EP0752503B1 - Ringdichtung für Spalte mehrschaliger Bauwerke, insbesondere des Untertagebetriebes - Google Patents
Ringdichtung für Spalte mehrschaliger Bauwerke, insbesondere des Untertagebetriebes Download PDFInfo
- Publication number
- EP0752503B1 EP0752503B1 EP96106818A EP96106818A EP0752503B1 EP 0752503 B1 EP0752503 B1 EP 0752503B1 EP 96106818 A EP96106818 A EP 96106818A EP 96106818 A EP96106818 A EP 96106818A EP 0752503 B1 EP0752503 B1 EP 0752503B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing element
- sealing
- annular gap
- sealing ring
- gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims description 85
- 238000010276 construction Methods 0.000 title description 8
- 239000004753 textile Substances 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 230000001788 irregular Effects 0.000 claims description 2
- 238000004904 shortening Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 2
- 239000004566 building material Substances 0.000 description 8
- 239000004567 concrete Substances 0.000 description 6
- 238000005422 blasting Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
Definitions
- the invention relates to a ring seal for gaps multi-layer structures according to the preamble of the claim 1.
- the invention relates in particular to ring seals in shaft and tunnel construction, as well as in sewer construction, where often a multi-layered structure as an extension of the underground Cavity is provided.
- the outer shell of the structure can be from the exposed mountain range yourself or from a provisional, mostly with Shotcrete realized expansion exist.
- the inner one Shell of such a building, which the inner wall of the annular gap usually exists from a statically load-bearing extension in concrete, or Reinforced concrete, for which also waterproof concrete (so-called Waterproof concrete).
- the invention Ring seal is used with the help of a hollow sealing element for sealing the annular gap at the front, to either water or mud inflows from this To prevent gaps, or around behind the forehead seal to fill the annulus.
- Such O-ring seals are technically complex. There it to a certain annular gap width and diameter are designed, shape changes of the Annular gap, approximately different annulus diameters and widths negatively affect the seal. Since one with the geared to the individual application Seal the ring seal only the relevant ring gap can, but under given conditions only is to be observed with relatively large tolerances adequate sealing of the annular gap when in use these O-ring seals may be substantial Difficulties. In particular, can be due to the process deviating clear annular gap diameter, the for example through the tunneling technology or from other reasons are required, only with two side-by-side sealing elements of the described Kind of be sealed. Then often arise Difficulty installing these due to space constraints Multiple sealing elements.
- the sealing element according to the invention can also be used simplify the features of claim 2.
- the one required between the ends in the overlap Sealing using the pressurized Filler achieved the lacing tension of the surrounding end enlarged and thereby to seal Creating the nested ends leads.
- Such Embodiments of the invention have the additional Advantage that the sealing element has a constant throughout Can have diameter.
- the material of the tube in particular Sealing element is particularly suitable in the claim 3 labeled textile material.
- the hose can then be made from round woven plastic threads accordingly high strength. Through the weave, e.g. canvas or twill weave, results when filling with curing building materials through a drainage effect the hose jacket, which is used for the temporary hardening of the Building material contributes and thereby simplifies the finishing work and accelerated.
- the size of the overlap depends on the individual case, but usually a length of about 0.5 to about 2 m have if the features of claim 4 realized become. Because here is the plugged in Hose end closed, so that the inflation and Put the inner hose end in the immediate Connection to the assembly results when the filler by one or more beyond the overlap of the Hose ends through in the hose of the sealing element opening filling valves is introduced.
- the design-related, deviating clear annular gap widths from the process-related distinguish different ring gap widths.
- the design deviating annular gap widths are due to the design and can, for example due to the irregular eruption of the mountains resulting from the blasting work. These will according to the content of claim 6 by the excess of the hose diameter compared to the inside diameter Compensated for the annular gap with the sealing element itself, without the sealing quality suffering. It Experience has shown that it does not play a significant role Role whether the annular gap width differences over a large area occur, which is the case, for example, when the Longitudinal axis of the inner shell of a multi-shell construction not identical to the longitudinal axis of the outer one Shell is. For this eccentric arrangement, for example leaves the shells delimiting the annular gap the compensation also according to claim 6 make the appropriate choice of hose diameter. Of course, this applies all the more to smaller differences, such as occur with a breakout line, which is generated by the blasting work.
- Annular gap widths differ due to the process deviating clear annular gap widths frequently by their comparatively larger size. That applies, for example for shield drives in which Take-off distance a comparatively wide annular gap between Accepted shield and mountains or aid structure must become. Then it is advisable from the Features of claim 7 to make use of.
- the tightness results from the arrangement of two or more tubular sealing elements one inside the other, as described above.
- the tunnel construction shown in Fig. 1 is circular and stands in the eruption 1 of the surrounding mountains 2.
- the expansion is with one not in its details shown shell made of shotcrete 3 provisionally secured.
- annular gap Between the outer shell 3 and for example consisting of prefabricated elements inner, statically load-bearing shell 4 is located there is an annular gap with a sealing element 5 its end face is sealed.
- the sealing element is there from a textile, according to the depicted Embodiment round woven hose. Indeed is the circular shape of the textile tube that is made up of the circular weave results, not for the invention Requirement. Other cross-sectional shapes also come into consideration. However, the circular weaving has the advantage that it facilitates the correct installation of the hose.
- the sealing element designated 5 is a ring seal used as formwork on the front of the annular gap 10, which with an initial liquid, later hardening building material becomes.
- the hose 11 made of textile material is with the nested ones as shown Pushed hose ends over the inner shell 4 or before installing the inner shell on the outer extension attached. After that, the hose is going beyond of the overlap 9 ending in the hose interior Filling valves 12-15 that act as check valves are trained with the hardening building material under Pressure filled. Due to the internal pressure, the hose spanned. Because the diameter d of the hose in the clamped State compared to the clear gap width w is enlarged, there is a deformation of the circular Initial circumference with the formation of flat contact surfaces to the two shells 3, 4 of the building.
- the 2 is an eccentric arrangement that of a steel or concrete pipe inner shell 4 in the outer shell 5 adopted.
- the point 16 denotes the point of penetration the longitudinal axis of the outer shell 5, while at 17 the Point of penetration of the longitudinal axis of the inner shell 4 is reproduced.
- Difference of the clear gap width with the simplified sealing element 5 thereby compensated is that the hose diameter d after the greatest width w of the annular gap is selected. He gives way thereby from the remaining clear annular gap widths.
- Gap widths w of the annular gap 10 result from the Construction of the extension.
- Figures 3 to 7 are however, process-related embodiments of the invention assumed that the width differences of the Seal the annular gap reliably.
- the surrounding mountains is uniform for these representations designated with 2.
- the front wall of the launch tube bears the reference numeral 18, while the cutting head of the Shield is designated 19.
- the shield tube 20 forms an annular gap 21 with the side wall or joint 22 the launch tube.
- the seal designated 23 serves for sealing Sealing element which, as with the aid of FIGS and 2 is constructed and arranged as described. It exists like there from a round woven textile tube. This is concentric in an outer one Sealing element 24 arranged, which like that Sealing element 23 is constructed and arranged.
- FIG. 3 shows the tunnel boring shield, as it stands in the shield or start tube 20 and limits the annular gap 21.
- the inner tube element 23 is as described with reference to Figures 1 and 2 spanned by a hardening filler, so that the end face sealing of the annular gap 21 results.
- FIG 3 shows the situation after the start of tunneling.
- the inner one Shell 25 which consists of the supporting expansion of the tunnel already installed. Seals on the outside the seal 26 of the shield tail 26a. The breakout line is shown at 27.
- the seal the annular gap is now carried out concentrically outer tube 24, namely by its pressure filling with hardening building material that reproduced at 28 is. This takes into account the fact that the annular gap is larger than that in the illustration above specified situation is.
- This seal itself consists of an open one Hose 26b, with its folded longitudinal edges 27a, 28a on the concentrically outer shell, for example is fixed by a sewn-on eyelet band.
- FIG. 6 sees a double seal against high groundwater pressures.
- a further seal is shown at 32 provided, which corresponds to the arrangement that in Fig. 5 is shown and described above.
- a support 34 is provided.
- the edition 34 consists of a strip of resilient Material. It can be an open-pore one Trade plastic strips, the following the System of the sealing element in turn with the help of hardening building material solidified and thereby rigid becomes.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Lining And Supports For Tunnels (AREA)
Description
- Fig. 1
- einen mehrschaligen Ausbau mit eingebauter Ringspaltabdichtung aus textilem Schlauchmaterial im Querschnitt,
- Fig. 2
- in der Fig. 1 entsprechender Darstellung eine Ringspaltabdichtung bei exzentrischer Schalenanordnung,
- Fig. 3
- die Abdichtung von unterschiedlich großen Ringspalten in einem teilweisen Längsschnitt durch den unteren Bereich eines Bohrschildes, wobei in der oberen Darstellung der Schild in der Startstrecke und in der unteren Darstellung im Vortrieb angenommen ist,
- Fig. 4
- eine abgeänderte Ausführungsform des Gegenstandes der Fig. 3,
- Fig. 5
- eine andere Ausführungsform des Gegenstandes der Fig. 3,
- Fig. 6
- eine weiter abgeänderte Ausführungsform der Fig. 3, und
- Fig. 7
- in der Fig. 3 entsprechender Darstellung eine weiter abgeänderte Ausführungsform.
Claims (13)
- Ringdichtung für Spalte (10) mehrschaliger Bauwerke, insbesondere des Untertagebetriebes, bei denen ein schlauchförmiges Dichtelement (5) nach Einlegen in den Ringspalt (10) zwischen Schalen (3, 4) des Bauwerkes und nach Einbringen eines Füllstoffes in das Dichtelement (5) mit dem geforderten Dichtdruck den den Spalt (10) begrenzenden Schalenflächen angelegt wird, dadurch gekennzeichnet, daß das aus wenigstens einem Schlauch (11) mit ineinandergesteckten Enden (7, 8) bestehende Dichtelement (5) beim Einlegen in den Spalt (10) mit Übermaß seines Umfanges gegenüber dem Umfang des Spaltes (10) versehen und durch Verkürzung der Überlappung (9) seiner Enden (7, 8) im Spalt (10) sowie durch Aufspannen des Dichtelementes (5) axial und radial angelegt ist.
- Ringdichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Dichtelement (5) durch wenigstens teilweises gegenseitiges Anlegen seiner ineinandergesteckten Enden (7, 8) gegen Austreten des unter Druck eingebrachten Füllstoffes abgedichtet ist.
- Ringdichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Mantel des Dichtelementes (5) aus textilem Material besteht.
- Ringdichtung nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das eingesteckte Ende (8) des Dichtelementes (5) verschlossen und der Füllstoff durch einen oder mehrere jenseits der Überlappung (9) der Enden (3, 4) in das Dichtelement (5) einmündende Füllventile (12 bis 15) eingebracht ist.
- Ringdichtung nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß über den Umfang des Ringspaltes (10, 21) konstruktiv abweichende lichte Ringspaltweiten durch das Übermaß des Dichtelementumfanges ausgeglichen sind.
- Ringdichtung nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Ausgleich durch ein Übermaß des Dichtelementumfanges bei exzentrischer Anordnung der den Ringspalt begrenzenden Schalen (3, 4) oder bei unregelmäßigen Mantelflächen (27) des Ringspaltes (10, 21) erfolgt ist.
- Ringdichtung nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß über den Spaltumfang verfahrensbedingt abweichende lichte Ringspaltenweiten durch Anordnung von zwei oder mehr ineinander liegenden Dichtelementen (23, 24) ausgeglichen sind.
- Ringdichtung nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die verfahrensbedingt geringere Ringspaltweite mit dem inneren Dichtelement (23) und die verfahrensbedingt größere Ringspaltweite mit dem äußeren Dichtelement (24) abgedichtet ist.
- Ringdichtung nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß für dauerflexibele Spaltabdichtungen nicht aushärtende Füllungen und für starre Abdichtungen aushärtende Baustoffe als Füllung des Dichtelementes (23, 21) vorgesehen sind.
- Ringdichtung nach einem oder mehreren der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Dichtelement (5, 23, 24) kraftschlüssig festgelegt ist.
- Ringdichtung nach einem oder mehreren der Ansprüche 1 bis 10, gekennzeichnet durch die Festlegung des Dichtelementes (5, 23, 24) mit Hilfe einer textilen Fixierung (26), die das konzentrische äußere Dichtelement (24) zusätzlich schützt.
- Ringdichtung nach Anspruch 11, dadurch gekennzeichnet, daß die textile Fixierung (26) aus einem Gewebestreifen (26a) besteht, dessen Längskanten (27a, 28a) zur Befestigung des Dichtelementes (5, 23, 24) dienen.
- Ringdichtung nach einem oder mehreren der Ansprüche 1 bis 12, dadurch gekennzeichnet, das abgegrenzte Mantelflächen des Dichtelementes (24) mit einer Auflage (34) aus einem nachgiebigen Längsstreifen, der als zusätzliche Dichtung (32) dient, versehen sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19515377 | 1995-05-02 | ||
DE19515377 | 1995-05-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0752503A1 EP0752503A1 (de) | 1997-01-08 |
EP0752503B1 true EP0752503B1 (de) | 1999-07-28 |
Family
ID=7760436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96106818A Expired - Lifetime EP0752503B1 (de) | 1995-05-02 | 1996-04-30 | Ringdichtung für Spalte mehrschaliger Bauwerke, insbesondere des Untertagebetriebes |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0752503B1 (de) |
DE (2) | DE59602525D1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19955766C2 (de) * | 1999-11-19 | 2003-04-03 | Hilti Ag | Verfahren und Vorrichtung zum Abdichten des Spalts zwischen einer in einem Bauelement vorhandenen Durchführung und einem die Durchführung durchragenden Gegenstand |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1065922A (en) * | 1964-03-20 | 1967-04-19 | Douglas Harold Perkins | Waterstop gasket |
US3593799A (en) * | 1969-07-29 | 1971-07-20 | Dow Chemical Co | Method of sealing a space with a hydrophilic solid gel |
NL8003166A (nl) * | 1980-05-30 | 1982-01-04 | Foevarosi Vizmuevek | Werkwijze voor het waterdicht afsluiten van de koppelingen tussen bouwelementen, in het bijzonder voorgefabriceerde gewapende betonelementen. |
-
1996
- 1996-04-30 DE DE59602525T patent/DE59602525D1/de not_active Expired - Lifetime
- 1996-04-30 DE DE19617268A patent/DE19617268A1/de not_active Withdrawn
- 1996-04-30 EP EP96106818A patent/EP0752503B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0752503A1 (de) | 1997-01-08 |
DE19617268A1 (de) | 1997-02-06 |
DE59602525D1 (de) | 1999-09-02 |
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