EP0807204B1 - Seal arrangement for tubular tunnel segments - Google Patents

Seal arrangement for tubular tunnel segments Download PDF

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Publication number
EP0807204B1
EP0807204B1 EP96901220A EP96901220A EP0807204B1 EP 0807204 B1 EP0807204 B1 EP 0807204B1 EP 96901220 A EP96901220 A EP 96901220A EP 96901220 A EP96901220 A EP 96901220A EP 0807204 B1 EP0807204 B1 EP 0807204B1
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EP
European Patent Office
Prior art keywords
sealing
groove
profile
sealing profile
emergency seal
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EP96901220A
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German (de)
French (fr)
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EP0807204A1 (en
Inventor
Werner Grabe
Siegfried Glang
Holger Gutschmidt
Bruno Haye
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Phoenix AG
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Phoenix AG
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • E21D11/385—Sealing means positioned between adjacent lining members

Definitions

  • the invention relates to a sealing arrangement consisting of two abutting components made of concrete, steel, reinforced concrete, cast iron or other materials (e.g. synthetic resins) and a sealing profile made of elastomeric material (i.e. rubber or rubber-like material), that seals the gap between the two components; being the components in particular are segments which are assembled into a tubular tunnel, and to form transverse and longitudinal joints, with each segment preferably with at least one circumferential recess encompassing all segment butt sides is provided, wherein in turn there is a strand-shaped sealing profile in each recess, the especially with strand-shaped groove grooves on the base side of the sealing profile are arranged, and / or is also provided with channels running in the form of a strand, and while forming a sealing frame with frame corners. Since the segments are mostly four Have butt sides, the sealing frame consists of four composite sealing profiles, whereby the frame corners are preferably produced by the injection molding process.
  • a generic sealing arrangement is known for example from US-A-4 946 309.
  • Such compression seals have been found in numerous Proven tunnel projects.
  • EP-B-0 340 659 also presents a sealing arrangement in which the sealing profile is one Has cavity which is connected to an injection channel.
  • the sealing profile is activated. In this way, one high sealing effect achieved without pressing the sealing profiles together during assembly would be required.
  • the disadvantage here is the provision of an injection channel, which is frequent must also be guided through the segments, as well as additional device parts.
  • the corners of the frame of the sealing frame are also at least are equipped with a groove that merges into the groove of the sealing profile, with regard to the advantageous design variants of the groove and the emergency seal according to the designs the numbers 1 to 3 is referred.
  • FIG. 1 shows a tunnel 1 , consisting of segments 2 , namely with the formation of transverse and longitudinal joints 3 and 4 as well as a T-joint arrangement 5 .
  • sealing arrangement 6 consisting of two abutting segments 2 ' and 2 " , each of which is provided with a recess 7, in each of which a sealing profile 8 made of elastomeric material is seated.
  • the integrated emergency seal 9 comes in the optimal position ( compressed state of the two sealing profiles without misalignment) not to be carried in. The primary sealing effect is taken over by sealing profiles 8 (compression seals).
  • the emergency seal consists in particular of a sealing material that can be activated with water, If there is humidity or water penetration, the additional Sealing effect to develop, due to a swelling process Volume increase of the emergency seal (activated seal).
  • Fig. 5 shows a sealing profile 8 '
  • the back 10 is equipped with a single groove 11 which is located in the area of the profile center.
  • the flanks 12 of this groove run conically, with the groove width narrowing towards the groove bottom 13 .
  • the groove is provided with retaining lugs 14 which are arranged opposite one another within the flanks 12 , to be precise somewhat below the back 10 .
  • FIG. 6 now shows the same sealing profile 8 ′ according to FIG. 5, but here the emergency seal 19 is seated in a strip shape, which has a trapezoidal shape when viewed in cross section and does not fill the entire groove, with the formation of a free space 20 .
  • the retaining lugs 14 prevent the emergency seal 15 from falling out.
  • the back 10 of the sealing profile 21 has two grooves 22 and 23 , which are arranged mirror-symmetrically (with respect to the vertical profile center plane Y) to one another, a channel 24 being located between these two grooves, in a total of three rows overall of grooves and channels.
  • FIG. 8 shows a groove 25 , the flanks 26 of which extend in an arc shape, and these also merge into the groove base 27 in an arc shape, to be precise with the formation of a groove with an essentially circular cross-sectional shape.
  • the groove itself has an approximately funnel-shaped opening 28 .
  • the groove according to FIG. 8 is now completely filled with the emergency seal 29 , the sealing surface 30 also having a flange-like widening, namely by encompassing the back 10 of the sealing profile.
  • flank profile is shown, namely in the form of a concave flank 34 (dashed lines).
  • FIG. 11 now shows a groove according to FIG. 10 with a double-conical flank profile, the emergency seal 35 seated in the groove being in the form of a cord, with an essentially circular cross-sectional shape.
  • the sealing surface 36 of the emergency seal is located here to form a free space 37 somewhat below the back 10 of the sealing profile, and as a variant an aligned course of the sealing surface 36 ' with the back 10 is also possible (dashed lines).

Abstract

PCT No. PCT/DE96/00123 Sec. 371 Date Aug. 15, 1997 Sec. 102(e) Date Aug. 15, 1997 PCT Filed Jan. 30, 1996 PCT Pub. No. WO96/23958 PCT Pub. Date Aug. 8, 1996The invention relates to a seal arrangement consisting of two abutting structures of concrete, steel, reinforced concrete, cast iron or other materials and a sealing section of elastomeric material which bridges and seals the gap between the two structures, in which the structures are especially segments assembled to form a tubular tunnel with the formation of transverse and longitudinal seams, where each segment preferably has at least one peripheral recess covering all the mating sides of the segments and there is in each recess a stranded sealing section which especially has strand-shaped grooves on the base side of the sealing section and/or strand-shaped channels, forming a sealing frame with corners, and the back of the sealing section has at least one strand-shaped groove to accept an emergency seal. When the segments are moved in the direction of the arrow, giving rise to gaps, the emergency seal, consisting especially of a water-activatable sealing material, can expand as a result of a swelling process with an increase in volume.

Description

Die Erfindung betrifft eine Dichtanordnung, bestehend aus zwei aneinanderstoßenden Bauteilen aus Beton, Stahl, Stahlbeton, Gußeisen oder anderen Materialien (z.B. Kunstharze) sowie aus einem Dichtprofil aus elastomerem Werkstoff (d.h. aus Gummi oder gummiähnlichem Werkstoff), das den Spalt zwischen den beiden Bauteilen abdichtend überbrückt; wobei die Bauteile insbesondere Segmente sind, die zu einem rohrförmigen Tunnel zusammengesetzt sind, und zwar unter Bildung von Quer- und Längsfugen, wobei jedes Segment vorzugsweise mit wenigstens einer alle Segmentstoßseiten erfassenden umlaufenden Aussparung versehen ist, wobei sich wiederum in jeder Aussparung ein strangförmig verlaufendes Dichtprofil befindet, das insbesondere mit strangförmig verlaufenden Rillennuten, die an der Basisseite des Dichtprofiles angeordnet sind, und / oder mit ebenfalls strangförmig verlaufenden Kanälen versehen ist, und zwar unter Bildung eines Dichtrahmens mit Rahmenecken. Da die Segmente zumeist vier Stoßseiten besitzen, besteht der Dichtrahmen aus vier zusammengesetzten Dichtprofilen, wobei die Rahmenecken vorzugsweise nach dem Injection-Molding-Verfahren hergestellt werden.The invention relates to a sealing arrangement consisting of two abutting components made of concrete, steel, reinforced concrete, cast iron or other materials (e.g. synthetic resins) and a sealing profile made of elastomeric material (i.e. rubber or rubber-like material), that seals the gap between the two components; being the components in particular are segments which are assembled into a tubular tunnel, and to form transverse and longitudinal joints, with each segment preferably with at least one circumferential recess encompassing all segment butt sides is provided, wherein in turn there is a strand-shaped sealing profile in each recess, the especially with strand-shaped groove grooves on the base side of the sealing profile are arranged, and / or is also provided with channels running in the form of a strand, and while forming a sealing frame with frame corners. Since the segments are mostly four Have butt sides, the sealing frame consists of four composite sealing profiles, whereby the frame corners are preferably produced by the injection molding process.

Eine gattungsgemäße Dichtanordnung ist beispielsweise aus der US-A-4 946 309 bekannt. Infolge des Zusammenpressens der aneinanderstoßenden Bauteile bzw. Segmente unter Verringerung des Abstandes des Spaltes bzw. der Quer- und Längsfugen entfaltet dann das Dichtprofil aus elastomerem Werkstoff unter der Wechselwirkung von Kraft und Reaktionskraft seine Dichtleistung. Derartige Kompressionsdichtungen haben sich bei zahlreichen Tunnelprojekten bewährt.A generic sealing arrangement is known for example from US-A-4 946 309. As a result of the pressing together of the abutting components or segments Reducing the distance of the gap or the transverse and longitudinal joints then unfolds that Sealing profile made of elastomeric material under the interaction of force and reaction force its sealing performance. Such compression seals have been found in numerous Proven tunnel projects.

Zwecks zusätzlicher Druckaktivierung ist ferner vorgeschlagen worden, ein Dichtprofil zur Wasserseite hin mit einer seitlichen Bohrung zu versehen, die mit wenigstens einem der strangförmig verlaufenden Kanälen verbunden ist (US-A-5 044 823). Bei Eindringen von Wasser von der Segment-Außenseite herz wird der Kanal bzw. die Kanäle durch den Wasserdruck gestützt, was zu einer Erhöhung der Dichtleistung führt. Nachteilig ist jedoch, daß die Bohrung durch Verschmutzung geschlossen werden kann, was die Unwirksamkeit dieser druckaktivierenden Zusatzmaßnahme zur Folge hat.For the purpose of additional pressure activation, a sealing profile has also been proposed To provide water side with a side hole that with at least one of the strand-shaped channels is connected (US-A-5 044 823). When water penetrates from the outside of the segment, the canal (s) becomes water pressure supported, which leads to an increase in sealing performance. The disadvantage, however, is that the bore can be concluded by pollution, making the ineffectiveness of this pressure-activating additional measure.

In der EP-B-0 340 659 wird ferner eine Dichtanordnung vorgestellt, bei der das Dichtprofil einen Hohlraum aufweist, der mit einem Injektionskanal verbunden ist. Mittels eines injizierbaren, das Gesamtvolumen vergrößernden Mediums wird das Dichtprofil aktiviert. Auf diese Weise wird eine hohe Dichtwirkung erzielt, ohne daß ein Zusammenpressen der Dichtprofile bei der Montage erforderlich wäre. Nachteilig ist hier jedoch die Bereitstellung eines Injekfionskanales, der häufig zudem durch die Segmente geführt werden muß, sowie zusätzlicher Vorrichtungsteile.EP-B-0 340 659 also presents a sealing arrangement in which the sealing profile is one Has cavity which is connected to an injection channel. By means of an injectable, the Total volume increasing medium, the sealing profile is activated. In this way, one high sealing effect achieved without pressing the sealing profiles together during assembly would be required. However, the disadvantage here is the provision of an injection channel, which is frequent must also be guided through the segments, as well as additional device parts.

In den französischen Offenlegungsschriften 2 669 259, 2 678 680 und 2 712 655 werden Dichtanordnungen vorgestellt, bei denen der Rücken des Dichtprofiles wenigstens eine strangförmig verlaufende Nut aufweist, die für die Aufnahme einer Notdichtung, insbesondere eines aktivierbaren, insbesondere wiederum eines mit Wasser aktivierbaren Dichtmaterials, vorgesehen ist. Der Rücken des Dichtprofiles kann dabei eine einzige Nut aufweisen. Eine weitere Möglichkeit besteht darin, den Rücken des Dichtprofiles mit zwei Nuten auszustatten, die im wesentlichen spiegelssymmetrisch zueinander angeordnet sind, und zwar bezogen auf die senkrechte Profilmittelebene (EP-A-0 522 912).In French patent applications 2 669 259, 2 678 680 and 2 712 655 Sealing arrangements presented in which the back of the sealing profile at least one has a strand-shaped groove, which for receiving an emergency seal, in particular an activatable sealing material, in particular a sealing material that can be activated with water, is provided. The back of the sealing profile can have a single groove. A Another possibility is to equip the back of the sealing profile with two grooves, which are arranged essentially mirror-symmetrically to one another, with reference to the vertical profile center plane (EP-A-0 522 912).

Trotz zahlreicher Lösungsvorschläge beim Abdichten aneinanderstoßender Bauteile gibt es bislang ein unzureichend gelöstes Problem. Bauteile, insbesondere Tunnel-Segmente, können sich mit der Zeit (z.B. unter Einwirkung von geologischen Änderungsbedingungen) in ihrer Lage zueinander verändern, beispielsweise durch Ovalisierung, so daß sich Spalte auftun. Ferner können Bauteile bzw. Tunnel-Segmente bei Einbau unter Versatz verschoben sein. Derartige Konstellationen führen dann zwangsläufig zu einer negativen Beeinflussung der Dichtwirkung des Dichtprofiles.Despite numerous proposed solutions for sealing abutting components, there are an inadequately solved problem. Components, especially tunnel segments, can changes in position over time (e.g. under the influence of geological change conditions) change to each other, for example by ovalization, so that gaps open. Further components or tunnel segments can be displaced when installed under offset. Such Constellations then inevitably lead to a negative influence on the sealing effect of the sealing profile.

Aus diesem Grunde wird erfindungsgemäß eine Dichtanordnung vorgeschlagen, bei der der Rücken des Dichtprofiles wenigstens eine strangförmig verlaufende Nut mit den kennzeichnenden Merkmalen des Anspruches 1, 2 oder 3 aufweist.For this reason, a sealing arrangement is proposed according to the invention, in which the Back of the sealing profile at least one strand-shaped groove with the characterizing features of claim 1, 2 or 3 having.

Hinsichtlich der konstruktiven Gestaltung der Nut wie auch der in ihr einsitzenden Notdichtung kommen folgende Varianten zum Einsatz.

  • 1) Die Flanken der Nut verlaufen bogenförmig. wobei diese zudem bogenförmig in den Nutboden übergehen, und zwar unter Bildung einer Nut mit einer in wesentlichen kreisförmigen Querschnittsgestalt, insbesondere in Verbindung mit einer etwa trichterförmigen Öffnung. In diese Nut kann nun beispielsweise die Notdichtung in Schnurform bei einer im wesentlichen kreisförmigen Querschnittsgestalt eingebracht werden.Eine weitere zweckmäßige Gestaltungsvariante besteht in der Verwendung einer Notdichtung, die im wesentlichen vollständig die Nut ausfüllt. wobei die obere Dichtfläche der Notdichtung etwa fluchtend mit dem Rücken des Dichtprofiles verläuft oder eine flanschförmige Verbreiterung aufweist, und zwar unter Umgreifung des Profilrückens.
  • 2) Die Flanken der Nut verlaufen doppelkonisch oder konkav, wobei die Nutbreite im Bereich der halben Nuttiefe am größten ist, und zwar bei einem im wesentlichen ebenflächigen Nutboden. Hinsichtlich der einsitzenden Notdichtung wird auch hier auf die vorteilhaften Varianten gemäß Ziffer 1 verwiesen. Von besonderer Zweckmäßigkeit ist bei dieser Nutgestaltung die Verwendung einer Notdichtung in Schnurform.
  • 3) Die Flanken der Nut verlaufen konisch, und zwar unter Verkleinerung der Nutbreite zum Nutboden hin, und zwar bei einem im wesentlichen ebenflächigen Nutboden, wobei die Nut mit strangförmig verlaufenden Haltenasen ausgestattet ist, die das Herausfallen der Notdichtung verhindern. Dabei ist innerhalb jeder Flanke der Nut eine einzige Haltenase vorhanden, wobei die beiden gegenüberliegenden Haltenasen etwas unterhalb des Rückens des Dichtprofiles angeordnet sind. Die Notdichtung liegt hier zweckmäßigerweise in Streifenform vor, und zwar mit im wesentlichen rechteckiger oder trapezförmiger Querschnittsgestalt. In diesem Zusammenhang wird vorteilhafterweise nicht die gesamte Nut mit der Notdichtung ausgefüllt, und zwar unter Bildung eines Freiraumes zwischen dem Rücken des Dichtprofiles und der Notdichtung.
    • The following variants are used with regard to the structural design of the groove as well as the emergency seal located in it.
  • 1) The flanks of the groove are curved. these also pass into the groove bottom in an arc shape, specifically to form a groove with an essentially circular cross-sectional shape, in particular in connection with an approximately funnel-shaped opening. For example, the emergency seal in the form of a cord with an essentially circular cross-sectional shape can now be introduced into this groove. A further expedient design variant consists in the use of an emergency seal which essentially completely fills the groove. the upper sealing surface of the emergency seal runs approximately flush with the back of the sealing profile or has a flange-like widening, namely by encompassing the profile back.
  • 2) The flanks of the groove are double-conical or concave, the groove width being greatest in the region of half the groove depth, namely with an essentially flat groove bottom. With regard to the seated emergency seal, reference is also made here to the advantageous variants according to number 1. The use of an emergency seal in the form of a cord is particularly useful in this groove design.
  • 3) The flanks of the groove run conically, namely by reducing the width of the groove towards the bottom of the groove, namely with a substantially flat groove bottom, the groove being equipped with strand-like retaining lugs which prevent the emergency seal from falling out. There is a single retaining lug within each flank of the groove, the two opposite retaining lugs being arranged somewhat below the back of the sealing profile. The emergency seal is expediently in the form of a strip, with an essentially rectangular or trapezoidal cross-sectional shape. In this context, the entire groove is advantageously not filled with the emergency seal, with the formation of a free space between the back of the sealing profile and the emergency seal.

    • Es ist ferner zweckmäßig, wenn die Rahmenecken des Dichtrahmens ebenfalls mit wenigstens einer Nut ausgestattet sind, die fluchtend in die Nut des Dichtprofiles übergeht, wobei hinsichtlich der vorteilhaften Gestaltungsvarianten der Nut und der Notdichtung auf die Ausführungen gemäß der Ziffern 1 bis 3 verwiesen wird.It is also expedient if the corners of the frame of the sealing frame are also at least are equipped with a groove that merges into the groove of the sealing profile, with regard to the advantageous design variants of the groove and the emergency seal according to the designs the numbers 1 to 3 is referred.

    Es ist zudem zweckmäßig, wenn die Notdichtung erst unmittelbar vor dem Zusammenfügen der Bauteile bzw. der Segmente in die Nut eingesetzt wird. Dies ist insbesondere von Bedeutung bei einer Notdichtung, die aus mit Wasser aktivierbarem Dichtmaterial (z.B. Hydrotite®) besteht.It is also useful if the emergency seal only immediately before the assembly of the Components or the segments is inserted into the groove. This is particularly important for an emergency seal consisting of sealing material that can be activated with water (e.g. Hydrotite®).

    Weitere konstruktive Gestaltungsvarianten des Dichtprofiles werden im Rahmen der Figurenbeschreibung vorgestellt.Further constructive design variants of the sealing profile are part of the Figure description presented.

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

  • Fig. 1 ein Tunnel, bestehend aus Segmenten sowie Längs- und Querfugen;
  • Fig. 2 eine Dichtanordnung ohne Versatz;
  • Fig. 3 eine Dichtanordnung mit Versatz;
  • Fig. 4 eine Dichtanordnung mit sehr starkem Versatz;
  • Fig. 5 ein Dichtprofil mit einer einzigen Nut und Haltenasen;
  • Fig. 6 ein Dichtprofil gemäß Fig. 5 mit einsitzender Notdichtung;
  • Fig. 7 ein Dichtprofil mit zwei Nuten und Haltenasen;
  • Fig. 8 ein Dichtprofil mit einer Nut, die im wesentlichen von kreisförmiger Querschnttsgestalt ist;
  • Fig. 9 ein Dichtprofil gemäß Fig. 8 mit einsitzender Notdichtung mit flanschförmiger Verbreiterung der Dichtfläche;
  • Fig. 10 ein Dichtprofil mit einer Nut, dessen Flanken doppelkonisch bzw. konkav verlaufen;
  • Fig. 11 ein Dichtprofil gemäß Fig. 10 mit einer einsitzenden Notdichtung in Schnurform.
    • The invention will now be explained using exemplary embodiments with reference to schematic drawings. Show it:
  • Figure 1 is a tunnel consisting of segments and longitudinal and transverse joints.
  • 2 shows a sealing arrangement without offset;
  • 3 shows a sealing arrangement with offset;
  • 4 shows a sealing arrangement with a very large offset;
  • Figure 5 shows a sealing profile with a single groove and retaining lugs.
  • 6 shows a sealing profile according to FIG. 5 with an emergency seal in place;
  • 7 shows a sealing profile with two grooves and retaining lugs;
  • 8 shows a sealing profile with a groove which is essentially of circular cross-sectional shape;
  • 9 shows a sealing profile according to FIG. 8 with a seated emergency seal with a flange-shaped widening of the sealing surface;
  • 10 shows a sealing profile with a groove, the flanks of which are double-conical or concave;
  • 11 shows a sealing profile according to FIG. 10 with a seated emergency seal in the form of a cord.

    • Die Fig. 2 bis 4 beinhalten dabei eine Querschnittsdarstellung der Längsfuge gemäß der Schnittlinie A-A (Fig. 1). Obwohl die Rillennuten und Kanäle im belasteten Zustand (d.h. unter Druckwirkung) ihre Form ändern, sind diese Profilteile im Rahmen der schematischen Zeichnungen in ihrer ursprünglichen Form dargestellt.2 to 4 include a cross-sectional view of the longitudinal joint according to the Section line A-A (Fig. 1). Although the groove and channels are under load (i.e. under Pressure effect) change their shape, these profile parts are part of the schematic Drawings shown in their original form.

    Die Fig. 5 bis 11 stellen dagegen den unbelasteten Zustand dar. Das gleiche gilt auch für die in den Ansprüchen niedergelegten konstruktiven Beschreibungen des Dichtprofiles, der Nut und der Notdichtung.5 to 11, on the other hand, show the unloaded state. The same also applies to the in the claims laid down constructive descriptions of the sealing profile, the groove and the emergency seal.

    In Verbindung mit diesen Figuren gilt folgende Bezugsziffernliste.

    1
    Tunnel
    2
    Segment
    2'
    Segment
    2"
    Segment
    3
    Querfuge (Ringfuge)
    4
    Längsfuge
    5
    T-Stoßanordnung
    6
    Dichtanordnung
    7
    Aussparung
    8
    Dichtprofil
    8'
    Dichtprofil
    9
    Notdichtung
    10
    Rücken des Dichtprofiles
    11
    Nut
    12
    Flanke
    13
    Nutboden
    14
    Haltenase
    15
    Basisseite des Dichtprofiles
    16
    Kanal
    17
    Rillennut
    18
    Kanal
    19
    Notdichtung in Streifenform
    20
    Freiraum
    21
    Dichtprofil
    22
    Nut
    23
    Nut
    24
    Kanal
    25
    Nut
    26
    Flanke
    27
    Nutboden
    28
    trichterförmige Öffnung
    29
    Notdichtung
    30
    Dichtfläche mit flanschförmiger Verbreiterung
    31
    Nut
    32
    Flanke
    32'
    Flanke
    33
    Nutboden
    34
    Flanke
    35
    Notdichtung
    36
    Dichtfläche
    36'
    Dichtfläche
    37
    Freiraum
    In connection with these figures, the following list of reference numbers applies.
    1
    tunnel
    2nd
    segment
    2 '
    segment
    2 "
    segment
    3rd
    Transverse joint (ring joint)
    4th
    Longitudinal joint
    5
    T-joint arrangement
    6
    Sealing arrangement
    7
    Recess
    8th
    Sealing profile
    8th'
    Sealing profile
    9
    Emergency seal
    10th
    Back of the sealing profile
    11
    Groove
    12th
    Flank
    13
    Groove bottom
    14
    Holding nose
    15
    Base side of the sealing profile
    16
    channel
    17th
    Groove groove
    18th
    channel
    19th
    Emergency seal in strip form
    20th
    free space
    21
    Sealing profile
    22
    Groove
    23
    Groove
    24th
    channel
    25th
    Groove
    26
    Flank
    27
    Groove bottom
    28
    funnel-shaped opening
    29
    Emergency seal
    30th
    Sealing surface with flange-shaped widening
    31
    Groove
    32
    Flank
    32 '
    Flank
    33
    Groove bottom
    34
    Flank
    35
    Emergency seal
    36
    Sealing surface
    36 '
    Sealing surface
    37
    free space

    Fig. 1 zeigt einen Tunnel 1, bestehend aus Segmenten 2, und zwar unter Bildung von Quer- und Längsfugen 3 bzw. 4 sowie einer T-Stoßanordnung 5.1 shows a tunnel 1 , consisting of segments 2 , namely with the formation of transverse and longitudinal joints 3 and 4 as well as a T-joint arrangement 5 .

    Fig. 2 zeigt eine Dichtanordnung 6, bestehend aus zwei aneinanderstoßenden Segmenten 2' und 2", die jeweils mit einer Aussparung 7 versehen sind, in der wiederum jeweils ein Dichtprofil 8 aus elastomerem Werkstoff einsitzt. Die integrierte Notdichtung 9 kommt in der optimalen Position (zusammengepreßter Zustand der beiden Dichtprofile ohne Versatz) zunächst nicht zum Tragen. Die primäre Dichtwirkung übernehmen hier die Dichtprofile 8 (Kompressionsdichtungen).2 shows a sealing arrangement 6 , consisting of two abutting segments 2 ' and 2 " , each of which is provided with a recess 7, in each of which a sealing profile 8 made of elastomeric material is seated. The integrated emergency seal 9 comes in the optimal position ( compressed state of the two sealing profiles without misalignment) not to be carried in. The primary sealing effect is taken over by sealing profiles 8 (compression seals).

    Die Notdichtung 9 kommt erfindungsgemäß dann zum Einsatz, wenn sich folgende Konstellationen ergeben.

  • a) Die Segmente 2' und 2" verschieben sich in Pfeilrichtung gemäß Fig. 2, wodurch sich Spalte auftun.
  • b) Die Segmente 2' und 2" sind bei Einbau unter Versatz X in Pfeilrichtung gemäß Fig. 3 bzw. 4 verschoben.
    • The emergency seal 9 is used according to the invention when the following constellations arise.
  • a) The segments 2 ' and 2 " move in the direction of the arrow shown in FIG. 2, whereby gaps open.
  • b) The segments 2 ' and 2 " are displaced in the arrow direction according to FIGS. 3 and 4 when installed under offset X.

    • Da die Notdichtung insbesondere aus einem mit Wasser aktivierbaren Dichtmaterial besteht, kann bei vorhandener Luftfeuchtigkeit bzw. bei eindringendem Wasser die zusätzliche Dichtwirkung zur Enffaltung gelangen, und zwar infolge eines Quellvorganges unter Volumenvergrößerung der Notdichtung (aktivierte Dichtung).Since the emergency seal consists in particular of a sealing material that can be activated with water, If there is humidity or water penetration, the additional Sealing effect to develop, due to a swelling process Volume increase of the emergency seal (activated seal).

    Fig. 5 zeigt ein Dichtprofil 8', dessen Rücken 10 mit einer einzigen Nut 11 ausgestattet ist, die sich im Bereich der Profilmitte befindet. Die Flanken 12 dieser Nut verlaufen konisch, und zwar unter Verkleinerung der Nutbreite zum Nutboden 13 hin. Die Nut ist dabei mit Haltenasen 14 versehen, die innerhalb der Flanken 12, und zwar etwas unterhalb des Rückens 10, gegenüberliegend angeordnet sind. Fig. 5 shows a sealing profile 8 ' , the back 10 is equipped with a single groove 11 which is located in the area of the profile center. The flanks 12 of this groove run conically, with the groove width narrowing towards the groove bottom 13 . The groove is provided with retaining lugs 14 which are arranged opposite one another within the flanks 12 , to be precise somewhat below the back 10 .

    Zwischen dem im wesentlichen ebenflächigen Nutboden 13 und der Basisseite 15 des Dichtprofiles sind zwei Kanäle 16 vorhanden, die von zwei Rillennuten 17 eingerahmt sind. Außerdem sind beidseitig zur Nut 11 jeweils zwei weitere Kanäle 18 angeordnet.Between the essentially flat groove bottom 13 and the base side 15 of the sealing profile, there are two channels 16 , which are framed by two groove grooves 17 . In addition, two further channels 18 are arranged on both sides of the groove 11 .

    Fig. 6 zeigt nun das gleiche Dichtprofil 8' gemäß Fig. 5, wobei hier jedoch die Notdichtung 19 in Streifenform einsitzt, die im Querschnitt gesehen eine trapezförmige Gestalt aufweist und nicht die gesamte Nut ausfüllt, und zwar unter Bildung eines Freiraumes 20. Die Haltenasen 14 verhindern dabei das Herausfallen der Notdichtung 15.FIG. 6 now shows the same sealing profile 8 ′ according to FIG. 5, but here the emergency seal 19 is seated in a strip shape, which has a trapezoidal shape when viewed in cross section and does not fill the entire groove, with the formation of a free space 20 . The retaining lugs 14 prevent the emergency seal 15 from falling out.

    Nach Fig. 7 weist der Rücken 10 des Dichtprofiles 21 zwei Nuten 22 und 23 auf, die spiegelsymmetrisch (bezogen auf die senkrechte Profilmittelebene Y) zueinander angeordnet sind, wobei sich zwischen diesen beiden Nuten ein Kanal 24 befindet, und zwar bei einer insgesamt dreireihigen Gesamtanordnung von Rillen und Kanälen. Hinsichtlich des Zusammenwirkens von Haltenasen 14 und Notdichtung wird auf die Fig. 6 verwiesen.7, the back 10 of the sealing profile 21 has two grooves 22 and 23 , which are arranged mirror-symmetrically (with respect to the vertical profile center plane Y) to one another, a channel 24 being located between these two grooves, in a total of three rows overall of grooves and channels. With regard to the interaction of retaining lugs 14 and emergency seal, reference is made to FIG. 6.

    Fig. 8 zeigt eine Nut 25, deren Flanken 26 bogenförmig verlaufen, wobei diese zudem bogenförmig in den Nutboden 27 übergehen, und zwar unter Bildung einer Nut mit einer im wesentlichen kreisförmigen Querschnittsgestalt. Die Nut selbst besitzt eine etwa trichterförmige Öffnung 28.FIG. 8 shows a groove 25 , the flanks 26 of which extend in an arc shape, and these also merge into the groove base 27 in an arc shape, to be precise with the formation of a groove with an essentially circular cross-sectional shape. The groove itself has an approximately funnel-shaped opening 28 .

    Nach Fig. 9 ist nun die Nut gemäß Fig. 8 vollständig mit der Notdichtung 29 ausgefüllt, wobei die Dichtfläche 30 zudem eine flanschförmige Verbreiterung aufweist, und zwar unter Umgreifung des Rückens 10 des Dichtprofiles.According to FIG. 9, the groove according to FIG. 8 is now completely filled with the emergency seal 29 , the sealing surface 30 also having a flange-like widening, namely by encompassing the back 10 of the sealing profile.

    Fig. 10 zeigt nun eine Nut 31, deren Flanken 32 bzw. 32' doppelkonisch verlaufen, wobei die Nutbreite im Bereich der halben Nuttiefe am größten ist, und zwar bei einem im wesentlichen ebenflächigen Nutboden 33.10 now shows a groove 31 , the flanks 32 and 32 'of which are double-conical, the groove width being greatest in the region of half the groove depth, specifically with a substantially flat groove bottom 33 .

    Im Rahmen dieser Figuren ist eine weitere Alternative des Flankenverlaufes dargestellt, und zwar in Form einer konkav verlaufenden Flanke 34 (gestrichelte Linienführung).In the context of these figures, a further alternative of the flank profile is shown, namely in the form of a concave flank 34 (dashed lines).

    Fig. 11 zeigt nun eine Nut gemäß Fig. 10 mit doppelkonischem Flankenverlauf, wobei die in der Nut einsitzende Notdichtung 35 in Schnurform vorliegt, und zwar mit im wesentlichen kreisförmiger Querschnittsgestalt. Die Dichtfläche 36 der Notdichtung befindet sich hier unter Bildung eines Freiraumes 37 etwas unterhalb des Rückens 10 des Dichtprofiles, wobei als Variante auch ein fluchtender Verlauf der Dichtfläche 36' mit dem Rücken 10 möglich ist (gestrichelte Linienführung).11 now shows a groove according to FIG. 10 with a double-conical flank profile, the emergency seal 35 seated in the groove being in the form of a cord, with an essentially circular cross-sectional shape. The sealing surface 36 of the emergency seal is located here to form a free space 37 somewhat below the back 10 of the sealing profile, and as a variant an aligned course of the sealing surface 36 ' with the back 10 is also possible (dashed lines).

    Auch wenn der erfindungsgemäßen Dichtanordnung im Rahmen des Tunnelbaues eine herausragende Bedeutung zukommt, so läßt sich dieses Prinzip auch auf andere Baukonstruktionen anwenden, beispielsweise beim Abdichten von Muffenrohren beim Kanalbau (EP-B-0 449 082).Even if the sealing arrangement according to the invention in the context of tunnel construction this principle can also be applied to others Use building constructions, for example when sealing socket pipes in sewer construction (EP-B-0 449 082).

    Claims (12)

    1. A sealing arrangement (6) which consists of
      two abutting components of concrete, steel, reinforced concrete, cast iron or other materials as well as of a sealing profile of elastomeric material bridging over the gap between the two components;
      where the components are in particular segments (2,2',2") assembled into a tubular tunnel (1), that is, with the formation of transverse and longitudinal joints (3) resp. (4), each segment being preferably provided at its abutting edge with at least one recess (7) running round to take in all of the abutting edges of the segment, and where there is again in each recess a continuous sealing profile (8,8',21) provided in particular with continuous grooves arranged at the side of the sealing profile at the base and/or with likewise continuous channels, that is, to form a sealing frame with frame corners;
      where again the back (10) of the sealing profile (8,8',21) exhibits at least one continuous groove (11,22,23,25,31) which is designed to receive an emergency seal (9,19,29,35), especially one of sealing material which may be activated, again especially of sealing material which activates in water;
      characterized in that
      the flanks (26) of the groove (25) run in an arc and in addition continue into the bottom (27) of the groove in an arc, thus forming a groove with an essentially circular cross-sectional shape, the groove being provided in particular with a roughly funnel-shaped opening (28).
    2. A sealing arrangement (6) which consists of
      two abutting components of concrete, steel, reinforced concrete, cast iron or other materials as well as of a sealing profile of elastomeric material bridging over the gap between the two components;
      where the components are in particular segments (2,2',2") assembled into a tubular tunnel (1), that is, with the formation of transverse and longitudinal joints (3) resp. (4), each segment being preferably provided at its abutting edge with at least one recess (7) running round to take in all of the abutting edges of the segment, and where there is again in each recess a continuous sealing profile (8,8',21) provided in particular with continuous grooves arranged at the side of the sealing profile at the base and/or with likewise continuous channels, that is, to form a sealing frame with frame corners;
      where again the back (10) of the sealing profile (8,8',21) exhibits at least one continuous groove (11,22,23,25,31) which is designed to receive an emergency seal (9,19,29,35), especially one of sealing material which may be activated, again especially of sealing material which activates in water;
      characterized in that
      the flanks (32,32',34) of the groove (31) run in a double cone or are concave with the width of the groove greatest in the region of half the depth of the groove, and there is an essentially plane bottom (33) to the groove.
    3. A sealing arrangement (6) which consists of
      two abutting components of concrete, steel, reinforced concrete, cast iron or other materials as well as of a sealing profile of elastomeric material bridging over the gap between the two components;
      where the components are in particular segments (2,2',2") assembled into a tubular tunnel (1), that is, with the formation of transverse and longitudinal joints (3) resp. (4), each segment being preferably provided at its abutting edge with at least one recess (7) running round to take in all of the abutting edges of the segment, and where there is again in each recess a continuous sealing profile (8,8',21) provided in particular with continuous grooves arranged at the side of the sealing profile at the base and/or with likewise continuous channels, that is, to form a sealing frame with frame corners;
      where again the back (10) of the sealing profile (8,8',21) exhibits at least one continuous groove (11,22,23,25,31) which is designed to receive an emergency seal (9,19,29,35), especially one of sealing material which may be activated, again especially of sealing material which activates in water;
      characterized in that
      the flanks (12) of the groove (11,22,23) run in a cone, that is, with the width of the groove decreasing towards the bottom of the groove and there is an essentially plane bottom (13) to the groove, whilst the groove is equipped with continuous retainer noses (14) which prevent the emergency seal (19) from dropping out, that is, because there is one single retainer nose (14) inside each flank (12) of the groove (11,22,23) and the two opposing retainer noses are arranged a little below the back (10) of the sealing profile (8',21).
    4. A sealing arrangement as in Claim 1, 2 or 3, characterized in that the back (10) of the sealing profile (8,8') exhibits one single groove (11) which lies in the region of the centre of the profile.
    5. A sealing arrangement as in Claim 1, 2 or 3, characterized in that the back (10) of the sealing profile (21) exhibits two grooves (22, 23) arranged essentially with mirror symmetry with respect to one another about the vertical central plane Y of the profile, and at least one channel (24) is arranged between the pair of grooves (22,23).
    6. A sealing arrangement as in one of the Claims 1 to 5, especially in combination with Claim 3, characterized in that the emergency seal (19) is in the form of a strip, that is, with an essentially rectangular or trapezoidal cross-sectional shape.
    7. A sealing arrangement as in one of the Claims 1 to 5, especially in combination with Claims 1 or 2, characterized in that the emergency seal (35) is in the form of a cord, that is, with an essentially circular cross-sectional shape.
    8. A sealing arrangement as in one of the Claims 1 to 7, characterized in that the emergency seal (19,35) does not occupy the whole groove, so a free space (20,37) is formed between the back (10) of the sealing profile and the emergency seal.
    9. A sealing arrangement as in one of the Claims 1 to 7, characterized in that the emergency seal (35) essentially fills the groove fully, with the upper sealing face (36') of the emergency seal running about flush with the back (10) of the sealing profile.
    10. A sealing arrangement as in one of the Claims 1 to 7, characterized in that the emergency seal (29) essentially fills the groove fully, with the upper sealing face (30) exhibiting a widening in the form of a flange, that is, so as to embrace the the back (10) of the sealing profile.
    11. A sealing arrangement as in one of the Claims 1 to 10, characterized in that the frame corners of the sealing frame are likewise equipped with at least one groove which continues straight into the groove in the sealing profile.
    12. A sealing arrangement as in one of the Claims 1 to 11, characterized in that the emergency seal is inserted in the groove directly before the components or segments are joined together.
    EP96901220A 1995-02-01 1996-01-30 Seal arrangement for tubular tunnel segments Expired - Lifetime EP0807204B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE19502991 1995-02-01
    DE19502991 1995-02-01
    PCT/DE1996/000123 WO1996023958A1 (en) 1995-02-01 1996-01-30 Seal arrangement for tubular tunnel segments

    Publications (2)

    Publication Number Publication Date
    EP0807204A1 EP0807204A1 (en) 1997-11-19
    EP0807204B1 true EP0807204B1 (en) 1999-04-07

    Family

    ID=7752736

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96901220A Expired - Lifetime EP0807204B1 (en) 1995-02-01 1996-01-30 Seal arrangement for tubular tunnel segments

    Country Status (8)

    Country Link
    US (1) US5888023A (en)
    EP (1) EP0807204B1 (en)
    JP (1) JP2796437B2 (en)
    AT (1) ATE178691T1 (en)
    AU (1) AU734698B2 (en)
    DE (2) DE19603188A1 (en)
    ES (1) ES2132879T3 (en)
    WO (1) WO1996023958A1 (en)

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    Also Published As

    Publication number Publication date
    DE59601607D1 (en) 1999-05-12
    JP2796437B2 (en) 1998-09-10
    AU734698B2 (en) 2001-06-21
    AU4534096A (en) 1996-08-21
    ES2132879T3 (en) 1999-08-16
    JPH10502983A (en) 1998-03-17
    US5888023A (en) 1999-03-30
    ATE178691T1 (en) 1999-04-15
    EP0807204A1 (en) 1997-11-19
    DE19603188A1 (en) 1996-08-08
    WO1996023958A1 (en) 1996-08-08

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