CN202430638U - Nonmetallic sound barrier for integral compression molding type high-speed railway - Google Patents
Nonmetallic sound barrier for integral compression molding type high-speed railway Download PDFInfo
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- CN202430638U CN202430638U CN201120514058XU CN201120514058U CN202430638U CN 202430638 U CN202430638 U CN 202430638U CN 201120514058X U CN201120514058X U CN 201120514058XU CN 201120514058 U CN201120514058 U CN 201120514058U CN 202430638 U CN202430638 U CN 202430638U
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Abstract
The utility model discloses a nonmetallic sound barrier for an integral compression molding type high-speed railway. The nonmetallic sound barrier comprises a sound absorption layer and a sound insulation layer, the sound absorption layer is a ceramsite sound absorption layer, the thickness of the sound absorption layer ranges from 40mm to 60mm, the sound insulation layer is a concrete sound insulation layer, the thickness of the sound insulation layer ranges from 80mm to 100mm, an adhesion layer is disposed between the ceramsite sound absorption layer and the concrete sound insulation layer, and transversely distributed reinforcing steel bars and longitudinally stressed reinforcing steel bars are arranged inside both the ceramsite sound absorption layer and the concrete sound insulation layer. The nonmetallic sound barrier for the integral compression molding type high-speed railway has the advantages that nonmetallic materials with low cost are used as sound absorption and sound insulation materials, cost is saved, compressive strength and shear strength are high, an adhesion effect is good, the integral structure is stable, fatigue resistance is high, and the nonmetallic sound barrier is durable.
Description
Technical field
The utility model relates to a kind of sound barrier, and particularly a kind of integral body is pressed into the nonmetal sound barrier of pattern high-speed railway.
Background technology
Sound absorbing-insulating barrier is to be used for absorbing and the through sonic propagation in noise isolation source, the sound absorption that between noise source and recipient, is provided with and the shielding harness that insulates against sound, and it is placed in the sound shadow region recipient, and propagation of noise is wherein had isolation effect preferably.Sound wave runs into that sound barrier can reflect, projection and three kinds of phenomenons of diffraction in communication process.Usually we think that sound barrier can stop through sonic propagation, and make system penetrate sound enough decay are arranged, and the influence of projection sound can be ignored.Therefore, the sound absorption effect of sound barrier generally can adopt the noise abatement amount to represent, it has reflected the ability of the above-mentioned two kinds of shielding entrant sounds of sound barrier.Between sound source and receiving station, insert a sound barrier, establish the sound barrier endless, sound wave can only be gone over from the top diffraction of barrier, and forms a sound shadow region thereafter, forms a shade that kind just as light is blocked by object.In this sound shadow region, people can feel that noise has obviously weakened, the noise reduction effect of Here it is sound barrier.
Between sound source and recipient, insert a facility, sound wave is propagated has a significant additional attenuation, thereby weakens the influence of noise in certain zone at recipient place, and such facility is called as sound barrier.
Developing rapidly of high-speed railway produces a large amount of noise pollutions now, and sound barrier takes up an area of few, and fabrication and installation are convenient and swift, and construction investment is suitable, become the important measures of traffic noise pollution control.
Sound barrier is widely used in countries in the world; Especially in recent years high-speed railway develops rapidly; Various countries have also carried out many research to high speed railway sound barrier, aspect the design and construction of high speed railway sound barrier, have also carried out deep research and a large amount of practices.
Present known concrete acoustical barrier has following several kinds:
1, modification perlite complex sound barrier:
The type sound barrier divides upper, middle and lower-ranking to be composited by the thick hydrophobic absorbent treatment of 5-8mm, the waterproof absorbent treatment of 52-70mm, enhancing puigging that 33-42mm is thick; Be tabular, the equidistant V-shaped groove of some roads length at the bottom of U-shaped of arranging or band circular arc that be formed with of its upper surface.
2 flap types:
Do supporting body with the blinds slotted hole, inner filling sucting sound material (like rock wool etc.) is one of sound barrier form of extensive use the most.Facing to noise source simultaneously is the blinds slotted hole, and internal cavities is all filled out sound absorption material (like rock wool, centrifugally glass-wool, fiberboard etc.).
3, perforation template:
Do supporting body with perforated plate, inner filling sucting sound material (like rock wool etc.), the whole strong concrete that adopts; Cavity is left in inside; Filling sucting sound material in the cavity, panel leave and are not less than 80% circular aperture hole, and backboard is made up of certain thickness steel concrete and mainly is used for sound insulation.
In the high-speed railway applied technical field, not only require sound barrier resistance to compression, shear strength height, acoustically effective is good, and has enough fatigue resistances.Compare with this requirement, above-mentioned several kinds of known nonmetal concrete sound barriers just seem, and form of structure is simple, absorbent treatment compressive strength is low, and acoustically effective is difficult to reach requirement, also is difficult to adopt full-automatic production in process of production.Absorbent treatment resistance to compression, the shear strength of modification perlite complex sound barrier are low, are difficult to satisfy resistance to compression, the shear strength requirement of high speed railway sound barrier; Sound absorption material in perforation template and the flap type sound barrier is under the infiltration of rainwater, and acoustically effective can progressively be lost, and can not satisfy high-speed railway to the long-lived requirement of sound barrier.So present high speed railway sound barrier nearly all is to adopt the metallic sound barrier, like the Beijing-Shanghai express railway employing is exactly board plug type metallic sound barrier.Metallic sound barrier not only price is high, and fatigue resistance is low, and high-speed railway adopts the metallic sound barrier to seem more unreasonable, and in the long term, nonmetal sound barrier will be the primary selection of high speed railway sound barrier.
The utility model content
The goal of the invention of the utility model is: the problem to above-mentioned existence provides a kind of integral body to be pressed into the nonmetal sound barrier of pattern high-speed railway.
The technical scheme that the utility model adopts is such: a kind of integral body is pressed into the nonmetal sound barrier of pattern high-speed railway; Comprise absorbent treatment and soundproof course; Said absorbent treatment is the haydite absorbent treatment, and thickness is 40-60mm, and said soundproof course is the concrete soundproof course; Thickness is 80-100mm, adhesive linkage and the two inside is set between said haydite absorbent treatment and the concrete soundproof course transversely distributed steelbar and longitudinal stress reinforcing bar all are set.
As optimal way, the haydite grain diameter of said haydite absorbent treatment concentrates on 2-3mm.
As optimal way, said adhesive linkage is a concrete interface agent.
Present a kind of physical dimension that is applied to the nonmetal sound barrier of high-speed railway is 3960mm * 500mm * 140mm, and its absorbent treatment and soundproof course thickness are 70mm.Consider the stressing conditions of the integral body of soundproof course, the utility model is preferably 50mm with concrete soundproof course thickness; Adhesive layer thickness is less, and its thickness can be ignored; Haydite absorbent treatment thickness is preferably 90mm, and the deadweight that the increase of haydite absorbent treatment thickness has not only alleviated entire product has improved noise reduction coefficient simultaneously.
Consider the influence of porosity and aperture, when flow resistance is 1144.07Pa.s/m to haydite particle sound absorption material sound absorbing capabilities
3The time, it is best that the sound absorbing capabilities of material reaches.On the basis of test, the haydite grain diameter in the utility model preferably concentrates on 2-3mm.The effect of doing like this has two benefits: the porosity that has increased absorbent treatment; Improved the acoustically effective of absorbent treatment.Through measuring, noise reduction coefficient can reach 0.85.
Selecting for use of concrete interface agent can be strengthened bonding between haydite absorbent treatment and the concrete soundproof course, guaranteed integrally-built stability and intensity.
The physical dimension of the utility model is 3960mm*500mm*140mm, and surface density is approximately 250kg/m
2, weight is about 500kg.Manufacturing process adopts a compression moulding technology, and apparent size can be guaranteed effectively, the product length deviation after processing≤± 5.0mm; Width difference≤± 2.0mm, thickness deviation≤± 2.0mm, the diagonal deviation≤± 6.0mm; Plate surface evenness deviation≤± 4.0mm, lateral bending deviation≤L/1000, haydite absorbent treatment surface can be processed into various patterns as required simultaneously; Whole barriers simplicity generosity, attractive in appearance, be fit to standard batch production.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is: selected for use lower-cost nonmetals as the sound absorption and insulation material, practiced thrift cost; Resistance to compression, shear strength height; Adhesive effect is good, and overall structure is stable, and fatigue resistance is high, and is durable in use; Whole plate adopts a compression moulding, is fit to produce in enormous quantities.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Cross sectional view is looked on left side when Fig. 2 is Fig. 1 utility model horizontal positioned.
Fig. 3 is the design sketch of haydite absorbent treatment in Fig. 1 utility model.
Mark among the figure: 1 is the haydite absorbent treatment, and 2 is adhesive linkage, and 3 is the concrete soundproof course, and 4 is transversely distributed steelbar, and 5 is the longitudinal stress reinforcing bar.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
Shown in Fig. 1-2; A kind of integral body is pressed into the nonmetal sound barrier of pattern high-speed railway, comprises absorbent treatment and soundproof course, and said absorbent treatment is a haydite absorbent treatment 1; Thickness is 40-60mm; Said soundproof course is a concrete soundproof course 3, and thickness is 80-100mm, adhesive linkage 2 and the two inside is set between said haydite absorbent treatment 1 and the concrete soundproof course 3 transversely distributed steelbar 4 and longitudinal stress reinforcing bar 5 all are set.
The haydite grain diameter of said haydite absorbent treatment 1 concentrates on 2-3mm.
Said adhesive linkage 3 is a concrete interface agent.
Said haydite absorbent treatment 1 thickness is 50mm, and its design sketch is as shown in Figure 3.
Said concrete soundproof course 3 thickness are 90mm.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. an integral body is pressed into the nonmetal sound barrier of pattern high-speed railway; Comprise absorbent treatment and soundproof course; It is characterized in that: said absorbent treatment is haydite absorbent treatment (1), and thickness is 40-60mm, and said soundproof course is concrete soundproof course (3); Thickness is 80-100mm, adhesive linkage (2) and the two inside is set between said haydite absorbent treatment (1) and the concrete soundproof course (3) transversely distributed steelbar (4) and longitudinal stress reinforcing bar (5) all are set.
2. the nonmetal sound barrier of a kind of whole compacting formula high-speed railway according to claim 1, it is characterized in that: the haydite grain diameter of said haydite absorbent treatment (1) concentrates on 2-3mm.
3. the nonmetal sound barrier of a kind of whole compacting formula high-speed railway according to claim 1, it is characterized in that: said adhesive linkage (3) is a concrete interface agent.
4. according to the nonmetal sound barrier of the described a kind of whole compacting formula high-speed railway of the arbitrary claim of claim 1-3, it is characterized in that: said haydite absorbent treatment (1) thickness is 50mm.
5. according to the nonmetal sound barrier of the described a kind of whole compacting formula high-speed railway of the arbitrary claim of claim 1-3, it is characterized in that: said concrete soundproof course (3) thickness is 90mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120514058XU CN202430638U (en) | 2011-12-12 | 2011-12-12 | Nonmetallic sound barrier for integral compression molding type high-speed railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120514058XU CN202430638U (en) | 2011-12-12 | 2011-12-12 | Nonmetallic sound barrier for integral compression molding type high-speed railway |
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| Publication Number | Publication Date |
|---|---|
| CN202430638U true CN202430638U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120514058XU Expired - Lifetime CN202430638U (en) | 2011-12-12 | 2011-12-12 | Nonmetallic sound barrier for integral compression molding type high-speed railway |
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| CN (1) | CN202430638U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334507A (en) * | 2013-06-13 | 2013-10-02 | 镇江崟鑫新型建材科技有限公司 | Sound-absorption sound-insulation building board |
| CN104963302A (en) * | 2014-12-30 | 2015-10-07 | 山东馨声建筑材料有限公司 | Non-metallic sound barrier unit plate material and production technology thereof |
| CN109487713A (en) * | 2018-04-23 | 2019-03-19 | 中集绿建环保科技有限公司 | A kind of sound insulation screen board for highway |
| CN113338181A (en) * | 2021-05-26 | 2021-09-03 | 黄活泉 | Maintenance-free sound barrier |
| CN113356100A (en) * | 2021-07-19 | 2021-09-07 | 中建西部建设建材科学研究院有限公司 | Light double-layer composite structure sound barrier and preparation method thereof |
-
2011
- 2011-12-12 CN CN201120514058XU patent/CN202430638U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334507A (en) * | 2013-06-13 | 2013-10-02 | 镇江崟鑫新型建材科技有限公司 | Sound-absorption sound-insulation building board |
| CN104963302A (en) * | 2014-12-30 | 2015-10-07 | 山东馨声建筑材料有限公司 | Non-metallic sound barrier unit plate material and production technology thereof |
| CN109487713A (en) * | 2018-04-23 | 2019-03-19 | 中集绿建环保科技有限公司 | A kind of sound insulation screen board for highway |
| CN113338181A (en) * | 2021-05-26 | 2021-09-03 | 黄活泉 | Maintenance-free sound barrier |
| CN113338181B (en) * | 2021-05-26 | 2022-07-26 | 杭州凯多邦新型建材有限公司 | Maintenance-free sound barrier |
| CN113356100A (en) * | 2021-07-19 | 2021-09-07 | 中建西部建设建材科学研究院有限公司 | Light double-layer composite structure sound barrier and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
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| CX01 | Expiry of patent term |