EP0737778B1 - Railway with sound-proofing provision - Google Patents
Railway with sound-proofing provision Download PDFInfo
- Publication number
- EP0737778B1 EP0737778B1 EP19960200998 EP96200998A EP0737778B1 EP 0737778 B1 EP0737778 B1 EP 0737778B1 EP 19960200998 EP19960200998 EP 19960200998 EP 96200998 A EP96200998 A EP 96200998A EP 0737778 B1 EP0737778 B1 EP 0737778B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rails
- sound
- layer
- foundation bed
- railway
- 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.)
- Expired - Lifetime
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
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
-
- 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
- E01B1/001—Track with ballast
-
- 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
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/11—Embedded tracks, using prefab elements or injecting or pouring a curable material
Definitions
- the invention relates to a railway, wherein the rails are supported by an essentially compact foundation bed made of, for example, concrete or steel, which foundation bed essentially spans at least the width of the vehicle moving along the rails and wherein said foundation bed is covered with a layer of material such that the sound produced by a vehicle moving along the rails is substantially damped.
- the vehicles are, for example, mobile cranes, trains, trams, and also guided buses.
- Such a railway construction is known from EP-A-0404756.
- the rails can be embedded in a sound proofing material which may be formed of a mix of rubber particles and stone chips embedded in a polyurethane or dispersion acrylic resin binder.
- the known system has as a disadvantage that the sound absorbing abilities are not optimised, that the specific shape of a profile of the sound demping layer cannot be easily formed and that a relatively complex dewatering facility needs to be applied.
- the railway construction according to the present invention is characterised in that the damping material comprises asphalt or asphalt concrete with chips of stone-like material bound by a bituminous binder material and having an open pore structure of at least 10%, preferable at least 20% and defining a longitudinal rib to the side of the rails integrally formed with said layer of damping material.
- a surprisingly expedient reduction or damping of sound is achieved by covering the foundation bed with a layer of porous, bituminously bound material which absorbs rather than reflects, and reduces the emission of vibrational noise.
- This layer of material preferably contains a mixture of chips of stone-like material suitably selected according to chip size, which chips are bonded by means of a bituminous, viscoelastic material.
- suitable compositions of the material reference is made to, for example, the Standard RAW provisions, pp.
- bituminously bound material with open pores can be particularly easily installed and has a favourable service life.
- use can thus be made of a material that has already been used in road-building for decades, the processing and use properties of which are by now thoroughly known.
- the material can be prepared in a so-called asphalt preparation plant.
- the sound-damping layer of material will be water-permeable, so that a suitable profile can be used without the need for an additional water draining facility, the longitudinal rib being constructed integrally with the sound-damping layer of material to the side of the railway.
- the layer of porous, bound material for example the bituminously bound material with open pores
- a foundation bed made of sand optionally topped with a bed of gravel.
- foundation beds made of other solid materials aluminium, wood, and the like are also conceivable.
- this can be of the type over which the vehicle moves, but also of the type from which the vehicle is suspended.
- the material can easily be adhesively bonded to the foundation bed by means of an asphalt binding layer or similar material; by tailoring the chip size of the stone-like material and the ratio of bituminous binder to fillers, the pore size and pore density can be varied within a wide range, as a result of which the material properties of the sound-damping layer can be adapted to the (sound) conditions; the material is inexpensive; the material can be recycled; a considerable sound reduction is achieved; a number of expedient application techniques are available, which have already proved themselves through long usage in road-building; compaction, as is customary in road-building, is not required, or is required only to a limited extent, and can be achieved by means of a vibrating mechanism instead of road rollers, as are used in road-building.
- the drawing shows a view of the profile of a double railway 1 on a foundation, which will be described in more detail.
- Four rails 2 are depicted; two adjacent rails 2 each for guiding a vehicle 5.
- the rails 2 lie on a foundation bed 3, in this case made of concrete.
- This foundation bed 3 is embedded in a bed of sand 4.
- the foundation bed 3 can also be part of a bridge.
- the foundation bed 3 is an essentially compact, continuous slab or plate which is parallel to the rails 2.
- the foundation bed 3 is composed of a number of prefabricated slab parts or plate parts, made of for example concrete or steel, mounted behind and/or next to one another.
- the foundation bed 3 is, as depicted, covered with a sound-proofing layer 6 in accordance with the invention.
- the rails are recessed both into the sound-proofing layer 6 and into the foundation bed 3.
- the rails 2 may, however, also be recessed exclusively into the sound-proofing layer 6, and thus be located on top of the foundation bed 3. In that case, however, the sound reduction is lower. It is even possible to fit the rails 2 on top of the sound-proofing layer 6, in which case, however, the sound reduction is likewise limited with respect to the embodiment shown in the drawing.
- the sound-proofing layer 6 is profiled, and has a longitudinal rib 7.
- This longitudinal rib 7 can be constructed such that the gap with respect to the underside of the vehicle 5 is narrowed to a certain degree in order in this way to damp the sound still further. Another form of profiling is also possible.
- the sound-proofing layer 6 can easily be installed using, for example, the mould 8 shown. This mould 8 also possesses a vibrating apparatus, if compaction is necessary to a limited extent.
- An example of a composition of the layer 6 is as follows:
- the layer 6 can, for example, have a layer thickness of 10 to 60 millimetres, preferably of 20 to 50 millimetres.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Description
- The invention relates to a railway, wherein the rails are supported by an essentially compact foundation bed made of, for example, concrete or steel, which foundation bed essentially spans at least the width of the vehicle moving along the rails and wherein said foundation bed is covered with a layer of material such that the sound produced by a vehicle moving along the rails is substantially damped. The vehicles are, for example, mobile cranes, trains, trams, and also guided buses.
- In the past, a railway has often been laid in a bed of gravel founded on a layer of sand. More and more, however, a concrete or steel foundation bed is being used to support the railway.
- Such a railway construction is known from EP-A-0404756. In this publication it is described that the rails can be embedded in a sound proofing material which may be formed of a mix of rubber particles and stone chips embedded in a polyurethane or dispersion acrylic resin binder. The known system has as a disadvantage that the sound absorbing abilities are not optimised, that the specific shape of a profile of the sound demping layer cannot be easily formed and that a relatively complex dewatering facility needs to be applied.
- It is an object of the present invention to provide a sound damping construction for railways in which the above problems are mitigated.
- Thereto the railway construction according to the present invention is characterised in that the damping material comprises asphalt or asphalt concrete with chips of stone-like material bound by a bituminous binder material and having an open pore structure of at least 10%, preferable at least 20% and defining a longitudinal rib to the side of the rails integrally formed with said layer of damping material.
- In particular in combination with a foundation bed made of concrete or steel, it has been found that a surprisingly expedient reduction or damping of sound is achieved by covering the foundation bed with a layer of porous, bituminously bound material which absorbs rather than reflects, and reduces the emission of vibrational noise. This layer of material preferably contains a mixture of chips of stone-like material suitably selected according to chip size, which chips are bonded by means of a bituminous, viscoelastic material. For suitable compositions of the material, reference is made to, for example, the Standard RAW provisions, pp. 334/335, under 31.26.15 "Zeer Open Asfalt Beton" [Porous Asphalt Concrete], Table T 31.19 Foundation Centre for Regulation and Investigation in Soil Mechanics, Hydraulic Engineering, and Road-Building and Traffic Technology (CROW), Ede 1990, in which, in order to increase the effect desired here, the proportion of bitumen is preferably increased, and the proportion of sand is reduced, or, for example, EP-A-0,381,903, Example 1, and 3, or, for example, NL-A-7,903,920. However, other compositions of the material are also conceivable.
- In particular, the bituminously bound material with open pores can be particularly easily installed and has a favourable service life. In addition, use can thus be made of a material that has already been used in road-building for decades, the processing and use properties of which are by now thoroughly known. The material can be prepared in a so-called asphalt preparation plant.
- Because of the open pore structure, the sound-damping layer of material will be water-permeable, so that a suitable profile can be used without the need for an additional water draining facility, the longitudinal rib being constructed integrally with the sound-damping layer of material to the side of the railway.
- As well as being used in combination with a steel or concrete foundation bed, the layer of porous, bound material, for example the bituminously bound material with open pores, can also be used on, for example, a foundation bed made of sand, optionally topped with a bed of gravel. Instead of concrete or steel, uses in conjunction with foundation beds made of other solid materials (aluminium, wood, and the like) are also conceivable. As regards the railway, this can be of the type over which the vehicle moves, but also of the type from which the vehicle is suspended.
Particularly when using the bituminously bound material, with stone-like chips and an open pore structure, the following advantages can be achieved: the material can easily be adhesively bonded to the foundation bed by means of an asphalt binding layer or similar material; by tailoring the chip size of the stone-like material and the ratio of bituminous binder to fillers, the pore size and pore density can be varied within a wide range, as a result of which the material properties of the sound-damping layer can be adapted to the (sound) conditions; the material is inexpensive; the material can be recycled; a considerable sound reduction is achieved; a number of expedient application techniques are available, which have already proved themselves through long usage in road-building; compaction, as is customary in road-building, is not required, or is required only to a limited extent, and can be achieved by means of a vibrating mechanism instead of road rollers, as are used in road-building. - In the text which follows, the invention will be explained in more detail on the basis of a non-limiting exemplary embodiment, with reference to the appended drawing. In the only figure, the drawing shows a view of the profile of a double railway 1 on a foundation, which will be described in more detail. Four rails 2 are depicted; two adjacent rails 2 each for guiding a vehicle 5. The rails 2 lie on a foundation bed 3, in this case made of concrete. This foundation bed 3 is embedded in a bed of sand 4. However, it is also possible for the foundation bed 3 to lie on a piled foundation or the like. The foundation bed 3 can also be part of a bridge. The foundation bed 3 is an essentially compact, continuous slab or plate which is parallel to the rails 2. For example, the foundation bed 3 is composed of a number of prefabricated slab parts or plate parts, made of for example concrete or steel, mounted behind and/or next to one another. The foundation bed 3 is, as depicted, covered with a sound-proofing layer 6 in accordance with the invention. The rails are recessed both into the sound-proofing layer 6 and into the foundation bed 3. The rails 2 may, however, also be recessed exclusively into the sound-proofing layer 6, and thus be located on top of the foundation bed 3. In that case, however, the sound reduction is lower. It is even possible to fit the rails 2 on top of the sound-proofing layer 6, in which case, however, the sound reduction is likewise limited with respect to the embodiment shown in the drawing. To the side of the rails 2, the sound-proofing layer 6 is profiled, and has a longitudinal rib 7. This longitudinal rib 7 can be constructed such that the gap with respect to the underside of the vehicle 5 is narrowed to a certain degree in order in this way to damp the sound still further. Another form of profiling is also possible. The sound-proofing layer 6 can easily be installed using, for example, the mould 8 shown. This mould 8 also possesses a vibrating apparatus, if compaction is necessary to a limited extent. An example of a composition of the layer 6 is as follows:
- At least 70% by volume, preferably at least 85% by volume of chipped, coarse mineral, preferably fragmented stone, with a diameter (sieve) of approx. 8-11 millimetres or 6.3-8 millimetres; at most 10% by volume, preferably 0% by volume of sand; 4-6% by volume of fillers (for example pigments or limestone); 4-6% by volume of bitumen (preferably rubber-modified).
- The layer 6 can, for example, have a layer thickness of 10 to 60 millimetres, preferably of 20 to 50 millimetres.
Claims (3)
- Railway, wherein the rails (2) are supported by an essentially compact foundation bed (3) made of, for example, concrete or steel, which foundation bed essentially spans at least the width of the vehicle moving along the rails and wherein said foundation bed is covered with a layer of material (6) such that the sound produced by a vehicle moving along the rails is substantially damped, characterised in that the damping material comprises asphalt or asphalt concrete with chips of stone-like material bound by a bituminous binder material and having an open pore structure of at least 10%, preferable at least 20% and defining a longitudinal rib (7) to the side of the rails integrally formed with said layer of damping material.
- Railway according to claim 1, wherein the rails lie recessed into the layer of damping material.
- Railway according to claim 2, wherein the rails lie recessed into the foundation bed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1000143A NL1000143C2 (en) | 1995-04-13 | 1995-04-13 | Railway with soundproofing facility. |
NL1000143 | 1995-04-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0737778A1 EP0737778A1 (en) | 1996-10-16 |
EP0737778B1 true EP0737778B1 (en) | 2001-08-01 |
Family
ID=19760882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19960200998 Expired - Lifetime EP0737778B1 (en) | 1995-04-13 | 1996-04-12 | Railway with sound-proofing provision |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0737778B1 (en) |
NL (1) | NL1000143C2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT405424B (en) * | 1997-08-12 | 1999-08-25 | Porr Allg Bauges | Ballastless permanent way with sound-insulating elements |
NL1012649C2 (en) * | 1999-07-20 | 2001-01-23 | Grimbergen Holding B V | Track plate for a rail track, and method of attachment thereto. |
NL1026468C2 (en) | 2003-06-30 | 2005-04-28 | Heijmans Infrastructuur Bv | Railway construction. |
WO2012105860A1 (en) | 2011-02-01 | 2012-08-09 | Tuxbel Larmschutzsysteme Sp. Z O.O. | Acoustic baffle, especially for placement in the railway zone, and escape stairs for the acoustic baffle |
JP5997037B2 (en) * | 2012-12-25 | 2016-09-21 | 公益財団法人鉄道総合技術研究所 | Soundproofing device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2729248A1 (en) * | 1977-06-29 | 1979-01-04 | Zueblin Ag | Railway permanent way noise insulation without ballast - has sound absorbing layer laid all over open support layer |
DE2826960C2 (en) * | 1978-06-20 | 1983-05-26 | Strabag Bau-AG, 5000 Köln | Water-permeable top layer for traffic areas |
DE3602313A1 (en) * | 1986-01-27 | 1987-07-30 | Clouth Gummiwerke Ag | Sound-absorbing noise protection, in particular for ballastless tracks |
DE3827547C2 (en) * | 1988-08-13 | 2000-09-21 | Zueblin Ag | Sound absorption construction for ballastless railway superstructures |
FR2643094B1 (en) * | 1989-02-10 | 1991-06-07 | Beugnet Sa | COVER BASED ON LARGE CALIBRATE AGGREGATE AND HYDROCARBON BINDER FOR CONSTRUCTION OF PAVEMENT BASES, AS WELL AS POROUS PAVEMENT, IN PARTICULAR DRAINAGE AND NOISE RESISTANCE OBTAINED FROM SUCH A COAT |
AT395738B (en) * | 1989-06-19 | 1993-02-25 | Porr Allg Bauges | UPPER STRUCTURE WITH RAILS AND METHOD FOR PRODUCING THE SAME |
-
1995
- 1995-04-13 NL NL1000143A patent/NL1000143C2/en not_active IP Right Cessation
-
1996
- 1996-04-12 EP EP19960200998 patent/EP0737778B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL1000143C2 (en) | 1996-10-15 |
EP0737778A1 (en) | 1996-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1619305A2 (en) | Track bed partly injected with foam | |
JPS62500603A (en) | Materials for installing rails | |
CN207130543U (en) | The embedded tracks structure of new precast track plate | |
DE102008002836A1 (en) | Low noise barrier on tracks | |
CZ298890A3 (en) | Permanent way with rails and process of building thereof | |
EP0737778B1 (en) | Railway with sound-proofing provision | |
US9200412B2 (en) | Railway stone ballast and related systems and methods | |
JP3778738B2 (en) | Permeable pavement structure | |
EP0922808A2 (en) | Elastic mat for use in railway track structure | |
EP0549559B1 (en) | Superstructure with concrete sleepers | |
DE4439816C2 (en) | Process for the production of an elastically mountable track support plate | |
EP0767275B1 (en) | Sound absorber for ballastless railway superstructure | |
GB2390867A (en) | Water management system for managing storm water, spillages etc. | |
DE3827547C2 (en) | Sound absorption construction for ballastless railway superstructures | |
JP2001011810A (en) | Pavement structure | |
DE3810700A1 (en) | Method for producing a superstructure for railways | |
EP0924344B1 (en) | Rail track construction | |
EP0698143B1 (en) | Stable railway superstructure | |
DE19625249C2 (en) | Positionally stable track body made of precast concrete parts and use of precast concrete parts for this track body | |
AU785453B2 (en) | A sound barrier | |
CN210684358U (en) | Low noise road surface structure | |
EP0819661A2 (en) | Mixtures for damping solide-borne sounds and vibrations in the earth and buildings | |
Kraśkiewicz et al. | Overview of vibroacoustic isolators used in railway tracks | |
JP3046735B2 (en) | Labor saving track structure with sound absorbing effect | |
KR100428811B1 (en) | Paving method for cement concrete road having drainage layer |
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): BE LU NL |
|
17P | Request for examination filed |
Effective date: 19970203 |
|
17Q | First examination report despatched |
Effective date: 19990310 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE LU NL |
|
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 | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20030228 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20030418 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 20030423 Year of fee payment: 8 |
|
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: 20040412 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040430 |
|
BERE | Be: lapsed |
Owner name: *HEIJMANS WEGEN- EN WATERBOUW B.V. Effective date: 20040430 Owner name: *KONINKLIJKE WEGENBOUW STEVIN B.V. Effective date: 20040430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041101 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20041101 |