EP1310594A1 - Method of building a railway on a concrete slab and temporary tie plate for carrying out said method - Google Patents

Method of building a railway on a concrete slab and temporary tie plate for carrying out said method Download PDF

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Publication number
EP1310594A1
EP1310594A1 EP02292596A EP02292596A EP1310594A1 EP 1310594 A1 EP1310594 A1 EP 1310594A1 EP 02292596 A EP02292596 A EP 02292596A EP 02292596 A EP02292596 A EP 02292596A EP 1310594 A1 EP1310594 A1 EP 1310594A1
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EP
European Patent Office
Prior art keywords
temporary
saddle
concrete slab
rails
saddles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02292596A
Other languages
German (de)
French (fr)
Other versions
EP1310594B1 (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 SA
Original Assignee
Alstom SA
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Filing date
Publication date
Application filed by Alstom SA filed Critical Alstom SA
Publication of EP1310594A1 publication Critical patent/EP1310594A1/en
Application granted granted Critical
Publication of EP1310594B1 publication Critical patent/EP1310594B1/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
    • 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
    • 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
    • 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
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • 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 line and particular to a method of constructing a railway on a concrete slab which the concrete slab is poured around anchoring elements allowing fixation of saddles supporting the tracks 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 carrying out a railway that allows precise positioning, with good perpendicularity, anchoring elements in relation to the saddle during casting of the concrete and which provides anchoring elements that are independent of the stool when tightening the nuts after setting the concrete.
  • the subject of the invention is a method of constructing a railway on a concrete slab in which the concrete slab is poured around elements anchoring device for fixing saddles supporting the tracks of the railway.
  • the temporary saddles comprise guide bushes engaging in apertures adapted from the seat base definitively, the guide bushes having an adjusted bore receiving an element an anchor consisting of a threaded rod, a portion of which protrudes from the underside of the temporary saddle.
  • the rails are suspended above of the concrete slab to be poured by means of a gantry, the latter permitting to precisely bring the rails to a desired position.
  • the invention also relates to a temporary saddle intended to be arranged under a definitive saddle supporting a railroad track when constructing a track rail on a concrete slab by the previously described construction method, characterized in that it comprises guide bushes inserted into adapted openings of the final saddle, the guide bushes comprising a fitted bore receiving an anchor element of the final saddle consisting of a rod part of which overflows from the underside of the temporary seat to be drowned in the concrete slab.
  • Figures 1 and 2 show a temporary saddle 1 according to a particular embodiment of embodiment of the invention.
  • the temporary seat 1 comprises a body 11 formed by a rectangular metal plate having multiple vents 10 opening on the lower and upper faces of the plate metallic 11.
  • the plate 11 also comprises two openings 12 arranged at ends diagonally opposite of the plate 11. These openings 12 receive bushings of 13 having an outside diameter adjusted to the diameter of the opening 12 and an inner bore adapted to fitly receive a threaded rod 4 no shown in Figures 1 and 2.
  • the guide bushes 13 comprise in their part lower a shoulder 20 which is inserted into a cavity adapted to the face lower the plate 11 when the sleeves are introduced into the openings 12 by the underside of the temporary saddle 1.
  • Spacers 14 consisting of cylindrical washers, are arranged on the face upper plate 11 around the guide bushes 13, these spacers 14 having an internal bore slightly greater than the outer diameter of the guide sleeves 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 of the underside of the plate 11.
  • the temporary seat 1 also has extraction handles 16 facilitating the grasping the temporary saddle 1.
  • a gantry 6 is used to bring two rails 2 above the location where a concrete slab 3 is to be poured. 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 comprising conventional manner a base 51 consisting of a metal plate substantially full intended to rely on the concrete slab 3 via a sole 20, shown in FIG. 7, made of resilient material and advantageously electrically insulating.
  • a temporary saddle 1 conforming to that described above is arranged under each of the saddles 5 so that the guide bushes 13 supported by the temporary saddle 1 engage in fitted openings 52 of the base 51, the face bottom of the base 51 coming to bear on the top of the spacers 14 supported by the temporary saddle 1, a resulting space then between the lower face of the base 51 and the upper face of the plate 11 of the temporary seat 1.
  • the seat provisional 1 is kept in this position under saddle 5 by the elements anchoring the saddle 5 on the concrete slab 3 threaded rods 4 inserted in the guide bushes 13 receiving in their upper part locking nuts 18, these threaded rods 4 having a diameter slightly less than the diameter of the bore of the guide sleeve 13 and having a local pinch 41 on which rests a washer 17 bearing on the underside of the guide bushes 13.
  • the threaded rods 4 disposed in this way comprise a portion that extends well beyond the underside of the temporary stool 1 intended to be embedded in the concrete.
  • the underside of the stool 1 Prior to the pouring of the concrete slab 3, the underside of the stool 1 is coated with formwork oil and beam 62 of gantry 6 is driven so as to bring the underside of the temporary stool 1 to the place where must be placed the support surfaces of the saddles 5 intended to support the rails 2 of the way to build.
  • a concrete slab 3, shown in phantom in FIG. 4, is then cast by gravity up to the height of temporary stool 1 by drowning the part of the stems threaded 4 overflowing under the plate 11. Once this is done, the surface top of concrete 3 is smoothed so that the concrete surface follows the slope walk 15 at the edge of the temporary saddle 1, the latter indicating the slope that the concrete slab 3 must have relative to the horizontal to ensure proper drainage of runoff.
  • Electrically insulating spacers 19, shown in FIG. 7, are then disposed within the openings 52 of the saddle 5, these insulating spacers 19 having a body having a cylindrical portion, fitting into the openings 52, whose inner and outer diameters are identical to the inner diameters and outside of the guide bushings 13, that is to say respectively adjusted to the diameter openings 52 and threaded rods 4.
  • These spacers 19 also have a flange on the upper part on which the tightening nuts spring, not shown in 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 overflow from the underside of the saddle 5 when inserted into the openings 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.
  • An additional sole 21, simply electrically insulating, is advantageously arranged under the previous sole 20, the assembly being brought into contact with the concrete slab 3 while passing the threaded rods 4 projecting from the concrete slab 3 through the soles 20, 21 and bores of the insulating spacers 19 arranged in the openings 52 of the 5. Due to the presence of these insulating spacers 19 to the dimensions similar to those of the guide bushes 13 during this operation, the saddles 5 are then positioned automatically and precisely at their location final.
  • the stools 5 are then immobilized in a conventional manner using nuts 18 screwed on the threaded rods 4, the latter bearing on the upper face of the saddle 5 via the collar of the insulating spacer 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Railway Tracks (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Panels For Use In Building Construction (AREA)
  • Road Paving Structures (AREA)
  • Road Signs Or Road Markings (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

Rails (2) pre-mounted on their tie plates (11) are suspended above the location at which a concrete slab is to be poured. The position of the rails is then adjusted to move the bottom plate of temporary tie plates, disposed under the base of each tie plate, accurately to the location at which the tie plates must rest. Concrete slab is then poured up to the height of the temporary tie plates. <??>The rails are raised, after which the temporary tie plates are removed. The rails are then positioned on the slab, with the tie plates fixed to the corresponding anchor members. 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 line and particular to a method of constructing a railway on a concrete slab which the concrete slab is poured around anchoring elements allowing fixation of saddles supporting the tracks 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 subways or trams to proceed with the laying of a railway on a concrete slab by bringing rails directly pre-assembled stool where the track is to be laid, the rails being kept suspension in their final position by means of a gantry with the saddles attached to the rail by fasteners. A concrete slab is then cast under the rails until stool height, the latter supporting anchoring elements consisting of rods threads passing through the saddles and having a lower part which is embedded in the concrete slab. Once the concrete has been taken, the stools are immobilized permanently on the concrete slab by tightening nuts on the threaded rods, these nuts coming to bear on the upper face of the saddles.

Dans un tel procédé de construction, il est nécessaire que les tiges filetées soient maintenus parfaitement perpendiculairement à la selle lors de la coulée du béton pour assurer un bon appui de la selle lors du serrage ultérieur des écrous sur les tiges filetées. Mais il est également nécessaire que les tiges filetées ne soient pas rendues rigidement solidaires de la selle afin que le serrage des écrous, après la prise du béton, provoque une mise sous tension de la partie des tiges filetées noyée dans le béton permettant d'obtenir une bonne tenue des tiges filetées dans la dalle de béton.In such a method of construction, it is necessary that the threaded rods are held perfectly perpendicular to the saddle when pouring concrete for ensure a good support of the saddle when tightening the nuts on the rods later threaded. But it is also necessary that the threaded rods are not rendered rigidly secured to the saddle so that the tightening of the nuts, after taking the concrete, causes tensioning of the part of the threaded rods embedded in the concrete to obtain a good hold of the threaded rods in the concrete slab.

Pour résoudre ce problème, il est connu actuellement d'utiliser des pièces élastiques ou des pièces fusibles qui maintiennent les tiges filetées sur la selle pendant la coulée du béton et qui permettent un déplacement des tiges filetées par rapport à la selle lors du serrage des écrous.To solve this problem, it is currently known to use elastic parts or fusible parts that hold the threaded rods on the saddle during casting concrete and which allow a displacement of the threaded rods with respect to the saddle during tightening the nuts.

Toutefois, de telles pièces élastiques ou pièces fusibles présentent l'inconvénient de ne pas assurer une bonne perpendicularité des tiges filetées sur la selle ce qui conduit à un mauvais appui des selles lors du serrage ultérieur des écrous. However, such elastic parts or fusible parts have the disadvantage of do not ensure a good perpendicularity of the threaded rods on the saddle which leads to a bad support of the saddles during the subsequent tightening of the nuts.

Aussi, un but de la présente invention est de proposer un procédé pour la réalisation d'une voie ferrée qui permette un positionnement précis, avec une bonne perpendicularité, d'éléments d'ancrage par rapport à la selle lors de la coulée du béton et qui permette d'obtenir des éléments d'ancrage qui soient indépendants des selles lors du serrage des écrous après la prise du béton.Also, an object of the present invention is to provide a method for carrying out a railway that allows precise positioning, with good perpendicularity, anchoring elements in relation to the saddle during casting of the concrete and which provides anchoring elements that are independent of the stool when tightening the nuts after setting the concrete.

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.For this purpose, the subject of the invention is a method of constructing a railway on a concrete slab in which the concrete slab is poured around elements anchoring device for fixing saddles supporting the tracks of the railway.

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

  • maintien en suspension des rails prémontés sur leurs selles définitives au-dessus de l'endroit où la dalle de béton doit être coulée, chaque selle définitives comportant une embase sous laquelle est disposée une selle provisoire assurant le guidage précis des éléments d'ancrage de la selle définitive,
  • réglage de la position des rails de manière à amener précisément la face inférieure des selles provisoires à endroit où devront reposer les selles définitives supportant les rails,
  • coulage de la dalle de béton jusqu'à hauteur des selles provisoires,
  • soulèvement des rails et extraction des selles provisoires,
  • positionnement précis des rails prémontés sur leurs selles sur la dalle de béton et fixation des selles définitives sur les éléments d'ancrage.
According to the invention, the method is characterized in that it comprises the following steps:
  • keeping the pre-assembled rails in suspension on their final saddles above the place where the concrete slab is to be poured, each definitive saddle comprising a base under which is disposed a temporary saddle providing precise guidance of the anchoring elements of the final saddle,
  • adjusting the position of the rails so as to precisely bring the underside of the temporary stool to where the final stools supporting the rails will have to rest,
  • pouring the concrete slab up to the height of the temporary stool,
  • lifting of rails and extraction of temporary stools,
  • precise positioning of the pre-mounted rails on their saddles on the concrete slab and fixing of the final stools on the anchoring elements.

Selon une autre caractéristique de l'invention, les selles provisoires comportent des douilles de guidages s'engageant dans des ouvertures adaptées de l'embase de la selle définitive, les douilles de guidage comportant un alésage ajusté recevant un élément d'ancrage constitué d'une tige filetée dont une partie déborde de la face inférieure de la selle provisoire.According to another characteristic of the invention, the temporary saddles comprise guide bushes engaging in apertures adapted from the seat base definitively, the guide bushes having an adjusted bore receiving an element an anchor consisting of a threaded rod, a portion of which protrudes from the underside of the temporary saddle.

Selon encore une autre caractéristique de l'invention, suite à l'extraction des selles provisoires, des entretoises sont disposées à l'intérieur des ouvertures des selles définitives ou bien autour des tiges filetées, ces entretoises assurant le positionnement précis des selles sur la dalle de béton en comportant un corps présentant une partie cylindrique, s'insérant dans les ouvertures de la selle définitive, dont le diamètre extérieur est ajusté au diamètre de l'ouverture de la selle définitive, la partie cylindrique du corps comprenant un alésage intérieur ajusté au diamètre de la tige filetée.According to yet another characteristic of the invention, following the extraction of stool temporary braces are placed inside the stool openings or else around the threaded rods, these spacers ensuring the precise positioning of the saddles on the concrete slab with a body having a cylindrical part, fitting into the openings of the definitive saddle, whose outside diameter is adjusted to the diameter of the opening of the final saddle, the cylindrical portion of the body comprising an inner bore adjusted to the diameter of the threaded rod.

Selon encore une autre caractéristique de l'invention, les rails sont suspendus au-dessus de la dalle de béton à couler au moyen d'un portique, ce dernier permettant d'amener précisément les rails dans une position désirée.According to yet another characteristic of the invention, the rails are suspended above of the concrete slab to be poured by means of a gantry, the latter permitting to precisely bring the rails to a desired position.

L'invention concerne également une selle provisoire destinée à être disposée sous une selle définitive supportant un rail de voie ferrée lors de la construction d'une voie ferrée sur une dalle de béton par le procédé de construction précédemment décrit, caractérisé en ce qu'elle comporte des douilles de guidage s'insérant dans des ouvertures adaptées de la selle définitive, les douilles de guidage comportant un alésage ajusté recevant un élément d'ancrage de la selle définitive constitué d'une tige dont une partie déborde de la face inférieure de la selle provisoire pour être noyée dans la dalle de béton.The invention also relates to a temporary saddle intended to be arranged under a definitive saddle supporting a railroad track when constructing a track rail on a concrete slab by the previously described construction method, characterized in that it comprises guide bushes inserted into adapted openings of the final saddle, the guide bushes comprising a fitted bore receiving an anchor element of the final saddle consisting of a rod part of which overflows from the underside of the temporary seat to be drowned in the concrete slab.

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 :

  • la selle provisoire comporte un corps constitué d'une plaque présentant des ouvertures recevant les douilles de guidage ;
  • les douilles de guidage comportent un épaulement qui vient s'insérer dans une cavité complémentaire réalisée dans la plaque en bordure des ouvertures, l'épaulement constituant une butée axiale ;
  • les tiges comportent une partie supérieure filetée débordant des douilles de guidage et recevant des écrous assurant la retenue verticale de la tige sur la selle ;
  • la tige comporte un pincement local sous la partie filetée, ce pincement local servant de butée de coulissement à la douille de guidage.
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 temporary saddle comprises a body consisting of a plate having openings receiving the guide bushes;
  • the guide bushes comprise a shoulder which is inserted into a complementary cavity made in the plate at the edges of the openings, the shoulder constituting an axial abutment;
  • the rods comprise a threaded upper portion projecting from the guide bushes and receiving nuts ensuring the vertical retention of the rod on the saddle;
  • the rod has a local pinch under the threaded portion, this local pinch serving as a sliding stop at the guide sleeve.

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 d'ensemble d'un dispositif pour la mise en oeuvre du procédé de construction selon l'invention ;
  • la figure 5 est une vue agrandie d'un rail de la figure 4 équipé d'une selle provisoire dans un mode particulier de réalisation du procédé de construction selon l'invention ;
  • la figure 6 est une vue de détail des moyens d'assemblage de la selle provisoire sur la selle supportant le rail selon une coupe similaire à celle de la figure 3 ;
  • la figure 7 est une vue de côté, 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 description given below of a particular embodiment of the invention, given by way of non-limiting example, with reference to the appended drawings. , wherein :
  • Figure 1 is a top view of a temporary saddle according to a particular embodiment of the invention;
  • Figure 2 is a side view of the temporary saddle of Figure 1;
  • Figure 3 is a detail view showing a section of the temporary saddle along the line III-III of Figure 1;
  • Figure 4 is an overall view of a device for carrying out the construction method according to the invention;
  • Figure 5 is an enlarged view of a rail of Figure 4 equipped with a temporary seat in a particular embodiment of the construction method according to the invention;
  • Figure 6 is a detail view of the assembly means of the temporary saddle on the saddle supporting the rail in a section similar to that of Figure 3;
  • Figure 7 is a side view, with a partial section, of the final saddle after 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 understanding of the invention have been shown. The same elements have 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.Figures 1 and 2 show a temporary saddle 1 according to a particular embodiment of embodiment of the invention. According to these figures, the temporary seat 1 comprises a body 11 formed by a rectangular metal plate having multiple vents 10 opening on the lower and upper faces of the plate metallic 11.

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 comprises two openings 12 arranged at ends diagonally opposite of the plate 11. These openings 12 receive bushings of 13 having an outside diameter adjusted to the diameter of the opening 12 and an inner bore adapted to fitly receive a threaded rod 4 no shown in Figures 1 and 2.

Conformément à la figure 3, les douilles de guidage 13 comportent dans leur partie inférieure un épaulement 20 qui vient s'insérer dans une cavité adaptée de la face inférieure de la plaque 11 lorsque les douilles sont introduites dans les ouvertures 12 par la face inférieure de la selle provisoire 1. According to FIG. 3, the guide bushes 13 comprise in their part lower a shoulder 20 which is inserted into a cavity adapted to the face lower the plate 11 when the sleeves are introduced into the openings 12 by the underside of the temporary saddle 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.Spacers 14, consisting of cylindrical washers, are arranged on the face upper plate 11 around the guide bushes 13, these spacers 14 having an internal bore slightly greater than the outer diameter of the guide sleeves 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 of 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 grasping the temporary saddle 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 4 à 6.The use of the temporary seat 1 previously described and the method of construction according to the invention will now be described with reference to FIGS. 4-6.

Conformément à la figure 4, 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 5, 6 et 7, 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 d'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 7, en matériau résilient et avantageusement électriquement isolant.According to Figure 4, a gantry 6 is used to bring two rails 2 above the location where a concrete slab 3 is to be poured. 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 in Figures 5, 6 and 7, the two rails 2 are connected to saddles 5 by fasteners 9, these saddles 5 comprising conventional manner a base 51 consisting of a metal plate substantially full intended to rely on the concrete slab 3 via a sole 20, shown in FIG. 7, made 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 des tiges filetées 4 insérées dans les douilles de guidage 13 recevant dans leur partie supérieure des écrous 18 de blocage, ces tiges filetées 4 comportant un diamètre légèrement inférieur au diamètre de l'alésage de la douille de guidage 13 et présentant 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 saddle 1 conforming to that described above is arranged under each of the saddles 5 so that the guide bushes 13 supported by the temporary saddle 1 engage in fitted openings 52 of the base 51, the face bottom of the base 51 coming to bear on the top of the spacers 14 supported by the temporary saddle 1, a resulting space then between the lower face of the base 51 and the upper face of the plate 11 of the temporary seat 1. The seat provisional 1 is kept in this position under saddle 5 by the elements anchoring the saddle 5 on the concrete slab 3 threaded rods 4 inserted in the guide bushes 13 receiving in their upper part locking nuts 18, these threaded rods 4 having a diameter slightly less than the diameter of the bore of the guide sleeve 13 and having a local pinch 41 on which rests a washer 17 bearing on the underside of the guide bushes 13. The threaded rods 4 disposed in this way comprise a portion that extends well beyond 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 destinés à supporter les rails 2 de la voie à construire.Prior to the pouring of the concrete slab 3, the underside of the stool 1 is coated with formwork oil and beam 62 of gantry 6 is driven so as to bring the underside of the temporary stool 1 to the place where must be placed the support surfaces of the saddles 5 intended to support the rails 2 of the way to build.

Une dalle de béton 3, représentée en trait mixte sur la figure 4, 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 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, shown in phantom in FIG. 4, is then cast by gravity up to the height of temporary stool 1 by drowning the part of the stems threaded 4 overflowing under the plate 11. Once this is done, the surface top of concrete 3 is smoothed so that the concrete surface follows the slope walk 15 at the edge of the temporary saddle 1, the latter indicating the slope that the concrete slab 3 must have 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 lifted by means of portico 6. Temporary stools 1 accompanied by guide bushes 13 and spacers 14 are then removed, the extraction of the stool temporary 1 being facilitated by the presence of the handles 16.

Des entretoises isolantes électriquement 19, représentées sur la figure 7, 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, 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 les ouvertures 52.Electrically insulating spacers 19, shown in FIG. 7, are then disposed within the openings 52 of the saddle 5, these insulating spacers 19 having a body having a cylindrical portion, fitting into the openings 52, whose inner and outer diameters are identical to the inner diameters and outside of the guide bushings 13, that is to say respectively adjusted to the diameter openings 52 and threaded rods 4. These spacers 19 also have a flange on the upper part on which the tightening nuts spring, not shown in 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 overflow from the underside of the saddle 5 when inserted into the openings 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. 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. Du fait de la présence de ces 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. An additional sole 21, simply electrically insulating, is advantageously arranged under the previous sole 20, the assembly being brought into contact with the concrete slab 3 while passing the threaded rods 4 projecting from the concrete slab 3 through the soles 20, 21 and bores of the insulating spacers 19 arranged in the openings 52 of the 5. Due to the presence of these insulating spacers 19 to the dimensions similar to those of the guide bushes 13 during this operation, the saddles 5 are then positioned automatically and precisely at their location final.

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 stools 5 are then immobilized in a conventional manner using nuts 18 screwed on 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, par l'utilisation de selles provisoires conformes à l'invention, permet d'obtenir un positionnement précis des tiges filetées constituant les ancrages des selles et ceci avec une très bonne perpendicularité grâce à l'excellent guidage réalisé par les douilles de guidage. De plus, la mise en place des entretoises isolantes de gabarit équivalent aux douilles de guidage, après le retrait des selles provisoires, assure un positionnement précis des selles sur la dalle de béton sans procédure de réglage supplémentaire.Such a method of construction, by the use of temporary stools in accordance with the invention makes it possible to obtain precise positioning of the threaded rods constituting stool anchorages and this with a very good perpendicularity thanks to the excellent guiding carried out by the guide bushes. In addition, the installation of spacers insulating gauge equivalent to guiding sleeves, after removal of stool Provisional positioning of the saddles on the concrete slab without additional adjustment procedure.

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 ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiment described and illustrated which has been given only as an example. Modifications are possible, particular from the point of view of the constitution of the various elements or by substitution technical equivalents, without departing from the scope of protection of the invention.

Claims (8)

Procédé de construction d'une voie ferrée sur une dalle de béton (3) dans lequel la dalle de béton (3) est coulée autour d'éléments d'ancrage (4) permettant la fixation de selles (5) supportant les rails (2) de la voie ferrée, caractérisé en ce qu'il comporte les étapes suivantes: maintien en suspension des rails (2) prémontés sur leurs selles (5) au-dessus de l'endroit où la dalle de béton (3) doit être coulée, chaque selle (5) comportant une embase (51) sous laquelle est disposée une selle provisoire (1) comportant des douilles de guidages (13) s'engageant dans des ouvertures (52) adaptées de l'embase (51), les douilles de guidage (13) comportant un alésage ajusté recevant un élément d'ancrage constitué d'une tige filetée (4) dont une partie déborde de la face inférieure de la selle provisoire (1), réglage de la position des rails (2) de manière à amener précisément la face inférieure des selles provisoires (1) à l'endroit où devront reposer les selles (5) supportant les rails (2), coulage de la dalle de béton (3) jusqu'à hauteur des selles provisoires (1), soulèvement des rails (2) et extraction des selles provisoires (1), positionnement précis des rails (2) prémontés sur leurs selles (5) sur la dalle de béton (3) et fixation des selles (5) sur les éléments d'ancrage (4). Method for constructing a railway track on a concrete slab (3) in which the concrete slab (3) is cast around anchoring elements (4) for fixing saddles (5) supporting the rails (2) ) of the railway, characterized in that it comprises the following steps: maintaining in suspension rails (2) pre-mounted on their saddles (5) above the place where the concrete slab (3) is to be poured, each saddle (5) having a base (51) under which is disposed a temporary seat (1) comprising guide sleeves (13) engaging in apertures (52) adapted from the base (51), the guide bushes (13) having an adjusted bore receiving an anchoring element consisting of a threaded rod (4), a part of which protrudes from the underside of the temporary saddle (1), adjusting the position of the rails (2) so as to precisely bring the underside of the temporary saddles (1) to the place where the saddles (5) supporting the rails (2) will have to rest, pouring the concrete slab (3) to the height of the temporary stools (1), lifting of rails (2) and extraction of temporary stools (1), precise positioning of the rails (2) pre-mounted on their saddles (5) on the concrete slab (3) and fixation of the saddles (5) on the anchoring elements (4). Procédé de construction d'une voie ferrée selon la revendication 1, caractérisé en ce que, suite à l'extraction des selles provisoires (1), des entretoises (19) sont disposées à l'intérieur des ouvertures (52) des selles (5) ou bien autour des tiges filetées (4), ces entretoises (19) assurant le positionnement précis des selles (5) sur la dalle de béton (3) en comportant un corps présentant une partie cylindrique s'insérant dans les ouvertures (52) dont le diamètre extérieur est ajusté au diamètre de l'ouverture (52), ladite partie cylindrique comprenant un alésage intérieur ajusté au diamètre de la tige filetée (4).Method of constructing a railway line according to claim 1, characterized in that , following the extraction of the temporary saddles (1), spacers (19) are arranged inside the openings (52) of the saddles (5). ) or around the threaded rods (4), these spacers (19) ensuring the precise positioning of the saddles (5) on the concrete slab (3) comprising a body having a cylindrical portion inserted into the openings (52) whose outer diameter is adjusted to the diameter of the opening (52), said cylindrical portion comprising an inner bore adjusted to the diameter of the threaded rod (4). Procédé de construction d'une voie ferrée selon l'une quelconque des revendications 1 à 2, caractérisé en ce que lesdits rails (2) sont suspendus au-dessus de la dalle (3) à couler au moyen d'un portique (6), ce dernier permettant d'amener précisément les rails (2) dans une position désirée. A method of constructing a railway according to any one of claims 1 to 2, characterized in that said rails (2) are suspended above the slab (3) to be cast by means of a gantry (6) , the latter to precisely bring the rails (2) in a desired position. Selle provisoire (1) destinée à être disposée sous une selle (5) supportant un rail (2) de voie ferrée lors de la construction d'une voie ferrée sur une dalle de béton (3) par un procédé selon l'une quelconque des revendications 1 à 3, ladite selle provisoire (1) étant placée sous la selle (5) lors du coulage de la dalle de béton (3) puis retirée après durcissement de la dalle de béton (3), caractérisée en ce qu'elle comporte des douilles de guidage (13) s'insérant dans des ouvertures (52) adaptées de la selle (5), lesdites douilles de guidage (13) comportant un alésage ajusté recevant un élément d'ancrage (4) de la selle (5) constitué d'une tige dont une partie déborde de la face inférieure de la selle provisoire (1) pour être noyée dans la dalle de béton (3).Temporary saddle (1) intended to be arranged under a saddle (5) supporting a railway track (2) during the construction of a railway on a concrete slab (3) by a method according to any one of claims 1 to 3, said temporary saddle (1) being placed under the saddle (5) during the pouring of the concrete slab (3) and then removed after hardening of the concrete slab (3), characterized in that it comprises guide bushes (13) inserted into apertures (52) adapted from the saddle (5), said guide bushes (13) having an adjusted bore receiving an anchoring element (4) of the saddle (5) consisting of a rod, a portion of which extends beyond the underside of the temporary saddle (1) to be embedded in the concrete slab (3). Selle provisoire selon la revendication 4, caractérisée en ce qu'elle comporte un corps constitué d'une plaque (11) présentant des ouvertures (12) recevant les douilles de guidage (13).Temporary seat according to claim 4, characterized in that it comprises a body consisting of a plate (11) having openings (12) receiving the guide bushes (13). Selle provisoire selon la revendication 5, caractérisé en ce que les douilles de guidage (13) comportent un épaulement (20) qui vient s'insérer dans une cavité complémentaire réalisée dans la plaque (11) en bordure des ouvertures (12), ledit épaulement (20) constituant une butée axiale.Temporary seat according to claim 5, characterized in that the guide bushes (13) comprise a shoulder (20) which is inserted into a complementary cavity formed in the plate (11) at the edges of the openings (12), said shoulder (20) constituting an axial stop. Selle provisoire selon l'une quelconque des revendications 5 à 6, caractérisée en ce que lesdites tiges (4) comportent une partie supérieure filetée débordant des douilles de guidage (13) et recevant des écrous (18) assurant la retenue verticale de ladite tige (4) sur la selle (5).Temporary saddle according to any one of claims 5 to 6, characterized in that said rods (4) comprise a threaded upper portion protruding from the guide bushes (13) and receiving nuts (18) ensuring the vertical retention of said rod ( 4) on the saddle (5). Selle provisoire selon la revendication 7, caractérisée en ce que, sous la partie supérieure filetée, ladite tige (4) comporte un pincement local (41) servant de butée de coulissement à la douille de guidage (13).Temporary saddle according to claim 7, characterized in that , under the threaded upper part, said rod (4) comprises a local pinch (41) serving as sliding stop to the guide sleeve (13).
EP02292596A 2001-11-07 2002-10-21 Method of building a railway on a concrete slab and temporary tie plate for carrying out said method Expired - Lifetime EP1310594B1 (en)

Applications Claiming Priority (2)

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FR0114400 2001-11-07
FR0114400A FR2831897B1 (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

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JP (1) JP4116862B2 (en)
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DE60225522T2 (en) 2009-04-02
AU2002301663B2 (en) 2007-10-18
MXPA02010918A (en) 2004-07-16
EP1310594B1 (en) 2008-03-12
CA2410923C (en) 2009-04-07
US6954974B2 (en) 2005-10-18
HK1057772A1 (en) 2004-04-16
ATE389063T1 (en) 2008-03-15
TW200300193A (en) 2003-05-16
PT1310594E (en) 2008-06-23
KR100923829B1 (en) 2009-10-27
DE60225522D1 (en) 2008-04-24
US20030085294A1 (en) 2003-05-08
JP2003184008A (en) 2003-07-03
FR2831897B1 (en) 2004-05-28
KR20030038405A (en) 2003-05-16
FR2831897A1 (en) 2003-05-09
CA2410923A1 (en) 2003-05-07
TWI281527B (en) 2007-05-21
BR0204613A (en) 2003-09-16

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