US3289941A - Railway track without ballast - Google Patents

Railway track without ballast Download PDF

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Publication number
US3289941A
US3289941A US416206A US41620664A US3289941A US 3289941 A US3289941 A US 3289941A US 416206 A US416206 A US 416206A US 41620664 A US41620664 A US 41620664A US 3289941 A US3289941 A US 3289941A
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United States
Prior art keywords
blocks
track
rails
platform
sheath
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Expired - Lifetime
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US416206A
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English (en)
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Sonneville Roger Paul
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D'ETNDES FERRORIAIRES Ste
ETNDES FERRORIAIRES SOC D
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ETNDES FERRORIAIRES SOC D
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/008—Drainage of track
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/38—Longitudinal sleepers; Longitudinal sleepers integral or combined with tie-rods; Combined longitudinal and transverse sleepers; Layers of concrete supporting both rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • 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
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
    • E01B1/005—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with sleeper shoes
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair

Definitions

  • the present invention relates to railway tracks and the object of the invention is to arrange the track in such manner as to avoid use of ballast Without this affecting the resilience of the railway track.
  • the resilience of the assembly of the ballast and the platform is characterized by the Miiller-Breslau coefficient K which is defined by the mean pressure in kg./sq. cm. that the lower plane face of each tie would develop to result in the resilient sinking of the tie to a depth of 1 cm. In a good track, which is well maintained and suitable for high speeds, this coefficient K varies from to 20. As the effective area of half a tie of a normal track is of the order of 2,000 sq. cm., each rail would have to transmit to each support on each half tie a force between 20 and 40 tons in order to cause the tie to sink to a depth of 1 cm.
  • ballast obviously results in considerable economy and permits decreasing the opening of tunnels by several decimetres. It also avoids the necessity of cutting into the arch or lowering the floor of the tunnel in order to increase the available space over the vehicles for cantenaries when electrifying an existing railway line,
  • ballast plays an important part in a conventional track it has serious drawbacks, owing to its very nature. As it has no cohesion other than frictional cohesion, it tends to gradually subside under the hammering of the loads and it also becomes clogged up and gradually looses its resilience as it becomes more and more soiled. If it were possible to eliminate the ballast and replace it by a coherent bed, such as a foundation of cement concrete or black concrete (tar-macadam, stones stabilized by the injection of bituminous products, etc.), there would result a considerable economy as concerns maintenance costs.
  • ballast and of the ground are remedied by special means.
  • Such means consist, for example, in placing under the rail rubber pads or sole-plates.
  • the most efiicient devices at the present time are constructed in the following manner.
  • the rails are secured to wide metal sole-plates or pack ing pieces. These metal sole-plates rest on the concrete foundation through the medium of thick rubber pads whose resilience is increased by shaping, grooves or cavities which are formed when moulding the pad. These metal sole-plates are fixed to the floor by bolts which are sealed, screwed or bonded in the concrete, there being interposed between the nut and sole-plate resiliently yieldable element, such as washers having multiple spring steel coils.
  • the rails would tilt and produce an unacceptable increase in the rail track width owing to the transverse forces applied to the rails at the level of the rail heads by the flanges of the wheels, since the length of the sole-plates, measured in the direction perpendicular to the longitudinal axis of the track, is necessarily restricted by the modulus of elasticity of the existing pads and by considerations of cost.
  • the object of the present invention is to provide a railway track system without ballast which remedies the aforementioned drawbacks while possessing the two apparently irreconcilable features namely: a resilience very greatly exceeding that of a conventional track, such as that required for a track laid in urban tunnels, and a precise geometry even in the case of the passage of rapid trains or in sharp bends in which the rails are subjected to high transverse forces.
  • the invention provides a railway track comprising a continuous platform overlying the substructure and provided with aligned cavities in each of which is inserted the lower part of a rail support block the upper surface of which is secured to a rail by means ,of rail fasteners, a sheath of e'lastomer material being fitted on said lower part and being interposed between the walls of the block and the walls of the cavity, the bottom of said sheath, which is incontact with the base of the cavity, having a closed cellular structure.
  • the track maintains a correct geometry, while the resiliently yieldable sheaths, whose resilience is greatly enhanced by the occluded gas in the closed cellular structure of their base, compensate, and even more than compensate, the loss of resilience due to the elimination of the ballast.
  • the continuous platform in which the blocks are inserted can be a floor, a foundation or a concrete flooring, whether the latter contains cement or other binder, such as asphalt.
  • the blocks supporting the rail are advantageously those making up known composite sleepers or ties, namely two concrete blocks each of which is placed under one of the rails and which are interconnected by a section steel strut or spacer member, the platform comprising two rows of cavities corresponding to the two rows of the blocks of the composite ties and to the two rows of rails.
  • blocks of other types could be employed.
  • fasteners employed for fastening the rails to the blocks are preferably fasteners of the type having a double resilience generally employed with composite ties.
  • FIG. 1 is a cross-sectional view of a preferred embodiment of a railway track according to the invention, this section being through a pair of rail support blocks, and
  • FIG. 2 is a sectional view taken along line 22 of FIG. 1.
  • the railway track comprises a continuous platform 1 consisting of a floor, a foundation Or flooring of concrete (cement concrete or black concrete) which overlies the substructure of the tunnnel of the permanent structure or any other support for the track.
  • a continuous platform 1 consisting of a floor, a foundation Or flooring of concrete (cement concrete or black concrete) which overlies the substructure of the tunnnel of the permanent structure or any other support for the track.
  • Formed in this platform are two rows of cavities 2 in which are inserted concrete blocks 3 for supporting the rails R, each row of cavities corresponding to a row of rails.
  • Each cavity of one row is intransverse alignment with the cavity of the other row and the two blocks in these cavities are braced or held spaced apart by a rolled steel section or strut 4 the ends of which are embedded in the two blocks.
  • These blocks and their strut constitute a composite tie or sleeper of known type.
  • the lower part of the blocks 3 inserted in the platform 1 has a rectangular-sided configuration, but it can have some other shape, such as that of a truncated right prism.
  • This lower part is inclosed in a sheath C.
  • This sheath has a base 5 of elastomer material having a closed cellular structure, such as neoprene foam, and four vertical walls corresponding to the four sides of the block 3.
  • the walls 6 are composed of an elastomer material which can also have a cellular structure, if the sheath C is moulded in one piece, or they can have a non-cellular structure if the walls 6 are assembled with, and welded or bonded to, the
  • the liner C must be fluid-tight. It is interposed between the lower part of each block 3 and the corresponding cavity.
  • the Walls 6 have a height of at least 5 cm., except possibly that wall which is nearest to the axis of the track, since this wall can be notched in order to take into account the slope of the platform insuring the flow of water running down to a central channel 7 with which draining passages 8, formed in the platform 1 between the cavities 2, can communicate.
  • the platform 1 is leveled off at its upper part at a level substantially corresponding to that of the upper edges of the walls 6 0f the sheaths C so that the blocks 3 With their sheaths are inserted in the platform 1 to a depth of l at least 5 cm., with the possible exception of the side adjacent the axis of the track.
  • the rails R are preferably secured to the upper face of the blocks 3 in the manner generally adopted at the present time for modern railway tracks on composite ties.
  • a grooved rubber pad 9 between the rail R and the upper face of each block 3 there is interposed a grooved rubber pad 9, the rail being secured by bolts 10 and double elastic fasteners 11, such as those described in French Patent No. 1,004,331, filed on April 5, 1947.
  • the railway track according to the invention is very easily constructed and this is in itself a very important advantage.
  • the rails R of the track are first secured to the concrete blocks 3 by the fasteners 11, then adjusted to their precise geometric position as concerns level and alignment.
  • the rails or the ties are then temporarily held in position and the blocks 3 are provided with their sheath, which, by construction, exactly fits round the outer shape of the blocks without clearance.
  • the inside dimensions of the sheath be slightly less than the outside dimensions of the block 3 so that the sheath is elastically streached when fitted onto the block.
  • the concrete of the platform 1 is then poured and carefully packed under and around the sheaths so that they are closely embedded in the concrete.
  • sheaths which are moulded or composed of assembled elements
  • the concrete of thte platform 1 surrounding the sheaths, which act as framing has no contact with, and absolutely no adherence to, the block supporting the rails.
  • the track according to the invention satisfies the requirements of a track without ballast.
  • the heavy blocks 3 and their doubly elastic fasteners 11 effectively damp the high-frequency vibrations of the rail and they also insure a-correct track geometry.
  • the sheaths C benefit from the exceptional characteristics of the elasticity of elastomers having a closed cellular structure, which associates the elasticity of the bubbles of gas (such as nitrogen) trapped in the perfectly fluidtight elastic enclosure (Mariottes law) and the damping power of the elastomer itself, which is selected not only for its hysteresis but also for its non-aging properties.
  • gas such as nitrogen
  • the damping power of the elastomer itself which is selected not only for its hysteresis but also for its non-aging properties.
  • the sheaths having a base composed of an elastomer having a closed cellular structure thus constitute a pneumatic suspension of the track on its foundation.
  • the concrete blocks placed between the rail and foundation have a large surface area and in particular great length in a direction perpendicular to longitudinal axis of the rail so as to diminish the tendency of the assembly to incline excessively outwardly of the track under the effect of the transverse forces applied on the top of the rail by the flanges of wheels.
  • This length of the blocks must be at least equal to three times the height of the section of the rail.
  • each block 3 and its sheath C is inserted to a depth of atleast 5 cm. in the supporting concrete permits, bearing in mind the weight of the concreteblocks of the tie, opposing the longitudinal expansion forces and creep of the rails without this lifting the assembly of the rail and the blocks fastened thereto.
  • the resilientsupport o'r abutment of the vertical outer face of each block, with respect to the longitudinal axis of the track, against the support of the cavity in which the assemblyis embedded, through the medium of the corresponding wall of the sheath surrounding the block, affords a perfect transverse track stability.
  • the track according to the invention can be constructed at lower cost price with independent concrete blocks without a strut or spacer member, or with a composite assembly of pairs of blocks and struts, depending on the requirements of maintenance and correct track geometry.
  • the preferred embodiment of the invention as described employs concrete blocks, it is owing to the fact that they are non-responsive to the dampness usually prevailing in tunnels and owing to their great weight, which is essential, on the one hand, to impart to the doubly elastic fasteners their maximum efficiency in the damping of high-frequency rail vibrations (sonic frequencies) and, on the other, to impart to this track maximum stability without risk of these blocks and the sheaths surrounding the blocks being lifted out of the cavities of the foundation in which they are embedded.
  • railway track without ballast comprising a continuous platform overlying the substructure of the track, blocks supporting rails which are fastened to the top face of the blocks by rail fasteners, a sheath of elastomer material covering the lower part of each block, and cavities in the platform in which the blocks are respectively inserted, and sheaths being interposed between the faces of the blocks and the faces of the cavities, the sheaths having a bottom wall which is in contact with the base of the cavity and has a closed cellular structure, each sheath having lateral walls which are fixed to the bottom wall in a fluidtight manner, the dimensions of the sheath being such that the walls of the sheath mounted on the block are in an elastically stretched condition.
  • railway track without ballast comprising a continuous platform overlying the substructure of the track, rails, blocks supporting the rails, each of the blocks having a top face, a bottom face and lateral faces, rail fasteners mounted on said blocks and fastening the rails to the top faces of the blocks, and means maintaining the blocks in position relative to the platform, said means consisting of cavities in the platform in which cavities the blocks are respectively inserted, each of the cavities being defined by a base and lateral faces, and sheath means of elastomer material covering the lower portion of each block and interposed between and in adjoining relation to said lateral faces of each of the blocks and the lateral faces of each of the cavities and having a bottom wall which is in contact with the base of the cavity and with the bottom face of the block and has a closed cellular structure, whereby a resilient mounting of the blocks is achieved and transmission of vibrations from the rails to the platform through rigid metal elements is avoided.
  • railway track without ballast comprising a continuous platform overlying the substructure of the track, two rails, a row of composite ties under the rails, each tie having two rail support blocks and a metal strut interconnecting the two blocks and extending tranversely of the rails, each block having a top face, a bottom face and lateral faces, rail fasteners fastening the two rails respectively to the top faces of the blocks, means maintaining the blocks in position relative to the platform, said means consisting of two rows of cavities in the platform in which the blocks are respectively inserted, each of the cavities being defined by a base and lateral faces, and sheath means of elastomer material covering the lower portion of each block interposed between and in adjoining rela tion to said lateral faces of each of the blocks and said lateral faces of each of the cavities and having a bottom wall which is in contact with the base of the cavity and with the bottom face of the block and has a closed cellular structure, whereby a resilient mounting of the tie on the platform is achieved and transmission of vibration
  • railway track without ballast comprising a continuous platform overlying the substructure of the track, two rails, a row of composite ties under the rails, each tie having two rail support blocks and a metal strut interconnecting the two blocks and extending transversely of the rails, each block having a top face, a bottom face and lateral faces, rail fasteners fastening the two rails respectively to the top faces of the blocks, means maintaining the blocks in position relative to the platform, said means consisting of two rows of cavities in the platform in which the blocks are respectively inserted, each of the cavities being defined by a base and lateral faces, and sheath means of elastically yieldable neoprene covering the lower portion of each block interposed between and in adjoining relation to said lateral faces of each of the blocks and said lateral faces of each of the cavities and having a bottom wall which is in contact with the base of the cavity and with the bottom face of the block and is of foam neoprene, whereby a resilient mounting of the tie on the platform is achieved
  • a railway track comprising composite ties each having two blocks which are interconnected by a strut and are disposed in cavities in a platform underlying the ties; a sheath of elastomer material fitted on the lower portion of each block and interposed between the block and the faces of said cavity, said sheath comprising a bottom wall portion and lateral wall portions extending upwardly from and connected to said bottom wall portion.
US416206A 1963-12-12 1964-12-07 Railway track without ballast Expired - Lifetime US3289941A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR956997A FR1387179A (fr) 1963-12-12 1963-12-12 Voie ferrée sans ballast et dispositif pour sa pose

Publications (1)

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US3289941A true US3289941A (en) 1966-12-06

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US416206A Expired - Lifetime US3289941A (en) 1963-12-12 1964-12-07 Railway track without ballast

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US (1) US3289941A (es)
AT (1) AT245022B (es)
BE (1) BE656632A (es)
CH (1) CH435350A (es)
DE (1) DE1275081B (es)
DK (1) DK120402B (es)
ES (1) ES307352A1 (es)
FI (1) FI45190C (es)
FR (1) FR1387179A (es)
GB (1) GB1033350A (es)
LU (1) LU47574A1 (es)
NL (1) NL145618B (es)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762641A (en) * 1971-01-05 1973-10-02 E Schubert Railroad track
US3907200A (en) * 1972-10-24 1975-09-23 Regie Autonome Transports Track and method of laying track on a concrete road bed
US4216904A (en) * 1976-07-23 1980-08-12 Robert Vivion Device for fastening a railway track on sleepers disposed end to end
EP0049879A1 (en) * 1980-10-10 1982-04-21 Stedef SA Railway sleeper cover
US4489884A (en) * 1980-10-10 1984-12-25 Stedef S.A. Railroad tie cover
US4609144A (en) * 1984-04-27 1986-09-02 Stedef S.A. Railroad tie cover
US5551631A (en) * 1992-07-20 1996-09-03 Allevard Rail support device for unballasted railway track
FR2731238A1 (fr) * 1995-03-02 1996-09-06 Vagneux Traverses Beton Procede de pose d'une voie ferree et dalle prefabriquee pour la mise en oeuvre de ce procede
US5713517A (en) * 1995-09-11 1998-02-03 Allevard Sock for a ballastless rail track tie
WO2002002872A1 (en) * 2000-06-30 2002-01-10 Sonneville International Corporation Block boot for railway track systems
US20060097064A1 (en) * 2004-11-08 2006-05-11 Tom English Elastomeric railway tie pad
CN102605684A (zh) * 2012-04-18 2012-07-25 北京市市政工程设计研究总院 低高度装配式弹性短枕式整体道床及其施工方法
US20140183271A1 (en) * 2011-04-05 2014-07-03 Newstyle Nominees Pty. Ltd. Rail track sleeper support

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Publication number Priority date Publication date Assignee Title
DE2244007C2 (de) * 1972-06-27 1983-12-22 Jacob Albertus 3723 Bilthoven Eisses Gleis
US4079889A (en) * 1976-02-09 1978-03-21 The Raymond Lee Organization, Inc. Railroad track rail
NL160351C (nl) * 1976-02-25 1979-10-15 Nl Spoorwegen Nv Werkwijze voor het vervaardigen van een ballastloos spoor.
US4275832A (en) * 1977-11-18 1981-06-30 Dunlop Limited Resilient support means
US4266719A (en) * 1978-06-30 1981-05-12 Clouth Gummiwerke Aktiengesellschaft Track mounting assembly and sound-damping system therefore
DE2828713A1 (de) * 1978-06-30 1980-01-10 Clouth Gummiwerke Ag Schalldaemmende schienenlagerung
US4303199A (en) * 1978-08-22 1981-12-01 Eisses Jacobus A Restored vibration isolation for railway tracks
GB2030200B (en) * 1978-08-31 1982-12-15 Ohno I Railway bed or sleeper
DE3030936A1 (de) * 1980-08-16 1982-04-01 Clouth Gummiwerke AG, 5000 Köln Einrichtung zum lagern von schienen fuer schienenfahrzeuge
AT377805B (de) * 1983-04-01 1985-05-10 Getzner Chemie Gmbh & Co Daemmzwischenlage fuer die elastische lagerung der bettung von gleiskoerpern
DE3315697A1 (de) * 1983-04-29 1984-11-08 Klöckner-Werke AG, 4100 Duisburg Schallminderndes gleiselement
FR2574439B1 (fr) * 1984-12-06 1987-01-30 Ressorts Ind Semelle antivibratile pour la suspension d'un rail de chemin de fer et chausson de voie sans ballast comportant une telle semelle
FR2648489B1 (fr) * 1989-06-19 1991-09-27 Allevard Ind Sa Systeme de voie ferree sans ballast
AT402210B (de) * 1990-05-07 1997-03-25 Getzner Chemie Gmbh & Co Gleiskörper
DE9202613U1 (es) * 1992-02-28 1992-04-30 Saar-Gummiwerk Gmbh, 6648 Wadern, De
US5485955A (en) * 1994-07-11 1996-01-23 Kerr-Mcgee Chemical Corporation Rail-tie fastening assembly for concrete tie
CH691602A5 (it) * 1996-08-30 2001-08-31 Rex Articoli Tecnici S A Scarpa in gomma di rivestimento di una traversina in cemento per binari ferroviari e montaggio della scarpa in gomma in una traversina.
FR2774708B1 (fr) * 1998-02-09 2003-01-31 Stradal Sa Traverse en beton arme pour voie ferree en zone urbaine

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US1033032A (en) * 1912-02-24 1912-07-16 Marshall E Morel Railroad-tie.
US1191044A (en) * 1916-02-09 1916-07-11 Waldo Duane Trow Railway-tie.
US2719676A (en) * 1955-10-04 Road bed and track for railroads
US3206123A (en) * 1962-05-01 1965-09-14 Julian L Cone Jr Rail clip

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DE473611C (de) * 1924-11-13 1929-03-18 Emil Cahn Oberbau fuer Untergrundbahnen o. dgl.
FR1323628A (fr) * 1962-02-27 1963-04-12 Dispositif de fixation de rails facilitant la pose de ces derniers en longues barres

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Publication number Priority date Publication date Assignee Title
US2719676A (en) * 1955-10-04 Road bed and track for railroads
US1033032A (en) * 1912-02-24 1912-07-16 Marshall E Morel Railroad-tie.
US1191044A (en) * 1916-02-09 1916-07-11 Waldo Duane Trow Railway-tie.
US3206123A (en) * 1962-05-01 1965-09-14 Julian L Cone Jr Rail clip

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762641A (en) * 1971-01-05 1973-10-02 E Schubert Railroad track
US3907200A (en) * 1972-10-24 1975-09-23 Regie Autonome Transports Track and method of laying track on a concrete road bed
US4216904A (en) * 1976-07-23 1980-08-12 Robert Vivion Device for fastening a railway track on sleepers disposed end to end
EP0049879A1 (en) * 1980-10-10 1982-04-21 Stedef SA Railway sleeper cover
US4356968A (en) * 1980-10-10 1982-11-02 Stedef S.A. Railroad tie cover
US4489884A (en) * 1980-10-10 1984-12-25 Stedef S.A. Railroad tie cover
US4609144A (en) * 1984-04-27 1986-09-02 Stedef S.A. Railroad tie cover
US5551631A (en) * 1992-07-20 1996-09-03 Allevard Rail support device for unballasted railway track
FR2731238A1 (fr) * 1995-03-02 1996-09-06 Vagneux Traverses Beton Procede de pose d'une voie ferree et dalle prefabriquee pour la mise en oeuvre de ce procede
US5713517A (en) * 1995-09-11 1998-02-03 Allevard Sock for a ballastless rail track tie
WO2002002872A1 (en) * 2000-06-30 2002-01-10 Sonneville International Corporation Block boot for railway track systems
US6364214B1 (en) * 2000-06-30 2002-04-02 Sonneville International Corporation Block boot for railway track systems
GB2379235A (en) * 2000-06-30 2003-03-05 Sonneville Internat Corp Block boot for railway track systems
GB2379235B (en) * 2000-06-30 2003-06-11 Sonneville Internat Corp Block boot for railway track systems
US20060097064A1 (en) * 2004-11-08 2006-05-11 Tom English Elastomeric railway tie pad
US7278588B2 (en) 2004-11-08 2007-10-09 Northwest Rubber Extruders, Inc. Elastomeric railway tie pad
US20140183271A1 (en) * 2011-04-05 2014-07-03 Newstyle Nominees Pty. Ltd. Rail track sleeper support
US9689116B2 (en) * 2011-04-05 2017-06-27 Newstyle Nominees Pty Ltd. Rail track sleeper support
CN102605684A (zh) * 2012-04-18 2012-07-25 北京市市政工程设计研究总院 低高度装配式弹性短枕式整体道床及其施工方法

Also Published As

Publication number Publication date
DE1275081B (de) 1968-08-14
NL6414457A (es) 1965-06-14
DK120402B (da) 1971-05-24
LU47574A1 (es) 1965-02-12
AT245022B (de) 1966-02-10
CH435350A (fr) 1967-05-15
FI45190B (es) 1971-12-31
FR1387179A (fr) 1965-01-29
BE656632A (es) 1965-04-01
ES307352A1 (es) 1965-10-01
NL145618B (nl) 1975-04-15
FI45190C (fi) 1972-04-10
GB1033350A (en) 1966-06-22

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