CN108978505A - A kind of nonmetallic sound absorption device of noise abatement - Google Patents
A kind of nonmetallic sound absorption device of noise abatement Download PDFInfo
- Publication number
- CN108978505A CN108978505A CN201811110059.0A CN201811110059A CN108978505A CN 108978505 A CN108978505 A CN 108978505A CN 201811110059 A CN201811110059 A CN 201811110059A CN 108978505 A CN108978505 A CN 108978505A
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- Prior art keywords
- sound absorption
- nonmetallic
- concrete
- concrete mortar
- fin
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0035—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with undulated surfaces
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The present invention relates to a kind of nonmetallic Felt devices of innovative noise prevention and cure of pollution, belong to environmental protection facility, it includes sound absorption backboard, sound absorption panel, rock wool/mineral wool, reinforced mesh.The beneficial effects of the present invention are: effectively solving that nonmetallic Felt noise reduction effect is poor, surface density is big, cost of manufacture is high, the disadvantage more than process.
Description
Technical field
The present invention relates to a kind of nonmetallic sound absorption devices of noise abatement, are mainly used for high-speed rail, steam power plant, cell
Equal places noise reduction.
Background technique
With 350km/ hours domestic, 250km/ hours high-speed railway, inter-city train, magnetic suspension train, highway,
City expressway is built on a large scale, these high-speed motion trains, automobile necessarily cause noise to ambient enviroment and subjective reflection
Pollution, noise pollution also have become the big malignant tumor for seriously affecting people's physical and mental health and quality of the life, how to control noise
Pollution has become urgent problem to be solved in economic development, thus nonmetallic sound absorption device be widely used in railway and
Both sides of the road, but the sound barrier erasure effect that prior art manufactures is unobvious.
The nonmetallic sound absorption device of good muffling effect, manufacturing process is also relative complex, and production process is more, cost
Height, low efficiency.
Summary of the invention
The present invention provides low manufacture cost, and manufacture craft is simple and a kind of better noise abatement of sound absorption effect
Nonmetallic sound absorption device.
Technical solution of the present invention: a kind of nonmetallic sound absorption device of noise abatement, including concrete sand pulpboard,
It is characterized in that, the plate face of concrete sand pulpboard, which is equipped with two, arranges lateral fin, one arranges longitudinal fin；Two arrange between lateral fin
Setting one arranges longitudinal fin.
Rock wool/mineral wool is added in concrete mortar.
Reinforced mesh is equipped in concrete mortar.
It is characterized in that the cross section of lateral fin, longitudinal fin is inThe figure surrounded, wherein a,
C is constant c > a > 0 and c ≠ a, and numerical value is different, and determining radian is different, usual value a=1, c=3 ,-a < y < a, 0 < z <
c。
Rock wool/mineral wool is uniformly blended into concrete mortar, while two layers setting up and down in mold concrete mortar
The big reinforced mesh such as cavity are formed with mold, the one side with fin formed after concrete mortar solidification is sound absorption
Panel, the opposite other side are sound absorption backboard.
The sound absorption backboard, sound absorption panel are formed by concrete mortar primary concreting.
Before the sound absorption backboard (such as Fig. 3), sound absorption panel (such as Fig. 2) are by concrete mortar primary concreting, in mould
Have in concrete mortar and forms the big reinforced mesh such as cavity with mold two layers setting up and down.
The sound absorption backboard (such as Fig. 3), sound absorption panel (such as Fig. 2) by before concrete mortar primary concreting in coagulation
Rock wool/mineral wool is added in soil sand slurry, the rock wool/mineral wool is added into concrete mortar as sound-absorbing material.
Skeleton of the reinforced mesh as concrete mortar improves the bond stress between concrete mortar.
The noise reduction matrix for thering is lateral fin, longitudinal fin to be formed on the transverse direction fin sound absorption panel (such as Fig. 2), laterally
Fin, longitudinal fin cross section be inShape.Wherein a, c are constant c > a > 0 and c ≠ a, and numerical value is different,
Determining radian is different, usual value a=1, c=3 ,-a < y < a, 0 < z < c.
Concrete mortar is made of sound absorption backboard, sound absorption panel, rock wool/mineral wool, reinforced mesh；In concrete sand
The big reinforced mesh such as rock wool/mineral wool and setting is uniformly blended into slurry, what is formed after concrete mortar solidification has fin
One side be sound absorption panel, the opposite other side is sound absorption backboard.
The sound absorption backboard, sound absorption panel are formed by concrete mortar primary concreting.
Before the sound absorption backboard, sound absorption panel are by concrete mortar primary concreting, in mold concrete mortar
The big reinforced mesh such as two layers setting up and down and mold formation cavity.
The sound absorption backboard, sound absorption panel in concrete mortar by being added rock before concrete mortar primary concreting
Cotton or mineral wool, the rock wool or mineral wool are added into concrete mortar as sound-absorbing material.
Skeleton of the reinforced mesh as concrete mortar improves the bond stress between concrete mortar.
The noise reduction matrix for thering is lateral fin, longitudinal fin to be formed on the sound absorption panel.
The present invention effectively solve nonmetallic Felt noise reduction effect is poor, surface density is big, cost of manufacture is high, more than process lack
Point.
Detailed description of the invention
Fig. 1 is a kind of nonmetallic Felt device main view of noise abatement of the present invention；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the rearview of Fig. 1；
Fig. 4 is the top view of Fig. 1.
In figure, 1, longitudinal fin, 2, lateral fin, 3, sound absorption plate body.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of nonmetallic sound absorption device of noise abatement, including sound absorption backboard
(as shown in Figure 3), sound absorption panel (as shown in Figure 1), rock wool/mineral wool, reinforced mesh.The sound absorption backboard is most left
Layer, is an elongated plane；The sound absorption panel has four fin tee sections to be formed on the rightmost side, elongated plane
Corrugated protrusion；It is filled between the sound absorption backboard, sound absorption panel by concrete mortar；The sound absorption backboard, inhale every
Rock wool/mineral wool and reinforced mesh are filled in middle layer when fill concrete mortar between sound panel.
As shown in Fig. 2, the corrugated protrusion for thering is fin tee section to be formed on sound absorption panel；Fin on sound absorption panel
The corrugated protrusion that tee section is formed arranges to form space noise reduction matrix by transverse direction and longitudinal direction；Fin in sound absorption panel two
Side is transversely arranged, intermediate longitudinal arrangement forms space noise reduction matrix.
A kind of nonmetallic Felt device of noise abatement described further is after corrugated base portion and corrugated
The resonance sound-absorbing structure of depth between sound absorption backboard, sound absorption panel is material internal because of the sound absorbing mechanism of porous material
The air-gap for having mass air flow to be connected to forms tubule even capillary, and as sound wave successor, vibration of the sound wave in tubule is because in
It rubs and is converted into thermal energy and is absorbed.
A kind of nonmetallic Felt device of noise abatement is primary in corresponding template by concrete mortar
Property pouring molding, elongated planar side be the sound absorption backboard, another side have four fin tee sections formed fin side
For the sound absorption panel.
Concrete mortar is (common by 42.5 grade of I type portland cement (P I) or ordinary portland cement (P O), coarse aggregate
Rubble or cobble are commonly used in concrete), fine aggregate (sand is referred in normal concrete), water, rock wool/mineral wool, reinforced mesh,
Additive etc. is prepared.Concrete strength label is not less than C35, and when preparation is configured in strict accordance with match ratio.
A kind of nonmetallic Felt device of noise abatement described further is by concrete mortar primary concreting
Molding, cement preferably select 42.5 grade of I type portland cement (P I) or ordinary portland cement (P O)；Sand preferably uses gradation good
Medium coarse sand；It is the middle sand of 3.0-2.3 that sand particle size distribution, which selects fineness modulus,；Ballast grain sizes preferably select 5-15 ㎜, select continuous grade
With particle；Mixing water preferably uses drinking water, and pH value, insoluble matter, soluble matter, chloride ion, sulfate ion, alkali content need to accord with
Close " standards for drinking water quality " GB5749-2006；Reinforced mesh preferably selects welded net；Acoustical cotton density is 48kg/m
³；.
A kind of nonmetallic Felt device primary concreting in corresponding template of noise abatement described further
Before, standard compliant ready-mixed concrete mortar is configured, ingredient is to guarantee one of the important link of concrete quality, it is necessary to stringent control
System, it is accurate to weigh, and at any time by the variation of the practical moisture content of aggregates such as sand, adjusts match ratio.It should be according to calculating when ready-mixed concrete
Inventory of each composition material out, accurately feeds intake according to weight.Its deviation of weight must not exceed following provisions: cement,
Outer blending condensation material is ± 2%；Coarse-fine aggregate is ± 3%；Water, additional agent solution ± 2%.
When a kind of nonmetallic Felt device primary concreting of noise abatement described further prepares template, use
The cement work platform, rubber bottom fetal membrane, aluminium alloy side form etc. for making template are answered smooth bright and clean, must not be generated under component quality
Heavy, crack, dusting play drum；The seam of bottom fetal membrane and aluminium alloy side form does not answer spillage；Bottom fetal membrane, aluminium alloy side form and mixed
The contact surface of solidifying soil should clean out and brushing release agent, but must not be using the demoulding for influencing structural behaviour or obstruction engineering construction
Agent；Before casting concrete, the sundries in bottom fetal membrane, aluminium alloy side form should be cleaned out；Bottom fetal membrane, aluminium alloy side form are removed
When concrete strength should ensure that its surface and corner angle are not suffered a loss.
A kind of nonmetallic Felt device of noise abatement described further is installed after getting out template before pouring
Reinforcing bar panel mesh sheet, is installed in strict accordance with design drawing, there is not allowed that uneven, distortion, plate face is answered smooth.Steel mesh
After piece places, its position, elevation need to be checked, meet drawing and related specification requirement and determine accurate, secured rear
It can be poured.Reinforced mesh should use cushion block to ensure that pouring reinforcement protective layer thickness, every square meter should at least place 6 when installing
Block.
When a kind of nonmetallic Felt device primary concreting of noise abatement described further, it should be layered and pour
It builds；After concrete pours into template, since frictional resistance between internal aggregate and mortar and cohesive force act on, concrete flowability is very
It is low.Cannot automatically full of each corner in template, inside be it is loose, air and air bubble content account for volume of concrete about 5%-
20%.The compactness of requirement cannot be reached, it is necessary to carry out appropriate vibrate；Promote concrete mix to overcome resistance and escapes gas
Bubble eliminate gap, make concrete meet design requirement strength grade and enough compactness.Vibrator is using vibrating spear peace
Two kinds of panel vibration vibrate.
After a kind of nonmetallic Felt device primary concreting of noise abatement described further, concrete silicic acid
Salt cement initial set setting time must not must not be later than 6.5h earlier than 45min, final setting time；The ordinary portland cement presetting period is not
It obtains earlier than 45min, final setting time must not be later than 10h；Curing concrete maintenance should be carried out after pouring generally (to cover using natural curing
Lid water seasoning, the maintenance of film cloth)；The concrete poured should carry out (after the completion of pouring in 8-12h) before concrete final set
Natural curing is watered in due course according to environment temperature, guarantees that concrete surface is wet；Using portland cement or ordinary silicon
The concrete of sour water mud mixing, covering the water seasoning time not be less than 14d.
It is certain that a kind of nonmetallic Felt device primary concreting of noise abatement described further finishes shielding
Carry out demoulding after time, concrete strength when aluminium alloy side form, bottom glue film are removed should ensure that its surface and corner angle not by
Loss.After pouring after 3-12 hours, 12 hours rear collapsible dies after the plastic covering film natural curing of general summer, the winter
It 24 hours after season steam curing can demoulding.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of nonmetallic sound absorption device of noise abatement, including concrete sand pulpboard, which is characterized in that concrete sand
The plate face of pulpboard is equipped with two and arranges lateral fin, and one arranges longitudinal fin；Two, which arrange setting one between lateral fin, arranges longitudinal fin.
2. the nonmetallic sound absorption device of a kind of noise abatement according to claim 1, it is characterised in that concrete sand
Rock wool or mineral wool are added in slurry.
3. the nonmetallic sound absorption device of a kind of noise abatement according to claim 1, it is characterised in that concrete sand
Reinforced mesh is equipped in slurry.
4. the nonmetallic sound absorption device of a kind of noise abatement according to claim 1, it is characterised in that lateral fin,
The cross section of longitudinal fin is inThe figure surrounded, wherein a=1, c=3,1,0 < z < 3 of -1 < y <.
5. the nonmetallic sound absorption device of a kind of noise abatement according to claim 1, which is characterized in that concrete sand
Slurry is made of sound absorption backboard, sound absorption panel, rock wool/mineral wool, reinforced mesh；Rock is uniformly blended into concrete mortar
Cotton/mineral wool simultaneously the big reinforced mesh such as is arranged, after concrete mortar solidification the one side with fin that is formed be suction every
Sound panel, the opposite other side are sound absorption backboard.
6. a kind of nonmetallic Felt device of innovative noise prevention and cure of pollution according to claim 5, which is characterized in that
The sound absorption backboard, sound absorption panel are formed by concrete mortar primary concreting.
7. a kind of nonmetallic Felt device of innovative noise prevention and cure of pollution according to claim 5, which is characterized in that
It is setting up and down in mold concrete mortar before the sound absorption backboard, sound absorption panel are by concrete mortar primary concreting
The big reinforced mesh such as two layers and mold formation cavity.
8. a kind of nonmetallic Felt device of innovative noise prevention and cure of pollution according to claim 5, which is characterized in that
The sound absorption backboard, sound absorption panel in concrete mortar by being added rock wool or glass before concrete mortar primary concreting
Cotton, the rock wool or mineral wool are added into concrete mortar as sound-absorbing material.
9. a kind of nonmetallic Felt device of innovative noise prevention and cure of pollution, feature according to claim 3 or 5 exist
In skeleton of the reinforced mesh as concrete mortar improves the bond stress between concrete mortar.
10. a kind of nonmetallic Felt device of innovative noise prevention and cure of pollution according to claim 1, it is characterised in that
The noise reduction matrix for thering is lateral fin, longitudinal fin to be formed on the sound absorption panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110059.0A CN108978505A (en) | 2018-09-21 | 2018-09-21 | A kind of nonmetallic sound absorption device of noise abatement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110059.0A CN108978505A (en) | 2018-09-21 | 2018-09-21 | A kind of nonmetallic sound absorption device of noise abatement |
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| Publication Number | Publication Date |
|---|---|
| CN108978505A true CN108978505A (en) | 2018-12-11 |
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ID=64544907
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811110059.0A Withdrawn CN108978505A (en) | 2018-09-21 | 2018-09-21 | A kind of nonmetallic sound absorption device of noise abatement |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0701024A1 (en) * | 1994-08-31 | 1996-03-13 | Cycrollo AG | System for construction of an anti-noise wall |
| CN101497215A (en) * | 2009-01-14 | 2009-08-05 | 中铁电气化局集团有限公司 | Modular reinforced concrete acoustical barrier and method for producing the same |
| KR20100042703A (en) * | 2008-10-17 | 2010-04-27 | 강민하 | Soundproof panel having sound absorbing bar and sound wall using the soundproof panel |
| CN103570291A (en) * | 2013-09-23 | 2014-02-12 | 杨博葳 | Cold-proof thermal-insulation concrete |
| CN105568879A (en) * | 2015-12-31 | 2016-05-11 | 中铁四局集团有限公司 | Railway nonmetal sound absorption plate and preparation method thereof |
| CN205369069U (en) * | 2015-12-16 | 2016-07-06 | 四川云路科技有限公司 | High -speed railway sound barrier is with nonmetal compound sound absorption and insulation board |
| CN107254850A (en) * | 2017-07-27 | 2017-10-17 | 江苏新光环保工程有限公司 | A kind of T-shaped nonmetallic sound-absorbing composite board |
| CN209211305U (en) * | 2018-09-21 | 2019-08-06 | 山西尚风科技股份有限公司 | A kind of nonmetallic sound absorption device of noise abatement |
-
2018
- 2018-09-21 CN CN201811110059.0A patent/CN108978505A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0701024A1 (en) * | 1994-08-31 | 1996-03-13 | Cycrollo AG | System for construction of an anti-noise wall |
| KR20100042703A (en) * | 2008-10-17 | 2010-04-27 | 강민하 | Soundproof panel having sound absorbing bar and sound wall using the soundproof panel |
| CN101497215A (en) * | 2009-01-14 | 2009-08-05 | 中铁电气化局集团有限公司 | Modular reinforced concrete acoustical barrier and method for producing the same |
| CN103570291A (en) * | 2013-09-23 | 2014-02-12 | 杨博葳 | Cold-proof thermal-insulation concrete |
| CN205369069U (en) * | 2015-12-16 | 2016-07-06 | 四川云路科技有限公司 | High -speed railway sound barrier is with nonmetal compound sound absorption and insulation board |
| CN105568879A (en) * | 2015-12-31 | 2016-05-11 | 中铁四局集团有限公司 | Railway nonmetal sound absorption plate and preparation method thereof |
| CN107254850A (en) * | 2017-07-27 | 2017-10-17 | 江苏新光环保工程有限公司 | A kind of T-shaped nonmetallic sound-absorbing composite board |
| CN209211305U (en) * | 2018-09-21 | 2019-08-06 | 山西尚风科技股份有限公司 | A kind of nonmetallic sound absorption device of noise abatement |
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Address after: 030006 18 / F, block B, times Freedom Plaza, 190 Longxing street, Shanxi demonstration zone, Taiyuan City, Shanxi Province Applicant after: Shangfeng Technology Co.,Ltd. Address before: 030006 6th floor, block B, Gaoxin international, high tech Development Zone, Taiyuan City, Shanxi Province Applicant before: SHANXI SHANGFENG TECHNOLOGY Co.,Ltd. |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181211 |