EP0574559A1 - Procede de prevention du deplacement d'une moulure profilee d'etancheite par rapport a un element de tunnel et moulure profilee d'etancheite produite selon ce procede. - Google Patents

Procede de prevention du deplacement d'une moulure profilee d'etancheite par rapport a un element de tunnel et moulure profilee d'etancheite produite selon ce procede.

Info

Publication number
EP0574559A1
EP0574559A1 EP92924534A EP92924534A EP0574559A1 EP 0574559 A1 EP0574559 A1 EP 0574559A1 EP 92924534 A EP92924534 A EP 92924534A EP 92924534 A EP92924534 A EP 92924534A EP 0574559 A1 EP0574559 A1 EP 0574559A1
Authority
EP
European Patent Office
Prior art keywords
sealing profile
profile strip
strip
tunnel
profiled
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
EP92924534A
Other languages
German (de)
English (en)
Other versions
EP0574559B1 (fr
Inventor
Norbert Herwegh
Juergen Dahm
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.)
DAETWYLER AG SCHWEIZERISCHE KABEL- GUMMI- und KUNSTSTOFFWERKE
Original Assignee
DAETWYLER AG SCHWEIZERISCHE KABEL- GUMMI- und KUNSTSTOFFWERKE
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 DAETWYLER AG SCHWEIZERISCHE KABEL- GUMMI- und KUNSTSTOFFWERKE filed Critical DAETWYLER AG SCHWEIZERISCHE KABEL- GUMMI- und KUNSTSTOFFWERKE
Publication of EP0574559A1 publication Critical patent/EP0574559A1/fr
Application granted granted Critical
Publication of EP0574559B1 publication Critical patent/EP0574559B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 method for preventing the displacement of a rigidly attached to a tunnel component elastic sealing profile strip relative to the element under the action of frictional forces acting on it during the assembly of this or another adjacent element and a sealing profile strip produced by this method.
  • concrete tunnel elements so-called tubbings. These segments are adapted to the arch-like shape of the tunnel, i.e. they are curved. These segments must not be too large for technical reasons, but above all for reasons of assembly technology. It is therefore necessary to have several elements arranged side by side over the entire circumference of the tunnel.
  • each of these end faces defines a plane that, like other end faces, does not run parallel to the longitudinal axis, but converges against this line, i.e. intersects it at a distant point.
  • segments are not easy to put together because concrete on concrete does not seal, even when the surface is so smooth. Water from the mountain interior that surrounds the tunnel could drip into the tunnel between these joints.
  • each tubbing has sealing profile strips made of elastic material embedded in grooves on its end faces, which thus extend all around it.
  • the international publication WO91 / 0757T shows what such sealing profile strips look like.
  • the section stone mentioned above also receives such strips. The problem now arises when this capstone is driven into the wedge-shaped joint.
  • the next measure therefore serves to reduce the coefficient of friction between the sealing profile strips in contact. This could be accomplished by previously brushing a lubricant onto the surface of the bar. However, this would require an additional operation and is particularly disadvantageous because the dripping or flowing of lubricants is not desirable, especially since the tunnel boring machine is still directly below the tubbing used immediately after the tunneling and it is not safe to do so. whether the lubricant does not affect this machine
  • Another measure that has already been carried out frequently is to anchor the sealing profile strip even better in the groove of the tubbing, mostly by using a stronger adhesive in the form of a two-sided adhesive is achieved.
  • the sliding friction of the two sealing profile strips on each other is not reduced, so that this measure does not necessarily lead to the intended effect. Since another measure, namely changing the malar ial of the sealing profile strip is out of the question, because there is no extrusable material that is also very elastic and has a low coefficient of sliding friction, a more appropriate solution had to be sought.
  • FIG. 1 a first embodiment with a harder layer, only over part of the area adjacent to the contact longitudinal side,
  • FIG. 2 a second embodiment in which the entire area consists of hard material
  • Figure 3 is a perspective view of three Tunnel vault elements in the apex of the tunnel.
  • Figure 4 a sealing profile strip according to Figure 2 before insertion into the groove.
  • Figures 1 and 2 show a sealing profile strip 1 according to the already mentioned international publication WO91 / 07571. Details of their execution can be found in the cited publication. For the present invention, only the three openings 2 and four channels 3 are important. With the latter, it should be noted that their highest points 4 all lie on a level 5.
  • the strip 1 is embedded in a groove 6 of a tunnel cladding element 7, the so-called tubbing, and anchored there, mostly by gluing.
  • the cross section of the strip 1 has two long sides 8, 9. The long side 8 lies on the bottom of the groove 6.
  • Figure 1 shows the two strips 1, 1 'and thus their long sides 9, 9' before assembly, that is, before mutual compression.
  • the segments 7, 7 ' are elements which have four narrow or end faces perpendicular to each other, and that a groove with a sealing profile strip is arranged in each end face.
  • the strip 1 now has a layer 10, which consists of a harder material than that of the rest of the strip, directly below its long side 9, the contact long side. This hardness can be 90 - 95 Shore A units.
  • Such a hard but still elastic material has a coefficient of sliding friction that is already considerably lower than that of the normal last material.
  • a lubricant or lubricant is added to this material, which further reduces this coefficient.
  • This wax-like lubricant has the property that after the admixture and after the vulcanization of the sealing profile strip, it diffuses out of the material on its surface and thus creates a very smooth surface.
  • FIG. 3 shows two segments on the apex of a tunnel vault, which is only symbolically represented by its longitudinal axis AA.
  • the two tubbings are special designs in that, unlike the others, they are not exactly rectangular when viewed from above.
  • Their two mutually directed end faces 11 do not run parallel to the axis AA mentioned, but each form a plane that penetrates one another on this axis.
  • the two end faces 11 thus run in a wedge shape with respect to one another. Between them, however, is a fugue in which a Matching tunnel arch element 12, the keystone, is used.
  • the layer 10 can only comprise that part of the region 14 which extends from the contact longitudinal side 9 to the imaginary plane 5 formed by the tips 4 of the openings 3, that is to say only over part of its thickness d. However, it can also encompass the entire area 14, as shown in FIG. 2. How thick the layer 10 must be depends on the local conditions.
  • the layer 10 has not only the purpose, together with the lubricant, of greatly reducing the coefficient of sliding friction. A lubricant alone could do that too. However, a lot more lubricant is required because the soft material of the remaining part of the strip 1 would absorb a lot more lubricant. Hard material takes less; it also diffuses better on the surface of the bar, i.e. on the long side 9. Another advantage is that the hard material of the layer 10 allows larger channels 3 and larger grooves 2 than is customary for the strips without a layer 10. On the one hand this saves material, on the other hand the more elastic part of the sealing strip can be compressed more easily.
  • the area of the total cross section of the strip must not be larger than the cross section of the groove 6, because the strip must be compressed to this groove during compression, so it must disappear in the groove 6.
  • a third advantage is that the layer 10, because of its harder material, can also better withstand the tensile stresses that occur during sliding friction. So it acts like a kind of reinforcement. If you connect the four sealing profile strips around each tubbing or the end stone 12 at their ends by means of special corner pieces that are vulcanized on, and if these corners also have a hard layer, a solid frame made of molding material is created. It prevents longitudinal displacements of the frame part exposed to compression, because the tensile and compressive stresses occurring in the process have an effect around the corners and are absorbed by the frame parts running perpendicular to this frame part. Due to the hard material of the layer 10, this elongation under tensile forces is already small, which is also the case has a positive effect on the bar remaining in its original position.
  • the two measures namely reducing the coefficient of sliding friction and stretching, can still be improved.
  • the sliding resistance can be reduced even further by adding the conductive material in powder or granulate form to the hard material of the layer 10 in addition to the aforementioned friction-reducing admixture, and then connecting the layer 10 to an electrical circuit. Due to the resulting heating, the layer 10 temporarily becomes somewhat softer, which facilitates the assembly of the sealing profile strip, which is why this measure must be carried out before insertion. After cooling, however, the layer becomes hard again and, above all, its surface becomes even smoother than at the beginning. This reduces the coefficient of sliding friction again.
  • the electrically conductive admixture can be used later, after assembly, to obtain controls over the position of the sealing profile strip under the effect of any mountain pressure in the tunnel and thus over the sealing effect of the strip.
  • the further reduction in the elongation of the layer 10 can be done by also Plastic fibers added. After vulcanization, they behave like reinforcement and thus reduce the stretch even further. Distortion of the sealing profile strip in its longitudinal direction by the frictional forces that occur when inserting the cap 12 is avoided in this way with practically complete certainty.
  • anchoring ribs 15 are provided. These are located on the short sides 16 of the strip 1, that is to say on those which are at an angle to the lower longitudinal side 8 and are opposite the walls of the groove 6.
  • the ribs 15 also result in very good anchoring against the frictional forces acting in the longitudinal direction of the groove when the stone 12 is inserted. This is particularly the case when these ribs 15 , as shown in Figure 4, in the form of Barbs that are directed upward. They not only prevent longitudinal displacements, but also, due to their upward pointing tips, any pulling out of the bar from the groove.

Landscapes

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

Abstract

Lorsque le dernier élément de la voûte d'un tunnel, la brique de calage, est posé dans une voûte de tunnel, des forces élevées de frottement sont générées entre les moulures profilées d'étanchéité de la brique de calage et celles des voussoirs déjà posés, et peuvent entraîner le déplacement des moulures profilées d'étanchéité dans leurs rainures longitudinales. On applique donc sur les surfaces des moulures profilées d'étanchéité en contact une couche (10) d'un matériau plus dur enduite d'un lubrifiant que se diffuse dans la surface. Outre cette mesure de prévention d'un déplacement des moulures profilées d'étanchéité, celles-ci sont aussi ancrées dans leurs joints par des serrures d'ancrage (15) qui viennent en contact avec les parois de la rainure (6) et qui empêchent ainsi, conjointement avec l'adhésif appliqué, la moulure profilée de se déplacer dans le sens de la longueur.
EP92924534A 1992-01-06 1992-12-21 Procede de prevention du deplacement d'une moulure profilee d'etancheite par rapport a un element de tunnel et moulure profilee d'etancheite produite selon ce procede Expired - Lifetime EP0574559B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH9292A CH686383A5 (de) 1992-01-06 1992-01-06 Verfahren zur Herstellung einer nicht verschiebbaren Dichtungsprofilleiste und nach diesem Verfahren hergestellte Leiste.
CH9/92 1992-01-06
PCT/CH1992/000246 WO1993014297A1 (fr) 1992-01-06 1992-12-21 Procede de prevention du deplacement d'une moulure profilee d'etancheite par rapport a un element de tunnel et moulure profilee d'etancheite produite selon ce procede

Publications (2)

Publication Number Publication Date
EP0574559A1 true EP0574559A1 (fr) 1993-12-22
EP0574559B1 EP0574559B1 (fr) 1997-05-14

Family

ID=4177343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92924534A Expired - Lifetime EP0574559B1 (fr) 1992-01-06 1992-12-21 Procede de prevention du deplacement d'une moulure profilee d'etancheite par rapport a un element de tunnel et moulure profilee d'etancheite produite selon ce procede

Country Status (6)

Country Link
EP (1) EP0574559B1 (fr)
AT (1) ATE153102T1 (fr)
CH (1) CH686383A5 (fr)
DE (1) DE59208501D1 (fr)
FR (1) FR2685935B1 (fr)
WO (1) WO1993014297A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020130A2 (fr) 1999-09-14 2001-03-22 Phoenix Ag Ensemble etanche
CN110284909A (zh) * 2019-07-31 2019-09-27 中铁第四勘察设计院集团有限公司 一种减摩的管片防水密封垫及盾构管片防水结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0982472B1 (fr) * 1998-08-26 2003-03-12 Tarmac Limited Systeme d'étancheité pour voussoir de tunnel
ATE325258T1 (de) 2000-03-30 2006-06-15 Phoenix Ag Dichtanordnung für tunnelbausegmente
DK1302626T3 (da) * 2001-10-11 2006-04-03 Daetwyler Ag Tætningsprofil til tunnelsegmenter
CN110318778A (zh) * 2019-07-31 2019-10-11 中铁第四勘察设计院集团有限公司 一种减小摩擦变形的管片防水密封垫及盾构管片防水结构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1239345B (de) * 1964-06-24 1967-04-27 Gumba Gummi Im Bauwesen G M B Gleitlager fuer Bruecken und aehnliche Bauwerke
DE7229665U (de) * 1972-08-10 1972-11-23 Phoenix Gummiwerke Ag Dichtungsprofil fur Tubbings
DE3731186A1 (de) * 1987-09-17 1989-04-06 Phoenix Ag Gelenkplatte
US5074711A (en) * 1989-08-19 1991-12-24 Phoenix Ag Profiled seal for tunnel segments
CH679510A5 (fr) * 1989-11-10 1992-02-28 Daetwyler Ag

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9314297A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020130A2 (fr) 1999-09-14 2001-03-22 Phoenix Ag Ensemble etanche
CN110284909A (zh) * 2019-07-31 2019-09-27 中铁第四勘察设计院集团有限公司 一种减摩的管片防水密封垫及盾构管片防水结构

Also Published As

Publication number Publication date
CH686383A5 (de) 1996-03-15
DE59208501D1 (de) 1997-06-19
FR2685935B1 (fr) 1999-02-05
WO1993014297A1 (fr) 1993-07-22
EP0574559B1 (fr) 1997-05-14
ATE153102T1 (de) 1997-05-15
FR2685935A1 (fr) 1993-07-09

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