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
Links
- 238000000034 method Methods 0.000 title claims description 15
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000000314 lubricant Substances 0.000 claims abstract description 13
- 238000004873 anchoring Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 50
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000012209 synthetic fiber Substances 0.000 claims 1
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 239000004575 stone Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 208000018459 dissociative disease Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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
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)
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)
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)
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 |
-
1992
- 1992-01-06 CH CH9292A patent/CH686383A5/de not_active IP Right Cessation
- 1992-02-26 FR FR9202222A patent/FR2685935B1/fr not_active Expired - Fee Related
- 1992-12-21 WO PCT/CH1992/000246 patent/WO1993014297A1/fr active IP Right Grant
- 1992-12-21 AT AT92924534T patent/ATE153102T1/de not_active IP Right Cessation
- 1992-12-21 DE DE59208501T patent/DE59208501D1/de not_active Expired - Fee Related
- 1992-12-21 EP EP92924534A patent/EP0574559B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9314297A1 * |
Cited By (2)
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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