EP1310596B1 - Ballastless railway construction method and tie plate for carrying out the method - Google Patents

Ballastless railway construction method and tie plate for carrying out the method Download PDF

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Publication number
EP1310596B1
EP1310596B1 EP02292641A EP02292641A EP1310596B1 EP 1310596 B1 EP1310596 B1 EP 1310596B1 EP 02292641 A EP02292641 A EP 02292641A EP 02292641 A EP02292641 A EP 02292641A EP 1310596 B1 EP1310596 B1 EP 1310596B1
Authority
EP
European Patent Office
Prior art keywords
tie
plates
temporary
plate
concrete slab
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
Application number
EP02292641A
Other languages
German (de)
French (fr)
Other versions
EP1310596A1 (en
Inventor
Nicolas Rada
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.)
Alstom Transport SA
Original Assignee
Alstom 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 Alstom SA filed Critical Alstom SA
Publication of EP1310596A1 publication Critical patent/EP1310596A1/en
Application granted granted Critical
Publication of EP1310596B1 publication Critical patent/EP1310596B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
    • E01B9/44—Fastening the rail on the tie-plate
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/005—Making of concrete parts of the track in situ
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/32—Installing or removing track components, not covered by the preceding groups, e.g. sole-plates, rail anchors
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
    • E01B9/40—Tie-plates for flat-bottom rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/06—Height or lateral adjustment means or positioning means for slabs, sleepers or rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/09—Ballastless systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]

Definitions

  • the invention relates to a method for the construction of a railway and in particular to a method of constructing a railway on a concrete slab in which the concrete slab is poured around anchoring elements allowing the fixing of saddles supporting the rails of the railway.
  • the invention also relates to a temporary saddle used in the method according to the invention.
  • an object of the present invention is to provide a method for the realization of a railway which ensures the formation without major defects of the support surfaces on which the saddles supporting the rails and which is simple and economical to achieve.
  • the subject of the invention is a method of constructing a railway track on a concrete slab in which the concrete slab is cast around anchoring elements allowing the attachment of saddles supporting the rails of the track. railway.
  • the rails are suspended by means of a gantry above the place where the concrete slab is to be poured, the rails having definitive saddles premounted on the rails, the temporary saddles being arranged under these final saddles then being brought into the desired position by means of the gantry.
  • the invention also relates to a temporary saddle intended for the implementation of the method of construction of a railway previously described, characterized in that it comprises a body whose lower face, intended to be licked by the concrete during the pouring of the concrete slab, is provided with vents.
  • the Figures 1 and 2 represent a temporary saddle 1 according to a particular embodiment of the invention.
  • the temporary saddle 1 comprises a body 11 formed by a rectangular metal plate having multiple vents 10 opening on the lower and upper faces of the metal plate 11.
  • These multiple vents 10 are formed by holes, some of which are shown more in detail on the figure 4 , have a slightly convergent circular section, the diameter of these holes 10 being for example 7 mm at the lower face of the plate 11 and 5 mm at the upper face.
  • the plate 11 also has two openings 12 disposed at diagonally opposite ends of the plate 11. These openings 12 receive guide bushes 13 having an outside diameter adjusted to the diameter of the opening 12 and an internal bore adapted to receive a controlled fit. a threaded rod 4 not shown on the Figures 1 and 2 .
  • the guide bushings 13 comprise in their lower part a shoulder which is inserted into a cavity adapted to the underside of the plate 11 when the bushes 13 are introduced into the openings 12 by the underside of the temporary seat 1.
  • Spreaders 14, consisting of cylindrical washers, are arranged on the upper face of the plate 11 around the guide bushes 13, these spacers 14 having an internal bore slightly larger than the outside diameter of the guide bushes 13.
  • the outer periphery of the plate 11 has a step 15 whose edge is beveled towards the underside of the plate 11, the upper edge of the step 15 located on the longitudinal side of the plate 11 being inclined relative to the plane from the underside of the plate 11.
  • the temporary seat 1 also has extraction handles 16 facilitating the gripping of the temporary seat 1.
  • a gantry 6 is used to bring two rails 2 above the location where a concrete slab 3 is to be cast. These two rails 2 are suspended by clamps 61 connected to a motorized beam 62, the latter sliding vertically on the gantry 6 to precisely bring the two rails 2 to the desired location.
  • the two rails 2 are connected to saddles 5 by fasteners 9, these saddles 5 conventionally comprising a base 51 constituted by a substantially solid metal plate intended to rest on the concrete slab 3 via a sole 20, shown on the figure 8 , of resilient material and advantageously electrically insulating.
  • a temporary seat 1 is placed under each of the saddles 5 so that the guide bushes 13 supported by the temporary seat 1 engage in fitted openings 52 of the base 51, the underside of the seat. base 51 coming to bear on the top of the spacers 14 supported by the temporary seat 1, a space then resulting between the lower face of the base 51 and the upper face of the plate 11 of the temporary seat 1.
  • the temporary seat 1 is held in this position under the saddle 5 by the anchoring elements of the saddle 5 on the concrete slab 3 constituted here by threaded rods 4 inserted into the guide bushes 13 and receiving in their upper part locking nuts 18 these threaded rods 4 having a local pinch 41 on which a washer 17 resting on the underside of the guide bushings 13.
  • the threaded rods 4 thus disposed a part projecting largely from the underside of the temporary stool 1 intended to be embedded in the concrete.
  • the underside of the temporary stool 1 Prior to the pouring of the concrete slab 3, the underside of the temporary stool 1 is coated with a formwork oil and the beam 62 of the gantry 6 is controlled so as to bring the underside of the temporary stool 1 to the place or should be placed the support surfaces of the saddle 5 for supporting the rails 2 of the track to be built.
  • the nuts 18 present on the threaded rods 4 are removed and the rails 2 pre-assembled on their saddles 5 are raised by means of the gantry 6.
  • the temporary saddles 1 accompanied by the bushes guide 13 and spacers 14 are then removed, the extraction of the temporary stool 1 being facilitated by the presence of the handles 16.
  • Electrically insulating spacers 19, shown on the figure 8 are then disposed inside the openings 52 of the saddle 5, these insulating spacers 19 having a body having a cylindrical portion, inserted into the openings 52, the inner and outer diameters are identical to the inner and outer diameters of the sleeves of guides 13, that is to say respectively adjusted to the diameter of the openings 52 and threaded rods 4.
  • These spacers 19 also have a flange in the upper part on which bears the tightening nuts 18, a spring, not shown on the figures, possibly being interposed between the nut and the flange of the spacer 19, the height of the spacer 19 being such that it does not protrude from the underside of the saddle 5 when it is inserted into the opening 52.
  • the rails 2 pre-assembled on their saddles 5 are then lowered again after having inserted the sole 20 of resilient material under the lower face of the base 51, this sole 20 having holes in line with the threaded rods 4.
  • An additional sole 21, simply electrically insulation, is advantageously disposed under the previous sole 20, the assembly being brought into contact with the concrete slab 3 by passing the threaded rods 4 projecting from the concrete slab 3 through the flanges 20, 21 and the bores of the spacers insulators 19 arranged in the openings 52 of the saddle 5 as shown in FIG. figure 8 . Due to the presence of the insulating spacers 19 with radial dimensions similar to those of the guide bushes 13 during this operation, the saddles 5 are then positioned automatically and precisely at their final location.
  • the saddles 5 are then immobilized in a conventional manner using nuts 18 screwed onto the threaded rods 4, the latter bearing on the upper face of the saddle 5 via the collar of the insulating spacer 19.
  • Such a construction method, using temporary saddles according to the invention makes it possible to obtain a homogeneous support surface for the saddles easily and quickly, which prevents any displacement of the saddles during the tightening of the nuts and ensures stable positioning. stool in time.
  • the casting of the concrete slab has the advantage of being carried out without risk of occurrence of air bubbles under the temporary stool because of the many vents that have temporary stool, the latter not being obstructed by the saddle plate thanks to the presence of the spreaders.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Railway Tracks (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Road Paving Structures (AREA)
  • Magnetic Heads (AREA)

Abstract

The method involves pouring a slab forming concrete up to the height of temporary tie plates (1). The temporary tie plates are removed after the slab forming concrete has dried to form a concrete slab. Main tie plates are placed to support rails in their final positions. The main tie plates are fixed to anchor rods. <??>An Independent claim is also included for a temporary tie plate.

Description

L'invention se rapporte à un procédé pour la construction d'une voie ferrée et en particulier à un procédé de construction d'une voie ferrée sur une dalle de béton dans lequel la dalle de béton est coulée autour d'éléments d'ancrage permettant la fixation de selles supportant les rails de la voie ferrée. L'invention concerne également une selle provisoire utilisée dans le procédé selon l'invention.The invention relates to a method for the construction of a railway and in particular to a method of constructing a railway on a concrete slab in which the concrete slab is poured around anchoring elements allowing the fixing of saddles supporting the rails of the railway. The invention also relates to a temporary saddle used in the method according to the invention.

Il est connu actuellement pour les métros ou les tramways de procéder à la pose d'une voie ferrée sur une dalle de béton en amenant des rails directement prémontés sur des selles à l'endroit où la voie doit être posée, les rails étant maintenus en suspension dans leur position finale au moyen d'un portique avec les selles fixées au rail par des attaches. Une dalle de béton est ensuite coulée sous les rails jusqu'à hauteur des selles, ces dernières supportant des éléments d'ancrage constitués de tiges filetées traversant les selles et présentant une partie inférieure se trouvant noyée dans la dalle de béton. Une fois la prise du béton réalisée, les selles sont immobilisées définitivement sur la dalle de béton en serrant des écrous sur les tiges filetées, ces écrous venant prendre appui sur la face supérieure des selles.It is currently known for metros or trams to proceed with the laying of a railway on a concrete slab by bringing rails directly pre-assembled on saddles where the track is to be laid, the rails being maintained in suspension in their final position by means of a portico with the saddles fixed to the rail by fasteners. A concrete slab is then cast under the rails to the height of the saddles, the latter supporting anchoring elements consisting of threaded rods passing through the saddle and having a lower portion being embedded in the concrete slab. Once the setting concrete realized, the stool is permanently immobilized on the concrete slab by tightening nuts on the threaded rods, these nuts coming to bear on the upper face of the stool.

Un tel procédé de construction d'une voie ferrée présente cependant l'inconvénient d'être sujet à des problèmes de formation de bulles d'air sous les selles lors de la coulée du béton, ce qui empêchent la formation d'une surface d'appui en béton bien plane sous les selles. Ainsi, lors du serrage des écrous sur les tiges filetées pour immobiliser les selles après la prise du béton, il est courant qu'un déplacement de la selle se produise du fait de la mauvaise réalisation de la surface d'appui. Il est alors nécessaire de démonter la selle et de reprendre manuellement la surface d'appui pour permettre un bon positionnement de la selle. Un tel travail de reprise des surfaces d'appui défectueuses est long et coûteux et ralenti considérablement la pose de la voie ferrée.However, such a method of constructing a railway has the disadvantage of being subject to problems of formation of air bubbles under the saddle during the pouring of the concrete, which prevents the formation of a surface of concrete support well flat under the saddles. Thus, when tightening the nuts on the threaded rods to immobilize the saddle after setting the concrete, it is common that a displacement of the saddle occurs due to the poor realization of the support surface. It is then necessary to remove the saddle and manually resume the support surface to allow proper positioning of the saddle. Such a work of recovery defective bearing surfaces is long and expensive and considerably slowed the laying of the railway.

Aussi, un but de la présente invention est de proposer un procédé pour la réalisation d'une voie ferrée qui assure la formation sans défauts majeurs des surfaces d'appui sur lesquelles reposent les selles supportant les rails et qui soit simple et économique à réaliser.Also, an object of the present invention is to provide a method for the realization of a railway which ensures the formation without major defects of the support surfaces on which the saddles supporting the rails and which is simple and economical to achieve.

A cet effet, l'invention a pour objet un procédé de construction d'une voie ferrée sur une dalle de béton dans lequel la dalle de béton est coulée autour d'éléments d'ancrage permettant la fixation de selles supportant les rails de la voie ferrée.To this end, the subject of the invention is a method of constructing a railway track on a concrete slab in which the concrete slab is cast around anchoring elements allowing the attachment of saddles supporting the rails of the track. railway.

Selon l'invention, le procédé est caractérisé en ce qu'il comporte les étapes suivantes :

  • maintien en suspension de selles provisoires à l'endroit où devront être placées les selles définitives supportant la voie ferrée, lesdites selles provisoire supportant des éléments d'ancrage destinés à être partiellement noyés dans le béton et comportant des évents permettant l'évacuation de l'air prisonnier sous la face inférieure de la selle provisoire lors du coulage de la dalle de béton,
  • coulage d'une dalle de béton jusqu'à hauteur des selles provisoires,
  • extraction des selles provisoires après la prise du béton de la dalle,
  • mise en place précise des selles définitives supportant les rails dans leur position finale et fixation des selles sur les éléments d'ancrage.
According to the invention, the method is characterized in that it comprises the following steps:
  • suspending temporary stools at the place where the final saddles supporting the railway will be placed, said temporary saddles supporting anchoring elements intended to be partly embedded in the concrete and comprising vents allowing the evacuation of the stool; air prisoner under the underside of the temporary saddle during the pouring of the concrete slab,
  • pouring a concrete slab up to the height of the temporary stool,
  • extraction of temporary stools after the setting of the concrete slab,
  • precise placement of the definitive saddles supporting the rails in their final position and fixation of the saddles on the anchoring elements.

Selon une autre caractéristique de l'invention, les rails sont suspendus au moyen d'un portique au-dessus de l'endroit où la dalle de béton doit être coulée, les rails comportant des selles définitives prémontées sur les rails, les selles provisoires étant disposées sous ces selles définitives puis étant amenées dans la position désirée au moyen du portique.According to another characteristic of the invention, the rails are suspended by means of a gantry above the place where the concrete slab is to be poured, the rails having definitive saddles premounted on the rails, the temporary saddles being arranged under these final saddles then being brought into the desired position by means of the gantry.

Selon encore une autre caractéristique de l'invention, après l'étape d'extraction des selles provisoires et avant l'étape de mise en place des selles définitives, on élimine par raclage les éventuels picots formés à la surface de la dalle de béton par la remonté de béton au travers des évents.According to yet another characteristic of the invention, after the step of extracting the temporary stool and before the step of placing the final stool, is removed by scraping any pits formed on the surface of the concrete slab by the rise of concrete through the vents.

L'invention concerne également une selle provisoire destinée à la mise en oeuvre du procédé de construction d'une voie ferrée précédemment décrit, caractérisé en ce qu'elle comporte un corps dont la face inférieure, destinée à être léchée par le béton lors de la coulée de la dalle de béton, est munie d'évents.The invention also relates to a temporary saddle intended for the implementation of the method of construction of a railway previously described, characterized in that it comprises a body whose lower face, intended to be licked by the concrete during the pouring of the concrete slab, is provided with vents.

Selon des modes particuliers de réalisation, la selle provisoire selon l'invention peut comprendre l'une ou plusieurs des caractéristiques suivantes prises isolément ou selon toutes les combinaisons techniquement possibles :

  • le corps de la selle provisoire est constituée d'une plaque comportant de multiples trous débouchant ;
  • la périphérie de la plaque comporte une marche présentant une arête supérieure qui est inclinée par rapport au plan de la face inférieure de la plaque pour servir de référence lors de la réalisation de la surface de béton de la dalle de voie lorsque celle-ci doit comporter une forme de pente pour en assurer le drainage ;
  • le corps de la selle provisoire comporte des ouvertures de diamètre plus important que le diamètre des évents pour permettre le passage des éléments d'ancrage;
According to particular embodiments, the temporary saddle according to the invention may comprise one or more of the following characteristics taken separately or in any technically possible combination:
  • the body of the temporary saddle consists of a plate having multiple holes opening;
  • the periphery of the plate comprises a step having an upper edge which is inclined relative to the plane of the lower face of the plate to serve as a reference when producing the concrete surface of the channel tile when it must comprise a slope form to ensure drainage;
  • the body of the temporary seat has openings of greater diameter than the diameter of the vents to allow the passage of the anchoring elements;

On comprendra mieux les buts, aspects et avantages de la présente invention, d'après la description donnée ci-après d'un mode particulier de réalisation de l'invention, présenté à titre d'exemple non limitatif, en se référant aux dessins annexés, dans lesquels :

  • la figure 1 est une vue de dessus, d'une selle provisoire selon un mode particulier de réalisation de l'invention ;
  • la figure 2 est une vue de côté de la selle provisoire de la figure 1 ;
  • la figure 3 est une vue de détail représentant une coupe de la selle provisoire selon la ligne III-III de la figure 1 ;
  • la figure 4 est une vue de détail représentant une coupe de la selle provisoire selon la ligne IV-IV de la figure 1 ;
  • la figure 5 est une vue d'ensemble d'un dispositif pour la mise en oeuvre du procédé de construction selon l'invention ;
  • la figure 6 est une vue agrandie d'un des rails représentés à la figure 5, ce dernier étant équipé d'une selle provisoire conformément à un mode particulier de réalisation du procédé de construction selon l'invention ;
  • la figure 7 est une vue de détail, selon une coupe similaire à celle de la figure 3, des moyens d'assemblage de la selle provisoire sur la selle définitive destinée à supporter le rail ;
  • la figure 8 est une vue de coté, avec une coupe partielle, de la selle définitive après son montage sur la dalle de béton.
The aims, aspects and advantages of the present invention will be better understood from the following description of a particular embodiment of the invention, presented by way of nonlimiting example, with reference to the appended drawings. , wherein :
  • the figure 1 is a top view of a temporary saddle according to a particular embodiment of the invention;
  • the figure 2 is a side view of the temporary saddle of the figure 1 ;
  • the figure 3 is a detail view showing a section of the provisional saddle along line III-III of the figure 1 ;
  • the figure 4 is a detail view showing a section of the provisional saddle along line IV-IV of the figure 1 ;
  • the figure 5 is an overview of a device for carrying out the construction method according to the invention;
  • the figure 6 is an enlarged view of one of the rails represented in the figure 5 , the latter being equipped with a temporary saddle according to a particular embodiment of the construction method according to the invention;
  • the figure 7 is a detail view, in a section similar to that of the figure 3 , means for assembling the temporary saddle on the final saddle intended to support the rail;
  • the figure 8 is a side view, with a partial section, of the final saddle after its mounting on the concrete slab.

Pour faciliter la lecture du dessin, seuls les éléments nécessaires à la compréhension de l'invention ont été représentés. Les mêmes éléments portent les mêmes références d'une figure à l'autre.To facilitate the reading of the drawing, only the elements necessary for the understanding of the invention have been represented. The same elements bear the same references from one figure to another.

Les figures 1 et 2 représentent une selle provisoire 1 selon un mode particulier de réalisation de l'invention. Conformément à ces figures, la selle provisoire 1 comporte un corps 11 formé par une plaque métallique rectangulaire présentant de multiples évents 10 débouchant sur les faces inférieure et supérieure de la plaque métallique 11. Ces multiples évents 10 sont formés par des trous dont certains, représentés plus en détails sur la figure 4, présentent une section circulaire légèrement convergente, le diamètre de ces trous 10 étant par exemple de 7 mm au niveau de la face inférieure de la plaque 11 et de 5 mm au niveau de la face supérieure.The Figures 1 and 2 represent a temporary saddle 1 according to a particular embodiment of the invention. According to these figures, the temporary saddle 1 comprises a body 11 formed by a rectangular metal plate having multiple vents 10 opening on the lower and upper faces of the metal plate 11. These multiple vents 10 are formed by holes, some of which are shown more in detail on the figure 4 , have a slightly convergent circular section, the diameter of these holes 10 being for example 7 mm at the lower face of the plate 11 and 5 mm at the upper face.

La plaque 11 comporte également deux ouvertures 12 disposées à des extrémités diagonalement opposées de la plaque 11. Ces ouvertures 12 reçoivent des douilles de guidage 13 présentant un diamètre extérieur ajusté au diamètre de l'ouverture 12 et un alésage intérieur adapté pour recevoir de manière ajusté une tige filetée 4 non représentée sur les figures 1 et 2.The plate 11 also has two openings 12 disposed at diagonally opposite ends of the plate 11. These openings 12 receive guide bushes 13 having an outside diameter adjusted to the diameter of the opening 12 and an internal bore adapted to receive a controlled fit. a threaded rod 4 not shown on the Figures 1 and 2 .

Conformément à la figure 3, les douilles de guidage 13 comportent dans leur partie inférieure un épaulement qui vient s'insérer dans une cavité adaptée de la face inférieure de la plaque 11 lorsque les douilles 13 sont introduites dans les ouvertures 12 par la face inférieure de la selle provisoire 1.In accordance with the figure 3 , the guide bushings 13 comprise in their lower part a shoulder which is inserted into a cavity adapted to the underside of the plate 11 when the bushes 13 are introduced into the openings 12 by the underside of the temporary seat 1.

Des écarteurs 14, constitués de rondelles cylindriques, sont disposés sur la face supérieure de la plaque 11 autour des douilles de guidage 13, ces écarteurs 14 comportant un alésage intérieur légèrement supérieur au diamètre extérieur des douilles de guidage 13.Spreaders 14, consisting of cylindrical washers, are arranged on the upper face of the plate 11 around the guide bushes 13, these spacers 14 having an internal bore slightly larger than the outside diameter of the guide bushes 13.

La périphérie extérieure de la plaque 11 présente une marche 15 dont le bord est biseauté en direction de la face inférieure de la plaque 11, l'arête supérieure de la marche 15 située sur le côté longitudinal de la plaque 11 étant inclinée par rapport au plan de la face inférieure de la plaque 11.The outer periphery of the plate 11 has a step 15 whose edge is beveled towards the underside of the plate 11, the upper edge of the step 15 located on the longitudinal side of the plate 11 being inclined relative to the plane from the underside of the plate 11.

La selle provisoire 1 comporte également des poignées d'extraction 16 facilitant la préhension de la selle provisoire 1.The temporary seat 1 also has extraction handles 16 facilitating the gripping of the temporary seat 1.

L'utilisation de la selle provisoire 1 précédemment décrite et le procédé de construction selon l'invention vont maintenant être décrits en se référant aux figures 5 à 7.The use of the temporary seat 1 described above and the method of construction according to the invention will now be described with reference to the Figures 5 to 7 .

Conformément à la figure 5, un portique 6 est utilisé pour amener deux rails 2 au-dessus de l'emplacement où une dalle de béton 3 doit être coulée. Ces deux rails 2 sont suspendus par des pinces 61 reliées à une poutre motorisée 62, cette dernière coulissant verticalement sur le portique 6 pour amener précisément les deux rails 2 à l'emplacement désiré. Comme on peut le voir plus en détail sur les figures 6, 7 et 8, les deux rails 2 sont reliés à des selles 5 par des attaches 9, ces selles 5 comportant de manière classique une embase 51 constituée par une plaque métallique sensiblement pleine destinée à s'appuyer sur la dalle de béton 3 par l'intermédiaire d'une semelle 20, représentée sur la figure 8, en matériau résilient et avantageusement électriquement isolant.In accordance with the figure 5 , a gantry 6 is used to bring two rails 2 above the location where a concrete slab 3 is to be cast. These two rails 2 are suspended by clamps 61 connected to a motorized beam 62, the latter sliding vertically on the gantry 6 to precisely bring the two rails 2 to the desired location. As can be seen in more detail on Figures 6, 7 and 8 , the two rails 2 are connected to saddles 5 by fasteners 9, these saddles 5 conventionally comprising a base 51 constituted by a substantially solid metal plate intended to rest on the concrete slab 3 via a sole 20, shown on the figure 8 , of resilient material and advantageously electrically insulating.

Une selle provisoire 1 conforme à celle décrite précédemment est disposée sous chacune des selles 5 de telle sorte que les douilles de guidage 13 supportées par la selle provisoire 1 s'engagent dans des ouvertures ajustées 52 de l'embase 51, la face inférieure de l'embase 51 venant prendre appui sur le sommet des écarteurs 14 supportés par la selle provisoire 1, un espace résultant alors entre la face inférieure de l'embase 51 et la face supérieure de la plaque 11 de la selle provisoire 1. La selle provisoire 1 est maintenue dans cette position sous la selle 5 par les éléments d'ancrage de la selle 5 sur la dalle de béton 3 constitués ici par des tiges filetées 4 insérées dans les douilles de guidage 13 et recevant dans leur partie supérieure des écrous 18 de blocage, ces tiges filetées 4 comportant un pincement local 41 sur lequel repose une rondelle 17 prenant appui sur la face inférieure des douilles de guidage 13. Les tiges filetées 4 ainsi disposées comportent une partie débordant largement de la face inférieure des selles provisoires 1 destinée à être noyée dans le béton.A temporary seat 1 according to that described above is placed under each of the saddles 5 so that the guide bushes 13 supported by the temporary seat 1 engage in fitted openings 52 of the base 51, the underside of the seat. base 51 coming to bear on the top of the spacers 14 supported by the temporary seat 1, a space then resulting between the lower face of the base 51 and the upper face of the plate 11 of the temporary seat 1. The temporary seat 1 is held in this position under the saddle 5 by the anchoring elements of the saddle 5 on the concrete slab 3 constituted here by threaded rods 4 inserted into the guide bushes 13 and receiving in their upper part locking nuts 18 these threaded rods 4 having a local pinch 41 on which a washer 17 resting on the underside of the guide bushings 13. The threaded rods 4 thus disposed a part projecting largely from the underside of the temporary stool 1 intended to be embedded in the concrete.

Préalablement à la coulée de la dalle de béton 3, la face inférieure des selles provisoires 1 est enduite d'une huile de décoffrage et la poutre 62 du portique 6 est pilotée de manière à amener la face inférieure des selles provisoires 1 à l'endroit où devront être placées les surfaces d'appui des selles 5 destinées à supporter les rails 2 de la voie à construire.Prior to the pouring of the concrete slab 3, the underside of the temporary stool 1 is coated with a formwork oil and the beam 62 of the gantry 6 is controlled so as to bring the underside of the temporary stool 1 to the place or should be placed the support surfaces of the saddle 5 for supporting the rails 2 of the track to be built.

Une dalle de béton 3, représentée en trait mixte sur la figure 5, est ensuite coulée par gravité jusqu'à hauteur des selles provisoires 1 en venant noyer la partie des tiges filetées 4 débordant sous la plaque 11. Une fois cette opération effectuée, la surface supérieure du béton 3 est lissée de telle sorte que la surface du béton 3 suive la pente de la marche 15 en bordure de la selle provisoire 1, cette dernière indiquant l'inclinaison que doit posséder la dalle de béton 3 par rapport à l'horizontal pour assurer une évacuation correcte des eaux de ruissellement.A concrete slab 3, represented in dashed line on the figure 5 , is then gravity-cast up to the height of the temporary stool 1 by drowning the part of the threaded rods 4 projecting under the plate 11. Once this operation is performed, the upper surface of the concrete 3 is smoothed so that the surface of the concrete 3 follows the slope of the step 15 at the edge of the temporary seat 1, the latter indicating the inclination that must have the concrete slab 3 relative to the horizontal to ensure proper drainage of runoff.

Après un temps de séchage permettant la prise de la dalle de béton 3, les écrous 18 présents sur les tiges filetés 4 sont retirés et les rails 2 prémontés sur leurs selles 5 sont soulevés au moyen du portique 6. Les selles provisoires 1 accompagnées des douilles de guidage 13 et des écarteurs 14 sont alors retirés, l'extraction des selles provisoires 1 étant facilitée par la présence des poignées 16 .After a drying time allowing the setting of the concrete slab 3, the nuts 18 present on the threaded rods 4 are removed and the rails 2 pre-assembled on their saddles 5 are raised by means of the gantry 6. The temporary saddles 1 accompanied by the bushes guide 13 and spacers 14 are then removed, the extraction of the temporary stool 1 being facilitated by the presence of the handles 16.

Les éventuels picots de béton formés à la surface de la dalle de béton 3 par la remontée de béton au travers des évents 10 des selles provisoires 1 sont alors facilement éliminés par simple raclage de la surface, suivi d'un soufflage.Any concrete pins formed on the surface of the concrete slab 3 by the concrete rise through the temporary stool vents 1 are then easily removed by simply scraping the surface, followed by blowing.

Des entretoises électriquement isolantes 19, représentées sur la figure 8, sont alors disposées à l'intérieur des ouvertures 52 des selles 5, ces entretoises isolantes 19 comportant un corps présentant une partie cylindrique, s'insérant dans les ouvertures 52, dont les diamètres intérieur et extérieur sont identiques aux diamètres intérieur et extérieur des douilles de guidages 13, c'est à dire respectivement ajustés au diamètre des ouvertures 52 et des tiges filetées 4. Ces entretoises 19 possèdent également une collerette en partie supérieure sur laquelle vient s'appuyer les écrous de serrage 18, un ressort, non représenté sur les figures, pouvant éventuellement être interposé entre l'écrou et la collerette de l'entretoise 19, la hauteur de l'entretoise 19 étant telle qu'elle ne déborde pas de la face inférieure de la selle 5 lorsqu'elle est insérée dans l'ouverture 52.Electrically insulating spacers 19, shown on the figure 8 are then disposed inside the openings 52 of the saddle 5, these insulating spacers 19 having a body having a cylindrical portion, inserted into the openings 52, the inner and outer diameters are identical to the inner and outer diameters of the sleeves of guides 13, that is to say respectively adjusted to the diameter of the openings 52 and threaded rods 4. These spacers 19 also have a flange in the upper part on which bears the tightening nuts 18, a spring, not shown on the figures, possibly being interposed between the nut and the flange of the spacer 19, the height of the spacer 19 being such that it does not protrude from the underside of the saddle 5 when it is inserted into the opening 52.

Les rails 2 prémontés sur leurs selles 5 sont ensuite redescendus après avoir inséré la semelle 20 en matériau résilient sous la face inférieure de l'embase 51, cette semelle 20 possédant des trous au droit des tiges filetées 4. Une semelle supplémentaire 21, simplement électriquement isolante, est avantageusement disposée sous la précédente semelle 20, l'ensemble étant amené au contact de la dalle de béton 3 en faisant passer les tiges filetées 4 débordant de la dalle de béton 3 au travers des semelles 20,21 et des alésages des entretoises isolantes 19 disposées dans les ouvertures 52 des selles 5 ainsi que cela est représenté à la figure 8. Du fait de la présence des entretoises isolantes 19 aux dimensions radiales similaires à celles des douilles de guidage 13 lors de cette opération, les selles 5 sont alors positionnées automatiquement et précisément à leur emplacement définitif.The rails 2 pre-assembled on their saddles 5 are then lowered again after having inserted the sole 20 of resilient material under the lower face of the base 51, this sole 20 having holes in line with the threaded rods 4. An additional sole 21, simply electrically insulation, is advantageously disposed under the previous sole 20, the assembly being brought into contact with the concrete slab 3 by passing the threaded rods 4 projecting from the concrete slab 3 through the flanges 20, 21 and the bores of the spacers insulators 19 arranged in the openings 52 of the saddle 5 as shown in FIG. figure 8 . Due to the presence of the insulating spacers 19 with radial dimensions similar to those of the guide bushes 13 during this operation, the saddles 5 are then positioned automatically and precisely at their final location.

Les selles 5 sont ensuite immobilisées de manière classique à l'aide d'écrous 18 vissés sur les tiges filetées 4, ces derniers prenant appui sur la face supérieure de la selle 5 par l'intermédiaire de la collerette de l'entretoise isolante 19.The saddles 5 are then immobilized in a conventional manner using nuts 18 screwed onto the threaded rods 4, the latter bearing on the upper face of the saddle 5 via the collar of the insulating spacer 19.

Un tel procédé de construction, utilisant des selles provisoires conformes à l'invention, permet d'obtenir facilement et rapidement une surface d'appui homogène pour les selles, ce qui évite tout déplacement des selles lors du serrage des écrous et assure un positionnement stable des selles dans le temps. En effet, la coulée de la dalle de béton présente l'avantage de s'effectuer sans risque d'apparition de bulles d'airs sous les selles provisoires du fait des nombreux évents que possèdent les selles provisoires, ces derniers n'étant pas obstrués par la plaque de la selle grâce à la présence des écarteurs.Such a construction method, using temporary saddles according to the invention, makes it possible to obtain a homogeneous support surface for the saddles easily and quickly, which prevents any displacement of the saddles during the tightening of the nuts and ensures stable positioning. stool in time. Indeed, the casting of the concrete slab has the advantage of being carried out without risk of occurrence of air bubbles under the temporary stool because of the many vents that have temporary stool, the latter not being obstructed by the saddle plate thanks to the presence of the spreaders.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments.Of course, the invention is not limited to the embodiment described and illustrated which has been given by way of example. Modifications are possible, especially from the point of view of the constitution of the various elements.

Claims (6)

  1. A method of construction of a railway on a concrete slab (3) in which said concrete slab (3) is poured around anchorage members (4) permitting the fixing of tie plates (5) supporting the rails (2) of the railway, characterized in that it comprises the following steps:
    - suspending temporary tie-plates (1) at the point where the tie-plates (5) supporting the railway are to be placed, said temporary tie-plates (1) supporting anchorage members (4) intended to be partially embedded in the concrete (3) and including vents (10) permitting the evacuation of the air trapped beneath the lower face of the temporary tie-plate (1) during the pouring of the concrete slab (3),
    - pouring a concrete slab (3) up to the height of the temporary tie-plates (1),
    - withdrawing the temporary tie-plates (1) after drying of the concrete slab (3),
    - accurate installation of the tie-plates (5) supporting the rails (2) in their final position and fixing the tie-plates (5) on the anchorage members (4).
  2. A method of construction of a railway according to claim 1, characterized in that said rails (2) are suspended by means of a gantry (6) above the point where the concrete slab (3) is to be poured, said rails (2) including tie-plates (5) pre-mounted on the rails (2), and in that said temporary tie-plates (1) are arranged beneath said tie-plates (5) and are then brought into the desired position by means of the gantry (6).
  3. A method of construction of a railway according to either claim 1 or claim 2, characterized in that, after the step of withdrawal of the temporary tie-plates (1) and before the step of installing the tie-plates (5), any points formed on the surface of the concrete slab (3) by the rising up of concrete through the vents (10) are eliminated by scraping.
  4. A temporary tie-plate (1) for the implementation of the method of construction of a railway according to any one of claims 1 to 3, including a body (11) the lower face of which is intended to be lapped by the concrete during the pouring of the concrete slab (3), characterized in that said body is constituted by a plate (11) including a multiplicity of through holes (10) and in that said plate (11) includes withdrawal handles (16).
  5. A temporary tie-plate according to claim 4, characterized in that the periphery of the plate (11) includes a step (15) having an upper edge which is inclined with respect to the plane of the lower face of the plate (11).
  6. A temporary tie-plate according to either claim 4 or claim 5, characterized in that said plate (11) includes apertures (12) having a diameter greater than the diameter of the vents (10) to permit the passage of anchorage means (4).
EP02292641A 2001-11-07 2002-10-24 Ballastless railway construction method and tie plate for carrying out the method Expired - Lifetime EP1310596B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0114401 2001-11-07
FR0114401A FR2831898B1 (en) 2001-11-07 2001-11-07 PROCESS FOR CONSTRUCTING A RAILWAY ON A CONCRETE SLAB AND PROVISIONAL SADDLE FOR THE IMPLEMENTATION OF THIS PROCESS

Publications (2)

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EP1310596A1 EP1310596A1 (en) 2003-05-14
EP1310596B1 true EP1310596B1 (en) 2008-02-20

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EP02292641A Expired - Lifetime EP1310596B1 (en) 2001-11-07 2002-10-24 Ballastless railway construction method and tie plate for carrying out the method

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US (1) US6732418B2 (en)
EP (1) EP1310596B1 (en)
JP (1) JP4102161B2 (en)
KR (1) KR100918359B1 (en)
AT (1) ATE386842T1 (en)
BR (1) BR0204608B1 (en)
CA (1) CA2410924C (en)
DE (1) DE60225104T2 (en)
DK (1) DK1310596T3 (en)
ES (1) ES2301613T3 (en)
FR (1) FR2831898B1 (en)
HK (1) HK1057771A1 (en)
MX (1) MXPA02010917A (en)
PT (1) PT1310596E (en)
TW (1) TWI274094B (en)

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FR2831897B1 (en) * 2001-11-07 2004-05-28 Alstom PROCESS FOR CONSTRUCTING A RAILWAY ON A CONCRETE SLAB AND PROVISIONAL SADDLE FOR THE IMPLEMENTATION OF THIS PROCESS
FR2833023B1 (en) * 2001-12-05 2004-05-21 Alstom METHOD OF CONSTRUCTING A RAIL TRACK IN WHICH A CONCRETE TRACK SLAB IS MADE AND INSERTION ELEMENTS OF THE RAIL TRACK ARE INSERTED IN THE TRACK SLAB
GR1004786B (en) * 2003-11-24 2005-01-25 Γεωργιος Ντινοπουλος Slab track construction without the use of sub-frame parts-building with concrete following adjustment
CA2564931C (en) * 2004-04-29 2011-05-17 Deutsche Gleis- Und Tiefbau Gmbh Device for adjusting a track structure and switches
GB0423237D0 (en) * 2004-10-19 2004-11-24 Pandrol Ltd Railway track construction shims and method of constructing railway track
US7766628B2 (en) * 2006-04-13 2010-08-03 Scroll Technologies Sealed compressor with structure on lower housing shell to assist weld placement
KR100968219B1 (en) * 2008-09-24 2010-07-06 유봉수 Sleeper
HK1134632A2 (en) * 2008-10-28 2010-04-30 Italian Thai Dev Public Co Precast track plinth
CN103510435A (en) * 2012-06-19 2014-01-15 中铁十九局集团第一工程有限公司 Concrete pouring device for ballastless track base board
WO2016146699A1 (en) 2015-03-16 2016-09-22 Top-Off Nv Casing for concrete bedding of railway and method for the construction of a railway
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FR2831898A1 (en) 2003-05-09
JP4102161B2 (en) 2008-06-18
DK1310596T3 (en) 2008-06-02
JP2003184009A (en) 2003-07-03
US6732418B2 (en) 2004-05-11
TWI274094B (en) 2007-02-21
PT1310596E (en) 2008-07-10
CA2410924A1 (en) 2003-05-07
KR100918359B1 (en) 2009-09-22
DE60225104D1 (en) 2008-04-03
US20030084558A1 (en) 2003-05-08
BR0204608B1 (en) 2012-11-27
ES2301613T3 (en) 2008-07-01
MXPA02010917A (en) 2004-07-16
ATE386842T1 (en) 2008-03-15
HK1057771A1 (en) 2004-04-16
CA2410924C (en) 2010-02-09
EP1310596A1 (en) 2003-05-14
FR2831898B1 (en) 2004-10-01
TW200300194A (en) 2003-05-16
BR0204608A (en) 2003-09-16
KR20030038406A (en) 2003-05-16
DE60225104T2 (en) 2009-02-12

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