EP0945547A1 - Dispositif anti-bruit pour voies de chemin de fer - Google Patents

Dispositif anti-bruit pour voies de chemin de fer Download PDF

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Publication number
EP0945547A1
EP0945547A1 EP99104243A EP99104243A EP0945547A1 EP 0945547 A1 EP0945547 A1 EP 0945547A1 EP 99104243 A EP99104243 A EP 99104243A EP 99104243 A EP99104243 A EP 99104243A EP 0945547 A1 EP0945547 A1 EP 0945547A1
Authority
EP
European Patent Office
Prior art keywords
track
damping body
molded parts
plates
damping
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
EP99104243A
Other languages
German (de)
English (en)
Other versions
EP0945547B1 (fr
Inventor
Johann Rath
Karl Baumgarten
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0945547A1 publication Critical patent/EP0945547A1/fr
Application granted granted Critical
Publication of EP0945547B1 publication Critical patent/EP0945547B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • 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
    • E01B2204/01—Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete
    • 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
    • E01B2204/11—Embedded tracks, using prefab elements or injecting or pouring a curable material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling

Definitions

  • the invention relates to a device for damping of sound emissions with at least one of the Damping body assigned to the sound emission source.
  • IR and ICE trains at higher speeds require fixed lanes, which are usually made of concrete.
  • these firm roads do not have the positive ones Sound absorption properties of a ballast bed and are consequently higher at 3 to 5 dB (A) in sound radiation.
  • the object of the invention is these unsatisfactory noise protection measures in Improve rail transport, taking noise protection measures both for using a track body Ballast bed as well as for a track body with fixed Roadway can be applied.
  • a device and the use of this device on or proposed in track systems that at least has a damping body.
  • the damping body is so used in and / or on the track bed that exposed, exposed to the climatic conditions Areas result.
  • Its surface structure is designed in such a way that the same wells having. These deepenings are marked by a Cover closed, that closed underneath Cavities result. Now act on sound waves the cover, penetrate it and get into the cavities in which the sound "runs dead".
  • the cover and / or the Sound absorbing body Preferably the cover has a smooth surface so that this cover can be easily cleaned respectively is self-cleaning.
  • the cover essentially shields the depressions completely dependent on external influences. she protects the wells against dirt and is clogged by dust, leaves, flowers, Water, snow, etc.
  • the film is a copolymer-based (polystyrene) Foil.
  • polystyrene polystyrene
  • Polystyrene film has significant advantages compared to a normal polystyrene film. She owns very high tensile strength and puncture resistance, it is very flexible and UV-resistant. By storing appropriate color components it is possible to film the particular circumstances and adapt wishes.
  • the depressions in the damping body can be different Way are generated. So is a mechanical treatment of the surface of the Damping body possible. One more way an impression process is used to produce the depressions. Here are the wells by printing a corresponding surface of a Generated negative form. It is also possible to provide a material that is open-pored Has surface structure. So there are curing Plastic foams, gas concrete, etc. that Form open pores on their surface.
  • a closed-cell rigid foam of high density wherein at least one surface is treated in such a way that there are depressions.
  • Expandable polystyrene is the preferred material for this, as can PP foam (polypropylene), PE foam (polyethylene), PUR foam (polyurethane), MH foam (melamine resin) and PVC foam (polyvinyl chloride) will.
  • materials have proven to have a density greater than 30 kg / m 3 , preferably greater than 60 kg / m 3 to 70 kg / m 3 and higher.
  • the high density of the damping body causes the greatest possible absorption of sound (swallowing the sound waves) inside this body.
  • the surface of the damping body is provided with correspondingly soundproofed recesses which are connected to a corresponding cover.
  • damping body with attached cover to put on each other in sandwich construction.
  • the damping body as well as the cover can have materials of different densities.
  • the damping body is preferably designed as a molded part, so that he has different circumstances is adjusted.
  • a molded part can be produced in this way as a damping body at least one outside of a Track is assigned.
  • the molding has one Height that is at least the height of the axis of the wheels the train carriage corresponds. At least that of the track facing exposed areas of the molded part are provided with the cover.
  • Several molded parts can be connected so that they a continuous one according to the course of the track train low noise insulation.
  • the so molded parts on the side act as low, soundproofing wall that does not impair visibility, by taking the wheels and the Reflect the outgoing track sound and partly steam.
  • the molded parts can, for example, in Cross-section have an L-shape.
  • a track body with a solid carriageway is inside of the space enclosed by the tracks to take a sound absorbing measure.
  • This measure is also for a track body Ballast bed provided.
  • the damping body as one, preferably in substantially flat plate is formed.
  • This Plate can be made in one piece (in cross section seen the track bed) as well as from several Sheets or molded parts that are connected together will be built up. At least that of the surrounding area, so the climatic conditions, facing areas the plate, here called exposed areas, are provided with the cover.
  • the plate is placed in the track bed.
  • Figure 1a shows a schematically shown Damping body 10. In its exposed area 12 it has several depressions 14. However, it is also possible that the damping body 10 on all outer surfaces 16 has depressions 14. In Figure 1 there are different types of recesses shown. They are also symmetrical arranged wells 14, the same Have shape, can be trained. In test series it has proven to be advantageous as a damping body material a high density material to use. Polystyrene is particularly suitable (EPS). This polystyrene has a closed cell Building on so that at a relative light body reaches a high density can be.
  • EPS Polystyrene
  • the depressions 14 can be different Procedure can be achieved. So on the one hand is a mechanical one Removal of the appropriate material for Training of the wells 14 possible. On the other hand can already the recesses 14 at the production of a molded part by printing an Negative form can be achieved.
  • FIG. 1b A preferred embodiment is shown in FIG. 1b of the damping body 10 shown.
  • same components with the same reference numerals as provided in Figure 1a.
  • the depressions 14 are preferably grid-like square or another structured Image on (seen in top view).
  • the outer surface sections 18 are essentially again on one level.
  • the depressions 14 are like this trained to be a substantially cuboid Has shape.
  • the outer surface sections 18 form 14 pillars with the walls of the recesses 17 out.
  • the cover 20 lies flush on the Support pillars 17 (see Figure 1b).
  • PS polystyrene film
  • cover there are other materials for the cover possible that have roughly the same material properties how the copolymer film should have. So a cover is also conceivable as in substantially thin plate is formed, for example made of aluminum or another material, this plate being tight on the damping body 10 rests and the recesses 14 closes.
  • the Damping body 10 here the polystyrene part, welded to the copolymer film 20 or glued or otherwise connected.
  • closed cavities 22 are formed.
  • This closed cavities 22 consist of a through the recess 14 formed section and a Foil section 24.
  • the sound waves are, so to speak, in the cavity 22 caught, that is, by appropriate Design of the cavities 22 one to one annihilation of the Sound waves can result or take place high damping with dissipation of energy in deeper layers of the damping body 10.
  • the Damping body 10 acts here due to its high Density as an absorption body for the sound waves.
  • the cover 20 can also be designed such that it absorbs some of the sound.
  • Damping body of high density results in a robust Sound absorption system.
  • Figure 3a shows an application of the system according to the invention.
  • the structure specifically represents a track body with a fixed carriageway.
  • a concrete trough 200 is inserted into the ground, which carries the sleepers (not shown) on which the tracks 400 are attached.
  • the tracks 400 have a rail head 410, an outer side 420, an inner side 430 and a rail foot 440.
  • the tracks 400 are connected via their rail foot 440 in a known manner to the sleepers and thus to the concrete trough 200.
  • Molded parts 120, 140 are inserted into the concrete trough 200 on both sides.
  • the molded parts 120, 140 consist, as already according to the exemplary embodiment described in FIG. 1, of polystyrene with the corresponding recess structure of the surface.
  • the polystyrene molded parts 120, 140 have a density preferably greater than 60 to 70 kg / m 3 . In corresponding test series, it has proven to be advantageous to design the molded parts 120, 140 to be essentially L-shaped, areas of height extending up to the axis of the wheels of the towing vehicles.
  • the molded parts 120, 140 have a substantially flat area 122, 142, which extends from the outside 420 of the track 400.
  • the flat area 122, 142 has a height h1, which essentially corresponds to the height of the tracks 400.
  • the end face of the flat region 122, 142 facing the outside 420 of the track 400 has an outer contour 126, 146 converging with the track contour.
  • molded parts 120 and 140 are symmetrical related to a central axis that between the tracks runs, are built, is shown below the detailed structure of the molded parts 120 and 140 described using the molded part 120.
  • a recess 128 is provided on its upper side 127, those for receiving a fastener, designed here as a fastening rail 190, serves.
  • the flat area 122, 142 adjoins an area running up an incline 124, 144.
  • the area that runs up 124, 144 has a height h2 that is essentially corresponds to the height of the axle of the wheels of the towing vehicle.
  • the upward region 124, 144 makes an angle with the flat region 122, 142 on. This bevel has changed within test series as a particularly low noise level proven.
  • the cover with copolymer film must, however not limited to the areas just described, but it is also possible to only certain Subareas of the molded part 120, 140 with the Cover.
  • the plates 160, 180 are inserted. However, only one is conceivable Plate or several plates to use.
  • the plates 160, 180 have a height h3, which essentially corresponds to the height of the track 400.
  • the one facing the inside 430 of the track 400 End face has one to this inside 430 converging outer contour 164, 184.
  • the converging outer contour 164, 184 points in an eruption in their upper area that extends up extends into the surface 162 or 182, on. This outbreak leaves the for Wheel flanges of the wheels of the rail vehicle are necessary Free space.
  • the plates 160 180 due to their outer contours 164, 184 in substantially close to track 400.
  • the plate 160 has one in its surface 162 Recess 166 so that the outer contour 164 opposite side face a spring-shaped Contour 167 results.
  • the top 162 of the Plate 160 is dot-dashed illustrated copolymer film 170 coated.
  • the plate 180 is constructed in accordance with the plate 160. It also has a through the copolymer film 172 coated surface 182.
  • the outer contour 184 is the Adjusted outer contour of the rail 400.
  • the the Outer contour 184 opposite side surface 185 is with a groove-shaped recess 186 provided with the spring-shaped recess 167 and the mounting rail 190 corresponds. Consequently it is possible that the plates 160, 180 form-fitting interlock and the mounting rail 190 is flush with the surfaces 162, 182.
  • Other positive connections to Example dovetail connections etc., are also possible. It is also possible not just the surfaces 162, 182 with the copolymer film to provide, but also the rest Areas of the plates 160, 180 or partial areas of these.
  • Soundproofing system 100 even further improve if under the concrete tub 200 respectively a damping layer between the thresholds Concrete tub 200 and sub-floor is attached.
  • This Damping layer can also be made in the longitudinal direction of the rail Installed butt to butt, preferably elasticized polystyrene plates 300 exist. These polystyrene plates 300 serve to structure-borne noise absorb in the track bed of moving trains. They work just like those from the construction sector well-known "impact sound insulation”.
  • the dimensions of the molded parts 120, 140 and the plates 160, 180 can be chosen so that they are the respective course of the track in the longitudinal direction of the rail as well as for track increases, for example in the curve area, can adjust.
  • fastening rails 190 For fastening panels 160, 180 and molded parts 120, 140 in the longitudinal direction of the rail serve fastening rails 190.
  • These mounting rails 190 have an extension in the longitudinal direction of the rail, over the plates 160, 180 and molded parts 120, 140 protrudes on both sides.
  • the mounting rails 190 here form end regions 193, 194, which in the adjacent plates, not shown, respectively Intervene with molded parts.
  • she have mounting holes 192 through which corresponding fasteners, not shown for connecting fastening rail 190 and Plate 160, 180 or molded part 120, 140 be introduced.
  • Form mounting rails 190 so that they form overlapping end regions 193, 194 which interlock by means of positive connections.
  • the mounting rails 190 are preferred made of reinforced concrete or steel and ensure even at high train speeds a secure hold of the sound attenuation system 100.
  • the sound attenuation system 100 consisting of depressions having EPS molded parts 120, 140 and Plates 160, 180 made with the copolymer film or covered with a PS film, for example are easy to recycle as both Materials made from the same basic raw material, polystyrene are manufactured. Another advantage is to be seen in the fact that the permanently high sound-absorbing Properties due to the coverage with the copolymer film even after many years are to be expected since the indentations are not clogged by dust, water, etc. Through the The sound damping system is material properties 100 flame retardant, essentially damage-free accessible and through the covering with the Easy to keep film clean. Through the neutral Properties of the plastic material are none Outgassing or flooding to expect the same.
  • the system is therefore hygienic and environmentally friendly to handle. After usage the molded parts 120, 140 and plates 160, 180 together with the copolymer film disposed of in an environmentally friendly manner be reused. So is a subsequent one Shredding possible, so fillers for others To get applications.
  • the molded parts 120, 140 and those in the track bed inserted plates 160, 180 are here how preceded by a track body with a fixed Roadway already described on the sleepers.
  • the ballast bedding extends to the outskirts of the molded parts 120, 140 to secure anchoring to get this in the substructure. With others structural conditions is a deeper anchoring the molded parts 120, 140 in the substructure as well like their other spatial design possible. So can the surfaces facing the tracks 400 to Example formed in the form of a concave curve be. Other surfaces can also be made with the copolymer film to be over the top. Also, as before already described, other materials both for the molded parts 120, 140 as well as for the covering, but which essentially have the same material properties have to be used.
  • FIG. 3b of the sound attenuation system 100 Another fastening option is shown in FIG. 3b of the sound attenuation system 100.
  • This type of attachment is both for using a track body solid roadway, as well as a track body Ballast bed usable.
  • this mounting option has a tensioning device 500 on.
  • the tensioning device 500 exists from a clamping part 510, which is transverse to the longitudinal direction of the rail below track 400 in the area the threshold 450 extends. It preferably points a length that is essentially with the outer edge of the molded parts 120 or 140 completes.
  • the attachment 540 encompasses the clamping part 510.
  • the clamping part 510 engages in the lower areas of the outer surfaces 121 and 141 of the Moldings 120 and 140, respectively on the undersides of the molded parts 120 or 140 attached or introduced Counterparts 520 and 530, respectively.
  • This Counterparts 520, 530 can be in the form, for example be formed by elbows during the manufacturing process foamed into the molded parts 120, 140 become.
  • others are also constructive Embodiments of counterparts 520, 530 with to be considered as falling within the scope of the invention.
  • the clamping part 510 thus engages in recesses 521 and 531 of the counterparts 520, 530 a, which by means of screw connections or other constructive embodiments a bracing and a secure holding of the molded parts 120, 140 and the plates 160, 180 guaranteed in the track body is.
  • the clamping device 500 By appropriate design of the counterparts 520, 530 and the clamping part 510 can by the clamping device 500 an adjustable clamping force the moldings 120, 140 and the plates 160, 180 be exercised.
  • the molded parts 120, 140 and Plates 160, 180 are thus close to the inside 430 or outside 420 of the Track 400 at. By increasing the tension it is possible to slightly incline it the molded parts 120, 140 or the plates 160, 180 to achieve, so that a self-cleaning of the sound attenuation system 100 is made possible.
  • the molded parts 120, 140 preferably have here or the plates 160, 180 water passage openings. It is also possible to choose between the Moldings 120, 140 and plates 160, 180 in Rail longitudinal direction seen to the subsequent Molded parts or plates a narrow Gap to be provided as a water passage.
  • the fastening system thus fulfills both a carrying function as well as a tension function.
  • the sound insulation system 100 is so firmly attached to the track body, that relining on one Track body with ballast bed largely omitted can be. Even with a track body on solid roads, these positive properties result.
  • the sound attenuation system 100 is simple and quick to assemble, therefore easy disassembled, so that possible repair work can be carried out quickly and easily.
  • the Sound absorption system 100 lies securely in the track body, so that possible suction effects (negative pressure) or corresponding overpressure loads on the passing vehicle Trains do not affect it.
  • the damping system can be connected to the respective Needs and the course of the track optimally adapted become. So are gradients and Curve sections can be equipped with it.
  • the system is not only usable for new track systems, but also existing track systems optimally adapted to the corresponding needs, that means with sound-absorbing measures accordingly upgraded the solution according to the invention become.
  • Through appropriate material selection and a possible sandwich construction are also higher reductions in the radiated Sound level conceivable.
  • the only up to the axis of the wheels of the molded parts reaching 120, 140 do not obstruct the view of the passengers or for those living on the railway line Population. So come to the positive Soundproofing properties of the soundproofing system 100 also positive aesthetic aspects.
  • the color of the system can also respective landscape and / or Wishes are taken into account.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Railway Tracks (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
EP99104243A 1998-03-21 1999-03-03 Dispositif anti-bruit pour voies de chemin de fer Expired - Lifetime EP0945547B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19812481 1998-03-21
DE19812481A DE19812481C2 (de) 1998-03-21 1998-03-21 Vorrichtung zur Dämpfung von Schallemissionen an Gleisanlagen

Publications (2)

Publication Number Publication Date
EP0945547A1 true EP0945547A1 (fr) 1999-09-29
EP0945547B1 EP0945547B1 (fr) 2005-01-26

Family

ID=7861823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104243A Expired - Lifetime EP0945547B1 (fr) 1998-03-21 1999-03-03 Dispositif anti-bruit pour voies de chemin de fer

Country Status (4)

Country Link
EP (1) EP0945547B1 (fr)
AT (1) ATE287989T1 (fr)
DE (1) DE19812481C2 (fr)
WO (1) WO1999049134A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1014215A3 (nl) * 2001-06-06 2003-06-03 G S Rand B V B A Fa Dwarsligger met een regelbare demping en stijfheid voor een spoorweg.
EP1336695A1 (fr) * 2002-02-14 2003-08-20 Waldner Labor- und Schuleinrichtungen GmbH Dresden Elément de protection sonore en forme de plaque
EP1342857A2 (fr) * 2002-02-28 2003-09-10 Isopol S.r.l. Element de revetement avec forts proprietes d'absorption acoustique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10020593A1 (de) * 2000-04-27 2001-10-31 Krenn Franz Xaver Vorrichtung samt Verfahren zur End-Sanierung und/oder Co-Umwidmung und Multi-Nutzung von Bahnstrecken (Gleiskörper), namentlich aufgelassener, sowohl als Zug- als auch als Rad-, Krad-, Rollstuhl- und Kfz-Weg etc.
DE10033000A1 (de) * 2000-07-06 2002-01-17 Thyssen Krupp Materials & Serv Schallgedämmter schotterloser Gleisoberbau für Schienenfahrzeuge sowie Schallabsorptionselement
DE10251506A1 (de) * 2002-11-05 2004-07-22 Fagerdala World Foams Ab Schallschutzwände
DE102008002836A1 (de) 2008-04-30 2009-11-05 Msb-Management Gmbh Niedrige Lärmschutzwand an Gleisen
AT522999A1 (de) * 2019-10-01 2021-04-15 Delta Bloc Int Gmbh Schallabsorber

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622430A (en) * 1969-11-24 1971-11-23 Peter L Jurisich Dimpled sheet structural laminate
US3887031A (en) * 1973-06-11 1975-06-03 Lockheed Aircraft Corp Dual-range sound absorber
DE3134473A1 (de) * 1981-09-01 1983-03-10 Dyckerhoff & Widmann AG, 8000 München Schotterloser oberbau fuer schienenbahnen
DE3827547A1 (de) * 1988-08-13 1990-03-15 Zueblin Ag Schallabsorptionskonstruktion fuer schotterlose eisenbahnoberbauten
NL9400910A (nl) * 1994-06-06 1996-01-02 Veldhoen Raalte B V Samenstel voor de geluidsisolatie van een spoorbaan.
DE29705321U1 (de) * 1997-03-25 1997-05-22 Frottier, Jean-Pierre, 65203 Wiesbaden Schienengleis mit Schallschluckmaßnahmen
WO1997045592A1 (fr) * 1996-05-29 1997-12-04 Gmundner Fertigteile Gesellschaft Mbh & Co. Kg Dispositif d'insonorisation pour voies ferrees

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19501696A1 (de) * 1995-01-20 1996-08-01 Egon Turba Geräuscharmer Gleiskörper

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622430A (en) * 1969-11-24 1971-11-23 Peter L Jurisich Dimpled sheet structural laminate
US3887031A (en) * 1973-06-11 1975-06-03 Lockheed Aircraft Corp Dual-range sound absorber
DE3134473A1 (de) * 1981-09-01 1983-03-10 Dyckerhoff & Widmann AG, 8000 München Schotterloser oberbau fuer schienenbahnen
DE3827547A1 (de) * 1988-08-13 1990-03-15 Zueblin Ag Schallabsorptionskonstruktion fuer schotterlose eisenbahnoberbauten
NL9400910A (nl) * 1994-06-06 1996-01-02 Veldhoen Raalte B V Samenstel voor de geluidsisolatie van een spoorbaan.
WO1997045592A1 (fr) * 1996-05-29 1997-12-04 Gmundner Fertigteile Gesellschaft Mbh & Co. Kg Dispositif d'insonorisation pour voies ferrees
DE29705321U1 (de) * 1997-03-25 1997-05-22 Frottier, Jean-Pierre, 65203 Wiesbaden Schienengleis mit Schallschluckmaßnahmen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1014215A3 (nl) * 2001-06-06 2003-06-03 G S Rand B V B A Fa Dwarsligger met een regelbare demping en stijfheid voor een spoorweg.
EP1336695A1 (fr) * 2002-02-14 2003-08-20 Waldner Labor- und Schuleinrichtungen GmbH Dresden Elément de protection sonore en forme de plaque
EP1342857A2 (fr) * 2002-02-28 2003-09-10 Isopol S.r.l. Element de revetement avec forts proprietes d'absorption acoustique
EP1342857A3 (fr) * 2002-02-28 2004-03-17 Isopol S.r.l. Element de revetement avec forts proprietes d'absorption acoustique

Also Published As

Publication number Publication date
DE19812481C2 (de) 2002-08-22
EP0945547B1 (fr) 2005-01-26
DE19812481A1 (de) 1999-09-30
WO1999049134A1 (fr) 1999-09-30
ATE287989T1 (de) 2005-02-15

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