EP2907920A1 - Method and device for compacting and cleaning the ballast of a railway track - Google Patents

Method and device for compacting and cleaning the ballast of a railway track Download PDF

Info

Publication number
EP2907920A1
EP2907920A1 EP15154956.5A EP15154956A EP2907920A1 EP 2907920 A1 EP2907920 A1 EP 2907920A1 EP 15154956 A EP15154956 A EP 15154956A EP 2907920 A1 EP2907920 A1 EP 2907920A1
Authority
EP
European Patent Office
Prior art keywords
ballast
layer
tool
ballasted
pollution particles
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
EP15154956.5A
Other languages
German (de)
French (fr)
Other versions
EP2907920B1 (en
Inventor
Roland GOURVES
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.)
Sol Solution SAS
Original Assignee
Sol Solution SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sol Solution SAS filed Critical Sol Solution SAS
Publication of EP2907920A1 publication Critical patent/EP2907920A1/en
Application granted granted Critical
Publication of EP2907920B1 publication Critical patent/EP2907920B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/06—Renewing or cleaning the ballast in situ, with or without concurrent work on the track
    • E01B27/10—Renewing or cleaning the ballast in situ, with or without concurrent work on the track without taking-up track
    • E01B27/102—Removing unwanted material without removing the ballast
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/04—Cleaning or reconditioning ballast or ground beneath
    • E01B2203/042—Cleaning or reconditioning ballast or ground beneath in situ,e.g. vacuum-cleaners
    • 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
    • E01B2204/16—Specific granulometry of the ballast

Definitions

  • the present invention relates to a method and a device for treating a railway.
  • the invention is concerned with railway tracks of the type comprising, from the bottom upwards, an underlayer, a ballasted layer which covers the underlayer, sleepers which rest on the ballasted layer, and rails of rolling of railway vehicles, which are supported by the sleepers to which the rails are attached.
  • the ballasted layer has the function of transmitting to the underlayer and the underlying ground the forces generated by the passage of the trains, without the sub-layer being deformed by compression.
  • the role of this ballast layer is also to embed the sleepers in order to have a resistance to the longitudinal deformation of the rails.
  • the ballasted layer is, when it is set up for the construction of a new railway, made of ballast granules, commonly called ballast, whose desired mechanical properties are based on a homogeneous particle size, typically varying from 10 mm to 50 mm.
  • the ballast wears with the traffic. More specifically, the ballast gradually tends to be polluted by fine particles, that is to say particles whose particle size is smaller than that desired for ballast aggregates. These fine particles may be due to particulate backflows from the underlayer and / or abrasion of the ballast aggregates. Whatever the cause, these particles of pollution tend to accumulate in the ballast layer, clogging the residual spaces between the ballast aggregates, which affects the mechanical properties of the ballast layer.
  • FR-A-971,180 which can be considered as the state of the art closest to the invention, proposed to suck pollution particles, such as fines, directly into the ballasted layer, using a tool ad In operation, this tool is driven into the thickness of the ballasted layer and applies an air depression such that the particles of pollution are, by suction, separated from the ballast granules, which themselves remain in the layer. ballasted.
  • FR-A-971,180 even proposes to keep this tool in vibration while it sucks and that it is moved in the ballasted layer so that the vibration applied to the tool is transmitted to the aggregates the most and contributes to the take-off of pollution particles.
  • the ballast layer thus cleaned up may have insufficient mechanical strength due to the residual voids between the aggregates, resulting, on the one hand, from the suction of the pollution particles and on the other hand, the relative spacing of the aggregates imposed by the displacement between them of the tool, tapered for this purpose.
  • the aim of the present invention is to propose a treatment of a railroad which makes it possible, at a lower cost, to extend the service life of the ballast of this railway while guaranteeing the mechanical properties thereof.
  • the subject of the invention is a method of treating a railway, as defined in claim 1.
  • the subject of the invention is also a device for treating a railway, as defined in claim 6.
  • One of the basic ideas of the invention is to seek to separate the particles of pollution ballast granules in situ, that is to say directly within the railway to be treated, without having to excavate the ballasted layer polluted.
  • the pollution particles are sucked directly into the ballasted layer, by means of the use of an ad hoc tool which is designed to be pressed into the thickness of the layer at the same time. ballasted and to apply, in this thickness of the ballasted layer, an air depression such that the pollution particles are separated from the ballast granules, which themselves remain in the ballasted layer.
  • the pollution particles thus sucked are discharged outside the ballasted layer, via the tool.
  • the aforementioned air depression requires connecting the suction duct, formed by the tool, to a vacuum source, typically a pump.
  • the ballasted layer thus cleaned by suction is "recompacted" thanks to the tool, that is to say mechanically processed by this tool so that, by clamping and vibration, the ballast granules, freed from the interstitial pollution particles, rearranged with respect to one another so as to imbricate each other in order to give the ballasted layer cleared of the desired mechanical properties, close to those of the ballast deposited at the construction of the track railway.
  • Such a treatment according to the invention thus combining in the same tool the dual function of suction and compaction by clamping and vibration, can advantageously be achieved by a tamper modified according to the invention, that is to say a tamper integrating the aspiration function of the pollution particles.
  • a tamper modified according to the invention that is to say a tamper integrating the aspiration function of the pollution particles.
  • the inventors have found that the pollution particles have a systematic tendency to accumulate at the same time, at the base of the ballasted layer, that is to say near the sub-layer of the railway, and under the crossbeams of the sleepers, more generally under the ends of the crosspieces where are fixed the rails.
  • the aspiration of the pollution particles and the compaction of the ballast granules according to the invention can advantageously be targeted in the regions where these particles accumulate.
  • the railway comprises an underlayer 2, which covers the ground S and which itself is covered with a ballasted layer 3 of the railway track 1.
  • This railway also comprises rails 4, on which railway vehicles drive and which are fixed, by any appropriate means, to sleepers 5 placed across the railway line 1, under the rails 4, to maintain the spacing and the inclination of these rails.
  • the sleepers 5 rest directly on the ballast layer 3, to which the sleepers transmit the loads of the railway vehicles traveling on the rails 4.
  • the ballasted layer 3 transmits, for its part, the forces generated by the passage of the railway vehicles to the undercarriage. layer 2 and soil S, without the latter being deformed by packing.
  • the ballasted layer 3 is also designed to embed the sleepers 5 to ensure resistance to longitudinal deformations of the rails 4.
  • the ballasted layer 3 includes, at the same time, granules of ballast 3A, typically crushed stone, whose particle size is predetermined and varies between 10 mm and 50 mm, and fine particles 3B, whose size is smaller than that of the ballast aggregates and which, therefore, pollutes the ballast granules 3A by altering the mechanical characteristics of the ballasted layer 3.
  • the origin of these pollution particles 3B is various and not limiting of the present invention: in all cases, the presence of these particles 3B increases over time, as and when rail traffic on the railway so that, in the long run, these pollution particles 3B clog the interstitial spaces between the ballast granules 3A.
  • the ballasted layer 3 is more polluted, that is to say has a higher concentration of pollution particles 3B, both at the base of the ballasted layer 3, in other words in the vicinity of the underlayer 2, and under the crosspieces 5, more precisely under the opposite ends of these sleepers, typically under the blokets of the sleepers 5 when the latter are provided.
  • the presence of these more polluted regions of the ballasted layer 3 could be explained by, on the one hand, the effect of the vibrations transmitted to the ballasted layer 3 during the passage of railway gear on the rails 4 and the effect of the leaching by rain and, secondly, the application of the maximum stresses by the sleepers 5 on the ballasted layer 3.
  • a railway work machine 10 is also shown for processing the railway line 1. In the embodiment considered here, this machine 10 is able to roll on the rails 4 of the railway line 1.
  • the machine 10 is equipped, in two copies in the example of realization considered on the figure 1 , a tool 12 for processing the ballasted layer 3, an embodiment of this tool 12 being shown in FIG. figure 2 .
  • This tool 12 comprises an elongate body 14 which, in use, extends in length substantially vertically and is pressed inside the ballasted layer 3, in other words in the thickness of this layer 3.
  • the body 14 includes a top portion 16 whose outer face is substantially frustoconical and converging downwards.
  • This body 14 also includes a lower part 18 made in the form of a stuffing bat which is intended to be driven into the ballasted layer 3, then used in this ballast layer 3 to compact the ballast granules 3A by clamping and vibration.
  • the body 14 generally has an outer face whose geometry makes it possible, inter alia, to facilitate the insertion of this body 14 into the ballasted layer 3, in particular until positioning the lower part 18 near the underlayer 2 .
  • the body 14, more specifically its part 18 forming a stuffing bat delimits at least one through orifice 20, which connects the outer face of this body to a free volume which is delimited inside the body 14 in the form of a duct 22 extending substantially in the longitudinal direction of the body 14.
  • a single orifice 20 is provided, delimited by the lower part 18 of the body 14.
  • the number and the arrangement of this or these orifices 20 may vary, as variants not shown.
  • the upper part 16 may be provided with one or more of these orifices, where appropriate regularly distributed around this upper part 16.
  • each main face of the part 18 forming a stuffing pad may be provided with one or more of these orifices.
  • the or each of these orifices 20 connects the outside of the body 14 to the inner conduit 22, this inner conduit connecting, through the interior of the body 14, the orifice or the various orifices 20 to an upper terminal orifice 24 located at the upper end of the body 14.
  • the railway working machine 10 is also equipped with a suction pump 26 whose suction inlet is connected to the orifice 24 of the body 14 of each of the processing tools 12, by means of fluid connection means. ad hoc 26.
  • the fluidic connection means 28 also constitute means of mechanical connection between the corresponding processing tool 12 and the rest of the railway work machine 10, in particular in order to manipulate this processing tool by a motorized assistance system.
  • the embodiment of these fluidic connection and mechanical connection means 28 is not limiting of the invention.
  • the aforementioned suction pump 26 has various embodiments, in the sense that, more generally, it corresponds to a source of vacuum, able to create an air vacuum, communicated to the orifice 24 of the duct 22 of each treatment tool 12 by the aforementioned means 28.
  • each of the orifices 20 is provided with a screen 30 designed to separate the ballast granules 3A with respect to the pollution particles 3B of the ballasted layer 3, depending on their particle size: to do this, each sieve 30 has a mesh sized to both pass through the pollution particles 3B and retain the ballast granules 3A.
  • each of the processing tools 12 is pushed inside the ballasted layer 3, substantially vertically, the body 14 then extending across the thickness of the ballasted layer 3, as shown schematically on the figure 1 .
  • an air vacuum is applied to the orifice 24 of the duct 22 of each of the tools 12, causing a suction inside the duct 22.
  • an air vacuum is communicated to each of the orifices 20: the latter being in contact with the ballasted layer 3, this depression is communicated to the spaces between the ballast granules 3A, in other words to the spaces likely to contain the particles of pollution 3B.
  • the aspiration of the pollution particles 3B is accompanied and / or followed by a compaction of the ballasted layer 3, this compaction being implemented by clamping and vibration.
  • Such compaction which consists in rearranging, by approximation, the relative arrangement between the ballast granules 3A, freed at least partly of the pollution particles 3B, is achieved by the processing tools 12, each of them forming, in a way, a tamper incorporating a suction function.
  • these ballast granules 3A, between which the aspiration of the pollution particles 3B leaves residual voids then interlock into each other to form a more compact assembly, by reinforcing the mechanical properties, in particular the resistance , of the ballasted layer 3 depolluted.
  • the rearrangement of the ballast granules 3A is capable of releasing pollution particles. 3B which otherwise would have remained stuck between some of the ballast granules, which therefore makes it possible to increase the amount of pollution particles sucked.
  • the use of the treatment tools 12 for both sucking the pollution particles 3B and, concomitantly and / or successively, recompacting the ballast granules 3A depolluted is compatible with the simultaneous use of a pre-existing tamper: in in this case, only a part of the compaction of the ballast aggregates results from the action of the processing tools 12, the rest of the compaction resulting from the action of the pre-existing tamper.
  • each treatment tool 12 is depressed. in the aforementioned regions of the ballasted layer 3 so as to effectively suck a large amount of pollution particles 3B present in the treated layer 3. More specifically, at least one of the treatment tools 12 is driven into the ballasted layer 3 so that at least part of its body 14, in particular the lower part 18, is in the immediate vicinity of the underlayer 2: this way, this tool 12 sucks up the pollution particles 3B located closer to this sublayer 2 than the opposite free surface of the ballasted layer 3.
  • Another possibility which can also be combined with what comes from be described, consists in driving at least one of the processing tools 12 near one of the longitudinal ends of one of the crosspieces 5, so that at least a portion of the body 14 of this tool, in particular its upper part 16, either in contact with the region of the ballasted layer 3, situated just below the aforementioned end of the crossbar: in this way, the pollution particles 3B present in the aforementioned region of the ballasted layer 3 are sucked by this tool 12.
  • the railway 1 are possible.
  • the processing device including the processing tools 12, the suction pump 26 and the fluidic connection and mechanical connection means 28, is embarked on a mobile railway work machine, such as the machine 10 at the figure 1
  • this treatment device can be installed along a railway track to be treated, especially if it is waived that this treatment device can, by itself, recompact the ballast granules 3A vacuum-cleaned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

L'invention vise à traiter une voie ferrée (1) incluant une couche ballastée (3), qui recouvre une sous-couche (2), sur laquelle reposent des traverses (5) de support de rails (4) et qui inclut à la fois des granulats de ballast (3A) et des particules de pollution (3B) plus fines que les granulats de ballast. Afin de prolonger à moindre coût la durée de vie du ballast de la voie ferrée, tout en en garantissant les propriétés mécaniques, le procédé conforme à l'invention prévoit d'enfoncer un outil (12) dans la couche ballastée (3), par l'intermédiaire de cet outil, d'aspirer au moins une partie des particules de pollution (3B) de manière à les retirer des granulats de ballast (3A), et après et/ou pendant l'aspiration des particules de pollution, de compacter les granulats de ballast par serrage et vibration en utilisant cet outil (12).

Figure imgaf001
The invention aims to treat a railway (1) including a ballasted layer (3), which covers an underlayer (2), on which rest rails (5) of rail support (4) and which includes at the both ballast aggregates (3A) and pollution particles (3B) finer than ballast aggregates. In order to prolong the service life of the railway ballast at a lower cost, while guaranteeing the mechanical properties thereof, the method according to the invention provides for driving a tool (12) into the ballast layer (3), through by means of this tool, sucking at least a part of the pollution particles (3B) so as to remove them from the ballast granules (3A), and after and / or during the suction of the particles of pollution, to compact ballast aggregates by clamping and vibrating using this tool (12).
Figure imgaf001

Description

La présente invention concerne un procédé et un dispositif de traitement d'une voie ferrée.The present invention relates to a method and a device for treating a railway.

L'invention s'intéresse aux voies de chemin de fer, du type comprenant, de bas en haut, une sous-couche, une couche ballastée qui recouvre la sous-couche, des traverses qui reposent sur la couche ballastée, et des rails de roulement de véhicules ferroviaires, qui sont supportés par les traverses auxquelles les rails sont fixés. La couche ballastée a pour fonction de transmettre à la sous-couche et au sol sous-jacent les efforts engendrés par le passage des trains, sans que la sous-couche ne se déforme par tassement. Le rôle de cette couche ballastée est aussi d'enchâsser les traverses afin d'avoir une résistance à la déformation longitudinale des rails. A cette fin, la couche ballastée est, lorsqu'elle est mise en place à la construction d'une nouvelle voie ferrée, constituée de granulats de ballast, couramment appelés le ballast, dont les propriétés mécaniques recherchées reposent sur une granulométrie homogène, variant typiquement de 10 mm à 50 mm.The invention is concerned with railway tracks of the type comprising, from the bottom upwards, an underlayer, a ballasted layer which covers the underlayer, sleepers which rest on the ballasted layer, and rails of rolling of railway vehicles, which are supported by the sleepers to which the rails are attached. The ballasted layer has the function of transmitting to the underlayer and the underlying ground the forces generated by the passage of the trains, without the sub-layer being deformed by compression. The role of this ballast layer is also to embed the sleepers in order to have a resistance to the longitudinal deformation of the rails. To this end, the ballasted layer is, when it is set up for the construction of a new railway, made of ballast granules, commonly called ballast, whose desired mechanical properties are based on a homogeneous particle size, typically varying from 10 mm to 50 mm.

Ceci étant rappelé, il est connu que le ballast s'use avec le trafic. Plus précisément, le ballast tend progressivement à être pollué par des particules fines, c'est-à-dire des particules dont la granulométrie est plus petite que celle voulue pour les granulats de ballast. Ces particules fines peuvent être dues à des remontées particulaires provenant de la sous-couche et/ou à l'abrasion des granulats de ballast. Quelle qu'en soit la cause, ces particules de pollution tendent à s'accumuler dans la couche ballastée, en colmatant les espaces résiduels entre les granulats de ballast, ce qui nuit aux propriétés mécaniques de la couche ballastée.This being recalled, it is known that the ballast wears with the traffic. More specifically, the ballast gradually tends to be polluted by fine particles, that is to say particles whose particle size is smaller than that desired for ballast aggregates. These fine particles may be due to particulate backflows from the underlayer and / or abrasion of the ballast aggregates. Whatever the cause, these particles of pollution tend to accumulate in the ballast layer, clogging the residual spaces between the ballast aggregates, which affects the mechanical properties of the ballast layer.

Actuellement, pour remédier à cette problématique, il est connu de renouveler le ballast pollué. Ce renouvellement est soit total, lors du renouvellement intégral de la voie ferrée, soit partiel, dans le sens où tout ou partie de la couche ballastée est retirée du reste de la voie ferrée pour être tamisée afin d'en récupérer les granulats de ballast dépollués et de les réemployer pour la voie ferrée concernée ou pour une autre voie ferrée. Dans tous les cas, ces opérations de renouvellement sont coûteuses et complexes à mettre en oeuvre.Currently, to remedy this problem, it is known to renew polluted ballast. This renewal is either total, when the entire renewal of the railway, or partial, in the sense that all or part of the ballasted layer is removed from the rest of the railway to be sieved to recover the cleaned ballast granules and to reuse them for the railway concerned or for another railway. In all cases, these renewal operations are expensive and complex to implement.

Par le passé, FR-A-971 180 , qui peut être considéré comme l'état de la technique le plus proche de l'invention, a proposé d'aspirer des particules de pollution, telles que des fines, directement dans la couche ballastée, à l'aide d'un outil ad hoc : en service, cet outil est enfoncé dans l'épaisseur de la couche ballastée et y applique une dépression d'air telle que les particules de pollution sont, par aspiration, séparées des granulats de ballast, qui, eux, restent dans la couche ballastée. FR-A-971 180 propose même de maintenir cet outil en vibration pendant qu'il aspire et qu'il est déplacé dans la couche ballastée afin que la vibration appliquée à l'outil soit transmise aux granulats les plus proches et qu'elle contribue au décollage des particules de pollution. Cependant, les performances de dépollution correspondantes restent limitées et, surtout, la couche ballastée ainsi dépolluée risque de présenter une résistance mécanique insuffisante du fait des vides résiduels entre les granulats, résultant, d'une part, de l'aspiration des particules de pollution et, d'autre part, de l'écartement relatif des granulats imposé par le déplacement entre eux de l'outil, effilé à cet effet.In the past, FR-A-971,180 , which can be considered as the state of the art closest to the invention, proposed to suck pollution particles, such as fines, directly into the ballasted layer, using a tool ad In operation, this tool is driven into the thickness of the ballasted layer and applies an air depression such that the particles of pollution are, by suction, separated from the ballast granules, which themselves remain in the layer. ballasted. FR-A-971,180 even proposes to keep this tool in vibration while it sucks and that it is moved in the ballasted layer so that the vibration applied to the tool is transmitted to the aggregates the most and contributes to the take-off of pollution particles. However, the corresponding depollution performance remains limited and, above all, the ballast layer thus cleaned up may have insufficient mechanical strength due to the residual voids between the aggregates, resulting, on the one hand, from the suction of the pollution particles and on the other hand, the relative spacing of the aggregates imposed by the displacement between them of the tool, tapered for this purpose.

Le but de la présente invention est de proposer un traitement d'une voie ferrée, qui permet à moindre coût de prolonger la durée de vie du ballast de cette voie ferrée, tout en en garantissant les propriétés mécaniques.The aim of the present invention is to propose a treatment of a railroad which makes it possible, at a lower cost, to extend the service life of the ballast of this railway while guaranteeing the mechanical properties thereof.

A cet effet, l'invention a pour objet un procédé de traitement d'une voie ferrée, tel que défini à la revendication 1.For this purpose, the subject of the invention is a method of treating a railway, as defined in claim 1.

L'invention a également pour objet un dispositif de traitement d'une voie ferrée, tel que défini à la revendication 6.The subject of the invention is also a device for treating a railway, as defined in claim 6.

Une des idées à la base de l'invention est de chercher à séparer les particules de pollution des granulats de ballast in situ, c'est-à-dire directement au sein de la voie ferrée à traiter, sans avoir à excaver la couche ballastée polluée. Pour ce faire, conformément à l'invention, on aspire les particules de pollution directement dans la couche ballastée, moyennant l'utilisation d'un outil ad hoc qui est conçu pour, à la fois, être enfoncé dans l'épaisseur de la couche ballastée et pour appliquer, dans cette épaisseur de la couche ballastée, une dépression d'air telle que les particules de pollution sont séparées des granulats de ballast, qui, eux, restent dans la couche ballastée. Les particules de pollution ainsi aspirées sont évacuées à l'extérieur de la couche ballastée, par l'intermédiaire de l'outil. Bien entendu, la dépression d'air précitée nécessite de raccorder le conduit d'aspiration, formé par l'outil, à une source de vide, typiquement une pompe. En outre, selon l'invention, la couche ballastée ainsi dépolluée par aspiration est « recompactée » grâce à l'outil, c'est-à-dire traitée mécaniquement par cet outil pour que, par serrage et vibration, les granulats de ballast, débarrassés des particules de pollution interstitielles, se réarrangent les uns par rapport aux autres de manière à s'imbriquer les uns dans les autres pour conférer à la couche ballastée dépolluée des propriétés mécaniques souhaitées, proches de celles du ballast déposé à la construction de la voie ferrée. Un tel traitement conforme à l'invention, associant ainsi dans le même outil la double fonction d'aspiration et de compaction par serrage et vibration, peut avantageusement être réalisé par une bourreuse modifiée conformément à l'invention, c'est-à-dire une bourreuse intégrant la fonction d'aspiration des particules de pollution. On comprend que l'invention est performante en termes de dépollution et de propriétés mécaniques pour la couche ballastée, tout en étant facile et peu coûteuse à mettre en oeuvre, d'autant plus que cette mise en oeuvre peut avantageusement être optimisée en fonction de la voie ferrée à traiter : en effet, les inventeurs ont constaté que, pour une voie ferrée donnée, les particules de pollution tendent à s'accumuler en certaines régions prédéterminées de la couche ballastée. A titre d'exemple non limitatif, pour une voie ferrée d'une ligne ferroviaire dite à grande vitesse, telle que les voies pour la circulation des TGV en France, les inventeurs ont constaté que les particules de pollution ont systématiquement tendance à s'accumuler, à la fois, à la base de la couche ballastée, c'est-à-dire à proximité de la sous-couche de la voie ferrée, et sous les blochets des traverses, plus généralement sous les extrémités des traverses où sont fixés les rails. Ainsi, on comprend que l'aspiration des particules de pollution et la compaction des granulats de ballast conformément à l'invention peuvent avantageusement être ciblées dans les régions où s'accumulent ces particules.One of the basic ideas of the invention is to seek to separate the particles of pollution ballast granules in situ, that is to say directly within the railway to be treated, without having to excavate the ballasted layer polluted. In order to do this, according to the invention, the pollution particles are sucked directly into the ballasted layer, by means of the use of an ad hoc tool which is designed to be pressed into the thickness of the layer at the same time. ballasted and to apply, in this thickness of the ballasted layer, an air depression such that the pollution particles are separated from the ballast granules, which themselves remain in the ballasted layer. The pollution particles thus sucked are discharged outside the ballasted layer, via the tool. Of course, the aforementioned air depression requires connecting the suction duct, formed by the tool, to a vacuum source, typically a pump. In addition, according to the invention, the ballasted layer thus cleaned by suction is "recompacted" thanks to the tool, that is to say mechanically processed by this tool so that, by clamping and vibration, the ballast granules, freed from the interstitial pollution particles, rearranged with respect to one another so as to imbricate each other in order to give the ballasted layer cleared of the desired mechanical properties, close to those of the ballast deposited at the construction of the track railway. Such a treatment according to the invention, thus combining in the same tool the dual function of suction and compaction by clamping and vibration, can advantageously be achieved by a tamper modified according to the invention, that is to say a tamper integrating the aspiration function of the pollution particles. It is understood that the invention is efficient in terms of depollution and mechanical properties for the ballast layer, while being easy and inexpensive to implement, especially as this implementation can advantageously be optimized depending on the railway to be treated: in fact, the inventors have found that, for a given railway, the pollution particles tend to accumulate in certain predetermined regions of the ballasted layer. By way of non-limiting example, for a railway line of a so-called high-speed rail line, such as the tracks for the circulation of TGVs in France, the inventors have found that the pollution particles have a systematic tendency to accumulate at the same time, at the base of the ballasted layer, that is to say near the sub-layer of the railway, and under the crossbeams of the sleepers, more generally under the ends of the crosspieces where are fixed the rails. Thus, it is understood that the aspiration of the pollution particles and the compaction of the ballast granules according to the invention can advantageously be targeted in the regions where these particles accumulate.

Des caractéristiques additionnelles avantageuses du procédé et du dispositif conformes à l'invention sont spécifiées aux revendications dépendantes.Additional advantageous features of the method and device according to the invention are specified in the dependent claims.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins sur lesquels :

  • la figure 1 est une coupe schématique d'une voie ferrée, en train d'être traitée conformément à l'invention ; et
  • la figure 2 est une vue schématique en perspective illustrant une forme de réalisation d'un dispositif de traitement conforme à l'invention.
The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the drawings in which:
  • the figure 1 is a schematic section of a railway track being processed in accordance with the invention; and
  • the figure 2 is a schematic perspective view illustrating an embodiment of a processing device according to the invention.

Sur la figure 1 est représentée une voie ferrée 1 installée sur un sol S, à savoir, en pratique, un terrassement direct du sol naturel ou bien une plate-forme construite dédiée. La voie ferrée comprend une sous-couche 2, qui recouvre le sol S et qui est elle-même recouverte d'une couche ballastée 3 de la voie ferrée 1. Cette voie ferrée comporte également des rails 4, sur lesquels des véhicules ferroviaires roulent et qui sont fixés, par tout moyen approprié, à des traverses 5 posées en travers de la voie ferrée 1, sous les rails 4, pour maintenir l'écartement et l'inclinaison de ces rails. Les traverses 5 reposent directement sur la couche ballastée 3, à laquelle les traverses transmettent les charges des véhicules ferroviaires circulant sur les rails 4. La couche ballastée 3 transmet, quant à elle, les efforts engendrés par le passage des véhicules ferroviaires à la sous-couche 2 et au sol S, sans que ces derniers ne se déforment par tassement. La couche ballastée 3 est également prévue pour enchâsser les traverses 5 afin d'assurer une résistance aux déformations longitudinales des rails 4.On the figure 1 is represented a railway track 1 installed on a floor S, namely, in practice, a direct earthwork of the natural ground or a dedicated built platform. The railway comprises an underlayer 2, which covers the ground S and which itself is covered with a ballasted layer 3 of the railway track 1. This railway also comprises rails 4, on which railway vehicles drive and which are fixed, by any appropriate means, to sleepers 5 placed across the railway line 1, under the rails 4, to maintain the spacing and the inclination of these rails. The sleepers 5 rest directly on the ballast layer 3, to which the sleepers transmit the loads of the railway vehicles traveling on the rails 4. The ballasted layer 3 transmits, for its part, the forces generated by the passage of the railway vehicles to the undercarriage. layer 2 and soil S, without the latter being deformed by packing. The ballasted layer 3 is also designed to embed the sleepers 5 to ensure resistance to longitudinal deformations of the rails 4.

Comme représenté de manière très schématique sur la figure 1, la couche ballastée 3 inclut, à la fois, des granulats de ballast 3A, typiquement de la pierre concassée, dont la granulométrie est prédéterminée et varie entre 10 mm et 50 mm, et des particules fines 3B, dont la taille est plus petite que celle des granulats de ballast et qui, de ce fait, pollue les granulats de ballast 3A en altérant les caractéristiques mécaniques de la couche ballastée 3. Comme évoqué dans la partie introductive du présent document, l'origine de ces particules de pollution 3B est diverse et non limitative de la présente invention : dans tous les cas, la présence de ces particules 3B s'accroît dans le temps, au fur et à mesure du trafic ferroviaire sur la voie ferrée, si bien que, à la longue, ces particules de pollution 3B colmatent les espaces interstitiels entre les granulats de ballast 3A.As shown very schematically on the figure 1 the ballasted layer 3 includes, at the same time, granules of ballast 3A, typically crushed stone, whose particle size is predetermined and varies between 10 mm and 50 mm, and fine particles 3B, whose size is smaller than that of the ballast aggregates and which, therefore, pollutes the ballast granules 3A by altering the mechanical characteristics of the ballasted layer 3. As mentioned in the introductory part of this document , the origin of these pollution particles 3B is various and not limiting of the present invention: in all cases, the presence of these particles 3B increases over time, as and when rail traffic on the railway so that, in the long run, these pollution particles 3B clog the interstitial spaces between the ballast granules 3A.

En particulier, dans l'exemple schématisé à la figure 1, la couche ballastée 3 est davantage polluée, c'est-à-dire présente une concentration plus importante de particules de pollution 3B, à la fois à la base de la couche ballastée 3, autrement dit à proximité de la sous-couche 2, et sous les traverses 5, plus précisément sous les extrémités opposées de ces traverses, typiquement sous les blochets des traverses 5 lorsque ces dernières en sont pourvues. La présence de ces régions davantage polluées de la couche ballastée 3 pourrait s'expliquer par, d'une part, l'effet des vibrations transmises à la couche ballastée 3 lors du passage d'engins ferroviaires sur les rails 4 et l'effet du lessivage par la pluie et, d'autre part, l'application des contraintes maximales par les traverses 5 sur la couche ballastée 3.In particular, in the example shown schematically in figure 1 , the ballasted layer 3 is more polluted, that is to say has a higher concentration of pollution particles 3B, both at the base of the ballasted layer 3, in other words in the vicinity of the underlayer 2, and under the crosspieces 5, more precisely under the opposite ends of these sleepers, typically under the blokets of the sleepers 5 when the latter are provided. The presence of these more polluted regions of the ballasted layer 3 could be explained by, on the one hand, the effect of the vibrations transmitted to the ballasted layer 3 during the passage of railway gear on the rails 4 and the effect of the leaching by rain and, secondly, the application of the maximum stresses by the sleepers 5 on the ballasted layer 3.

Sur la figure 1 est également représenté un engin de travaux ferroviaires 10 destiné à traiter la voie ferrée 1. Dans l'exemple de réalisation considéré ici, cet engin 10 est à même de rouler sur les rails 4 de la voie ferrée 1.On the figure 1 a railway work machine 10 is also shown for processing the railway line 1. In the embodiment considered here, this machine 10 is able to roll on the rails 4 of the railway line 1.

L'engin 10 est équipé, en deux exemplaires dans l'exemple de réalisation considéré sur la figure 1, d'un outil 12 de traitement de la couche ballastée 3, un mode de réalisation de cet outil 12 étant montré à la figure 2. Cet outil 12 comporte un corps allongé 14 qui, en service, s'étend en longueur sensiblement à la verticale et est enfoncé à l'intérieur de la couche ballastée 3, autrement dit dans l'épaisseur de cette couche 3. Comme montré à la figure 2, le corps 14 inclut une partie haute 16 dont la face extérieure est sensiblement tronconique et convergente vers le bas. Ce corps 14 inclut également une partie basse 18 réalisée sous forme d'une batte de bourrage qui est prévue pour être enfoncée dans la couche ballastée 3, puis utilisée dans cette couche ballastée 3 pour compacter les granulats de ballast 3A par serrage et vibration. Ainsi, le corps 14 présente globalement une face extérieure dont la géométrie permet, entre autres, de faciliter l'enfoncement de ce corps 14 dans la couche ballastée 3, notamment jusqu'à positionner la partie basse 18 à proximité de la sous-couche 2.The machine 10 is equipped, in two copies in the example of realization considered on the figure 1 , a tool 12 for processing the ballasted layer 3, an embodiment of this tool 12 being shown in FIG. figure 2 . This tool 12 comprises an elongate body 14 which, in use, extends in length substantially vertically and is pressed inside the ballasted layer 3, in other words in the thickness of this layer 3. As shown in FIG. figure 2 , the body 14 includes a top portion 16 whose outer face is substantially frustoconical and converging downwards. This body 14 also includes a lower part 18 made in the form of a stuffing bat which is intended to be driven into the ballasted layer 3, then used in this ballast layer 3 to compact the ballast granules 3A by clamping and vibration. Thus, the body 14 generally has an outer face whose geometry makes it possible, inter alia, to facilitate the insertion of this body 14 into the ballasted layer 3, in particular until positioning the lower part 18 near the underlayer 2 .

De plus, toujours dans l'exemple de réalisation considéré sur la figure 2, le corps 14, plus spécifiquement sa partie 18 formant batte de bourrage, délimite au moins un orifice traversant 20, qui relie l'un à l'autre la face extérieure de ce corps à un volume libre qui est délimité à l'intérieur du corps 14 sous forme d'un conduit 22 s'étendant sensiblement dans la direction longitudinale du corps 14. Dans l'exemple considéré, un seul orifice 20 est prévu, délimité par la partie basse 18 du corps 14. Bien entendu, le nombre et la disposition de ce ou ces orifices 20 peuvent varier, à titre de variantes non représentées. En particulier, la partie haute 16 peut être pourvue d'un ou de plusieurs de ces orifices, le cas échéant répartis régulièrement autour de cette partie haute 16. De même, chaque face principale de la partie 18 formant batte de bourrage peut être pourvue d'un ou de plusieurs de ces orifices. Dans tous les cas, le ou chacun de ces orifices 20 relie l'extérieur du corps 14 au conduit interne 22, ce conduit interne reliant, par l'intérieur du corps 14, l'orifice ou les différents orifices 20 à un orifice terminal supérieur 24 situé à l'extrémité supérieure du corps 14.Moreover, still in the embodiment considered on the figure 2 , the body 14, more specifically its part 18 forming a stuffing bat, delimits at least one through orifice 20, which connects the outer face of this body to a free volume which is delimited inside the body 14 in the form of a duct 22 extending substantially in the longitudinal direction of the body 14. In the example considered, a single orifice 20 is provided, delimited by the lower part 18 of the body 14. Of course, the number and the arrangement of this or these orifices 20 may vary, as variants not shown. In particular, the upper part 16 may be provided with one or more of these orifices, where appropriate regularly distributed around this upper part 16. Similarly, each main face of the part 18 forming a stuffing pad may be provided with one or more of these orifices. In all cases, the or each of these orifices 20 connects the outside of the body 14 to the inner conduit 22, this inner conduit connecting, through the interior of the body 14, the orifice or the various orifices 20 to an upper terminal orifice 24 located at the upper end of the body 14.

L'engin de travaux ferroviaires 10 est également équipé d'une pompe d'aspiration 26 dont l'entrée aspirante est raccordée à l'orifice 24 du corps 14 de chacun des outils de traitement 12, par l'intermédiaire de moyens de raccordement fluidique ad hoc 26. En pratique, les moyens de raccordement fluidique 28 constituent également des moyens de liaison mécanique entre l'outil de traitement correspondant 12 et le reste de l'engin de travaux ferroviaires 10, notamment afin de manoeuvrer cet outil de traitement par un système d'assistance motorisé. La forme de réalisation de ces moyens de raccordement fluidique et de liaison mécanique 28 n'est pas limitative de l'invention. De même, la pompe d'aspiration 26 précitée présente des formes de réalisation diverses, dans le sens où, plus généralement, elle correspond à une source de vide, à même de créer une dépression d'air, communiquée jusqu'à l'orifice 24 du conduit 22 de chaque outil de traitement 12 par les moyens précités 28.The railway working machine 10 is also equipped with a suction pump 26 whose suction inlet is connected to the orifice 24 of the body 14 of each of the processing tools 12, by means of fluid connection means. ad hoc 26. In practice, the fluidic connection means 28 also constitute means of mechanical connection between the corresponding processing tool 12 and the rest of the railway work machine 10, in particular in order to manipulate this processing tool by a motorized assistance system. The embodiment of these fluidic connection and mechanical connection means 28 is not limiting of the invention. Similarly, the aforementioned suction pump 26 has various embodiments, in the sense that, more generally, it corresponds to a source of vacuum, able to create an air vacuum, communicated to the orifice 24 of the duct 22 of each treatment tool 12 by the aforementioned means 28.

Avantageusement, le ou chacun des orifices 20 est pourvu d'un tamis 30 prévu pour séparer les granulats de ballast 3A vis-à-vis des particules de pollution 3B de la couche ballastée 3, en fonction de leur granulométrie : pour ce faire, chaque tamis 30 présente une maille dimensionnée pour, à la fois, laisser passer à travers elle les particules de pollution 3B et retenir les granulats de ballast 3A.Advantageously, the or each of the orifices 20 is provided with a screen 30 designed to separate the ballast granules 3A with respect to the pollution particles 3B of the ballasted layer 3, depending on their particle size: to do this, each sieve 30 has a mesh sized to both pass through the pollution particles 3B and retain the ballast granules 3A.

Un exemple d'utilisation de l'engin de travaux ferroviaires 10, visant à traiter la voie ferrée 1, va maintenant être décrit.An example of use of the railway works machine 10, to treat the railway 1, will now be described.

Après avoir amené l'engin 10 au niveau de la zone à traiter de la voie ferrée 1, comme par exemple sur la figure 1, chacun des outils de traitement 12 est enfoncé à l'intérieur de la couche ballastée 3, de manière sensiblement verticale, le corps 14 s'étendant alors en travers de l'épaisseur de cette couche ballastée 3, comme schématisé sur la figure 1. Par actionnement de la pompe 26, une dépression d'air est appliquée à l'orifice 24 du conduit 22 de chacun des outils 12, provoquant une aspiration à l'intérieur du conduit 22. Ainsi, une dépression d'air est communiquée à chacun des orifices 20 : ces derniers étant au contact de la couche ballastée 3, cette dépression est communiquée aux espaces entre les granulats de ballast 3A, autrement dit aux espaces susceptibles de contenir les particules de pollution 3B. Ces particules de pollution 3B sont alors aspirées jusqu'aux orifices 20 où elles sont admises à l'intérieur du conduit d'aspiration 22 puis, toujours sous l'effet de la dépression générée par la pompe 26, sont évacuées de ce conduit d'aspiration 22 par l'orifice 24, avant de rejoindre un collecteur, non représenté, par l'intermédiaire des moyens de raccordement et de liaison 28. Les particules de pollution 3B sont ainsi séparées des granulats de ballast 3A, ces derniers demeurant dans la couche ballastée 3, en étant retenus à l'extérieur du corps 14 des outils 12 par les tamis 30 des ouvertures d'aspiration 22.After having brought the machine 10 to the level of the area to be treated of the railway line 1, as for example on the figure 1 , each of the processing tools 12 is pushed inside the ballasted layer 3, substantially vertically, the body 14 then extending across the thickness of the ballasted layer 3, as shown schematically on the figure 1 . By actuation of the pump 26, an air vacuum is applied to the orifice 24 of the duct 22 of each of the tools 12, causing a suction inside the duct 22. Thus, an air vacuum is communicated to each of the orifices 20: the latter being in contact with the ballasted layer 3, this depression is communicated to the spaces between the ballast granules 3A, in other words to the spaces likely to contain the particles of pollution 3B. These particles of pollution 3B are then sucked up to the orifices 20 where they are admitted inside the suction duct 22 and then, still under the effect of the depression generated by the pump 26, are evacuated from this duct. suction 22 through the orifice 24, before joining a manifold, not shown, through the connecting means and connecting 28. The pollution particles 3B are thus separated from the ballast granules 3A, the latter remaining in the layer ballasted 3, being retained outside the body 14 of the tools 12 by the screens 30 of the suction openings 22.

L'aspiration des particules de pollution 3B est accompagnée et/ou suivie d'une compaction de la couche ballastée 3, cette compaction étant mise en oeuvre par serrage et vibration. Une telle compaction, qui consiste à réorganiser, par rapprochement, l'arrangement relatif entre les granulats de ballast 3A, débarrassés au moins en partie des particules de pollution 3B, est réalisée par les outils de traitement 12, chacun d'eux formant donc, en quelque sorte, une bourreuse intégrant une fonction d'aspiration. De cette façon, ces granulats de ballast 3A, entre lesquels l'aspiration des particules de pollution 3B laisse des vides résiduels, s'imbriquent alors les uns dans les autres pour former un ensemble davantage compact, en renforçant les propriétés mécaniques, notamment la résistance, de la couche ballastée 3 dépolluée.The aspiration of the pollution particles 3B is accompanied and / or followed by a compaction of the ballasted layer 3, this compaction being implemented by clamping and vibration. Such compaction, which consists in rearranging, by approximation, the relative arrangement between the ballast granules 3A, freed at least partly of the pollution particles 3B, is achieved by the processing tools 12, each of them forming, in a way, a tamper incorporating a suction function. In this way, these ballast granules 3A, between which the aspiration of the pollution particles 3B leaves residual voids, then interlock into each other to form a more compact assembly, by reinforcing the mechanical properties, in particular the resistance , of the ballasted layer 3 depolluted.

De plus, en particulier lorsque cette opération de compactage commence d'être mise en oeuvre avant qu'il ne soit mis fin à l'aspiration des particules de pollution 3B, le réarrangement des granulats de ballast 3A est susceptible de libérer des particules de pollution 3B qui, sinon, seraient restées coincées entre certains des granulats de ballast, ce qui permet donc d'augmenter la quantité de particules de pollution aspirées.In addition, particularly when this compacting operation begins to be implemented before the aspiration of the pollution particles 3B is stopped, the rearrangement of the ballast granules 3A is capable of releasing pollution particles. 3B which otherwise would have remained stuck between some of the ballast granules, which therefore makes it possible to increase the amount of pollution particles sucked.

Bien entendu, l'utilisation des outils de traitement 12 pour à la fois aspirer les particules de pollution 3B et, concomitamment et/ou successivement, recompacter les granulats de ballast 3A dépollués est compatible avec l'utilisation simultanée d'une bourreuse préexistante : dans ce cas, seule une partie de la compaction des granulats de ballast résulte de l'action des outils de traitement 12, le reste de la compaction résultant de l'action de la bourreuse préexistante.Of course, the use of the treatment tools 12 for both sucking the pollution particles 3B and, concomitantly and / or successively, recompacting the ballast granules 3A depolluted is compatible with the simultaneous use of a pre-existing tamper: in in this case, only a part of the compaction of the ballast aggregates results from the action of the processing tools 12, the rest of the compaction resulting from the action of the pre-existing tamper.

De manière avantageuse, en tenant compte des considérations développées plus haut, relatives à la présence de régions de la couche ballastée 3 ayant une plus forte concentration de particules de pollution 3B, chaque outil de traitement 12 est enfoncé dans les régions précitées de la couche ballastée 3 de manière à aspirer efficacement une grande quantité de particules de pollution 3B présentes dans la couche 3 traitée. Plus précisément, au moins un des outils de traitement 12 est enfoncé dans la couche ballastée 3 de sorte qu'au moins une partie de son corps 14, en particulier la partie basse 18, est à proximité immédiate de la sous-couche 2 : de cette façon, cet outil 12 aspire les particules de pollution 3B situées plus près de cette sous-couche 2 que de la surface libre opposée de la couche ballastée 3. Une autre possibilité, qui peut d'ailleurs être combinée avec ce qui vient d'être décrit, consiste à enfoncer au moins un des outils de traitement 12 à proximité d'une des extrémités longitudinales d'une des traverses 5, de sorte qu'au moins une partie du corps 14 de cet outil, notamment sa partie haute 16, soit au contact de la région de la couche ballastée 3, située juste au-dessous de l'extrémité précitée de la traverse : de cette façon, les particules de pollution 3B présentes dans la région précitée de la couche ballastée 3 sont aspirées par cet outil 12.Advantageously, taking into account the considerations developed above, relating to the presence of regions of the ballasted layer 3 having a higher concentration of pollution particles 3B, each treatment tool 12 is depressed. in the aforementioned regions of the ballasted layer 3 so as to effectively suck a large amount of pollution particles 3B present in the treated layer 3. More specifically, at least one of the treatment tools 12 is driven into the ballasted layer 3 so that at least part of its body 14, in particular the lower part 18, is in the immediate vicinity of the underlayer 2: this way, this tool 12 sucks up the pollution particles 3B located closer to this sublayer 2 than the opposite free surface of the ballasted layer 3. Another possibility, which can also be combined with what comes from be described, consists in driving at least one of the processing tools 12 near one of the longitudinal ends of one of the crosspieces 5, so that at least a portion of the body 14 of this tool, in particular its upper part 16, either in contact with the region of the ballasted layer 3, situated just below the aforementioned end of the crossbar: in this way, the pollution particles 3B present in the aforementioned region of the ballasted layer 3 are sucked by this tool 12.

Divers aménagements et variantes au traitement, décrit jusqu'ici, de la voie ferrée 1 sont envisageables. A titre d'exemple, plutôt que le dispositif de traitement, incluant les outils de traitement 12, la pompe d'aspiration 26 et les moyens de raccordement fluidique et de liaison mécanique 28, soit embarqué sur un engin de travaux ferroviaires mobile, tel que l'engin 10 à la figure 1, ce dispositif de traitement peut être installé en bordure d'une voie ferrée à traiter, en particulier si on renonce à ce que ce dispositif de traitement puisse, à lui seul, recompacter les granulats de ballast 3A dépollués par aspiration.Various arrangements and variants treatment, described so far, the railway 1 are possible. By way of example, rather than the processing device, including the processing tools 12, the suction pump 26 and the fluidic connection and mechanical connection means 28, is embarked on a mobile railway work machine, such as the machine 10 at the figure 1 , this treatment device can be installed along a railway track to be treated, especially if it is waived that this treatment device can, by itself, recompact the ballast granules 3A vacuum-cleaned.

Claims (9)

Procédé de traitement d'une voie ferrée (1) incluant une couche ballastée (3), qui recouvre une sous-couche (2), sur laquelle reposent des traverses (5) de support de rails (4) et qui inclut à la fois des granulats de ballast (3A) et des particules de pollution (3B) plus fines que les granulats de ballast,
procédé dans lequel : - on enfonce un outil (12) dans la couche ballastée (3), et - par l'intermédiaire de l'outil (12) enfoncé dans la couche ballastée (3), on aspire au moins une partie des particules de pollution (3B) de manière à les retirer des granulats de ballast (3A), caractérisé en ce que, après et/ou pendant l'aspiration des particules de pollution (3B), on compacte les granulats de ballast (3A) par serrage et vibration en utilisant ledit outil (12). A method of treating a railroad track (1) including a ballasted layer (3), which covers an underlayer (2), on which rails (5) for rail support (4) rest and which includes both granulate ballast (3A) and pollution particles (3B) finer than ballast granules,
process in which a tool (12) is pressed into the ballasted layer (3), and - By means of the tool (12) driven into the ballasted layer (3), at least a portion of the pollution particles (3B) are sucked up so as to remove them from the ballast granules (3A), characterized in that that after and / or during the suction of pollution particles (3B), is compacted ballast aggregate (3A) by clamping and vibration using said tool (12). Procédé suivant la revendication 1, caractérisé en ce qu'on utilise ledit outil (12) pour réaliser toute la compaction des granulats de ballast (3A).Method according to claim 1, characterized in that said tool (12) is used to perform all the compaction of the ballast granules (3A). Procédé suivant la revendication 1, caractérisé en ce qu'on utilise ledit outil (12) pour réaliser une partie seulement de la compaction des granulats de ballast (3A).Process according to claim 1, characterized in that said tool (12) is used to perform only part of the compaction of the ballast granules (3A). Procédé suivant l'une quelconque des revendications précédentes, caractérisé en ce qu'on enfonce ledit outil (12) à proximité de la sous-couche (2) de manière à aspirer les particules de pollution (3B) qui sont situées plus près de la sous-couche (2) que de la surface libre opposée de la couche ballastée (3).Method according to one of the preceding claims, characterized in that said tool (12) is pressed in proximity to the underlayer (2) so as to suck up the pollution particles (3B) which are situated closer to the underlayer (2) than the opposite free surface of the ballasted layer (3). Procédé suivant l'une quelconque des revendications précédentes, caractérisé en ce qu'on enfonce ledit outil (12) à proximité des extrémités longitudinales opposées des traverses (5) de manière à aspirer les particules de pollution (3B) qui sont situées sous ces extrémités des traverses.A method as claimed in any one of the preceding claims, characterized in that said tool (12) is driven close to the opposite longitudinal ends of the cross members (5) so as to suck up the pollution particles (3B) which are located under these ends sleepers. Dispositif de traitement d'une voie ferrée (1) incluant une couche ballastée (3), qui recouvre une sous-couche (2), sur laquelle reposent des traverses (5) de support de rails (4) et qui inclut à la fois des granulats de ballast (3A) et des particules de pollution (3B) plus fines que les granulats de ballast,
lequel dispositif comprend : - une source de vide (26), et - un outil (12) de traitement de la couche ballastée (3), comportant un conduit (22) d'aspiration des particules de pollution (3B), reliant au moins un orifice d'admission (20), qui est au contact des particules de pollution (3B) et des granulats de ballast (3A) lorsque l'outil de traitement est enfoncé dans la couche ballastée (3), à un orifice d'évacuation (24), qui est raccordé à la source de vide (26), caractérisé en ce que l'outil de traitement (12) est également adapté pour compacter les granulats de ballast (3A) par serrage et vibration lorsque l'outil de traitement est enfoncé dans la couche ballastée (3).A railway processing device (1) including a ballasted layer (3), which covers an underlayer (2), on which rails (5) for rail support (4) rest and which includes both granulate ballast (3A) and pollution particles (3B) finer than ballast granules,
which device comprises: a source of vacuum (26), and a tool (12) for treating the ballast layer (3), comprising a conduit (22) for sucking up the pollution particles (3B), connecting at least one inlet orifice (20), which is in contact with the pollution particles (3B) and ballast aggregates (3A) when the treatment tool is driven into the ballasted layer (3) at a discharge port (24) which is connected to the vacuum source (26). ) characterized in that the treatment tool (12) is also adapted to compact the ballast granules (3A) by clamping and vibrating when the treatment tool is driven into the ballast layer (3). Dispositif suivant la revendication 6, caractérisé en ce que le ou chaque orifice d'admission (20) est pourvu d'un tamis de séparation granulométrique (30), qui laisse passer à travers lui les particules de pollution (3B) et qui retient les granulats de ballast (3A).Device according to Claim 6, characterized in that the or each inlet orifice (20) is provided with a granulometric separation sieve (30), which allows the pollution particles (3B) to pass therethrough and which retains the ballast aggregates (3A). Dispositif suivant l'une des revendications 6 ou 7, caractérisé en ce que l'outil de traitement (12) comporte un corps (14) d'enfoncement dans la couche ballastée (3), qui inclut une batte (18) de bourrage des granulats de ballast (3A), le ou au moins un des orifices d'admission (20) étant délimité par cette batte de bourrage (18).Device according to one of claims 6 or 7, characterized in that the treatment tool (12) comprises a depression body (14) in the ballasted layer (3), which includes a batten (18) ballast aggregates (3A), the or at least one of the inlet ports (20) being delimited by this stuffing bat (18). Dispositif suivant la revendication 8, caractérisé en ce que le corps d'enfoncement (14) inclut une partie (16), qui s'étend entre la batte de bourrage (18) et l'orifice d'évacuation (24) et dont la face extérieure est sensiblement tronconique.Apparatus according to Claim 8, characterized in that the driving body (14) includes a portion (16) extending between the stuffing pad (18) and the discharge opening (24) and outer face is substantially frustoconical.
EP15154956.5A 2014-02-14 2015-02-13 Method and device for compacting and cleaning the ballast of a railway track Active EP2907920B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1451207A FR3017630B1 (en) 2014-02-14 2014-02-14 METHOD AND DEVICE FOR TREATING A RAILWAY

Publications (2)

Publication Number Publication Date
EP2907920A1 true EP2907920A1 (en) 2015-08-19
EP2907920B1 EP2907920B1 (en) 2016-08-31

Family

ID=50933297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15154956.5A Active EP2907920B1 (en) 2014-02-14 2015-02-13 Method and device for compacting and cleaning the ballast of a railway track

Country Status (2)

Country Link
EP (1) EP2907920B1 (en)
FR (1) FR3017630B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2028688A (en) * 1931-10-16 1936-01-21 Walter S Rugg Ballast cleaning apparatus
FR971180A (en) 1951-01-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR971180A (en) 1951-01-15
US2028688A (en) * 1931-10-16 1936-01-21 Walter S Rugg Ballast cleaning apparatus

Also Published As

Publication number Publication date
FR3017630B1 (en) 2017-01-27
FR3017630A1 (en) 2015-08-21
EP2907920B1 (en) 2016-08-31

Similar Documents

Publication Publication Date Title
FR2484493A1 (en) METHOD AND DEVICE FOR REPAIRING CRACKS OR LONGITUDINAL JOINTS IN ROAD COVERINGS
JP5174990B2 (en) Cleaning device and cleaning method for high-performance pavement
KR101406331B1 (en) Roller-brush apparatus for road cleaning vehicle
CA3134070C (en) Braking system with air blowing in the groove in the lining
EP2907920B1 (en) Method and device for compacting and cleaning the ballast of a railway track
KR101658246B1 (en) Method for refurbishing a ballast bed of a track
KR100979475B1 (en) Apparatus for repair of concrete road
JP4339715B2 (en) Cleaning device and method
CN205822114U (en) A kind of snow removing roll
KR102050324B1 (en) Pavement road air void recovery vehicle
DE3411169A1 (en) Floor clearing plough
JP3932411B2 (en) Tunnel wall cleaning equipment
FR2504162A1 (en) ROLLING INSTALLATION FOR CARRYING OUT A PROTECTIVE LAYER EXTENDING BETWEEN THE TRACK BEARING AND THE BALLAST PIERRAILLE BED OF A RAILWAY
CA2725080A1 (en) Use of a device for cleaning metal fibers with a view to recycle and recover the same
EP1920812B1 (en) Apparatus and process for gathering and transporting of in particular a sand layer and for removing layers of alga in filter basins
JPH1085681A (en) Green cut working car
EP3016914A1 (en) Method and facility for treating sludge, in particular harbour sludge
JP2005127019A (en) Function recovery method of drainable pavement and the drainable pavement
JP4282881B2 (en) Surface layer regeneration processing method and apparatus for drainage pavement
CN201236309Y (en) Mud scraping device of steel wheel vibrating roller
FR2770235A1 (en) Mineral metalling for road surfaces
EP0617173A1 (en) Method and apparatus for cleaning a porous road surface
FR3085951A1 (en) PROCESS FOR RECYCLING THE WATER USED BY A SELF-CLEANER FOR CLEANING A ROAD
EP2845950B1 (en) Ballastless railway track
FR2978380A1 (en) Device for occulting window of vehicle i.e. car, has pad clamped in guide rail, contacting slide surfaces of guide rail and sliding on guide rail, where slide surfaces of guide rail comprise wiping unit that slides on pad for cleaning pad

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20160120

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160310

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015000250

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 825087

Country of ref document: AT

Kind code of ref document: T

Effective date: 20161015

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160831

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 825087

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161130

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161201

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170102

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161130

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015000250

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20170601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170213

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170213

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180228

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230110

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20230220

Year of fee payment: 9

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230512

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240213

Year of fee payment: 10

Ref country code: GB

Payment date: 20240221

Year of fee payment: 10