EP3336249B1 - Herstellungsverfahren eines tragelements einer eisenbahnschiene, durch die umsetzung dieses verfahrens erhaltenes tragelement und eisenbahnschiene, die ein solches element umfasst - Google Patents

Herstellungsverfahren eines tragelements einer eisenbahnschiene, durch die umsetzung dieses verfahrens erhaltenes tragelement und eisenbahnschiene, die ein solches element umfasst Download PDF

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Publication number
EP3336249B1
EP3336249B1 EP17207253.0A EP17207253A EP3336249B1 EP 3336249 B1 EP3336249 B1 EP 3336249B1 EP 17207253 A EP17207253 A EP 17207253A EP 3336249 B1 EP3336249 B1 EP 3336249B1
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EP
European Patent Office
Prior art keywords
support element
railway track
reinforcements
track support
transverse
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EP17207253.0A
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English (en)
French (fr)
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EP3336249A1 (de
Inventor
Caroline MASSON
Marcel Girardi
Lise PESQUEUX
Nicolas ANDRIEU
Vincent Leger
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Alstom Transport Technologies SAS
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Alstom Transport Technologies SAS
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/38—Longitudinal sleepers; Longitudinal sleepers integral or combined with tie-rods; Combined longitudinal and transverse sleepers; Layers of concrete supporting both rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B21/00—Track superstructure adapted for tramways in paved streets
    • E01B21/02—Special supporting means; Draining of rails

Definitions

  • the subject of the invention is that of the methods of manufacturing a railway support element.
  • the document EP 2 351 884 A1 discloses a method of manufacturing a rail support member comprising arranging, side by side, on a prepared floor, a succession of prefabricated concrete modules.
  • Each module comprises two end blocks, respectively left and right, secured to one another by two transverse jambs.
  • each end block has a recess forming a trough.
  • a longitudinal reinforcement is disposed in each of the grooves, respectively left and right, formed by the succession of buckets end blocks, respectively left and right.
  • Rail fastening systems are then held in position above the grooves, the time of pouring concrete in each of the grooves so as to achieve the right and left rails support the rails of the railway.
  • the fastening systems are thus sealed to the sill in their final position.
  • the railway is completed by laying the rails on the track support element thus produced, each rail being fixed to the corresponding sill by the fastening systems installed.
  • the difficulty of implementing this manufacturing method lies mainly in maintaining in position the rail fastening systems during the setting of the concrete constituting the stringers of the support member.
  • this method provides on-site supply of prefabricated modules, which poses a problem of additional logistics.
  • This method does not make it easy to make a railroad with curves, the use of prefabricated modules not suitable for this type of route.
  • the document FR 3 013 062 discloses a method of manufacturing a rail support member for supplying longitudinal section formwork in U, rectilinear. They are placed on the ground, on either side of the route of the track, to realize the left and right sills of the support element of the railway. Reinforcements are placed inside the longitudinal formwork.
  • Transverse forms are also supplied and placed between the longitudinal forms to make the transverse jambs of the rail element. Reinforcements are placed inside the transverse formwork.
  • the rail fastening systems are also prepositioned before a concrete is poured inside the various forms so as to make the rail support element and seal in position the systems of the rail. rail fastening.
  • the shape of the rail support element produced by the implementation of one or the other of the processes presented above, is interesting, especially for the realization of turfed railroad tracks. Indeed, such a support element may be covered with a relatively thick layer of soil, which thus promotes good rooting of the grass and increased resistance of the turf layer.
  • the invention aims to overcome the aforementioned problems.
  • the subject of the invention is a method for manufacturing a rail support element, characterized in that it comprises the following successive steps: arranging longitudinal reinforcement on a prepared support structure, on the one hand and on the other. another of a layout of the railway; have transverse reinforcement on the prepared support structure, between the longitudinal reinforcement; arranging reserve forms on the prepared support structure, between the longitudinal reinforcement on the one hand and between two successive transverse reinforcement on the other hand; pouring a concrete so as to cover the reinforcement placed on the ground; by means of a slippery formwork machine, conforming the cast concrete according to a predetermined profile so that the rail support element produced has right and left longitudinal members and transverse jambs for securing the right and left longitudinal members between they; and, remove the reserve forms.
  • the invention also relates to a rail support element obtained by the implementation of the preceding method and which comprises, between the right and left sills and between two successive transverse legs, a recess, preferably through.
  • the invention also relates to a railway comprising a rail support element in accordance with the previous element.
  • the rail support element 10 comprises, on either side of a line C of the railway, a left sill 11 and a right sill 12.
  • the left sill 11 has a lower face 21 in contact with a support structure 8 resting on the ground 9 ( figure 3 ), an outer lateral face 22 an inner lateral face 24 and an upper face 23.
  • the support structure is directly the floor 9.
  • the right sill 12 has a lower face 25 in contact with the support structure 8, an outer lateral face 26 an inner lateral face 28 and an upper face 27.
  • each of the longitudinal members, 11, 12 comprises a plurality of saddles 30.
  • a saddle is a base, plastic or metal, having anchoring rods sealed in the concrete of the longitudinal members.
  • Fasteners 31 fixed to the base allow to maintain in position a rail 32.
  • Flanges and fasteners constitute a rail fastening system. This is schematically represented on the figure 3 .
  • the rail support element 10 comprises transverse legs 14 for securing the right and left longitudinal members, 11, 12, which constitute stiffeners, so as to prevent the right and left sill rails from moving apart from one another. other under the effect of efforts, especially the passage of trams, especially in curves.
  • the transverse legs 14 are arranged at substantially regular intervals, for example every 1.5 m in straight alignment and every 1.2 m in curve.
  • a transverse jamb 14 has a lower face 31 in contact with the support structure 8, an upstream lateral face 32, a downstream lateral face 34 and an upper face 33.
  • the upstream and downstream qualifiers relate to the direction of movement of the vehicles on the track.
  • a jamb 14 has a second height h2 equal to or less than a first height h1 of the longitudinal members, 11, 12. These heights, and more generally the dimensions of the profile of the support member 10 are predetermined in an upstream step in the office study.
  • the first height varies between 20 cm and 40 cm.
  • the rail support element 10 Transversally between the right and left longitudinal members, 11 and 12, and longitudinally between two successive legs 14, the rail support element 10 comprises a recess 16.
  • This recess 16 is preferably through.
  • the railway track 50 comprises, in addition to the rail support element 10, the support structure 8 disposed on the ground 9, a substrate 40 and a grass layer 42 of finishing.
  • the substrate 40 is preferably soil allowing rooting of the grass of the layer 42.
  • the substrate 40 covers the rail support element 10.
  • the thickness e of the substrate 40 above the support structure 8 is, for example, 35 cm.
  • the substrate 40 fills, in particular, the recess 16 between the longitudinal members 11 and 12 and on either side of them. to come in direct contact with the support structure 8.
  • a step 110 the support structure 8 on which the rail support member 10 will be made is realized. It is disposed on the properly prepared soil.
  • the support structure is likely to provide a stable support for the element 10.
  • longitudinal reinforcement intended to reinforce the stringers
  • a longitudinal longitudinal reinforcement and a left longitudinal reinforcement are arranged on either side of the path C of the railway. They are spaced from each other by a distance corresponding to the position of the longitudinal members 11 and 12. If necessary, they are bent to follow the path C.
  • transverse reinforcements intended to reinforce each leg, are placed successively between the two longitudinal reinforcements.
  • Each transverse reinforcement is connected to the longitudinal left and right reinforcement.
  • the distance between two successive transversal reinforcements is locally adapted to the C route.
  • step 140 reserve forms are placed between the longitudinal reinforcement on the one hand and between two successive transverse reinforcement on the other hand.
  • a reserve formwork is parallelepipedic. It has a height equal to the second height h2 transverse legs 14 to achieve. It has a width equal to the distance between the inner faces 24 and 28 of the stringers to achieve. It has a length equal to the distance between the upstream and downstream side faces 32 and 34 facing two successive legs 14.
  • Two successive forms are spaced apart from each other so as to provide an interval corresponding to the thickness of a jamb 14 to be made, that is to say to the distance between the upstream and downstream side faces 32 and 34 of the same jamb 14.
  • a transverse reinforcement is housed in this interval.
  • step 150 a suitable concrete is prepared, then loaded into a slipform machine, suitable for moving along the track C of the railway track 50, above the reinforcement and formwork installed on the structure of support, so as to realize, in a single pass, automatically and continuously the rail support element 10.
  • a sub-step 152 the machine pours the concrete so as to produce a continuous slab covering the longitudinal reinforcement.
  • the formwork of which the machine is provided conform the slab.
  • the concrete is distributed and smoothed so as to give the slab the predetermined profile, corresponding to the end section visible on the figure 2 .
  • the machine comprises first right and left formwork to form the upper faces and the outer lateral faces of the right and left sills; and a second central formwork for shaping the upper faces of the legs and said portions of each of the inner side faces of the right and left sills.
  • the height of the slipforms is adjusted before using the machine to profile the fresh concrete slab to the predetermined profile.
  • an automatic saddle insertion machine circulates over the rail support element 10 so as to insert, in predefined positions, the saddles of the saddle. fixing the rails 32.
  • the saddles are inserted into the fresh concrete with a vibratory movement for driving into the concrete, the anchor rods placed under a base of a saddle.
  • the saddle is sealed in position.
  • the insertion position is obtained with great precision.
  • such an automatic saddle insertion machine comprises means allowing, while the saddle to be inserted is driven by a vibratory movement, that the still fresh concrete retains the shape conferred on it in step 150.
  • step 170 the residual concrete present on the reserve forms is cleaned. Then, after a first drying, the reserve forms are removed. The lower portion of the inner side faces of each sill and the upstream and downstream side faces of the legs are then exposed. The support structure 8 on which is disposed the rail support element 10 is updated.
  • step 180 rails 32 are fixed to the saddle 30 by means of fasteners 31 adapted.
  • the railway support element 10 is covered with a substrate 40 chosen according to the nature of the finishing surface layer of the railway track 50.
  • the substrate is made of earth. This is arranged above and on both sides of the rail support element 10.
  • a topcoat 42 is made. It is preferably a turf layer, which is unwound on the substrate 40. The turf layer is arranged to be substantially flush with the upper edge of the rails 32.
  • the turf layer can take root in a large soil thickness, thus ensuring stability of the turf and its resistance over time.

Claims (9)

  1. Verfahren (100) zum Herstellen eines Elements zum Stützen eines Schienenwegs (10), gekennzeichnet dadurch, dass es die folgenden aufeinanderfolgenden Schritte aufweist:
    - Anordnen (120) von Längsbewehrungen auf einer vorbereiteten Stützstruktur auf beiden Seiten einer Trasse (C) des Schienenwegs,
    - Anordnen (130) von Querbewehrungen auf der vorbereiteten Stützstruktur zwischen den Längsbewehrungen,
    - Anordnen (140) von Aussparungsschalungen auf der vorbereiteten Stützstruktur einerseits zwischen den Längsbewehrungen und andererseits zwischen zwei aufeinanderfolgenden Querbewehrungen,
    - Gießen (152) eines Betons, um die am Boden angeordneten Bewehrungen zu bedecken,
    - Anpassen (154), mittels einer Gleitschalungsmaschine, des gegossenen Betons entlang eines vorbestimmten Profils derart, dass das erstellte Element zum Stützen des Schienenwegs eine rechte und eine linke Längsschwelle (11, 12) und Querschenkel (14) zum festen Verbinden der rechten und der linken Längsschwelle miteinander aufweist, und
    - Entfernen (170) der Aussparungsschalungen.
  2. Verfahren gemäß dem Anspruch 1, aufweisend einen Anfangsschritt (110), welcher aus Vorbereiten der Stützstruktur, auf welcher das Element zum Stützen des Schienenwegs (10) erstellt wird, besteht.
  3. Verfahren gemäß irgendeinem der vorhergehenden Ansprüche, gekennzeichnet dadurch, dass eine Höhe einer Aussparungsschalung gleich einer Höhe (h2) eines Querschenkels (14) ist.
  4. Verfahren gemäß irgendeinem der vorhergehenden Ansprüche, aufweisend, nachdem der gegossene Beton mittels einer Gleitschalungsmaschine angepasst wurde, einen Schritt (160), welcher aus Installieren von Systemen zur Schienenbefestigung in dem noch frischen Beton mittels einer geeigneten automatischen Einbringvorrichtung besteht.
  5. Verfahren gemäß dem Anspruch 4, aufweisend, nach dem Schritt (160) der Installation der Systeme zur Schienenbefestigung, einen Schritt (180), welcher aus Befestigen von Schienen (32) auf der rechten und der linken Längsschwelle (11, 12) unter Verwendung der installierten Systeme zur Schienenbefestigung besteht.
  6. Verfahren gemäß irgendeinem der vorhergehenden Ansprüche, wobei das Verfahren mit einem Schritt (190), welcher aus Bedecken des erstellten Elements zum Stützen des Schienenwegs (10) mittels eines geeigneten Substrats (40) besteht, weitergeht.
  7. Verfahren gemäß dem Anspruch 6, bei welchem, wobei das Substrat (40) aus Erde ist, das Verfahren einen finalen Schritt (200) der Installation einer künstlichen Deckschicht (42) aus Gras aufweist.
  8. Element zum Stützen eines Schienenwegs (10), gekennzeichnet dadurch, dass es aus dem Durchführen eines Herstellungsverfahrens (100) gemäß irgendeinem der vorhergehenden Ansprüche resultiert und es zwischen einer rechte und einer linken Längsschwelle (11, 12) und zwischen zwei aufeinanderfolgenden Querschenkeln (14) eine, vorzugweise durchgehende, Aussparung aufweist.
  9. Begrünter Schienenweg (50), gekennzeichnet dadurch, dass er ein Element zum Stützen eines Schienenwegs (10) gemäß dem Anspruch 8 aufweist.
EP17207253.0A 2016-12-14 2017-12-14 Herstellungsverfahren eines tragelements einer eisenbahnschiene, durch die umsetzung dieses verfahrens erhaltenes tragelement und eisenbahnschiene, die ein solches element umfasst Active EP3336249B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1662452A FR3060036B1 (fr) 2016-12-14 2016-12-14 Procede de fabrication d'un element de support d'une voie ferree ; element de support de voie ferree obtenu par la mise en oeuvre de ce procede et voie ferree comportant cet element

Publications (2)

Publication Number Publication Date
EP3336249A1 EP3336249A1 (de) 2018-06-20
EP3336249B1 true EP3336249B1 (de) 2019-05-15

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EP17207253.0A Active EP3336249B1 (de) 2016-12-14 2017-12-14 Herstellungsverfahren eines tragelements einer eisenbahnschiene, durch die umsetzung dieses verfahrens erhaltenes tragelement und eisenbahnschiene, die ein solches element umfasst

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EP (1) EP3336249B1 (de)
DK (1) DK3336249T3 (de)
ES (1) ES2741844T3 (de)
FR (1) FR3060036B1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US872831A (en) * 1907-01-19 1907-12-03 Matthias R Longacre Railway.
FR2936819B1 (fr) * 2008-10-06 2014-12-12 Stradal Traverse en beton pour voie ferree en zone urbaine, pouvant incorporer un revetement vegetalise.
FR3013062B1 (fr) * 2013-11-08 2016-01-15 Eiffage Rail Structure support en beton arme pour voie ferree et procede d'obtention

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
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Also Published As

Publication number Publication date
EP3336249A1 (de) 2018-06-20
ES2741844T3 (es) 2020-02-12
FR3060036B1 (fr) 2019-05-24
FR3060036A1 (fr) 2018-06-15
DK3336249T3 (da) 2019-08-05

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