EP0127547A1 - Process for sealing the opposing surfaces of prefabricated concrete elements, especially for bridges an tunnels - Google Patents

Process for sealing the opposing surfaces of prefabricated concrete elements, especially for bridges an tunnels Download PDF

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Publication number
EP0127547A1
EP0127547A1 EP84401094A EP84401094A EP0127547A1 EP 0127547 A1 EP0127547 A1 EP 0127547A1 EP 84401094 A EP84401094 A EP 84401094A EP 84401094 A EP84401094 A EP 84401094A EP 0127547 A1 EP0127547 A1 EP 0127547A1
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EP
European Patent Office
Prior art keywords
elements
sealing
cavities
prefabricated concrete
tunnels
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.)
Withdrawn
Application number
EP84401094A
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German (de)
French (fr)
Inventor
Pierre Richard
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.)
Bouygues SA
Original Assignee
Bouygues SA
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 Bouygues SA filed Critical Bouygues SA
Publication of EP0127547A1 publication Critical patent/EP0127547A1/en
Withdrawn legal-status Critical Current

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    • 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
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E02D31/04—Watertight packings for use under hydraulic pressure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ

Definitions

  • the invention relates to the production of a seal between facing surfaces of two prefabricated concrete structural elements.
  • the present invention aims to avoid these drawbacks.
  • Submerged tunnels are generally made up of successive precast concrete elements and the problem arises of sealing each time between two successive elements.
  • a known solution consists in fixing a sealing sheet to one of the elements, this sheet having an protruding part against which the next element will apply, the application being maintained by gluing or by other means.
  • This solution has the drawbacks of being relatively expensive, difficult to implement and of not being suitable for maintenance. Easy after execution of the work.
  • the present invention also aims to avoid these drawbacks.
  • conjugate joints which consists in using an element already manufactured as one of the ends of the mold or of the formwork serving to the manufacture of the neighboring element. So-called conjugate surfaces are thus obtained which, when they are in contact (final structure) will have an extremely small interval, of the order of a tenth of a mm whereas when the elements are produced independently of each other, this interval is of the order of a millimeter.
  • the water necessary for the polymerization can be mixed with the material before injection or after injection either in the form of water or in the form of an aqueous solution.
  • sealing material it is not necessary for the sealing material to be applied to the entire surface, while both in the case of the sealing sheet and of the curable resin of the techniques. sealing materials are applied to the entire surface.
  • FIG. 1 represents a section in the tunnel wall at the junction between two neighboring elements, the seal being obtained according to the conventional technique
  • the facing surfaces 3 and 4 of the two elements are conjugate surfaces so that the interval between the two surfaces is at most of the order of the 10th of mm while this interval in the classic case ( Figure 1) can reach several mm.
  • the mating surfaces 3 and 4 have been provided, preferably by molding, with facing cavities 5,6 and a tube 7 leading to an accessible surface of the element is provided to be able to subsequently inject the sealing material into the cavities 5 and 6.
  • the number of cavities and the number of tubes is chosen at will.
  • the polymerizable and expansive material in the presence of water is one of the known materials, for example DECI 162 F from the company ARPEC which is based on polyurethane resin.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

One of the surfaces (3) is used as a mould to form the other surface (4). In addition, a material which polymerises and expands in the presence of water is used for sealing. <IMAGE>

Description

L'invention concerne la réalisation d'une étanchéité entre des surfaces en regard de deux éléments de structure préfabriqués en béton.The invention relates to the production of a seal between facing surfaces of two prefabricated concrete structural elements.

L'invention s'applique notamment à des structures de pont et à des structures de tunnel et elle sera expliquée en référence à ces deux applications, étant bien entendu que l'invention n'est pas limitée à ces deux applications, comme on le comprendra aisément.The invention applies in particular to bridge structures and to tunnel structures and it will be explained with reference to these two applications, it being understood that the invention is not limited to these two applications, as will be understood. easily.

Il est connu de réaliser l'étanchéité entre les surfaces en regard de deux voussoirs de pont en appliquant sur toute l'étendue de ces surfaces, immédiatement avant de les rapprocher, un matériau d'étanchéité durcissable à base de résine époxy et d'un durcisseur, le durcissement de ce matériau se faisant par polymérisation, dans les deux ou trois heures qui suivent son application. Cette tech- niaue exige des soins particuliers du fait que toute l'étendue des surfaces entre lesquelles on veut assurer l'étanchéité doit recevoir l'application et que cette application doit se faire pratiquement au moment de la mise en place des voussoirs en raison de la rapidité de la polymérisation.It is known to make the seal between the facing surfaces of two bridge segments by applying over the entire extent of these surfaces, immediately before bringing them together, a curable sealing material based on epoxy resin and a hardener, the hardening of this material being by polymerization, within two or three hours following its application. This technique requires special care due to the fact that the whole extent of the surfaces between which it is desired to seal must receive the application and that this application must be carried out practically at the time of the installation of the segments due to the speed of polymerization.

La présente invention vise à éviter ces inconvénients.The present invention aims to avoid these drawbacks.

Les tunnels immergés sont généralement constitués d'éléments successifs préfabriqués en béton et le problème se pose de réaliser chaque fois l'étanchéité entre deux éléments successifs Une solution connue consiste à fixer une feuille d'étanchéité à l'un des éléments, cette feuille présentant une partie dépassante contre laquelle s'appliquera l'élément suivant, l'application étant maintenue par collage ou par d'autres moyens. Cette solution présente les inconvénients d'être relativement onéreuse, délicate à mettre en oeuvre et de ne pas se prêter à un entretien.. facile après exécution de l'ouvrage.Submerged tunnels are generally made up of successive precast concrete elements and the problem arises of sealing each time between two successive elements. A known solution consists in fixing a sealing sheet to one of the elements, this sheet having an protruding part against which the next element will apply, the application being maintained by gluing or by other means. This solution has the drawbacks of being relatively expensive, difficult to implement and of not being suitable for maintenance. Easy after execution of the work.

La présente invention vise aussi à éviter ces inconvénients.The present invention also aims to avoid these drawbacks.

On y parvient, selon l'invention, en utilisant l'une des surfaces comme moule pour constituer l'autre surface et en utilisant comme matériau d'étanchéité un matériau polymérisable et expansif en présence d'eau.This is achieved, according to the invention, by using one of the surfaces as a mold to form the other surface and by using as sealant a polymerizable and expansive material in the presence of water.

Ces deux moyens sont connus mais la présente invention les combine pour la première fois.These two means are known, but the present invention combines them for the first time.

Il est connu en effet de préfabriquer chaque élément d'une suite d'éléments de structure en béton par la technique dite des "joints conjugués" qui consiste à utiliser un élément déjà fabriqué comme l'une des extrémités du moule ou du coffrage servant à la fabrication de l'élément voisin. On obtient ainsi des surfaces dites conjuguées qui, lorsqu'elles seront au contact (ouvrage final) présenteront un intervalle extrêmement faible, de l'ordre du dixième de mm alors que lorsque les éléments sont fabriqués indépendamment l'un de l'autre, cet intervalle est de l'ordre du millimètre.It is known in fact to prefabricate each element of a series of concrete structural elements by the technique known as "conjugate joints" which consists in using an element already manufactured as one of the ends of the mold or of the formwork serving to the manufacture of the neighboring element. So-called conjugate surfaces are thus obtained which, when they are in contact (final structure) will have an extremely small interval, of the order of a tenth of a mm whereas when the elements are produced independently of each other, this interval is of the order of a millimeter.

Il ne serait pas possible d'utiliser avec un intervalle aussi grand des matériaux polymérisables et expansifs en présence d'eau, ces matériaux ne convenant que pour boucher des fissures.It would not be possible to use with such a large interval polymerizable and expansive materials in the presence of water, these materials being suitable only for plugging cracks.

Dans le cas des voussoirs de pont et analogues, il est préconisé d'appliquer le matériau d'étanchéité sur les deux surfaces conjuguées avant de mettre les voussoirs en place mais à la différence du procédé classique, du fait que la polymérisation peut se faire à tout moment voulu puisque l'agent polymérisant est indépendant du matériau appliqué alors que dans le procédé classique le durcisseur est nécessairement mélangé avec la résine, on peut sans difficulté réaliser l'application du matériau d'étanchéité plusieurs jours avant de mettre les éléments de structure. en place et, pour obtenir l'étanchéité, il suffit au moment voulu de mettre de l'eau ou un liquide aqueux en contact avec les surfaces conjuguées, par exemple par arrosage et par exemple quelques heures avant la conjugaison des surfaces.In the case of bridge segments and the like, it is recommended to apply the sealing material to the two mating surfaces before putting the segments in place, but unlike the conventional method, since polymerization can be carried out at any time since the polymerizing agent is independent of the material applied whereas in the conventional process the hardener is necessarily mixed with the resin, it is possible without difficulty to apply the sealing material several days before putting the structural elements . in place and, to obtain sealing, it suffices at the appropriate time to put water or an aqueous liquid in contact with the surfaces conjugate, for example by watering and for example a few hours before the conjugation of surfaces.

Dans le cas du tunnel immergé et analogues, il est préconisé de munir les surfaces conjuguées de cavités en regard et de relier ces cavités à une face accessible de l'élément par un tube permettant, depuis l'extérieur, d'injecter le matériau d'étanchéité dans les cavités alors que les surfaces sont conjuguées.In the case of the submerged tunnel and the like, it is recommended to provide the conjugate surfaces with facing cavities and to connect these cavities to an accessible face of the element by a tube allowing, from the outside, to inject the material d sealing in the cavities while the surfaces are conjugated.

L'eau nécessaire à la polymérisation peut être mélangée au matériau avant injection ou après l'injection soit sous forme d'eau soit sous forme d'une solution aqueuse.The water necessary for the polymerization can be mixed with the material before injection or after injection either in the form of water or in the form of an aqueous solution.

On notera que, selon l'invention, il n'est pas nécessaire que le matériau d'étanchéité soit appliqué sur l'intégralité des surfaces alors qu'aussi bien dans le cas de la feuille d'étanchéité que de la résine durcissable des techniques antérieures, le matériau d'étanchéité est appliqué sur l'intégralité des surfaces.It will be noted that, according to the invention, it is not necessary for the sealing material to be applied to the entire surface, while both in the case of the sealing sheet and of the curable resin of the techniques. sealing materials are applied to the entire surface.

On décrira ci-après un exemple de réalisation en se limitant au cas d'un tunnel immergé.An exemplary embodiment will be described below, limiting itself to the case of a submerged tunnel.

La figure 1 représente une coupe dans la paroi tunnel à l'endroit de la jonction entre deux éléments voisins, l'étanchéité étant obtenue selon la technique classique, etFIG. 1 represents a section in the tunnel wall at the junction between two neighboring elements, the seal being obtained according to the conventional technique, and

La figure 2 représente une coupe correspondante dans le cas où l'étanchéité est obtenue selon la présente invention.2 shows a corresponding section in the case where the seal is obtained according to the present invention.

Sur la figure 1, les deux éléments de tunnel dont on a représenté seulement les extrémités A et B sont assemblés et l'assemblage est rendu étanche par une feuille de néoprène 1 qui était fixée à l'un des éléments avant l'assemblage. Eventuellement du béton 2 est coulé après assemblage contre la feuille de néoprène.In Figure 1, the two tunnel elements of which only the ends A and B have been shown are assembled and the assembly is sealed by a neoprene sheet 1 which was attached to one of the elements before assembly. Eventually concrete 2 is poured after assembly against the neoprene sheet.

Dans la technique illustrée par la figure 2, les surfaces en regard 3 et 4 des deux éléments sont des surfaces conjuguées en sorte que l'intervalle entre les deux surfaces est au plus de l'ordre du 10ème de mm alors que cet intervalle dans le cas classique (figure 1) peut atteindre plusieurs mm. Les surfaces conjuguées 3 et 4 ont été munies, de préférence par moulage, de cavités en regard 5,6 et un tube 7 aboutissant à une surface accessible de l'élément est prévu pour pouvoir injecter ultérieurement le matériau d'étanchéité dans les cavités 5 et 6. Le nombre des cavités et le nombre des tubes est choisi à volonté. Le matériau polymérisable et expansif en présence d'eau est l'un des matériaux connus, par exemple le DECI 162 F de la société ARPEC qui est à base de résine polyuréthane.In the technique illustrated in FIG. 2, the facing surfaces 3 and 4 of the two elements are conjugate surfaces so that the interval between the two surfaces is at most of the order of the 10th of mm while this interval in the classic case (Figure 1) can reach several mm. The mating surfaces 3 and 4 have been provided, preferably by molding, with facing cavities 5,6 and a tube 7 leading to an accessible surface of the element is provided to be able to subsequently inject the sealing material into the cavities 5 and 6. The number of cavities and the number of tubes is chosen at will. The polymerizable and expansive material in the presence of water is one of the known materials, for example DECI 162 F from the company ARPEC which is based on polyurethane resin.

Claims (5)

1. Procédé pour la réalisation d'une étanchéité entre des surfaces en regard de deux éléments de structure préfabriqués en béton, caractérisé en ce que l'on utilise l'une des surfaces (3) comme moule pour constituer l'autre surface (4) et en ce qu'on utilise comme matériau d'étanchéité un matériau polymérisable et expansif en présence d'eau. 1 . Method for producing a seal between facing surfaces of two prefabricated concrete structural elements, characterized in that one of the surfaces (3) is used as a mold to constitute the other surface (4) and in that a sealing material which is polymerizable and expansive in the presence of water is used. 2. Procédé selon la revendication 1, caractérisé en ce que l'on applique ledit matériau sur lesdites surfaces avant de mettre les éléments en place et en ce qu'on met ensuite lesdites surfaces en contact avec de l'eau ou un liquide aqueux.2. Method according to claim 1, characterized in that said material is applied to said surfaces before putting the elements in place and in that said surfaces are then brought into contact with water or an aqueous liquid. 3. Procédé selon la revendication 1, caractérisé en ce qu'on munit lesdites surfaces de cavités en regard (5,6) et en ce qu'on injecte ledit matériau dans lesdites cavités par un ou plusieurs tubes (7) reliant les cavités à une face accessible des éléments (A,B) après mise en place des éléments.3. Method according to claim 1, characterized in that said surfaces of cavities are provided opposite (5,6) and in that said material is injected into said cavities by one or more tubes (7) connecting the cavities to an accessible face of the elements (A, B) after placing the elements. 4. Application d'un procédé selon la revendication 1 ou 2 à des voussoirs de pont et analogues.4. Application of a method according to claim 1 or 2 to bridge segments and the like. 5. Application d'un procédé selon l'une des revendications 1 ou 3 à des éléments de tunnel immergé.5. Application of a method according to one of claims 1 or 3 to submerged tunnel elements.
EP84401094A 1983-05-31 1984-05-28 Process for sealing the opposing surfaces of prefabricated concrete elements, especially for bridges an tunnels Withdrawn EP0127547A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8309033 1983-05-31
FR8309033A FR2547011B1 (en) 1983-05-31 1983-05-31 PROCESS FOR REALIZING A SEAL BETWEEN SURFACES WITH REGARD TO TWO PREFABRICATED CONCRETE STRUCTURAL ELEMENTS, IN PARTICULAR FOR BRIDGES AND TUNNELS

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EP0127547A1 true EP0127547A1 (en) 1984-12-05

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EP84401094A Withdrawn EP0127547A1 (en) 1983-05-31 1984-05-28 Process for sealing the opposing surfaces of prefabricated concrete elements, especially for bridges an tunnels

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EP (1) EP0127547A1 (en)
JP (1) JPS605901A (en)
FR (1) FR2547011B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG119191A1 (en) * 2002-07-05 2006-02-28 Vsl Int Ag Method for preparation of reciprocal pressing surfaces of segments of a construction
CN103628682A (en) * 2013-12-09 2014-03-12 天津市建工工程总承包有限公司 Construction method of crack resistant structure of root of independent steel column for large-area concrete ground
CN105507156A (en) * 2015-12-13 2016-04-20 中铁十九局集团第二工程有限公司 Mounting method of T-beam bridge decking wet joint formwork

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674872A (en) * 1953-07-15 1954-04-13 Grund William Expansion joint
US2858695A (en) * 1957-06-28 1958-11-04 Loughborough Mark Sealing strip
FR1551808A (en) * 1967-01-27 1968-12-27
DE2043039A1 (en) * 1969-10-23 1971-05-06 Ytong AG, 8000 München Joint between components, along with a method for executing such a joint
US3705838A (en) * 1969-12-29 1972-12-12 Mineral Products Corp Water-proofing barrier
FR2328799A1 (en) * 1975-10-24 1977-05-20 Soletanche Water tight below ground wall construction - has precast blocks with concaved sides jointed with cement resin or bitumen to resist cracking under earth pressure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674872A (en) * 1953-07-15 1954-04-13 Grund William Expansion joint
US2858695A (en) * 1957-06-28 1958-11-04 Loughborough Mark Sealing strip
FR1551808A (en) * 1967-01-27 1968-12-27
DE2043039A1 (en) * 1969-10-23 1971-05-06 Ytong AG, 8000 München Joint between components, along with a method for executing such a joint
US3705838A (en) * 1969-12-29 1972-12-12 Mineral Products Corp Water-proofing barrier
FR2328799A1 (en) * 1975-10-24 1977-05-20 Soletanche Water tight below ground wall construction - has precast blocks with concaved sides jointed with cement resin or bitumen to resist cracking under earth pressure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG119191A1 (en) * 2002-07-05 2006-02-28 Vsl Int Ag Method for preparation of reciprocal pressing surfaces of segments of a construction
CN103628682A (en) * 2013-12-09 2014-03-12 天津市建工工程总承包有限公司 Construction method of crack resistant structure of root of independent steel column for large-area concrete ground
CN105507156A (en) * 2015-12-13 2016-04-20 中铁十九局集团第二工程有限公司 Mounting method of T-beam bridge decking wet joint formwork

Also Published As

Publication number Publication date
JPS605901A (en) 1985-01-12
FR2547011A1 (en) 1984-12-07
FR2547011B1 (en) 1985-08-30

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