EP2420620A1 - Matériau isolant pour rails de chemin de fer - Google Patents

Matériau isolant pour rails de chemin de fer Download PDF

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Publication number
EP2420620A1
EP2420620A1 EP10172914A EP10172914A EP2420620A1 EP 2420620 A1 EP2420620 A1 EP 2420620A1 EP 10172914 A EP10172914 A EP 10172914A EP 10172914 A EP10172914 A EP 10172914A EP 2420620 A1 EP2420620 A1 EP 2420620A1
Authority
EP
European Patent Office
Prior art keywords
granules
damping material
rail
mixture
block
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.)
Withdrawn
Application number
EP10172914A
Other languages
German (de)
English (en)
Inventor
José Daniel Garcia Espinel
Jorge Gomez Hoyos
Roger Coaquira Apaza
Monica Diaz Hernandez
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.)
Acciona Construccion SA
Original Assignee
Acciona Infraestructuras SA
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 Acciona Infraestructuras SA filed Critical Acciona Infraestructuras SA
Priority to EP10172914A priority Critical patent/EP2420620A1/fr
Publication of EP2420620A1 publication Critical patent/EP2420620A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • 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
    • E01B3/40—Slabs; Blocks; Pot sleepers; Fastening tie-rods to them
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E01B19/003—Means for reducing the development or propagation of noise

Definitions

  • the main object of the present invention comprises a damping material for railway rails, a prefabricated block for support of railway rails which incorporates said damping material, a rail encased in said damping material, and the process for the preparation of said block and said rail, all specially designed for the damping support of railway rails.
  • document JP2002326225 discloses the use of rubber chips obtained by the grinding-up of used tyres, as a fill element between the rails in the construction of railway tracks, with the object of providing elasticity to the rails.
  • Korean patent document KR20020050095 discloses a product based on polymer and gravel which employs used tyres and which is used in the construction of a railway track which has reduced noise and vibration.
  • Korean patent document KR20020050095 discloses a product based on polymer and gravel which employs used tyres and which is used in the construction of a railway track which has reduced noise and vibration.
  • the combined use of polymer and recycled tyres together with gravel without defined proportions is disclosed.
  • Korean patent document KR20040017012 relates to a railway sleeper composed of a steel block whereon the rails are supported and an injected coating of recycled tyre powder, which serves as a support to the assembly of the rails and the block of steel.
  • European Patent Application EP1197598 discloses a vibration damper situated between the rails of a railway track, with an intermediate arrangement between the sleepers whereupon the rails are supported. specifically detailed in claim 7, of the manufacture of the vibration damper from elastic materials which dampen the vibrations, such as granules of recycled rubber embedded in a polyurethane matrix.
  • Spanish utility model application ES1065079 discloses a rail support block assembly consisting of a prefabricated plastic tray and a block.
  • the assembly is mounted in the sub-structure of a railway track.
  • the block is comprised of an upper part, a base and a peripheral wall, and at least one rail is supported on said block.
  • the plastic tray is formed by two encapsulated trays and an elastomeric elastic structure is disposed there between which contains a type of cork called 'Corkelast'.
  • the outer tray is prefabricated from plastic or concrete and has anchorages for coupling to concrete slabs. Nevertheless, the use of the prefabricated elastic tray based on a sandwich of two other trays with a filling of elastomeric material presents various drawbacks, not least of which is a relative heaviness and the lack of the use of waste materials.
  • the damping material of the invention has an optimal constitution to be used in the support and damping of railway rails, it is very light and has environmental advantages because it avails of the granulated remains (hereinafter, simply referred to as 'granules') derived by the recycling of tyres.
  • the damping material comprises a solid mixture of the granules produced by the recycling of used tyres, and 5% - 45% of a binding polymer in relation to the weight of granules.
  • the polymer may be polyurethane or epoxy.
  • water acts as a catalyst.
  • the preferred amount of water used is equivalent to 2% of the total weight of the polymer.
  • a greater or lesser stiffness can be imparted to the material of the invention, by adjusting the grading of the granules or granulometry as well as the nature and proportion of the polymers used, varying its characteristics in respect of the damping of noise and vibration: Less damping of noise and vibration is produced in respect of greater stiffness and vice-versa.
  • Another object of the invention relates to a prefabricated block which can serve for the assembly of a track panel, which is a track seated on a slab of concrete, instead of on the traditional ballast.
  • This block incorporates parts of the material of the invention which result in the presentation of reduced noise and vibration characteristics. In addition, it is easy to handle and has reduced weight and costs.
  • These blocks are designed specifically to support the track rails which can be used in railway tracks, light rail and heavy rail.
  • the pre-fabricated block of the invention comprises a solid die shaped block, normally of concrete; means for fixing the rail or rails to said solid block; and a part joined to the solid block constituted from the damping material of the invention.
  • the fastening means comprise any type of fastening devices, for example Vossloh fasteners.
  • reinforcement means may be embedded in the base whose exposed parts play a role in the fixing of the prefabricated block to the concrete slab, if this is manufactured after the arrangement of the prefabricated block.
  • the manufacturing procedure of the block comprises kneading a mixture of granules and polymers corresponding to the damping material, disposing said mixture in a mould before curing, disposing the reinforcing as required therein beforehand, and the subsequent insertion of the solid block, once the mixture of damping material has been removed from the mould after curing.
  • Another object of the present invention consists of a rail encased in the damping material of the invention. This is also designed to be assembled in a track panel and is designed specially to support the railway rails which can be used in railway tracks, light rail and heavy rail. It has the advantage that it remains embedded and at the same level as the panel, which enables the traffic of other vehicles on the track.
  • the encased rail of the invention dampens effectively the noise and vibrations produced by the passage of the passing trains, it has a reduced cost and provides all of the advantages inherent to a slab track system, enabling a greater durability of rails and a lack of mechanical fittings and avoiding the needs for realignment of rails. It also has a high electrical resistance and is completely watertight.
  • the encased rail comprises a unitary configuration formed from a casing made from the damping material of the invention and a rail embedded and adhered to said casing in a manner that its periphery is completely covered with the exception of its superior running surface.
  • the procedure of the manufacturing of the encased rail of the invention comprises the kneading of the mixture of the granules and the polymers, making a laid base in a mould using a first quantity of the mixture, and the arrangement of a rail on that laid base, and the filling of the side parts of the mould, levelling up to the top of the rail, and removing from the mould after curing. Following this procedure enables the casing of damping material which is adhered perfectly to the rail and which is a single piece.
  • the casing preferably has an overtilted prism shape which features a planar lower support surface. Moreover, to improve its grip on the slab of concrete or asphalt, it is envisaged that some profiles may be implemented in its outline.
  • the damping material of the invention comprises a solid mixture formed from granules derived from the recycling of used tyres, and 5% - 45%, based on the weight of granules, of a binder polymer.
  • the polymers may be polyurethane or epoxy.
  • the mixture may be made at ambient temperatures, with the curing thereof over a period of approximately 24 hours.
  • the granules of tyres may employ mixtures of different granulometries or specifically thick granulometry or G (wherein the size of the granules is comprised between 2 and 5 mm), medium or M (size of the granules comprised between 0.5 and 2 mm), and fine or F (size of less than 1 mm).
  • the prefabricated block (1) comprises a solid die block (2) with approximately cubic shape, normally of concrete; fixing means (3) of the railway rails (4) to said die block (2); and a base (5) constituted from the damping material of the invention and joined to the solid block.
  • the fastening means (3) comprise in this embodiment U-shaped brackets (30), seated pieces (31) and screwed-in ties (32).
  • the base (5) has an elongation (5a), as shown in Fig. 1 , which is disposed overlapping the peripheral lower ends of the solid die block (2) assisting in the fastening thereto.
  • the block (1) is specially designed for the assembly of slab tracks systems, and for this purpose the arrangement of protruding frameworks (50), which are typically integrated in the base (5) which, while embedded in the concrete slab, and although not shown in Fig. 1 or 2 , enables an effective fixing of the block thereto.
  • a very preferred variant of the damping material of the invention for the block (1) of the invention comprises using 35% - 45% of a polyurethane polymer in respect of the weight of the granules for the base (5), with said granules being of a course grade of type C.
  • a mixture is employed comprised of 35% - 45% of a polyurethane polymer in respect of the weight of the granules and granules derived from the recycling of tyres which have a medium, or type M grade, or fine or type F grade.
  • damping material of the invention comprises using a mixture of 5 - 15% of polymer in respect of the weight of the granules as the damping material and granules derived from the recycling of tyres with a medium or M grade, or a fine or F grade.
  • the procedure of the manufacture of the block (1) comprises: kneading a mixture of granules and polymer corresponding to the damping material, introducing said mixture to a mould before curing it, and inserting the block immediately, then removing from the mould once the mixture of the damping material is cured.
  • the frameworks (50) may be disposed in the mould before introducing the mixture.
  • the damping material is perfectly adhered to the block (2) on the curing of the mixture of granules and the polymer in contact therewith.
  • an encased rail (40) has been designed cased in the damping material of the invention.
  • the encased rail (40) comprises a casing (41) constituted based on said damping material of the invention, and the railway rails (4a) embedded in said casing (41).
  • the casing (41) covers and adheres to the entire periphery of the railway rails (4a) with the exception of the upper running surface (4ab), and once assembled remains embedded in the concrete slab (60) allowing wheeled traffic (see Fig. 5).
  • the rail referred to in Figs. 3 to 5 designated by the reference (4a) is thus distinguished from the railway rails (4) which may be used in the block (1) and shown in Fig.1 and Fig. 2 , since they have different sections.
  • the casing (41) preferably has an overtilted prismatic shape, and it is envisaged that its outline incorporates profiles which improve its fixing to the slab (60). These profiles, preferably take the form of lower side heels (43), which also increases the lower support surface of the encased rail (40).
  • a variant of the encased rail (40) is shown in Fig. 3 . It comprises using 25% - 35% of polyurethane polymer in relation to the weight of the granules for the casing (41), with the granules being based on a mixture of grades C and M ideally in an approximate proportion of 50% each.
  • FIG. 3 Another variant of the embedded rail (40) is shown in Fig. 3 . It comprises using 25% - 35% of polyurethane polymer in relation to the weight of the granules for the casing (41), with the granules comprising a mixture of grade M.
  • the procedure of preparation of the encased rail (40) comprises: kneading a mixture of granules and resin; making a laid base in a mould using a first quantity of the mixture, and the arrangement of the railway rails (4a) on that laid base; filling of the side parts of the mould, levelling up to the top of the rail (4a), and removing from the mould after curing. Following this procedure enables the casing of damping material which is adhered perfectly to the rail and which is a single piece.
  • the casing (41) is disposed wrapping the side faces and underside of the rail (4a) and is perfectly adhered thereto, once the mixture of polymer and granules in contact with the railway rails (4a) are cured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Vibration Prevention Devices (AREA)
EP10172914A 2010-08-16 2010-08-16 Matériau isolant pour rails de chemin de fer Withdrawn EP2420620A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10172914A EP2420620A1 (fr) 2010-08-16 2010-08-16 Matériau isolant pour rails de chemin de fer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10172914A EP2420620A1 (fr) 2010-08-16 2010-08-16 Matériau isolant pour rails de chemin de fer

Publications (1)

Publication Number Publication Date
EP2420620A1 true EP2420620A1 (fr) 2012-02-22

Family

ID=43432258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10172914A Withdrawn EP2420620A1 (fr) 2010-08-16 2010-08-16 Matériau isolant pour rails de chemin de fer

Country Status (1)

Country Link
EP (1) EP2420620A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2845951A1 (fr) * 2013-09-04 2015-03-11 Prefarails Holding Jaquette pour rail destiné aux véhicules ferroviaires
CN110777573A (zh) * 2019-11-13 2020-02-11 成都市新筑路桥机械股份有限公司 一种埋入式轨道用减振降噪部件及其施工方法
RU2797059C1 (ru) * 2023-01-10 2023-05-31 Сергей Евгеньевич Шаховец Прирельсовый длинномерный упругий элемент
US12152351B2 (en) 2020-12-04 2024-11-26 Progress Rail Services Corporation Track rail fastening system having cantilevered third rail support bracket and direct fixation fastener assembly for same

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652495A (en) * 1986-01-31 1987-03-24 Japanese National Railways Resilient coat for tie of direct-connection type track
WO1993006302A1 (fr) * 1991-09-18 1993-04-01 Rainer Noreick Procede et dispositif de fabrication d'un renforcement elastique de rails
EP1197598A1 (fr) 2000-10-10 2002-04-17 Composite Damping Material N.V. (CDM) Amortisseur de vibration pour des rails
KR20020050095A (ko) 2001-11-21 2002-06-26 김충익 고무주입식 무보수궤도 및 이의 시공방법
JP2002326225A (ja) 2001-05-01 2002-11-12 Misawa Toyo Co Ltd ゴムチップ、及びゴムチップの製造方法
KR20040017012A (ko) 2002-08-20 2004-02-26 최진욱 철도 레일 받침대
EP1467023A1 (fr) * 2003-04-11 2004-10-13 Patrick Vanhonacker Système de rail enrobé
WO2006032684A1 (fr) * 2004-09-21 2006-03-30 Feronia S.A. Procédé d'enrobage d'un rail pour véhicule ferroviaire.
ES1065079Y (es) 2006-10-03 2007-09-16 Edilon Bv Elemento elastico prefabricado para un conjunto de bloque de soporte de railes.
WO2008087027A1 (fr) * 2007-01-17 2008-07-24 Edilon Sedra Gmbh Rail enrobé
WO2009104948A1 (fr) * 2008-02-21 2009-08-27 Edilon)(Sedra B.V. Procédé de fabrication d'un ensemble bloc de support élastique pour rail

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652495A (en) * 1986-01-31 1987-03-24 Japanese National Railways Resilient coat for tie of direct-connection type track
WO1993006302A1 (fr) * 1991-09-18 1993-04-01 Rainer Noreick Procede et dispositif de fabrication d'un renforcement elastique de rails
EP1197598A1 (fr) 2000-10-10 2002-04-17 Composite Damping Material N.V. (CDM) Amortisseur de vibration pour des rails
JP2002326225A (ja) 2001-05-01 2002-11-12 Misawa Toyo Co Ltd ゴムチップ、及びゴムチップの製造方法
KR20020050095A (ko) 2001-11-21 2002-06-26 김충익 고무주입식 무보수궤도 및 이의 시공방법
KR20040017012A (ko) 2002-08-20 2004-02-26 최진욱 철도 레일 받침대
EP1467023A1 (fr) * 2003-04-11 2004-10-13 Patrick Vanhonacker Système de rail enrobé
WO2006032684A1 (fr) * 2004-09-21 2006-03-30 Feronia S.A. Procédé d'enrobage d'un rail pour véhicule ferroviaire.
ES1065079Y (es) 2006-10-03 2007-09-16 Edilon Bv Elemento elastico prefabricado para un conjunto de bloque de soporte de railes.
WO2008087027A1 (fr) * 2007-01-17 2008-07-24 Edilon Sedra Gmbh Rail enrobé
WO2009104948A1 (fr) * 2008-02-21 2009-08-27 Edilon)(Sedra B.V. Procédé de fabrication d'un ensemble bloc de support élastique pour rail

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2845951A1 (fr) * 2013-09-04 2015-03-11 Prefarails Holding Jaquette pour rail destiné aux véhicules ferroviaires
CN110777573A (zh) * 2019-11-13 2020-02-11 成都市新筑路桥机械股份有限公司 一种埋入式轨道用减振降噪部件及其施工方法
US12152351B2 (en) 2020-12-04 2024-11-26 Progress Rail Services Corporation Track rail fastening system having cantilevered third rail support bracket and direct fixation fastener assembly for same
RU2797059C1 (ru) * 2023-01-10 2023-05-31 Сергей Евгеньевич Шаховец Прирельсовый длинномерный упругий элемент

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