EP3067464A1 - Schienenbahn auf längsträgern, und entsprechendes erstellungsverfahren - Google Patents

Schienenbahn auf längsträgern, und entsprechendes erstellungsverfahren Download PDF

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Publication number
EP3067464A1
EP3067464A1 EP16305252.5A EP16305252A EP3067464A1 EP 3067464 A1 EP3067464 A1 EP 3067464A1 EP 16305252 A EP16305252 A EP 16305252A EP 3067464 A1 EP3067464 A1 EP 3067464A1
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EP
European Patent Office
Prior art keywords
rails
layer
seat
aggregates
bituminous
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
EP16305252.5A
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English (en)
French (fr)
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EP3067464B1 (de
Inventor
Jacques MALOD PANISSET
Vincent VIALLET
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.)
Colas Rail SAS
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Colas Rail SAS
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Publication of EP3067464A1 publication Critical patent/EP3067464A1/de
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Publication of EP3067464B1 publication Critical patent/EP3067464B1/de
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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
    • 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
    • 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

Definitions

  • the present invention relates to a railway on longitudinal rails and a method for producing it. It has applications in the field of civil engineering and the construction or rehabilitation of railways for rail traffic or even trams or subways.
  • ballasted tracks can be classified into two broad categories: ballasted and non-ballasted.
  • the alternative to the ballasted track is the slab track for which the ballast is replaced by base layers consisting of concrete slabs or asphalt.
  • Slab railways are interesting because of their greater structural stability and longer life cycle. Concrete slab railways, however, suffer from certain drawbacks: higher construction costs, particularly when the site has a low lift capacity, a high railroad thickness close to the ballast, high sensitivity to construction defects (water drainage and earthworks must be perfect, with the risk of deteriorating the concrete more quickly), longer construction time with very high curing time for cast-in-place slabs, more demanding sizing depending on capacity It is more noisy compared to ballast tracks and, finally, it leads to very high CO 2 emissions due to the use of concrete.
  • bituminous mixes in the superstructure or in the sub-ballast layer meets the modern requirements of railways.
  • the composition of the mix By varying the composition of the mix, the ratio of the various constituents as well as the size distribution of the granular particles, the properties of the final mixture can be adapted according to the specific needs of the construction.
  • the production of bituminous mixes takes place in mobile or static plants which are now well controlled.
  • railways are known equipment that may for some have been made for many years with, at the time, constraints that have nothing to do with those of our present day. This is particularly the case for subways / tunnels or railway passages under bridge type structures.
  • the solution proposed here focuses on reducing the height / thickness of the railway itself and taking into account the particular environment of the underground (temperature, hydrometry, ).
  • the proposed solution also allows better durability and supported loads, which reduces maintenance.
  • the invention can however be applied to other areas, tracks under bridges or even free paths.
  • the invention relates to a railway comprising a pair of running rails parallel to each other in a longitudinal direction and fixed on supports, the supports resting on a seat extended under the track and arranged on a platform.
  • the supports provide continuous support for the rails and are formed of elongate longitudinal sills, placed end to end and arranged under each of the rails, the seat comprises at least one layer of bituminous aggregates, and each of the rails rests by its skid on the sills with the interposition of a damping midsole, the rails being fixed to the sills, the sills being glued by a polymerizable synthetic resin on said at least one layer of bituminous aggregates of the seat .
  • the invention also relates to a method for producing a railroad track, the railroad extending along the length and comprising a pair of running rails parallel to each other and resting on supports, the supports resting on a seat extended under the track and arranged on a platform.
  • said method after at least installation of the stringers and their bonding, it spreads further surface of the top layer of bituminous aggregates armed a surface layer of bituminous aggregates, said surface layer of bituminous aggregates is preferably armed.
  • anchors are further anchored to the seat by anchoring means, said anchoring means being caused to pass through the longitudinal members and at least a portion of the seat.
  • the track 1 of the invention is ballastless and has a multilayer structure with a layer stiffness which decreases from top to bottom, the bottom layer further providing protection against freezing.
  • the rails 7 of the track have a continuous support on longitudinal longitudinal rails 6 of cement-based concrete, the stringers may include an overflowing reinforcement 14. This continuous support makes it possible to improve the transmission of the forces by decreasing the load peaks through the different layers. This continuous support also reduces fatigue in the rail and thus increases the life of the rail.
  • These different layers are laid on a platform 2 of minimum resistance at 120 MPa.
  • the reinforcement with a conventional armament or "METALFLEX®” can be omitted.
  • Cladding layers consisting of either a modified bitumen-elastomer emulsion or a pure bitumen emulsion may furthermore be used on the platform and / or between the layers of the seat to improve hanging.
  • the lower 3 and upper 4 layers form a seat for the layer consisting of longitudinal stringers 6.
  • Bituminous aggregates are typically bituminized hot mixes.
  • the lower layer 3 of bituminous aggregates is unarmed and comprises materials having a larger particle size than that of the upper layer 4 which is itself reinforced. It is also possible to use a / plant binders in bituminous aggregates.
  • METALFLEX® is a generally modified bituminous mix composite and a three-dimensional honeycomb structural steel reinforcement.
  • the METALFLEX® process makes it possible to obtain a material composed of reinforced and confined mixes with exceptionally high resistance to rutting and cracking. If necessary, the details of this process can be found in the French patent applications FR88 / 16265 and FR99 / 12968 .
  • the three-dimensional frame has honeycomb honeycomb structure. It is made from strips or sheets of steel. Fixing the reinforcement on the lower layer can be considered and it is then carried out with special jumpers, steel, nailed ("spitted") in the support.
  • bituminous aggregates of the layers have a relatively high stiffness and good resistance to tensile forces and vertical deformation.
  • the impermeability of bituminous aggregate layers prevents the infiltration of rain or runoff and the deleterious effects of extreme thermal changes (freezing and thawing). This impermeability also prevents vertical hydraulic transport of sludge and fine particles. Because of the high mechanical moduli of the bituminous aggregate layers, a reduction in tensile and shear stresses is achieved inside the track. The track then undergoes less fatigue, less wear and therefore requires less maintenance. Cracks are less likely to appear. The necessary corrections in the position of the track, especially following the settlement of an embankment, can be quickly and easily performed.
  • bituminous aggregates lead to a reduction of vibrations and noise as the trains pass.
  • the use of polymer modified bitumen, and / or rubber or the like, for bituminous aggregates can further enhance the effect. amortization.
  • the load can be put on the asphalt almost immediately after cooling, the construction time of the track is thus shorter than in other methods of construction, especially those on slab.
  • the platform 2 may be a prepared floor or a raft, the latter case in particular in a tunnel implementation.
  • an anti-vibratile mat is installed between the platform and the seat.
  • a surface layer 5 of bituminous aggregates is additionally added to the surface of the reinforced / reinforced top layer 4, on either side of the two rails 7 and the stringers 6 of the track 1.
  • This surface layer 5 can also be reinforced / reinforced and in this case in the same way as that of the upper layer 4.
  • the surface layer 5 may be, alternatively, another composite material. The upper face of the surface layer 5 is brought to the level of the upper face of the sill.
  • This surface layer 5 reinforces the lateral support of the longitudinal members 6 in addition to the fixing by the resin 12 and the inking of the longitudinal members 6 in the seat 3, 4 by anchoring means 13 passing through the longitudinal members and the seat. Because of their positions along the longitudinal members, the anchoring means also pass through the bonding resin layer 12 as visible on the Figures 7 and 8 .
  • the stringers are therefore anchored in the bituminous aggregate base and for this purpose, the use of tapered screws for anchoring makes it possible to avoid the shearing work of the polymerized bonding resin 12.
  • the surface layer also allows drainage which is provided by the achievement of slopes on the profile of the channel leading the water in gutters or channels 9. The drained water is removed by means of manholes placed regularly in the axis of the track.
  • This superficial layer 5 which provides the surface finish of the track is particularly useful in urban or quay zone and / or to allow the rolling of motor vehicles with pneumatic wheels.
  • the bituminous aggregates of the base 3, 4 and of the optional surface layer 5 may be laterally confined by confinement means in order to prevent any creep of the materials.
  • the confinement means may correspond for at least a portion of them to the piers of the tunnels.
  • the stringers are straight elongated elements and the two longitudinal ends of each sill can be flat, perpendicular to the main direction of the sill, or have a contoured shape.
  • the flat shape of the ends of sill is preferably used for the parts of lanes in alignment (straight) because, in the curves, because of the angular offset between two successive lanyards, a corner opening is created at the junction between the two successive stringers.
  • the stringers 6 comprise a universal table for receiving and fixing the rail.
  • This universal table may for example be of a type that allows the use of three types of compatible fasteners and any type of flat shoe rails.
  • a rail of lower height is used than the rails conventionally used because of the advantage of the continuous support which does not impose a large vertical inertia module.
  • the stringers 6 are prefabricated concrete modules with high performance type DUCTAL® or composite material cast or extruded or a conventional concrete with metal reinforcements. They are armed or unarmed, fibered or non-fiberized.
  • the sills have shapes and sizes that can be adapted to the needs: in particular in length in order to take into account the curves and the alignments on the two rows of rails, to allow a continuous support of the rail, to integrate a universal table, to ensure the geometric adjustment of the lane before fixing by gluing, allow the pouring of the fixing resin through tapping holes 11 and vents through the sill, to ensure the integrity of the sill during handling and allow handling with means light.
  • the bonding resin 12 allows a perfect and lasting bond between the layer of reinforced / reinforced bituminous aggregates of the upper layer 4 and the concrete of the sill 6.
  • a superficial milling of the upper layer 4 of the seat is made in the landing zone of the longitudinal members. This milling makes it possible to expose the aggregates of the upper layer.
  • the gluing of the stringers to the seat takes place only after the installation and the fixing of the rails on the stringers in order to benefit from the inertia of the rail to obtain a leveling of high quality during the adjustment of the way.
  • bridle struts provisionally to allow a parallel installation, two by two, stringers and thus facilitate the precise adjustment of the gauge of the rails of the track.
  • a partial transparency diagram of the reinforced concrete version with a reinforcement 14, 15 of the sill the transparency showing the arrangement of irons 14, 15 in the sill.
  • These irons are of two major types: longitudinal irons 15 current along the length of the sill and confined inside the sill and transverse irons 14 projecting from both sides / longitudinal inner and outer to the sill track. The protruding parts of the transverse irons 14 are intended to be taken in the surface layer 5.
  • Figure 5 and 6 what can be considered as a simplified diagram of the sturgeon Figure 4 simplified because the irons 14, 15 are not represented, either of a version of sill in a material not reinforced with irons.
  • Figures 8, 10 cuts through the sills can be considered according to these two points of view: either armed sills but with irons not made visible, or in a non-reinforced material.
  • the generally rectangular elongated sill 6 is in truncated wedge-shaped cross-section, its lateral side exterior to the track being higher than its lateral side interior to the track. Its upper face comprises a table for receiving and fixing the rail and its underside is intended to be bonded by resin 12 to the upper layer 4.
  • the sill 6 comprises tapholes 11 for the passage of the uncured resin, these holes can also be used for degassing.
  • Anchoring means 13 are pre-mounted on the longitudinal members 6 as rail fasteners 8. The pre-assembly of these accessories may concern all or part of said accessories, for example conical screws whose shape is adapted to facilitate installation and allow anchoring 13 may be installed later in pre-mounted inserts.
  • the rail fasteners 8 preferably comprise and as shown Figure 5 a horizontal connection plate between two vertical threaded rods located on either side of the rail.
  • the way of the invention can be used with conventional rails of the UIC 60 type or with other types of rail and for example low rails and grooved rails.
  • the realization of the way of the invention involves road construction methods as well as prefabricated elements in the factory, including sills which can be more or less pre-equipped with universal fastening means of rail fasteners. These prefabricated elements are designed so that they can be handled and laid easily. The dimensions and masses of these prefabricated elements are at most about 6 meters long and 300 kg.
EP16305252.5A 2015-03-13 2016-03-07 Schienenbahn auf längsträgern, herstellungsverfahren Active EP3067464B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1500489A FR3033578A1 (fr) 2015-03-13 2015-03-13 Voie ferree sur longrines longitudinales, procede de realisation

Publications (2)

Publication Number Publication Date
EP3067464A1 true EP3067464A1 (de) 2016-09-14
EP3067464B1 EP3067464B1 (de) 2017-06-14

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EP16305252.5A Active EP3067464B1 (de) 2015-03-13 2016-03-07 Schienenbahn auf längsträgern, herstellungsverfahren

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EP (1) EP3067464B1 (de)
FR (1) FR3033578A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018145169A1 (en) * 2017-02-13 2018-08-16 Mercury Rail Pty Ltd Railway track support system, components thereof and construction method
CN110616597A (zh) * 2019-10-24 2019-12-27 成都天府轨谷科技有限公司 Crtsⅳ型轨道板及制作方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0219811A1 (de) * 1985-10-17 1987-04-29 Diether Dipl.-Ing. Uderstädt Schienenunterbau
EP0675226A1 (de) * 1994-03-29 1995-10-04 Railway Technical Research Institute Leiterförmige Schwellen und Gleisanlage
FR2799769A1 (fr) * 1999-10-18 2001-04-20 Screg Procede de confinement d'enrobes bitumeux au voisinage d'un rail et dispositif pour sa mise en oeuvre
EP1908881A1 (de) * 2006-10-03 2008-04-09 edilon)(sedra B.V. Elastische Schienenstützblockanordnung
EP2666907A1 (de) * 2012-05-23 2013-11-27 Colas Rail Eisenbahnstrecke mit Schwellen auf einer durchgehenden Betonplatte und entsprechendes Herstellungsverfahren
US20140203094A1 (en) * 2011-08-31 2014-07-24 Railway Engineering Research Institute of China Academy of Railway Sciences Ballastless track system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0219811A1 (de) * 1985-10-17 1987-04-29 Diether Dipl.-Ing. Uderstädt Schienenunterbau
EP0675226A1 (de) * 1994-03-29 1995-10-04 Railway Technical Research Institute Leiterförmige Schwellen und Gleisanlage
FR2799769A1 (fr) * 1999-10-18 2001-04-20 Screg Procede de confinement d'enrobes bitumeux au voisinage d'un rail et dispositif pour sa mise en oeuvre
EP1908881A1 (de) * 2006-10-03 2008-04-09 edilon)(sedra B.V. Elastische Schienenstützblockanordnung
US20140203094A1 (en) * 2011-08-31 2014-07-24 Railway Engineering Research Institute of China Academy of Railway Sciences Ballastless track system
EP2666907A1 (de) * 2012-05-23 2013-11-27 Colas Rail Eisenbahnstrecke mit Schwellen auf einer durchgehenden Betonplatte und entsprechendes Herstellungsverfahren

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018145169A1 (en) * 2017-02-13 2018-08-16 Mercury Rail Pty Ltd Railway track support system, components thereof and construction method
CN110616597A (zh) * 2019-10-24 2019-12-27 成都天府轨谷科技有限公司 Crtsⅳ型轨道板及制作方法

Also Published As

Publication number Publication date
EP3067464B1 (de) 2017-06-14
FR3033578A1 (fr) 2016-09-16

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