EP2623670B1 - Voie sans ballast pour véhicules ferroviaires - Google Patents
Voie sans ballast pour véhicules ferroviaires Download PDFInfo
- Publication number
- EP2623670B1 EP2623670B1 EP13000562.2A EP13000562A EP2623670B1 EP 2623670 B1 EP2623670 B1 EP 2623670B1 EP 13000562 A EP13000562 A EP 13000562A EP 2623670 B1 EP2623670 B1 EP 2623670B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reinforcing elements
- precast
- track structure
- slab
- structure according
- 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.)
- Active
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 46
- 239000011376 self-consolidating concrete Substances 0.000 claims description 2
- 239000004567 concrete Substances 0.000 description 17
- 238000010276 construction Methods 0.000 description 14
- 230000002787 reinforcement Effects 0.000 description 10
- 238000011065 in-situ storage Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000010426 asphalt Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000004382 potting Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- 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
- E01B1/004—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with prefabricated elements embedded in fresh concrete or asphalt
Definitions
- the invention relates to a slab track for rail vehicles of the type specified in the preamble of claim 1.
- the support plate is either made of reinforced concrete or from asphalt. This design has proved little due to various technical problems in the design and is hardly applied.
- the finished parts are coupled with each other under coupling a portion of their reinforcement to form a long chain, thus forming a continuous deck slab.
- special components are required for the coupling, and there must be sufficient space between the precast plates for the necessary tools.
- the finished parts are also on a hydraulically strengthened support layer with the interposition of a subsequently introduced encapsulation.
- the bond between the base course and the prefabricated slab is also desired here, but its production causes problems in the field of construction.
- the individual precast slabs remain unconnected. Against horizontal displacement, they are held by anchored in the substructure consoles or bollards and so do without composite of the substructure. The finished parts are only short and get no cracks due to forced voltages.
- This system is actually designed for use in tunnels or on bridges where the load-bearing substructure in the form of the tunnel floor or bridge plate already exists. On the open track, this uncoupled system additionally requires Its own reinforced support plate, in which the necessary retaining brackets or bollards are anchored.
- the overall structure will be significantly higher on earth tracks than in the competitive systems, with the associated economic disadvantages.
- a potting layer is also required in this system. An encapsulation layer between precast slab and support plate to compensate for tolerances is necessary in any case.
- a prefabricated construction is known in which the prefabricated panels have frame-shaped reinforcing elements, which protrude from the bottom of the prefabricated panels and serve to connect the prefabricated panels with an applied on a support layer encapsulation layer.
- the longitudinal direction of the reinforcing elements extends transversely to the longitudinal direction of the precast slabs.
- a slab track which is made of cast-in-situ concrete, and in the manufacture of which by temporary shuttering dummy joints are introduced.
- the reinforcement of the in-situ concrete extends beyond the dummy joints.
- the invention has for its object to provide a slab track for rail vehicles of the type mentioned, which is easier to manufacture and can be avoided in the cracks within the precast slabs.
- the invention combines the advantages of uncoupled single plates with the advantages of in-situ concrete slab construction.
- An advantage of single plates is generally seen in the fact that they usually do not get cracks within the precast slab.
- Uncoupled single plates have the advantage that they do without expensive coupling.
- the construction according to the invention provides that the bottom layer is at the same time formed as a continuously supporting in-situ concrete support plate.
- the Prefabricated panels ensure a clean and durable surface of the slab track and at the same time the cracks are laid in a controlled manner in the joint between the prefabricated slabs. Due to the formation of the lower layer at the same time as a support plate eliminates the otherwise necessary additional potting, whereby the height of the road and operations are reduced during manufacture.
- the construction according to the invention also provides for dispense with an elaborate design of consoles or bollards and to produce the bond between prefabricated slab and the Unterguss slaughter by means of a reinforcement. Particularly advantageous for this purpose, the already necessary for the transport reinforcement of the precast plate is used.
- the further reinforcing elements extending in the longitudinal direction of the precast slabs are rod-shaped reinforcing elements. It is envisaged that the rod-shaped reinforcing elements extend at least almost over the length of the precast slab.
- the reinforcing elements that protrude from the precast slab are V-shaped brackets, which are arranged in pairs and aligned to receive the rod-shaped reinforcing elements between their tips. It is also expedient that, in addition to the rod-shaped reinforcing elements extending transversely to these extending reinforcing elements are provided, which together form a reinforcing grid.
- rod-shaped reinforcing elements protrude at one end of the precast slab over them, so that a projecting portion is formed, which protrudes under the next precast precast plate.
- longitudinal bars protrude beyond one end of the precast slab, so that a protruding section is formed, which protrudes below the next precast slab.
- rail supports are integrally formed on the top of the prefabricated panels. Since these rail supports are produced during the casting of the precast slab, a subsequent assembly of rail supports is eliminated.
- the length of the precast slab is preferably 3.9 m to 5.2 m.
- the width of the precast plate is suitably 2.4 m to 2.6 m.
- the subglobe layer is preferably made of a self-compacting concrete, whereby air pockets are avoided in the Untergusstik.
- the thickness of the subglow layer is preferably 15 cm to 20 cm, and the thickness of the precast plate is at most 13 cm, and preferably 7 cm to 10 cm.
- the overall construction height of the final monolithic roadway is only about as thick as the grouting layer, i. significantly thinner than in the field of prefabricated panels. It therefore arises there automatically a dummy joint, at the later tears the road under forced tension of shrinkage and temperature. For a continuous load bearing behavior on the dummy joint, either the supporting reinforcement of the sub-casting layer is extended, so that it extends below the next precast board, or special dowels are inserted.
- the slab track 1 consists essentially of a precast slab 2 and a bottom layer 3, wherein the slab track 1 arranged on a support layer 4 is, which is preferably a hydraulically strengthened support layer 4.
- the base layer 4 may also be the concrete floor of a tunnel tube or a bridge structure.
- the prefabricated slab 2 consists of concrete with reinforcing elements 5 arranged therein, which project on the underside of the precast slab.
- At the top of the prefabricated panel 2 integrally formed on this rail supports 6, wherein each of the rail supports 6 serves to support a rail which is fixed on the rail support.
- Fig. 2 is a plan view of a single precast slab 2, as described to Fig. 1 consists of concrete, with reinforcing elements 8 contained therein, which extend in the longitudinal direction of the precast slab 2 and in Fig. 2 dashed lines are shown, as they are invisible in plan view. These reinforcing elements 8 extend over the length L of the precast slab 2.
- B the width of the precast slab 2 is designated.
- the rail supports 6 are arranged in a regular arrangement, on which the rails are mounted. In each rail support 6, two openings 9 are provided, projecting through the dowels for fastening the rail in the precast slab 2.
- the Fig. 3 shows a perspective view of the precast panel 2, on which the rail supports 6 are integrally formed.
- the rail supports 6 are provided with the openings 9 for the fastening dowels for fastening the rails.
- the reinforcing elements 7 ' can be seen, which are located below the prefabricated panel 2, in order to be embedded in the sub-cast layer, as in FIG Fig. 1 shown.
- the Fig. 4 shows a perspective view of the precast slab 2 obliquely from below, with the reinforcing elements 5 protrude at the bottom.
- the reinforcing elements 5 are V-shaped brackets, which are each paired and directed so that they record between their tips, the rod-shaped reinforcing elements 7 'and are welded to them. These reinforcing elements 7 'extend in the longitudinal direction of the precast slab 2.
- Fig. 5 the precast slab 2 is shown turned over lying, it is the position in which the precast slab is produced. This gives the top with the rail supports a clean and durable surface of the slab track.
- additional longitudinal bars 7 are provided, wherein the reinforcing elements 7', 7" at one end of the precast slab 2 protrude above this, so that a projecting portion 10 is formed.
- This section 10 serves to protrude below the next precast panel, so that the reinforcement in the in Fig. 1 Unterguss fell shown has no gap in the area between two prefabricated panels.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Railway Tracks (AREA)
Claims (10)
- Voie fixe pour véhicules ferroviaires, la voie fixe (1) étant sans ballast et se composant de plaques préfabriquées (2, 2') avec des joints (13) qui se trouvent entre celles-ci, et d'une sous-couche (3) disposée entre une couche porteuse (4) et les plaques préfabriquées (2, 2'), étant précisé qu'il est prévu des éléments d'armature (5) qui sont fixés dans les plaques préfabriquées (2, 2') et qui dépassent desdites plaques préfabriquées (2, 2') sur le côté inférieur de celles-ci,
caractérisée en ce que des éléments d'armature supplémentaires (7') qui s'étendent dans le sens longitudinal des plaques préfabriquées (2, 2') sont fixés aux éléments d'armature (5), en ce que les éléments d'armature (5) qui dépassent et les éléments d'armature (7') qui s'étendent dans le sens longitudinal sont encastrés dans la sous-couche (3), de sorte que ladite sous-couche (3) forme avec les plaques préfabriquées (2, 2') une plaque porteuse de la voie (1), en ce que les éléments d'armature supplémentaires qui s'étendent dans le sens longitudinal de la plaque préfabriquée (2, 2') sont des éléments d'armature en forme de barres (7') qui s'étendent au moins approximativement sur la longueur (L) de la plaque préfabriquée, en ce que les éléments d'armature (5) sont des pièces en V qui sont disposées par paires et qui sont dirigées de manière à recevoir entre leurs pointes les éléments d'armature en forme de barres (7'), et en ce que les éléments d'armature en forme de barres (7') dépassent de la plaque préfabriquée (2), à une extrémité de celle-ci, ce qui forme une section saillante (10) qui dépasse sous la plaque préfabriquée (2) suivante. - Voie selon la revendication 1,
caractérisée en ce qu'il est prévu, en plus des éléments d'armature en forme de barres (7'), des éléments d'armature (7), transversaux par rapport à ceux-ci, qui forment ensemble une grille d'armature (11). - Voie selon la revendication 1 ou 2,
caractérisée en ce qu'il est prévu, en supplément, des barres longitudinales (7") parallèles aux éléments d'armature (7'). - Voie selon la revendication 3,
caractérisée en ce que les barres longitudinales (7') dépassent de la plaque préfabriquée (2), à une extrémité de celle-ci, ce qui forme une section saillante (10) qui dépasse sous la plaque préfabriquée (2) suivante. - Voie selon l'une des revendications 1 à 4,
caractérisée en ce que des supports de rails (6) sont rapportés d'une seule pièce sur le côté supérieur des plaques préfabriquées (2, 2'). - Voie selon l'une des revendications 1 à 5,
caractérisée en ce que la longueur de la plaque préfabriquée (2, 2') est de 3,9 m à 5,2 m. - Voie selon l'une des revendications 1 à 6,
caractérisée en ce que la largeur de la plaque préfabriquée (2, 2') est de 2,4 m à 2,6 m. - Voie selon l'une des revendications 1 à 7,
caractérisée en ce que la sous-couche (3) se compose d'un béton auto-compactant. - Voie selon l'une des revendications 1 à 8,
caractérisée en ce que l'épaisseur (D) de la sous-couche (3) est de 15 cm à 20 cm. - Voie selon l'une des revendications 1 à 9,
caractérisée en ce que l'épaisseur (d) de la plaque préfabriquée (2, 2') est au maximum de 13 cm, de préférence de 7 cm à 10 cm.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012100892 | 2012-02-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2623670A2 EP2623670A2 (fr) | 2013-08-07 |
EP2623670A3 EP2623670A3 (fr) | 2015-09-02 |
EP2623670B1 true EP2623670B1 (fr) | 2018-01-03 |
Family
ID=47721952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13000562.2A Active EP2623670B1 (fr) | 2012-02-03 | 2013-02-04 | Voie sans ballast pour véhicules ferroviaires |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2623670B1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110066444A (zh) * | 2019-04-29 | 2019-07-30 | 中南大学 | 一种塑胶轨道板及其制备工艺 |
CN110593017A (zh) * | 2019-04-28 | 2019-12-20 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | 一种严寒地区高铁岔区道床混凝土开裂及粉化控制技术 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2845950B1 (fr) * | 2013-09-04 | 2018-02-14 | Prefarails Holding | Voie ferrée sans ballast |
CN103790083A (zh) * | 2014-02-26 | 2014-05-14 | 中铁五局(集团)有限公司 | 高速铁路板式无砟轨道自密实混凝土充填层施工工艺 |
CN104264533B (zh) * | 2014-08-07 | 2016-02-24 | 中铁二十三局集团轨道交通工程有限公司 | 一种双向先张预应力混凝土轨道板及其生产方法 |
CN105484113B (zh) * | 2015-12-30 | 2017-03-15 | 中铁十七局集团第二工程有限公司 | 一种预防双块式无砟轨道混凝土浇注时期轨排上浮的方法 |
CN108867201A (zh) * | 2018-08-04 | 2018-11-23 | 中铁二院工程集团有限责任公司 | 一种用于大坡度齿轨交通系统的无砟轨道构造 |
CN113089392B (zh) * | 2021-03-19 | 2022-02-01 | 中铁大桥科学研究院有限公司 | 一种轻型铁路轨道的施工方法 |
CN114000379A (zh) * | 2021-11-16 | 2022-02-01 | 中铁十二局集团有限公司 | Crtsⅰ双块式无砟轨道道床板混凝土施工方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008001438A1 (de) * | 2008-04-28 | 2009-10-29 | Ed. Züblin Ag | Feste Fahrbahn mit (Schein-)Fugen auf Erdkörper |
CN201648876U (zh) * | 2010-04-08 | 2010-11-24 | 中铁二院工程集团有限责任公司 | 一种无砟轨道构造 |
-
2013
- 2013-02-04 EP EP13000562.2A patent/EP2623670B1/fr active Active
Non-Patent Citations (1)
Title |
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None * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110593017A (zh) * | 2019-04-28 | 2019-12-20 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | 一种严寒地区高铁岔区道床混凝土开裂及粉化控制技术 |
CN110066444A (zh) * | 2019-04-29 | 2019-07-30 | 中南大学 | 一种塑胶轨道板及其制备工艺 |
Also Published As
Publication number | Publication date |
---|---|
EP2623670A2 (fr) | 2013-08-07 |
EP2623670A3 (fr) | 2015-09-02 |
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