CN103603277A - Compound type sound barrier for high-speed railway - Google Patents
Compound type sound barrier for high-speed railway Download PDFInfo
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- CN103603277A CN103603277A CN201310514805.3A CN201310514805A CN103603277A CN 103603277 A CN103603277 A CN 103603277A CN 201310514805 A CN201310514805 A CN 201310514805A CN 103603277 A CN103603277 A CN 103603277A
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- panel
- sound barrier
- speed railway
- sound
- absorption material
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Abstract
The invention discloses a compound type sound barrier for a high-speed railway. The compound type sound barrier comprises a base and a panel. A recessed sound absorbing cavity is arranged in the middle of the base, and a protruding frame is arranged on the periphery of the base. The panel is embedded into the frame on the periphery of the base, and through holes are distributed in the surface of the panel evenly. Sound absorbing materials are filled in the sound absorbing cavity. The ratio of a middle-low frequency sound absorbing material to a middle-high frequency sound absorbing material is 3:7. The through hole direction and the panel form a 20-50-degree angle. The diameter of the through holes is 20-40 cm, the density of the through holes is 100-120 holes per square meter, and the porosity is 30-60%. The panel is connected with the base through a rubber gasket. By embedding the sound barrier into the base, the service life of the sound barrier is prolonged, and maintaining performance of the sound barrier is improved. The holes of the panel can guarantee absorption of the inner-layer sound absorbing materials on sound wave. Due to the through hole angle, an absorbing effect of the sound wave is improved, rain water is prevented from entering base materials, and durability of sound barrier materials is improved.
Description
Technical field
The present invention relates to the compound sound barrier of a kind of used for high-speed railway.
Background technology
Transportation is one of mainstay of the national economy industry, and high-speed railway is minimus core component in China Transportation Industry.Along with the raising of train speed, Railway Vibration and noise problem increase the weight of day by day.The high-speed train that speed per hour is surpassed to 200km/h, the very high noise, the especially low frequency noise that while running at high speed, produce, extremely strong to the destructive power of sound barrier, general sound barrier is difficult to meet the demands.
Summary of the invention
The technical problem to be solved in the present invention is to provide the compound sound barrier of a kind of used for high-speed railway.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: the compound sound barrier of a kind of used for high-speed railway, comprises pedestal and panel; In the middle of pedestal, be provided with the sound absorption chamber of indent, the frame that pedestal surrounding is projection; Panel is embedded in the frame of pedestal surrounding and is connected with frame by rubber sheet gasket; Uniform through hole on panel; Sound absorption chamber filling sound absorption material.
As preferably, sound absorption material comprises low frequency absorption material and medium-high frequency sound absorption material; Low frequency absorption material is rock wool or centrifugally glass-wool or polyester fiber acoustical cotton; Medium-high frequency sound absorption material is foamed plastics or foam glass or foam concrete.
As preferably, the ratio of low frequency absorption material and medium-high frequency sound absorption material is 3:7.
As preferably, the blowing angle of through hole becomes 20 °～50 ° angles with panel surface, and the aperture of through hole is 20～40mm, and the density of through hole is 100～120/square metre, and porosity is 30%～60%.
As preferably, pedestal forms with toughness reinforcing pouring concrete.
As preferably, panel is made by the toughness reinforcing cement-based material that comprises aqueous polyurethane, aqueous epoxy resins, steel fibre, engineering plastics fiber.
As preferably, panel adopts reinforced mesh to do reinforcing rib.
As preferably, panel is connected with pedestal by rubber sheet gasket.
As preferably, panel is fixed by bolts on pedestal frame.
As preferably, pedestal is cubic shaped.
The invention has the beneficial effects as follows:
Adopt the form of sound barrier panel embedding matrix, be conducive to improve application life and the maintainability of sound barrier.Wherein panel cut out guarantees the absorption of internal layer sound absorption material to sound wave, and being designed with of blowing angle is beneficial to increase to the assimilation effect of sound wave and reduces rainwater and invade base material, the durability of raising acoustic barrier material.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the front view of the compound sound barrier embodiment of used for high-speed railway of the present invention.
Fig. 2 is the left view of the compound sound barrier embodiment of used for high-speed railway of the present invention.
In figure, 1-pedestal, 2-panel, 3-through hole, 4-sound absorption material, 5-rubber sheet gasket.
The specific embodiment
Fig. 1 is the compound sound barrier of a kind of used for high-speed railway, pedestal 1 and panel 2, consists of.Pedestal 1 is cubic shaped.In the middle of pedestal 1, be provided with the sound absorption chamber of indent, the frame that pedestal surrounding is projection, panel 2 is embedded in the frame of pedestal surrounding, and the uniform through hole 3 for absorbing sound of panel surface.The oblique setting of through hole, through-bore axis becomes 35 degree with panel plane, and is positioned at panel outer surface one end to declivity, can avoid rainwater to enter sound absorption chamber by panel and corrode sound absorption material.
Panel and pedestal junction are provided with rubber sheet gasket 5.Panel 2 is fixed by bolts on pedestal frame.
Sound absorption chamber filling sound absorption material 4, sound absorption material is that ratio by low frequency absorption material and medium-high frequency sound absorption material is by 3:7 mixed configuration.Wherein low frequency absorption material adopts rock wool or centrifugally glass-wool or polyester fiber acoustical cotton.Medium-high frequency sound absorption material adopts foamed plastics or foam glass or foam concrete.
The preparation method of panel: cement, aqueous polyurethane, aqueous epoxy resins, steel fibre, water and quartz sand are mixed by a certain percentage and forms compound.Compound is injected to mould after half, and vibration, paves, and puts into reinforced mesh, then mould is filled up, and vibration, paves.Spray curing compound, maintenance 72h, finally demould forms compound sound barrier panel.
During installation, sound absorption material is packed in sound barrier pedestal sound absorption chamber, then panel is fixed by bolt and base combination.Then adopt and assemble into sound barrier.Install the trends of the times will panel towards sound absorption direction.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present invention.
Claims (9)
1. the compound sound barrier of used for high-speed railway, is characterized in that: comprise pedestal and panel; In the middle of described pedestal, be provided with the sound absorption chamber of indent, the frame that pedestal surrounding is projection; Described panel is embedded in the frame of pedestal surrounding and is connected with frame by rubber sheet gasket; Uniform through hole on panel; Described sound absorption chamber filling sound absorption material.
2. the compound sound barrier of used for high-speed railway according to claim 1, is characterized in that: described sound absorption material comprises low frequency absorption material and medium-high frequency sound absorption material; Described low frequency absorption material is rock wool or centrifugally glass-wool or polyester fiber acoustical cotton; Described medium-high frequency sound absorption material is foamed plastics or foam glass or foam concrete.
3. the compound sound barrier of used for high-speed railway according to claim 2, is characterized in that: the ratio of described low frequency absorption material and medium-high frequency sound absorption material is 3:7.
4. the compound sound barrier of used for high-speed railway according to claim 1, it is characterized in that: the blowing angle of described through hole becomes 20 °～50 ° angles with panel surface, the aperture of through hole is 20～40mm, and the density of through hole is 100～120/square metre, and porosity is 30%～60%.
5. the compound sound barrier of used for high-speed railway according to claim 1, is characterized in that: described pedestal forms with toughness reinforcing pouring concrete.
6. the compound sound barrier of used for high-speed railway according to claim 1, is characterized in that: described panel is made by the toughness reinforcing cement-based material that comprises aqueous polyurethane, aqueous epoxy resins, steel fibre, engineering plastics fiber.
7. according to the compound sound barrier of the used for high-speed railway described in claim 1 or 6, it is characterized in that: described panel adopts reinforced mesh to do reinforcing rib.
8. the compound sound barrier of used for high-speed railway according to claim 1, is characterized in that: described panel is fixed by bolts on pedestal frame.
9. the compound sound barrier of used for high-speed railway according to claim 1, is characterized in that: described pedestal is cubic shaped.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310514805.3A CN103603277A (en) | 2013-10-28 | 2013-10-28 | Compound type sound barrier for high-speed railway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310514805.3A CN103603277A (en) | 2013-10-28 | 2013-10-28 | Compound type sound barrier for high-speed railway |
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| CN103603277A true CN103603277A (en) | 2014-02-26 |
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| CN201310514805.3A Pending CN103603277A (en) | 2013-10-28 | 2013-10-28 | Compound type sound barrier for high-speed railway |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616648A (en) * | 2014-12-26 | 2015-05-13 | 北京市劳动保护科学研究所 | Composite sound absorption plate |
| CN104612069A (en) * | 2015-01-19 | 2015-05-13 | 江苏新光环保工程有限公司 | Novel light high-strength nonmetal sound barrier |
| CN104616647A (en) * | 2014-12-26 | 2015-05-13 | 北京市劳动保护科学研究所 | Composite sound absorption structure |
| CN106087788A (en) * | 2016-08-03 | 2016-11-09 | 中铁电气化局集团有限公司 | A kind of nonmetal sound-absorbing composite board and production method thereof |
| CN106480832A (en) * | 2016-12-06 | 2017-03-08 | 山东景中景环保科技有限公司 | A kind of noise reducing mechanism and its sound barrier panel |
| CN106758901A (en) * | 2016-12-27 | 2017-05-31 | 中国铁道科学研究院节能环保劳卫研究所 | The acoustic absorptive member of railway metal sound barrier |
Citations (5)
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| CN2516630Y (en) * | 2001-11-07 | 2002-10-16 | 田保华 | High-efficient noise-sound reducing board |
| JP2004134571A (en) * | 2002-10-10 | 2004-04-30 | Nippon Tokushu Toryo Co Ltd | Sound-absorption electromagnetic wave absorbing material |
| CN2825730Y (en) * | 2005-08-15 | 2006-10-11 | 陈庆安 | Light composite board barrier with holes capable of absorbing and insulating noise |
| CN201343708Y (en) * | 2009-01-14 | 2009-11-11 | 中铁电气化局集团有限公司 | Module type reinforced concrete sound barrier |
| CN102936113A (en) * | 2011-08-15 | 2013-02-20 | 青岛理工大学 | Hybrid nanocomposite material used for buildings and preparation method thereof |
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2013
- 2013-10-28 CN CN201310514805.3A patent/CN103603277A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2516630Y (en) * | 2001-11-07 | 2002-10-16 | 田保华 | High-efficient noise-sound reducing board |
| JP2004134571A (en) * | 2002-10-10 | 2004-04-30 | Nippon Tokushu Toryo Co Ltd | Sound-absorption electromagnetic wave absorbing material |
| CN2825730Y (en) * | 2005-08-15 | 2006-10-11 | 陈庆安 | Light composite board barrier with holes capable of absorbing and insulating noise |
| CN201343708Y (en) * | 2009-01-14 | 2009-11-11 | 中铁电气化局集团有限公司 | Module type reinforced concrete sound barrier |
| CN102936113A (en) * | 2011-08-15 | 2013-02-20 | 青岛理工大学 | Hybrid nanocomposite material used for buildings and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616648A (en) * | 2014-12-26 | 2015-05-13 | 北京市劳动保护科学研究所 | Composite sound absorption plate |
| CN104616647A (en) * | 2014-12-26 | 2015-05-13 | 北京市劳动保护科学研究所 | Composite sound absorption structure |
| CN104612069A (en) * | 2015-01-19 | 2015-05-13 | 江苏新光环保工程有限公司 | Novel light high-strength nonmetal sound barrier |
| CN106087788A (en) * | 2016-08-03 | 2016-11-09 | 中铁电气化局集团有限公司 | A kind of nonmetal sound-absorbing composite board and production method thereof |
| CN106480832A (en) * | 2016-12-06 | 2017-03-08 | 山东景中景环保科技有限公司 | A kind of noise reducing mechanism and its sound barrier panel |
| CN106758901A (en) * | 2016-12-27 | 2017-05-31 | 中国铁道科学研究院节能环保劳卫研究所 | The acoustic absorptive member of railway metal sound barrier |
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Address after: 230000, No. 114, science Avenue 1-2, hi tech Zone, Anhui, Hefei Applicant after: CHINA RAILWAY BAIRUIDE TRAFFIC ENGINEERING TECHNOLOGY CO., LTD. Address before: 230000, No. 114, science Avenue 1-2, hi tech Zone, Anhui, Hefei Applicant before: CHINA RAILWAY BAIRUIDE TRAFFIC ENGINEERING TECHNOLOGY CO., LTD. |
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Application publication date: 20140226 |