EP0807204A1 - Seal arrangement for tubular tunnel segments - Google Patents

Seal arrangement for tubular tunnel segments

Info

Publication number
EP0807204A1
EP0807204A1 EP96901220A EP96901220A EP0807204A1 EP 0807204 A1 EP0807204 A1 EP 0807204A1 EP 96901220 A EP96901220 A EP 96901220A EP 96901220 A EP96901220 A EP 96901220A EP 0807204 A1 EP0807204 A1 EP 0807204A1
Authority
EP
European Patent Office
Prior art keywords
groove
sealing
arrangement according
sealing arrangement
profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96901220A
Other languages
German (de)
French (fr)
Other versions
EP0807204B1 (en
Inventor
Werner Grabe
Siegfried Glang
Holger Gutschmidt
Bruno Haye
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
Original Assignee
Phoenix AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Phoenix AG filed Critical Phoenix AG
Publication of EP0807204A1 publication Critical patent/EP0807204A1/en
Application granted granted Critical
Publication of EP0807204B1 publication Critical patent/EP0807204B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E21D11/38—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 (ie rubber or rubber-like material), which seals the gap between the two components bridged; wherein the components are in particular segments which are assembled to form a tubular tunnel, to be precise with the formation of transverse and longitudinal joints, each segment preferably being provided with at least one circumferential recess which encompasses all segment abutment sides, again in each recess a strand-shaped sealing profile is located, which is provided in particular with strand-shaped groove grooves, which are arranged on the base side of the sealing profile, and / or with likewise strand-shaped channels, with the formation of a sealing frame with frame corners. Since the segments mostly have four butt sides, the sealing frame consists of four composite sealing profiles, the frame corners preferably being produced by the injection molding process.
  • a generic sealing arrangement is known for example from US-A-4 946 309.
  • the sealing profile made of elastomeric material unfolds its sealing performance under the interaction of force and reaction force. Compression seals of this type have proven themselves in numerous tunnel projects.
  • EP-B-0 340 659 also presents a sealing arrangement in which the sealing profile has a cavity which is connected to an injection channel.
  • the sealing profile is activated by means of an injectable medium that increases the total volume. In this way, a high sealing effect is achieved without the sealing profiles having to be pressed together during assembly.
  • the disadvantage here is the provision of an injection channel, which often also has to be guided through the segments, and additional device parts.
  • a sealing arrangement is proposed according to the invention in which the back of the sealing profile has at least one strand-shaped groove which is provided for receiving an emergency seal, in particular an activatable, in particular a sealing material which can be activated with water.
  • the back of the sealing profile can have a single groove, which is located in the area of the profile center.
  • Another expedient variant consists in equipping the back of the sealing profile with two grooves which are arranged essentially mirror-symmetrically to one another, specifically with respect to the vertical profile center plane.
  • flanks of the groove run in an arc shape, and these also merge into the groove base 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.
  • the emergency seal in the form of a cord with an essentially circular cross-sectional shape can now be introduced into this groove.
  • Another 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 being approximately flush with the back of the sealing profile or having a wedge-shaped widening, namely by encompassing the profile back.
  • flanks of the groove are concave, namely with a substantially flat groove bottom, reference being made to the advantageous variants according to number 1 with regard to the seated emergency seal.
  • flanks of the groove run conically, namely by reducing the width of the groove towards the groove bottom, and that with an essentially flat groove bottom, it being advantageous in this design variant if the groove is equipped with strand-like retaining lugs that prevent it from falling out prevent the emergency seal.
  • the groove is equipped with strand-like retaining lugs that prevent it from falling out prevent the emergency seal.
  • the emergency seal is expediently in the form of a strip, specifically with essentially rectangular or trapezoidal cross-sectional shape
  • 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.
  • the corners of the frame of the sealing frame are also equipped with at least one groove which merges into the groove of the sealing profile, reference being made to the explanations according to numbers 1 to 4 with regard to the advantageous design variants of the groove and the emergency seal.
  • the emergency seal is inserted into the groove just before the components or segments are joined together. This is particularly important in the case of an emergency seal that consists of sealing material that can be activated with water (e.g. Hydrotite®).
  • Figure 1 is a tunnel consisting of segments and longitudinal and transverse joints.
  • Figure 5 shows a sealing profile with a single groove and retaining lugs.
  • FIG. 6 shows a sealing profile according to FIG. 5 with an emergency seal in place
  • Fig. 8 is a sealing profile with a groove which is essentially circular cross-section
  • FIG. 9 shows a sealing profile according to FIG. 8 with a seated emergency seal with a flange-shaped widening of the sealing surface
  • FIG. 11 shows a sealing profile according to FIG. 10 with a seated emergency seal in the form of a cord.
  • FIG. 2 to 4 include a cross-sectional view of the longitudinal joint along the section line A-A (Fig. 1). Although the groove grooves and channels change their shape when loaded (i.e. under pressure), these profile parts are shown in their original form in the schematic drawings
  • 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 in turn has a sealing profile 8 made of elastomeric material.
  • 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 9 is used according to the invention when the following constellations arise.
  • the emergency seal consists in particular of a sealing material that can be activated with water, the additional sealing effect can develop in the presence of air humidity or in the event of water penetration, namely as a result of a swelling process with an increase in volume 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.
  • two channels 16 are present, which are framed by two groove grooves 17.
  • two further channels 18 are arranged on both sides of the groove 11.
  • 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, seen in cross section, has a trapezoidal shape and does not fill the entire groove, with the formation of a free space 20 the emergency seal 15 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 run in an arc shape, and these also merge into the groove base 27 in an arc shape, with the formation of a groove having 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 present in the form of a cord, essentially with it circular cross-sectional shape.
  • the sealing surface 36 of the emergency seal is located here to form a free space 37 somewhat below the spine 10 of the sealing profile, a variant of which is also possible for the sealing surface 36 'to be flush with the spine 10 (dashed lines).

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Bridges Or Land Bridges (AREA)
  • Pipe Accessories (AREA)
  • Road Paving Structures (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

The invention relates to a seal arrangement (6) 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 (2', 2'') assembled to form a tubular tunnel with the formation of transverse and longitudinal seams, where each segment preferably has at least one peripheral recess (7) covering all the mating sides of the segments and there is in each recess a stranded sealing section (8) 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 (8) has at least one strand-shaped groove to accept an emergency seal (9). When the segments (2', 2'') 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

DICHTANORDNUNG FÜR INSBESONDERE TUNNELROHRSEGMENTE SEALING ARRANGEMENT FOR PARTICULAR TUNNEL TUBE SEGMENTS
Beschreibungdescription
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 (ie rubber or rubber-like material), which seals the gap between the two components bridged; wherein the components are in particular segments which are assembled to form a tubular tunnel, to be precise with the formation of transverse and longitudinal joints, each segment preferably being provided with at least one circumferential recess which encompasses all segment abutment sides, again in each recess a strand-shaped sealing profile is located, which is provided in particular with strand-shaped groove grooves, which are arranged on the base side of the sealing profile, and / or with likewise strand-shaped channels, with the formation of a sealing frame with frame corners. Since the segments mostly have four butt sides, the sealing frame consists of four composite sealing profiles, the frame corners preferably being 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 compression of the abutting components or segments while reducing the spacing of the gap or the transverse and longitudinal joints, the sealing profile made of elastomeric material unfolds its sealing performance under the interaction of force and reaction force. Compression seals of this type have proven themselves in numerous 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 her, 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, it has also been proposed to provide a sealing profile on the water side with a lateral bore which is connected to at least one of the channel-shaped channels (US Pat. No. 5,044,823). When water penetrates from the outside of the segment, the channel or channels are supported by the water pressure, which leads to an increase in sealing performance. However, it is disadvantageous that the bore can be closed due to contamination, which results in the ineffectiveness of this additional pressure-activating 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 Injektionskanales, 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 has a cavity which is connected to an injection channel. The sealing profile is activated by means of an injectable medium that increases the total volume. In this way, a high sealing effect is achieved without the sealing profiles having to be pressed together during assembly. The disadvantage here, however, is the provision of an injection channel, which often also has to be guided through the segments, and additional device parts.
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 has been an insufficiently solved problem to date. Components, in particular tunnel segments, can change their position over time (e.g. under the influence of geological change conditions), for example due to ovalization, so that gaps open up. Furthermore, components or tunnel segments can be displaced when installed with an 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 aufweist, die für die Aufnahme einer Notdichtung, insbesondere eines aktivierbaren, insbesondere wiederum eines mit Wasser aktivierbaren Dichtmaterials, vorgesehen ist.For this reason, a sealing arrangement is proposed according to the invention in which the back of the sealing profile has at least one strand-shaped groove which is provided for receiving an emergency seal, in particular an activatable, in particular a sealing material which can be activated with water.
Der Rücken des Dichtprofiles kann eine einzige Nut aufweisen, die sich im Bereich der Profilmitte befindet. Eine weitere zweckmäßige Variante besteht darin, den Rücken des Dichtprofiles mit zwei Nuten auszustatten, die im wesentlichen spiegelsymmetrisch zueinander angeordnet sind, und zwar bezogen auf die senkrechte Profilmittelebene.The back of the sealing profile can have a single groove, which is located in the area of the profile center. Another expedient variant consists in equipping the back of the sealing profile with two grooves which are arranged essentially mirror-symmetrically to one another, specifically with respect to the vertical profile center plane.
Hinsichtlich der konstruktiven Gestaltung der Nut wie auch der in ihr einsitzenden Notdichtung kommen vorteilhafterweise 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 im wesentlichen kreisförmigen Querschnittsgestalt insbesondere in Verbindung mit einer etwa trichterförmigen Öffnung.With regard to the structural design of the groove as well as the emergency seal seated in it, the following variants are advantageously used. 1) The flanks of the groove run in an arc shape, and these also merge into the groove base 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.
In diese Nut kann nun beispielsweise die Notdichtung in Schnurform bei einer im wesentlichen kreisförmigen Querschnittsgestalt eingebracht werden.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.
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 fianschförmige Verbreiterung aufweist, und zwar unter Umgreifung des Profilrückens.Another 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 being approximately flush with the back of the sealing profile or having a wedge-shaped widening, namely by encompassing the profile back.
2) Die Flanken der Nut verlaufen konkav, und zwar bei einem im wesentlichen ebenflächigen Nutboden, wobei hinsichtlich der einsitzenden Notdichtung auf die vorteilhaften Varianten gemäß Ziffer 1 verwiesen wird.2) The flanks of the groove are concave, namely with a substantially flat groove bottom, reference being made to the advantageous variants according to number 1 with regard to the seated emergency seal.
3) Die Flanken der Nut verlaufen doppelkonisch, 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) The flanks of the groove are double-conical, 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.
4) Die Flanken der Nut verlaufen konisch, und zwar unter Verkleinerung der Nutbreite zum Nutboden hin, und zwar bei einem im wesentlichen ebenflächigen Nutboden, wobei es bei dieser Gestaltungsvariante von Vorteil ist, wenn die Nut mit strangförmig verlaufenden Haltenasen ausgestattet ist, die das Herausfallen der Notdichtung verhindern. Zweckmäßigerweise ist dabei innerhalb jeder Flanke der Nut eine einzige Haltenase vorhanden, wobei die beiden gegenüberliegenden Haltenasen etwas unterhalb des Rückens des Dichtprofiles angeordnet sind.4) The flanks of the groove run conically, namely by reducing the width of the groove towards the groove bottom, and that with an essentially flat groove bottom, it being advantageous in this design variant if the groove is equipped with strand-like retaining lugs that prevent it from falling out prevent the emergency seal. Expediently, 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.
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 emergency seal is expediently in the form of a strip, specifically with 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 4 verwiesen wird.It is also expedient if the corners of the frame of the sealing frame are also equipped with at least one groove which merges into the groove of the sealing profile, reference being made to the explanations according to numbers 1 to 4 with regard to the advantageous design variants of the groove and the emergency seal.
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 expedient if the emergency seal is inserted into the groove just before the components or segments are joined together. This is particularly important in the case of an emergency seal that consists of sealing material that can be activated with water (e.g. Hydrotite®).
Konstruktive Gestaltungsvarianten des Dichtprofiles werden im Rahmen der Figurenbeschreibung vorgestelltConstructive design variants of the sealing profile are presented in the context of the figure description
Die Erfindung wird nun anhand von Ausführungsbeispielen unter Bezugnahme auf schematische Zeichnungen erläutert Es zeigen:The invention will now be explained on the basis of exemplary embodiments with reference to schematic drawings, in which:
Fig. 1 ein Tunnel, bestehend aus Segmenten sowie Längs- und Querfugen;Figure 1 is a tunnel consisting of segments and longitudinal and transverse joints.
Fig. 2 eine Dichtanordnung ohne Versatz;2 shows a sealing arrangement without offset;
Fig. 3 eine Dichtanordnung mit Versatz;3 shows a sealing arrangement with offset;
Fig. 4 eine Dichtanordnung mit sehr starkem Versatz;4 shows a sealing arrangement with a very large offset;
Fig. 5 ein Dichtprofil mit einer einzigen Nut und Haltenasen;Figure 5 shows a sealing profile with a single groove and retaining lugs.
Fig. 6 ein Dichtprofil gemäß Fig. 5 mit einsitzender Notdichtung;6 shows a sealing profile according to FIG. 5 with an emergency seal in place;
Fig. 7 ein Dichtprofil mit zwei Nuten und Haltenasen; Fig. 8 ein Dichtprofil mit einer Nut, die im wesentlichen von kreisförmiger Querschnttsgestalt ist7 shows a sealing profile with two grooves and retaining lugs; Fig. 8 is a sealing profile with a groove which is essentially circular cross-section
Fig. 9 ein Dichtprofil gemäß Fig. 8 mit einsitzender Notdichtung mit flanschförmiger Verbreiterung der Dichtfläche;9 shows a sealing profile according to FIG. 8 with a seated emergency seal with a flange-shaped widening of the sealing surface;
Fig. 10 ein Dichtprofil mit einer Nut, dessen Flanken doppelkonisch bzw. konkav verlaufen;10 shows a sealing profile with a groove, the flanks of which are double-conical or concave;
Fig. 11 ein Dichtprofil gemäß Fig. 10 mit einer einsitzenden Notdichtung in Schnurform.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 dargestellt2 to 4 include a cross-sectional view of the longitudinal joint along the section line A-A (Fig. 1). Although the groove grooves and channels change their shape when loaded (i.e. under pressure), these profile parts are shown in their original form in the schematic drawings
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 constructive descriptions of the sealing profile, the groove and the emergency seal set out in the claims.
In Verbindung mit diesen Figuren gilt folgende Bezugsziffernliste.In connection with these figures, the following list of reference numbers applies.
1 Tunnel1 tunnel
2 Segment 2' Segment 2" Segment2 segment 2 'segment 2 "segment
3 Querfuge (Ringfuge)3 transverse joint (ring joint)
4 Längsfuge4 longitudinal joints
5 T-Stoßanordnung5 T-joint arrangement
6 Dichtanordnung6 sealing arrangement
7 Aussparung Dichtprofil ' Dichtprofil Notdichtung Rücken des Dichtprofiles Nut Flanke Nutboden Haltenase Basisseite des Dichtprofiles Kanal Rillennut Kanal Notdichtung in Streifenform Freiraum Dichtprofil Nut Nut Kanal Nut Flanke Nutboden trichterförmige Öffnung Notdichtung Dichtfläche mit flanschförmiger Verbreiterung Nut Flanke ' Flanke Nutboden Flanke Notdichtung Dichtfläche 36' Dichtfläche 37 Freiraum7 recess Sealing profile 'sealing profile emergency seal back of the sealing profile groove flank groove bottom retaining lug base side of the sealing profile channel groove groove channel emergency seal in strip form free space sealing profile groove groove channel groove flank groove bottom funnel-shaped opening emergency seal sealing surface with flange-shaped widening groove flank' flank groove bottom flank emergency seal sealing surface 36 'sealing surface 37 clearance
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 Dichtaπordnung 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 in turn has a sealing profile 8 made of elastomeric material. 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.The emergency seal 9 is used according to the invention when the following constellations arise.
a) Die Segmente 2' und 2" verschieben sich in Pfeilrichtung gemäß Fig. 2, wodurch sich Spalte auftun.a) The segments 2 'and 2 "move in the direction of the arrow shown in FIG. 2, whereby gaps open.
b) Die Segmente 2' und 2" sind bei Einbau unter Versatz X in Pfeilrichtung gemäß Fig. 3 bzw. 4 verschoben.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 Entfaltung 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, the additional sealing effect can develop in the presence of air humidity or in the event of water penetration, namely as a result of a swelling process with an increase in volume 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. 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.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. Between the essentially flat groove bottom 13 and the base side 15 of the sealing profile, two channels 16 are present, 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, seen in cross section, has a trapezoidal shape and does not fill the entire groove, with the formation of a free space 20 the emergency seal 15 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 veriaufen, 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 run in an arc shape, and these also merge into the groove base 27 in an arc shape, with the formation of a groove having 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).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 present in the form of a cord, essentially with it circular cross-sectional shape. The sealing surface 36 of the emergency seal is located here to form a free space 37 somewhat below the spine 10 of the sealing profile, a variant of which is also possible for the sealing surface 36 'to be flush with the spine 10 (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 is of outstanding importance in the context of tunnel construction, this principle can also be applied to other building constructions, for example when sealing socket pipes in sewer construction (EP-B-0 449 082).

Claims

Ansprüche Expectations
1. Dichtanordnung (6), bestehend aus1. sealing arrangement (6) consisting of
- zwei aneinanderstoßenden Bauteilen aus Beton, Stahl, Stahlbeton, Gußeisen oder anderen Materialien sowie aus einem Dichtprofil aus elastomerem Werkstoff, das den Spalt zwischen den beiden Bauteilen abdichtend überbrückt;- Two abutting components made of concrete, steel, reinforced concrete, cast iron or other materials as well as a sealing profile made of elastomeric material, which seals the gap between the two components;
- wobei die Bauteile insbesondere Segmente (2, 2', 2") sind, die zu einem rohrförmigen Tunnel (1) zusammengesetzt sind, und zwar unter Bildung von Quer- und Längsfugen (3) bzw. (4), wobei jedes Segment an seiner Stoßseite vorzugsweise mit wenigstens einer alle Segmentstoßseiten erfassenden umlaufenden Aussparung (7) versehen ist wobei sich wiederum in jeder Aussparung ein strangförmig verlaufendes Dichtprofil (8, 8', 21) 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;- The components are in particular segments (2, 2 ', 2 "), which are assembled into a tubular tunnel (1), with the formation of transverse and longitudinal joints (3) or (4), each segment being its butt side is preferably provided with at least one circumferential recess (7) which encompasses all of the segment butt sides, and in each recess there is in turn a strand-shaped sealing profile (8, 8 ', 21), in particular with strand-shaped groove grooves which are arranged on the base side of the sealing profile , and / or is also provided with channels running in the form of a strand, to be precise with the formation of a sealing frame with frame corners;
dadurch gekennzeichnet daßcharacterized in that
der Rücken (10) des Dichtprofiles (8, 8', 21) wenigstens eine strangförmig verlaufende Nut (11 , 22, 23, 25, 31) aufweist, die für die Aufnahme einer Notdichtung (9, 19, 29, 35), insbesondere eines aktivierbaren, insbesondere wiederum eines mit Wasser aktivierbaren Dichtmaterials, vorgesehen istthe back (10) of the sealing profile (8, 8 ', 21) has at least one strand-shaped groove (11, 22, 23, 25, 31), which is particularly suitable for receiving an emergency seal (9, 19, 29, 35) an activatable sealing material, in particular a sealing material that can be activated with water
2. Dichtanordnung nach Anspruch 1 , dadurch gekennzeichnet, daß der Rücken (10) des Dichtprofiles (8, 8') eine einzige Nut (11) aufweist die sich im Bereich der Profilmitte befindet. 2. Sealing arrangement according to claim 1, characterized in that the back (10) of the sealing profile (8, 8 ') has a single groove (11) which is located in the region of the profile center.
3. Dichtanordnung nach Anspruch 1, dadurch gekennzeichnet daß der Rücken (10) des Dichtprofiles (21) zwei Nuten (22, 23) aufweist die im wesentlichen spiegelsymmetrisch zueinander angeordnet sind, und zwar bezogen auf die senkrechte Profilmittelebene Y.3. Sealing arrangement according to claim 1, characterized in that the back (10) of the sealing profile (21) has two grooves (22, 23) which are arranged essentially mirror-symmetrically to one another, specifically with respect to the vertical profile center plane Y.
4. Dichtanordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet daß die Flanken (26) der Nut (25) bogenförmig verlaufen, wobei die Flanken zudem bogenförmig in den Nutboden (27) übergehen, und zwar unter Bildung einer Nut mit einer im wesentlichen kreisförmigen Querschnittsgestalt, wobei die Nut insbesondere mit einer etwa trichterförmigen Öffnung (28) versehen ist.4. Sealing arrangement according to one of claims 1 to 3, characterized in that the flanks (26) of the groove (25) extend arcuately, the flanks also arcuate into the groove bottom (27), to form a groove with a substantially circular cross-sectional shape, the groove being in particular provided with an approximately funnel-shaped opening (28).
5. Dichtanordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet daß die Flanken (34) der Nut (31) konkav veriaufen, und zwar bei einem im wesentlichen ebenflächigen Nutboden (33).5. Sealing arrangement according to one of claims 1 to 3, characterized in that the flanks (34) of the groove (31) are concave, with a substantially flat groove bottom (33).
6. Dichtanordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Flanken (12) der Nut (11) konisch verlaufen, und zwar unter Verkleinerung der Nutbreite zum Nutboden hin, und zwar bei einem im wesentlichen ebenflächigen Nutboden (13).6. Sealing arrangement according to one of claims 1 to 3, characterized in that the flanks (12) of the groove (11) are conical, namely with a reduction in the width of the groove towards the groove bottom, with a substantially flat groove bottom (13).
7. Dichtanordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet daß die Flanken (32, 32') der Nut (31) doppelkonisch verlaufen, wobei die Nutbreite im Bereich der halben Nuttiefe am größten ist, und zwar bei einem im wesentlichen ebenflächigen Nutboden (33).7. Sealing arrangement according to one of claims 1 to 3, characterized in that the flanks (32, 32 ') of the groove (31) are double-conical, the groove width being greatest in the region of half the groove depth, with a substantially flat groove bottom (33).
8. Dichtanordnung nach einem der Ansprüche 1 bis 7, insbesondere in Verbindung mit Anspruch 6, dadurch gekennzeichnet, daß die Nut (10) mit strangförmig verlaufenden Haltenasen (14) ausgestattet ist, die das Herausfallen der Notdichtung (19) verhindern.8. Sealing arrangement according to one of claims 1 to 7, in particular in connection with claim 6, characterized in that the groove (10) is equipped with strand-like holding lugs (14) which prevent the emergency seal (19) from falling out.
9. Dichtanordnung nach Anspruch 8, dadurch gekennzeichnet, daß innerhalb jeder Flanke (12) der Nut (11) eine einzige Haltenase (14) vorhanden ist. 9. Sealing arrangement according to claim 8, characterized in that a single retaining lug (14) is present within each flank (12) of the groove (11).
10. Dichtanordnung nach Anspruch 9, dadurch gekennzeichnet, daß die beiden gegenüberliegenden Haltenasen (14) etwas unterhalb des Rückens (10) des Dichtprofiles (8') angeordnet sind.10. Sealing arrangement according to claim 9, characterized in that the two opposite retaining lugs (14) are arranged slightly below the back (10) of the sealing profile (8 ').
11. Dichtanordnung nach einem der Ansprüche 1 bis 10, insbesondere in Verbindung mit Anspruch 6, dadurch gekennzeichnet daß die Notdichtung (19) in Streifenform vorliegt, und zwar mit im wesentlichen rechteckiger oder trapezförmiger Querschnittsgestalt.11. Sealing arrangement according to one of claims 1 to 10, in particular in connection with claim 6, characterized in that the emergency seal (19) is in strip form, with a substantially rectangular or trapezoidal cross-sectional shape.
12. Dichtanordnung nach einem der Ansprüche 1 bis 10, insbesondere in Verbindung mit einem der Ansprüche 4, 5 oder 7, dadurch gekennzeichnet, daß die Notdichtung (35) in Schnurform vorliegt, und zwar mit im wesentlichen kreisförmiger Querschnittsgestalt.12. Sealing arrangement according to one of claims 1 to 10, in particular in connection with one of claims 4, 5 or 7, characterized in that the emergency seal (35) is in the form of a cord, with an essentially circular cross-sectional shape.
13. Dichtanordnung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet daß die Notdichtung (19, 35) nicht die gesamte Nut ausfüllt und zwar unter Bildung eines Freiraumes (20, 37) zwischen dem Rücken (10) des Dichtprofiles und der Notdichtung.13. Sealing arrangement according to one of claims 1 to 12, characterized in that the emergency seal (19, 35) does not fill the entire groove, with formation of a free space (20, 37) between the back (10) of the sealing profile and the emergency seal.
14. Dichtanordnung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Notdichtung (35) im wesentlichen vollständig die Nut ausfüllt, wobei die obere Dichtfläche (36') der Notdichtung etwa fluchtend mit dem Rücken (10) des Dichtprofiles verläuft.14. Sealing arrangement according to one of claims 1 to 12, characterized in that the emergency seal (35) substantially completely fills the groove, the upper sealing surface (36 ') of the emergency seal being approximately flush with the back (10) of the sealing profile.
15. Dichtanordnung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet ,daß die Notdichtung (29) im wesentlichen vollständig die Nut ausfüllt, wobei die obere Dichtfläche (30) eine flanschförmige Verbreiterung aufweist, und zwar unter Umgreifung des Rückens (10) des Dichtprofiles.15. Sealing arrangement according to one of claims 1 to 12, characterized in that the emergency seal (29) substantially completely fills the groove, the upper sealing surface (30) having a flange-shaped widening, namely by embracing the back (10) of the sealing profile .
16. Dichtanordnung nach Anspruch 2, dadurch gekennzeichnet daß beidseitig zur Nut (11 ) wenigstens ein Kanal (18) angeordnet ist.16. Sealing arrangement according to claim 2, characterized in that at least one channel (18) is arranged on both sides of the groove (11).
17. Dichtanordnung nach Anspruch 3, dadurch gekennzeichnet daß zwischen den beiden Nuten (22, 23) wenigstens ein Kanal (24) angeordnet ist. 17. Sealing arrangement according to claim 3, characterized in that at least one channel (24) is arranged between the two grooves (22, 23).
18. Dichtanordnung nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet daß zwischen dem Nutboden (13) und der Basisseite (15) des Dichtprofiles wenigstens ein Kanal (16) angeordnet ist.18. Sealing arrangement according to one of claims 1 to 17, characterized in that at least one channel (16) is arranged between the groove bottom (13) and the base side (15) of the sealing profile.
19. Dichtanordnung nach einem der Ansprüche 1 bis 18, dadurch gekennzeichnet, daß die Rahmenecken des Dichtrahmens ebenfalls mit wenigstens einer Nut ausgestattet sind, die fluchtend in die Nut des Dichtprofiles übergeht.19. Sealing arrangement according to one of claims 1 to 18, characterized in that the frame corners of the sealing frame are also equipped with at least one groove which merges into the groove of the sealing profile.
20. Dichtanordnung nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet daß die Notdichtung unmittelbar vor dem Zusammenfügen der Bauteile bzw. der Segmente in die Nut eingesetzt wird. 20. Sealing arrangement according to one of claims 1 to 19, characterized in that the emergency seal is used immediately before the assembly of the components or the segments in the groove.
EP96901220A 1995-02-01 1996-01-30 Seal arrangement for tubular tunnel segments Expired - Lifetime EP0807204B1 (en)

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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

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Publication number Publication date
EP0807204B1 (en) 1999-04-07
AU4534096A (en) 1996-08-21
AU734698B2 (en) 2001-06-21
US5888023A (en) 1999-03-30
WO1996023958A1 (en) 1996-08-08
DE19603188A1 (en) 1996-08-08
JPH10502983A (en) 1998-03-17
ATE178691T1 (en) 1999-04-15
DE59601607D1 (en) 1999-05-12
ES2132879T3 (en) 1999-08-16
JP2796437B2 (en) 1998-09-10

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