CN201546179U - Sound barrier for intercity rail traffic and city rail traffic viaduct - Google Patents
Sound barrier for intercity rail traffic and city rail traffic viaduct Download PDFInfo
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- CN201546179U CN201546179U CN2009201893516U CN200920189351U CN201546179U CN 201546179 U CN201546179 U CN 201546179U CN 2009201893516 U CN2009201893516 U CN 2009201893516U CN 200920189351 U CN200920189351 U CN 200920189351U CN 201546179 U CN201546179 U CN 201546179U
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Abstract
The utility model discloses a sound barrier for intercity rail traffic and a city rail traffic viaduct, which comprises a mobile sound barrier (2) arranged on a locomotive wheel and a low sound barrier (6) on the ground close to the rail. The low sound barrier is arranged on the ground on two sides of a rail (5) and is 175cm away from the center distance of the rail; the height of the low sound barrier is 50-100cm; and the length of the low sound barrier is the same as the length of the viaduct. For the mobile sound barrier, the length of each piece of sound barrier is 300-350cm and the width is 50-100cm. The mobile sound barrier is made of metal plate or hard plastic plate which has the thickness of 1-3mm and can be made into a flat plate shape or a corrugated sheet shape; and the low sound barrier is made of metal plate with the thickness of 1-3mm or can be formed by pressing waste plastic and other wastes with the thickness of 2-5mm. The utility model is applicable for reducing noise of the intercity rail traffic and city rail traffic viaduct.
Description
Technical field
The utility model relates to the sound barrier of a kind of inter-city rail transit and VIADUCTS IN URBAN RAIL TRANSIT, belongs to traffic environment-friendly vibration and noise control technology.
Background technology
Along with the develop rapidly of China's economic construction, track traffic also just rapidly emerges with unprecedented gesture.Important component part as track traffic, urban track traffic and inter-city rail transit shared proportion in track traffic is increasing, it is to keep the topmost infrastructure of city vigor, it is townie artery, restricting the development of urban economy, development plays crucial effects to regional economy.Urban track traffic and inter-city rail transit are often by the residential block, and how sensitive areas such as hospital are accomplished to reduce the vibration noise pollution and just seemed very urgent.As everyone knows, vibration noise is very big to people's influence, caused the public's common concern, add the continuous increase of traffic density, load constantly increases the weight of, and the speed of a motor vehicle improves constantly, and the vibration noise that makes track traffic cause has become environmental hazards, cause public response strong, also it has been classified as one of 7 overall situation public hazards in the world.Big unprecedented as the shared proportion of the important component part viaduct of track traffic, be a question of common concern in the world so how to reduce the noise pollution of viaduct section always.
Rail transit noise is made up of noise, slip ring system noise and aerodynamic noise that the wheel rail vibration produces usually, when train speed is lower than 250km/h, and the noise that rail transit noise mainly produces based on the wheel rail vibration.In order to reduce noise pollution, can sound barrier be set on the route of transmission, play diffraction, the sound absorption and insulation effect.
For traditional sound barrier, because have following shortcoming: (1) globality is poor, and the amalgamation assembly is many, and construction sequence is loaded down with trivial details, is unfavorable for installation and maintenance.(2) expense costliness is unfavorable for popularizing.(3) motorcycle track is regarded respectively as independently system, noise reduction is not ideal enough.
Summary of the invention
The purpose of this utility model is, according to the origin cause of formation of track noise, at the shortcoming of traditional sound barrier, designs a kind of simple in structure, easy construction, the cheap inter-city rail transit and the sound barrier of VIADUCTS IN URBAN RAIL TRANSIT.
The technical solution of the utility model is: when locomotive running velocity during less than 250km/h, wheel-rail noise is the main noise factor of track traffic, the present invention starts with from the mechanism that wheel-rail noise produces, respectively as noise source, sound barrier in light of its own characteristics is set respectively on the propagation of noise approach with wheel and track.For reducing wheel noise, mobile sound barrier is set, for reducing the track noise, short sound barrier is set, two sound barriers interact, thereby realize the purpose of noise reduction.The barrier of the utility model inter-city rail transit and VIADUCTS IN URBAN RAIL TRANSIT is included in the mobile sound barrier that is provided with on the locomotive and on nearly rail ground short sound barrier is set; Described short sound barrier adopts the short sound barrier on nearly rail ground, apart from orbit centre linear distance 175cm, and short sound barrier height 50cm-100cm, short sound barrier length is the same with viaduct length long; The installation site of described mobile sound barrier should guarantee that mobile sound barrier bottom is apart from rail face 40cm.
Its concrete steps are as follows:
As shown in Figure 1, ground is provided with short sound barrier (6) near track, realizes the purpose of noise reduction on the propagation of noise approach.The position of this short sound barrier should be located at more near the ground apart from rail (5), and as sound source, this short sound barrier plays sound absorption to the noise that rail produces with track, effects such as diffraction and sound insulation, thus reduce noise pollution.Consider that from acoustic connection sound barrier is near more apart from track, the high highly more noise reduction that plays is good more, but for motorcycle safety travels, make sound barrier not influence locomotive and normally move, also will control cost simultaneously, this sound barrier adopts the short sound barrier on nearly rail ground.Apart from the orbit centre linear distance is 175cm-200cm, and short sound barrier height adopts 50cm-100cm, and the length of short sound barrier is decided as required, and for the track on the viaduct, the length of short sound barrier is consistent with viaduct length.
Mobile sound barrier (2) with car is set on locomotive, on the route of transmission, realizes the purpose of noise reduction.The noise that wheel produces is one of main sound source of rail transit noise, it is controlled then very necessary.The utility model adopts the mobile sound barrier that is provided with car at this problem, and as sound source, the noise that wheel is produced plays sound absorption with wheel (3), diffraction, and effects such as sound insulation, thus reduce noise.The every sound barrier length of locomotive type that is adopted in conjunction with now urban rail transit in China and inter-city rail transit is 300cm-350cm, and width is 50cm-100cm, and the installation site of mobile sound barrier should guarantee that mobile sound barrier bottom is apart from rail face 40cm.
Mobile sound barrier can adopt metal sheet or hard plastic board to make, and as shown in Figure 3, thickness 1mm-3mm can be made into plate or the corrugation template, as shown in Figure 4.Adopt corrugation shape both can increase the intensity of screen, also can form diffuse reflection, reduce noise intensity noise.Short sound barrier is that the metal sheet of 1mm-3mm is made by thickness, can be that the waste plastic the like waste compacting of 2mm-5mm forms by thickness also, and the short sound barrier that the waste plastic the like waste is made can also have sound-absorbing effect to noise.
The utility model beneficial effect compared with prior art is, after the utility model adopts short sound barrier and denoising structure that mobile sound barrier combines, noise reduction is more satisfactory, and simple in structure, the amalgamation assembly is few, and installation and maintenance is convenient, the overall cost expense is cheap, also can adopt salvage property to make, have environment protecting, apply and popularize better.
The utility model is applicable to the noise reduction of inter-city rail transit and VIADUCTS IN URBAN RAIL TRANSIT.
Description of drawings
Fig. 1 is sound barrier and wheel rail system position schematic cross-sectional view;
Fig. 2 is mobile sound barrier and wheel position longitudinal section schematic diagram;
Picture in picture number expression: (1) compartment; (2) mobile sound barrier; (3) wheel; (4) be the bridge formation guardrail; (5) rail; (6) short sound barrier; (7) bogie.
Fig. 3 is the short sound barrier schematic diagram of the utility model embodiment;
Fig. 4 is the mobile sound barrier schematic diagram of the utility model embodiment.
The specific embodiment
Present embodiment is implemented on intercity track.On near ground track short sound barrier is set respectively, at the mobile sound barrier that on locomotive, is provided with car.Short sound barrier adopts and highly adopts 50cm in the present embodiment, the steel plate of thickness 1mm, as shown in Figure 3, scribble antirusting paint on the steel plate, the sound barrier of vertical ground is fixed on the angle steel that is erected in ground every the 2m place, the short sound barrier of present embodiment is 175cm apart from the orbit centre linear distance, and the length of short sound barrier is decided as required.
The mobile sound barrier that present embodiment is used on the locomotive is the corrugated steel plate of thickness 1mm, as shown in Figure 4, appearance is through antirust processing and be attached with antirusting paint, and present embodiment moves the long 350cm of sound barrier, width is 50cm, and bottom, mobile sound barrier installation site is apart from rail face 40cm.
Claims (3)
1. a sound barrier that is used for urban track traffic and inter-city rail transit viaduct is characterized in that described sound barrier is included in the mobile sound barrier that is provided with on the locomotive and on nearly rail ground short sound barrier is set;
Described short sound barrier adopts the short sound barrier on nearly rail ground, apart from orbit centre linear distance 175cm, and short sound barrier height 50cm-100cm, short sound barrier length is the same with viaduct length long;
The installation site of described mobile sound barrier should guarantee that mobile sound barrier bottom is apart from rail face 40cm.
2. a kind of sound barrier that is used for urban track traffic and inter-city rail transit viaduct according to claim 1 is characterized in that, every sound barrier length of described mobile sound barrier adopts 300cm--350cm, and width is 50cm-100cm.
3. a kind of sound barrier that is used for urban track traffic and inter-city rail transit viaduct according to claim 1 is characterized in that, described mobile sound barrier is that metal sheet or the hard plastic board of 1mm-3mm made by thickness, can be made into plate or the corrugation template; Short sound barrier is that the metal sheet of 1mm-3mm is made by thickness, can be that the waste plastic the like waste compacting of 2mm-5mm forms by thickness also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201893516U CN201546179U (en) | 2009-09-30 | 2009-09-30 | Sound barrier for intercity rail traffic and city rail traffic viaduct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201893516U CN201546179U (en) | 2009-09-30 | 2009-09-30 | Sound barrier for intercity rail traffic and city rail traffic viaduct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546179U true CN201546179U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201893516U Expired - Fee Related CN201546179U (en) | 2009-09-30 | 2009-09-30 | Sound barrier for intercity rail traffic and city rail traffic viaduct |
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| Country | Link |
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| CN (1) | CN201546179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113005934A (en) * | 2021-03-10 | 2021-06-22 | 重庆交通职业学院 | Closed urban rail sound barrier |
-
2009
- 2009-09-30 CN CN2009201893516U patent/CN201546179U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113005934A (en) * | 2021-03-10 | 2021-06-22 | 重庆交通职业学院 | Closed urban rail sound barrier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20130930 |