuum (Vakuumzonen u, v) beaufschlagt, bis dann der gesamte Dichtrahmen 8' endgültig fixiert ist.In the background of this arrangement principle, the vacuum zones u, v, w are separately switchable. An advantageous series connection consists in initially applying vacuum to the vacuum zones w closest to the frame corner 8 "by opening the corresponding valves, thus giving the final fixation in the frame corner region, after which the central frame parts are opened by opening the corresponding valves with vacuum (Vacuum zones u, v ) applied until then the entire sealing frame 8 'is finally fixed.

    Die Vakuumnut ist ferner so gestaltet, daß im unmittelbaren Bereich der Rahmenecke 8' kein Vakuum vorhanden ist. Der Grund in dieser Maßnahme ist darin sehen, daß die Rahmenecke 8" herstellungsbedingt häufig nicht exakt in der Aufnahmenut einliegt, so daß unter Vakuum Betonschlämme in den Bereich der Nutflanken 2 (Fig. 1, 2) eindringen kann. Daher ist für den Bereich der Rahmenecke 8" eine modifizierte Lösung gefunden worden, die nun im folgenden vorgestellt wird.The vacuum groove is further designed so that in the immediate area of the frame corner 8 ' no vacuum is present. The reason for this measure is that the frame corner 8 " often does not lie precisely in the receiving groove due to its production, so that concrete sludge can penetrate under vacuum into the area of the groove flanks 2 (FIGS. 1, 2) Frame corner 8 " a modified solution has been found, which will now be presented below.

    Die Fig. 5 zeigt den kompletten Dichtrahmen 8', der aus vier zusammengesetzten strangförmigen Dichtprofilen 8 sowie aus vier Rahmenecken 8" besteht.5 shows the complete sealing frame 8 ' , which consists of four composite strand-shaped sealing profiles 8 and four frame corners 8 " .

    Während das Dichtprofil 8 gemäß Fig. 6, das bereits in Verbindung mit der Figurenbeschreibung 3a, 3b und 3c vorgestellt wurde, mit Haltenasen 10 versehen ist, weist die Rahmenecke 8" anstelle Haltenasen zwei Dichtlippen 18 auf. Auf diese Weise werden die Flanken 2 der Aufnahmenut 1 (Fig. 1, 2, 3a, 3b) abgeschlossen. Diese Dichtlippen reduzieren einerseits die Luftverluste und anderseits stellen sie eine wirksame Sperre gegen Eindringen von Betonschlämpe im Bereich der Rahmenecke dar.While the sealing profile 8 according to FIG. 6, which has already been presented in connection with the description of the figures 3a, 3b and 3c, is provided with retaining lugs 10 , the frame corner 8 " has two sealing lips 18 instead of retaining lugs 18. In this way the flanks 2 of FIGS completed receiving groove 1 (Fig. 1, 2, 3a, 3b). These sealing lips on the one hand reduce the loss of air and on the other hand, they constitute an effective barrier against penetration of Betonschlämpe in the region of the frame corner.

    Auch wenn der erfindungsgemäßen Vakuumeinrichtung im Rahmen des Tunnelbaues eine herausragende Bedeutung zukommt, so läßt sich dieses Prinzip auch bei der Herstellung anderer Dichtanordnungen verwirklichen, beispielsweise beim Abdichten von Muffenrohren beim Kanalbau (DE-C-35 07 909, EP-B-0 449 082). Dabei ist hier das Dichtprofil als ringförmiger Dichtrahmen (Dichtring) ausgebildet.Even if the vacuum device according to the invention in the context of tunneling plays a prominent role, so this principle can be in the Manufacture other sealing arrangements realize, for example, when sealing of socket pipes in sewer construction (DE-C-35 07 909, EP-B-0 449 082). It is here the sealing profile as an annular sealing frame (sealing ring) is formed.

    Ferner ist die erfindungsgemäße Vakuumeinrichtung nicht nur auf die Herstellung von Dichtanordnungen beschränkt, bei denen das Bauteil aus Beton oder Stahlbeton besteht, sondern auch zur Herstellung von Kunststoffrohren, beispielsweise von GFK-Rohren, mit verankertem Dichtring geeignet.Furthermore, the vacuum device according to the invention is not limited to the production of Limited sealing arrangements in which the component of concrete or reinforced concrete exists, but also for the production of plastic pipes, for example of GRP pipes, with anchored sealing ring suitable.

    Claims (13)

    1. A device for making a sealing assembly, comprising:
      two abutting components (11) made of concrete or another hardenable material as well as a sealing profile (8) made from elastomeric material, which sealingly bridges over the column between the two components, wherein the sealing profile has at least one anchoring foot (9), preferably two anchoring feet, on its base side;
      wherein the components (11) are segments, in particular, which are combined to form a tube-shaped tunnel, and forming transverse and longitudinal splices, whereby each segment is provided on its abutting side preferably with at least one circumferential recess covering all segment abutment sides, whereby in each recess, a sealing profile is located, forming a sealing frame (8') with frame corners (8'');
      using corresponding molding tools (I, II) with integrated vacuum device with anchoring of the sealing profile (8) or sealing frame (8') in the component (11) or segment, characterized in that the vacuum device includes the following parts, namely
      a receiving groove (1) for the sealing profile or the sealing frame, wherein the receiving groove includes at least one integrated vacuum groove (3, 3'), which runs parallel to the receiving groove;
      at least one, however, mostly multiple vacuum bores (4, 4', 4'') spaced apart, which are connected with the vacuum groove (3, 3');
      a distributor line, which is formed upon anchoring of a sealing frame, in particular, as a ring line (12);
      a connection line (16), which connects the distributor or ring line (12) with the vacuum bore; and
      a primary line (13) connected with the distributor or ring line (12), which leads to the vacuum apparatus (14).
    2. The device according to claim 1, characterized in that two vacuum grooves (3, 3'') are provided, which are separated outside of the region of the vacuum bore (4, 4', 4'') by a support (5) for the back of the sealing profile or the sealing frame.
    3. The device according to claim 2, characterized in that both vacuum grooves (3, 3") are arranged mirror-symmetrically to the center plane (X) of the vacuum bore (4, 4', 4").
    4. The device according to one of claims 1 through 3, characterized in that the vacuum groove (3, 3'') is segmented in the longitudinal direction, with vacuum zones (u, v, w).
    5. The device according to claim 4, characterized in that within each vacuum zone (u, v, w), at least two, in particular, at least three vacuum bores (4, 4', 4') are provided.
    6. The device according to one of claims 1 through 5, characterized in that the connection line (16) is flexible, in particular, with use of flexible tubes made of plastic, rubber, or metal.
    7. The device according to one of claims 1 through 6, characterized in that the distributor or ring line (12) is provided with a T-shaped branching (15), whereby the connection line connects the branching piece with the vacuum bore (4, 4', 4'').
    8. The device according to one of claims 1 through 7, characterized in that the connection line (16) is equipped with a valve (17) for purposes of regulating the vacuum process, in particular, in connection with claim 4 or 5 in consideration of separately switchable vacuum zones (u, v, w).
    9. The device according to one of claims 1 through 8, characterized in that the connection line (16) is a control system.
    10. The device according to claim 9 in connection with claim 5 and 8, characterized in that the control system (16) comprises a main connection line (16'), in which the valve (17) is integrated, as well as multiple auxiliary connection lines (16''), which are located between the valve and the vacuum bores (4, 4', 4''), whereby a respective auxiliary connection line is connected with a vacuum bore.
    11. The device according to one of claims 1 through 10, characterized in that the receiving groove (1) is equipped with a notch (7) for the sealing profile or sealing frame on both sides in the longitudinal direction, and for receiving the retaining noses (10) as part of the sealing profile or sealing frame, whereby the retaining noses are provided, in particular, outside of the region of the frame corners (8'').
    12. The device according to one of claims 1 through 11, characterized in that the vacuum groove (3, 3'') is equipped, such that in the region of the frame corners (8''), no vacuum is provided.
    13. The device according to one of claims 1 through 12, in particular, in connection with claim 12, characterized in that both generally inclined flanks (2) of the receiving groove (1) are sealed off with a sealing lip (18), whereby the sealing lips are a part of the sealing profile or sealing frame and therefore are provided preferably exclusively in the area of the frame corners (8'').
    EP99920660A 1998-04-20 1999-04-14 Device and method for fixing a sealing element on a casing in a stable position Expired - Lifetime EP1003955B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE19817429 1998-04-20
    DE19817429A DE19817429A1 (en) 1998-04-20 1998-04-20 Preparation of cast concrete sections with integral seals
    PCT/EP1999/002493 WO1999054593A1 (en) 1998-04-20 1999-04-14 Device and method for fixing a sealing element on a casing in a stable position

    Publications (2)

    Publication Number Publication Date
    EP1003955A1 EP1003955A1 (en) 2000-05-31
    EP1003955B1 true EP1003955B1 (en) 2005-08-24

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    ID=7865089

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99920660A Expired - Lifetime EP1003955B1 (en) 1998-04-20 1999-04-14 Device and method for fixing a sealing element on a casing in a stable position

    Country Status (7)

    Country Link
    EP (1) EP1003955B1 (en)
    JP (1) JP2002505629A (en)
    AT (1) ATE302894T1 (en)
    AU (1) AU3816099A (en)
    DE (2) DE19817429A1 (en)
    ES (1) ES2249001T3 (en)
    WO (1) WO1999054593A1 (en)

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    Also Published As

    Publication number Publication date
    WO1999054593A1 (en) 1999-10-28
    AU3816099A (en) 1999-11-08
    DE59912460D1 (en) 2005-09-29
    DE19817429A1 (en) 1999-10-21
    JP2002505629A (en) 2002-02-19
    EP1003955A1 (en) 2000-05-31
    ATE302894T1 (en) 2005-09-15
    ES2249001T3 (en) 2006-03-16

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