CN105350466B - A kind of polymer particle sound absorption sound barrier of landscape - Google Patents
A kind of polymer particle sound absorption sound barrier of landscape Download PDFInfo
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- CN105350466B CN105350466B CN201510872129.6A CN201510872129A CN105350466B CN 105350466 B CN105350466 B CN 105350466B CN 201510872129 A CN201510872129 A CN 201510872129A CN 105350466 B CN105350466 B CN 105350466B
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- 230000004888 barrier function Effects 0.000 title claims abstract description 44
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- 230000009102 absorption Effects 0.000 claims abstract description 101
- 238000009413 insulation Methods 0.000 claims abstract description 44
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Classifications
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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
- E01F8/02—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic specially adapted for sustaining vegetation or for accommodating plants ; Embankment-type or crib-type noise barriers; Retaining walls specially adapted to absorb or reflect noise
- E01F8/021—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic specially adapted for sustaining vegetation or for accommodating plants ; Embankment-type or crib-type noise barriers; Retaining walls specially adapted to absorb or reflect noise with integral support structure
- E01F8/023—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic specially adapted for sustaining vegetation or for accommodating plants ; Embankment-type or crib-type noise barriers; Retaining walls specially adapted to absorb or reflect noise with integral support structure made of stacked or staggered elements, e.g. hollow
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The present invention relates to sound barrier field, a kind of polymer particle sound absorption sound barrier of landscape, including step-like sound absorption, sound partiting system are disclosed（1）Be arranged on sound absorption, sound partiting system（1）Two columns of both sides（2）, the step-like sound absorption, sound partiting system（1）Absorbed sound by multilayer, sound insulation module group step arrangement forms, the sound absorption of each layer, sound insulation module group are by multiple sound absorptions, sound insulation module（3）Arrange and formed to arrangement, the sound absorption, sound insulation module（3）Including sound absorber（4）And acoustic isolater（5）, the acoustic isolater（5）With the first cavity（18）, sound absorber（4）It is positioned close to sound source side, acoustic isolater（5）It is arranged far from sound source side, the sound absorption, sound partiting system（1）Lower section has and first cavity（18）The space of banketing (8) of connection.The sound barrier of the present invention had not only met urban landscape requirement, but also had good sound absorbing capabilities, overcame the situation that greening sound barrier sound absorbing capabilities are poor at present.
Description
Technical field
The present invention relates to the sound barrier in sound barrier field, more particularly to landscape.
Background technology
With the development of highway, high-speed railway, traffic noise has become the absorbed focus of society.In order to solve to make an uproar
The problem of acoustic disturbance people, sound barrier is widely used in highway, high-speed iron roadside and carrys out noise insulation, what mitigation noise disturbed residents asks
Topic.But currently used metal sound barrier, non-metal sound barrier flat colour, machine-made structure, which easily causes, drives
The visual fatigue of personnel is sailed, or even causes traffic accident, while flat colour also have impact on city with machine-made structure
Beauty.Therefore, greening sound barrier starts to occur at home, but the greening sound barrier used at present is limited by technology, often
On the premise of meeting to afforest, do not possess the performance of sound absorption, landscape and sound absorption is can not achieve unification on sound barrier.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of urban landscape that not only met and require, but also have good sound absorption
The sound barrier of energy, can guarantee that sound absorbing capabilities decades are constant, overcome the situation that greening sound barrier sound absorbing capabilities are poor at present.
The technical solution adopted by the present invention to solve the technical problems is：A kind of polymer particle sound absorption sound-screen of landscape
Barrier, including step-like sound absorption, sound partiting system and sound absorption, two columns of sound partiting system both sides are arranged on, it is described step-like
Sound absorption, sound partiting system is absorbed sound by multilayer, sound insulation module group step arrangement forms, the sound absorption of each layer, sound insulation module group by multiple sound absorptions,
Sound insulation module is arranged to be formed to arrangement, and the sound absorption, sound insulation module include sound absorber and acoustic isolater, and the acoustic isolater has first
Cavity, sound absorber are positioned close to sound source side, and acoustic isolater is arranged far from sound source side, under the sound absorption, sound partiting system
The space banketed that first cavity described in Fang Youyu connects.
Further, the sound barrier further includes backboard and crossbeam, and the crossbeam is made of reinforced concrete, crossbeam
Sound absorption, the lower section of sound insulation module group and the corresponding sound absorption of carrying, sound insulation module group are arranged on, the both ends of the crossbeam are separately fixed at
On the column of both sides, the backboard is arranged on the side that the sound barrier deviates from sound source, and the sound absorption, sound partiting system, stand
The space of banketing is formed between column and backboard.
Further, the sound barrier further includes the upright post basic being arranged at below column, and upright post basic is by mixed mud
It is made, to carry the load of whole column and and keep its stability.
Further, the sound barrier also wraps the cistern for being arranged at space bottom of banketing, and the cistern can be adopted
It is made of existing structure material, such as metal, mixed mud and fiberglass material, cistern is equipped with a plurality of bearing rib, with
Support the weight of soil, the top of cistern is equipped with cistern cover board, and cistern is interior to be equipped with water pump, and water pump can be by a pipe by water
Introduce in the first cavity of the acoustic isolater.
Further, the cistern cover board is particulate acoustic board, it is proposed that use China Patent Publication No. for
The particulate acoustic board of CN104108902A is made, the sound absorption gap formed between the particulate of the particulate acoustic board, while also has
There is the function of drainage, it is demonstrated experimentally that the side of the particulate acoustic board is saturated with water, after 5 seconds, 95% water will be from another
Side is flowed out, therefore particulate acoustic board is also a kind of Water filter material, as cistern cover board in use, it can fast filtering rain
Water, can prevent soil from entering again while rainwater can be made to flow into cistern.
Further, the column is made of reinforced concrete, and for the ease of producing and installing, column uses split knot
Structure, includes the layering column of multiple settings that are stepped, and each structure for being layered column is substantially the same, and each be layered on column is equipped with
For the second cavity, backboard slot and cross beam support hole to banket, the cross beam support hole is transversal through each layering column
Face is set, and the spatial margin of installation crossbeam is left on cross beam support hole, crossbeam is loaded two by certain inclination angle and is stood
In the cross beam support hole of column, fixed after loading with cement.In addition, respectively it there also is provided on layering column easy to higher slice column with
The groove and pillar of column installation positioning are layered, during installation, groove is fixed with pillar with cement.
Further, the backboard is made of reinforced concrete, identical by multiple length for the ease of installation, backboard
Back board module be longitudinally assemblied to form, the height of each back board module is 800-1000mm, in the backboard slot of piecemeal insertion column,
One piece of backboard highly identical with sound barrier is formed, the back board module is equipped with reinforcing rib, to increase backboard to soil
Bearing strength.
Further, the sound absorber is made of particulate acoustic board, it is proposed that use China Patent Publication No. for
The particulate acoustic board of CN104108902A, which is bonded by the particulate of special diameter by bonding agent forms, bonding
Gap between the endless full packing particulate of agent and form sound absorption gap, the sound absorption gap includes can be with adjacent sound absorption gap
The intercommunicating pore communicated and the semi-connected hole that can not be communicated with adjacent sound absorption gap, the hole of the structure has well sound absorption properties
Energy.
Further, the column is made of reinforced concrete, and for the ease of producing and installing, column uses split knot
Structure, includes the layering column of multiple settings that are stepped, and each structure for being layered column is substantially the same, and each be layered on column is equipped with
For the second cavity to banket.
Further, the sound absorber is " E " font structure, and the particulate acoustic board that the sound absorber is made uses 20-
The particle aggregation of 60 mesh forms, and particulate is bonded by modified epoxy bonding agent, and the thickness of the particulate acoustic board is 10-
20mm, in addition, according to the requirement of intensity also metal reinforcing can be set in the inside of acoustic board；The acoustic isolater is rectangle frame
Structure, by cement production systD, the acoustic isolater of cement production systD has a characteristic of low cost, performance is stablized, in the rectangle frame of acoustic isolater
For the first cavity, soil is filled with the first cavity, and plants and there are flowers and plants, the soil of the first cavity and the soil to banket in space
It is integral, easy to water and soil conservation and flowers and plants root growth, improves the survival rate of flowers and plants, mitigate the maintenance cost in later stage；It is described
The open side of sound absorber " E " word docks to form the sound absorption, sound insulation module with a side of acoustic isolater, wherein, acoustic isolater
Interface be equipped with and be used to dock the docking groove of fixed sound absorber；The open side of sound absorber " E " word is closed by acoustic isolater,
The cavity resonance sound absorption structure that thickness is 50-100mm is formed, which is a kind of efficient sound absorption structure, is not required to using common
Sound absorption cotton, its sound absorbing capabilities stablize, under natural environment can long-time service, will not be influenced by rainwater, dust.The suction
Sound, sound insulation module are mounted to the step-like sound absorption, sound partiting system using technique of laying bricks, specifically, upper strata sound absorption, sound insulation mould
The front end of block rides over lower floor's sound absorption, the top of sound insulation module, and rear end ridden on crossbeam, it should be noted that, wherein the sound absorption of bottom,
Sound insulation module is placed directly within ground, without riding on crossbeam.
The beneficial effects of the invention are as follows：A kind of urban landscape that not only met is provided to require, but also with good sound-absorbing performance
Sound barrier, the step-like sound absorption of the sound barrier, in sound partiting system, all kinds have a flowers and plants in each acoustic isolater, thus green coverage compared with
Greatly, landscape effect is very good, also, the banket soil in space of the soil in acoustic isolater and lower section is connected as a single entity, easy to water
Soil is kept and flowers and plants root growth, improves the survival rate of flowers and plants.Both it can guarantee that using sound absorber made of particulate acoustic board good
Good sound absorbing capabilities, and can guarantee that sound absorbing capabilities decades do not reduce, it is poor to overcome greening sound barrier sound absorbing capabilities at present
Situation.The sound absorption of the present invention, sound partiting system employ modularized design, and sound absorption, sound insulation module are produced easy to factory mass, had
Beneficial to reducing cost, and absorb sound, sound insulation module using conventional process Installation of laying bricks, it is easy for installation simple.
Brief description of the drawings
Fig. 1 is the top view of embodiment 1；
Fig. 2 is the schematic diagram in A-A direction of Fig. 1；
Fig. 3 is the expanded schematic diagram of 1 column of embodiment and upright post basic；
Fig. 4 is sound absorption, the schematic diagram of sound insulation module in Fig. 1；
Fig. 5 is sound absorption, the top view of sound insulation module shown in Fig. 4；
Fig. 6 is the schematic diagram of Fig. 1 middle cross beams；
Fig. 7 is the schematic diagram of Fig. 1 dorsulum components；
Fig. 8 is the schematic diagram of embodiment 2；
In figure mark for：1- sound absorptions, sound partiting system, 2- columns, 3- sound absorptions, sound insulation module, 4- sound absorbers, 5- acoustic isolaters,
6- backboards, 7- crossbeams, 8- banket space, 9- cisterns, 10- cistern cover boards, the second cavitys of 11-, 12- backboard slots, and 13- is horizontal
Beam supported hole, 14- reinforcing ribs, 15- docking grooves, 16- upright post basics, 17- mounds, the first cavitys of 18-.
Embodiment
The present invention is described in further detail with reference to specific embodiment, but embodiments of the present invention are not limited to
This.
Embodiment 1：Sound absorption, sound partiting system in the present embodiment are formed using seven layers of sound absorption, sound insulation module group step arrangement,
Column 2 is formed using the layering column of the four layers of setting that is stepped.
As shown in Fig. 1-Fig. 7, a kind of polymer particle sound absorption sound barrier of landscape of the invention, including step-like suction
Sound, sound partiting system 1 and sound absorption, two columns 2 of 1 both sides of sound partiting system are arranged on, the step-like sound absorption, sound partiting system 1
Be made of seven layers of sound absorption, sound insulation module group step arrangement, the sound absorption of each layer, sound insulation module group from multiple sound absorptions, sound insulation module 3 arrange to
Arrangement forms, and the sound absorption, sound insulation module 3 include sound absorber 4 and acoustic isolater 5, and sound absorber 4 is positioned close to sound source side,
Acoustic isolater 5 is arranged far from sound source side.The column 2 is made of reinforced concrete, and column 2 is stepped including four layers and sets
The layering column put, the second cavity 11, backboard slot 12 and cross beam support hole for banketing are equipped with four layers of layering column
13, specifically, 11 volume of the second cavity of top layer layering column is maximum, it is arranged on the top surface of top layer layering column, other three layers
The second cavity 11 be arranged at the front end of each layering column, the backboard slot 12 is arranged on four layers of layering column and deviates from sound
The side in source, the cross beam support hole 13 are set through the cross section of each layering column, and installation is left on cross beam support hole 13
Spatial margin.In addition, it there also is provided the groove easy to higher slice column and the installation positioning of lower leaf column on four layers of layering column
With pillar, during installation, groove is fixed with pillar with cement.The lower section of column 2 is equipped with upright post basic 16 made of mixed mud,
To carry the load of whole column 2 and and keep its stability.
The sound barrier further includes backboard 6 and crossbeam 7.The crossbeam 7 is made of reinforced concrete, and crossbeam 7 is set
Sound absorption, sound insulation module group lower section and carry corresponding sound absorption, sound insulation module group, in order to have more preferable stability, the horizontal stroke
Beam 7 uses T-shaped structure, and the both ends of the crossbeam 7 are separately fixed in the cross beam support hole 13 of both sides layering column, due to
Installation space surplus is left on cross beam support hole 13, crossbeam 7 is loaded the cross beam support of both sides by certain inclination angle
In hole 13, fixed after loading with cement.The backboard 6 is identical by multiple length, highly mixes mud for the reinforcing bar of 800-1000mm
Back board module is longitudinally assemblied to form made of soil, and each back board module is inserted in the backboard slot 12, and back board module is equipped with
Reinforcing rib 14.Space 8 of banketing is formed between the sound absorption, sound partiting system 1, column 2 and backboard 6.
In addition, 8 bottom of space of banketing can also set cistern 9, cistern 9 can use existing structure material system
Into such as metal, mixed mud and fiberglass material, cistern 9 are equipped with a plurality of bearing rib, and top is equipped with cistern cover board
10, cistern 9 is interior to be equipped with water pump, and water pump can be introduced the water into by a pipe in the first cavity 18 of the acoustic isolater 5.
The sound absorber 4 uses China Patent Publication No. to be made of the particulate acoustic board of CN104108902A, and particulate is inhaled
Sound plate is bonded by bonding agent by the particulate of special diameter and is formed, the gap between the endless full packing particulate of bonding agent and form suction
Sound gap, the sound absorption gap include the intercommunicating pore that can be communicated with adjacent sound absorption gap and can not be with adjacent sound absorption gaps
The semi-connected hole communicated, the hole of the structure have good sound absorbing capabilities.The cistern cover board 10 also uses Chinese patent
The particulate acoustic board of Publication No. CN104108902A is made, the sound absorption gap formed between the particulate of the particulate acoustic board,
Also there is drainage at the same time, it is demonstrated experimentally that the side of the particulate acoustic board is saturated with water, after 5 seconds, 95%
Water will be flowed out from opposite side, therefore particulate acoustic board is also a kind of Water filter material, as cistern cover board in use, it can be fast
Speed filtering rainwater, can prevent soil from entering again while rainwater can be made to flow into cistern.
The sound absorber 4 is " E " font structure, and the particulate acoustic board that the sound absorber 4 is made is micro- using 20-60 purposes
Grain is polymerized, and particulate is bonded by modified epoxy bonding agent, and the thickness of the particulate acoustic board is 10-20mm, separately
Outside, metal reinforcing can also be set in the inside of acoustic board according to the requirement of intensity.The acoustic isolater 5 is rectangular frame structure,
Wall thickness 15-25mm, by cement production systD, the acoustic isolater 5 of cement production systD has characteristic of low cost, performance is stablized, acoustic isolater 5
It is the first cavity 18 in rectangle frame.The open side of sound absorber 4 " E " word docked with a side of acoustic isolater 5 to be formed it is described
Sound absorption, sound insulation module 3, wherein, the interface of acoustic isolater 5 is equipped with the docking groove 15 for being used for docking fixed sound absorber 4, described
The open side of sound absorber " E " word is closed by acoustic isolater, forms the cavity resonance sound absorption structure that thickness is 50-100mm, which is
A kind of efficient sound absorption structure, is not required to use common sound absorption cotton, its sound absorbing capabilities is stablized, under natural environment can long-time service,
It will not be influenced by rainwater, dust.The sound absorption, sound insulation 3 pieces of uses of mould lay bricks technique be mounted to the step-like sound absorption,
Insulate against sound 1 system, specifically, upper strata sound absorption, the front end of sound insulation module ride over lower floor's sound absorption, the top of sound insulation module, rear end rides over
On crossbeam 7, it should be noted that, wherein the sound absorption of bottom, sound insulation module are placed directly within ground, without riding on crossbeam.
The sound barrier of the present embodiment is installing sound absorption, sound partiting system 1 and column 2, and after plugging backboard 6, is first banketing
Soil is filled up in space 8, then soil is filled out in the first cavity 18 of acoustic isolater 5 and in the second cavity 11 of layering column,
Flowers and plants just form the sound barrier of landscape in kind.Since the soil in the first cavity 18 and the soil to banket in space 8 are one
, therefore it is easy to water and soil conservation and flowers and plants root growth, the survival rate of flowers and plants can be improved, mitigates the maintenance cost in later stage.It is described
Cistern 9 in water pump can be introduced the water into by a pipe in the first cavity 18 of the acoustic isolater 5, to flowers and plants supply water, in addition,
Water transformed into soil can be also added in soil, just can be filled according to the volume moisture content automatic start point of soil.
Embodiment 2：
As shown in figure 8, the sound barrier of the present invention can also be used mound 17 and implement, a kind of polymer particle sound absorption of landscape
Sound barrier, including step-like sound absorption, sound partiting system 1 and it is arranged on sound absorption, two columns 2 of 1 both sides of sound partiting system.
In the present embodiment, sound absorption, sound partiting system 1 and the embodiment of column 2 exist with the difference of embodiment 1
In, the sound absorption, sound partiting system 1 absorb sound at the middle and upper levels, the front end of sound insulation module rides over lower floor's sound absorption, the top of sound insulation module, after
End is directly ridden on mound 17, is not required to set backboard slot 12 and cross beam support hole 13 on the column 2.Sound absorption, sound partiting system 1
It is same as Example 1 with other embodiments of column 2.
The present embodiment is when it is implemented, mound 17 is sorted out accordingly according to sound absorption, the height of sound insulation module 3, thickness
Sound absorption, sound insulation module 3, are then installed on step-like mound 17 by forge piece of step type structure again, and finally first in acoustic isolater 5 is empty
Intracavitary fills out soil, and flowers and plants just form the sound barrier of landscape in kind.
Claims (9)
- A kind of 1. polymer particle sound absorption sound barrier of landscape, it is characterised in that：Including step-like sound absorption, sound partiting system （1）Be arranged on sound absorption, sound partiting system（1）Two columns of both sides（2）, the step-like sound absorption, sound partiting system（1）By more Layer sound absorption, sound insulation module group step arrangement composition, each layer sound absorption, sound insulation module group are by multiple sound absorptions, sound insulation module（3）Arrange to row Cloth forms, the sound absorption, sound insulation module（3）Including sound absorber（4）And acoustic isolater（5）, the acoustic isolater（5）It is empty with first Chamber（18）, sound absorber（4）It is positioned close to sound source side, acoustic isolater（5）Be arranged far from sound source side, the sound absorption, every Sound system（1）Lower section has and first cavity（18）The space of banketing (8) of connection.
- A kind of 2. polymer particle sound absorption sound barrier of landscape according to claim 1, it is characterised in that：The sound Barrier further includes backboard（6）And crossbeam（7）, the crossbeam（7）It is corresponding to be arranged on sound absorption, the lower section of sound insulation module group and carrying Sound absorption, sound insulation module group, the crossbeam（7）Both ends be separately fixed at the columns of both sides（2）On；The backboard（6）Set Deviate from the side of sound source in the sound barrier；The sound absorption, sound partiting system（1）, column（2）And backboard（6）Between form institute The space of banketing stated（8）.
- A kind of 3. polymer particle sound absorption sound barrier of landscape according to claim 2, it is characterised in that：The sound Barrier also wraps and is arranged at space of banketing（8）The cistern of bottom（9）, the cistern（9）A plurality of bearing rib is equipped with, is stored Pond（9）Top be equipped with cistern cover board（10）, cistern（9）It is interior to be equipped with water pump.
- 4. a kind of polymer particle sound absorption sound barrier of landscape according to claim 3, it is characterized in that：The cistern Cover board（10）For particulate acoustic board.
- 5. the polymer particle sound absorption sound barrier of a kind of landscape according to Claims 2 or 3, it is characterised in that described Column（2）Include the layering column of multiple settings that are stepped, it is each to be layered the second cavity being equipped with column for banketing （11）, backboard slot（12）With cross beam support hole（13）.
- 6. the polymer particle sound absorption sound barrier of a kind of landscape according to Claims 2 or 3, it is characterised in that described Backboard（6）Longitudinally it is assemblied to form by the identical back board module of multiple length, the back board module is equipped with reinforcing rib（14）.
- 7. a kind of polymer particle sound absorption sound barrier of landscape according to claim 1, it is characterized in that：The sound absorption Body（4）It is made of particulate acoustic board.
- 8. the polymer particle sound absorption sound barrier of a kind of landscape according to claim 1, it is characterised in that described is vertical Column（2）Include the layering column of multiple settings that are stepped, it is each to be layered the second cavity being equipped with column for banketing（11）.
- A kind of 9. polymer particle sound absorption sound barrier of landscape according to claim 1,2 or 3, it is characterised in that institute The sound absorber stated（4）For " E " font structure, acoustic isolater（5）For rectangular frame structure；The sound absorber（4）The open side of " E " word with Acoustic isolater（5）A side dock to form the sound absorption, sound insulation module（3）, wherein, acoustic isolater（5）Interface on set It is useful for docking fixed sound absorber（4）Docking groove（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510872129.6A CN105350466B (en) | 2015-12-03 | 2015-12-03 | A kind of polymer particle sound absorption sound barrier of landscape |
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| CN201510872129.6A CN105350466B (en) | 2015-12-03 | 2015-12-03 | A kind of polymer particle sound absorption sound barrier of landscape |
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| CN105350466A CN105350466A (en) | 2016-02-24 |
| CN105350466B true CN105350466B (en) | 2018-04-13 |
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| CN108343000B (en) * | 2017-01-23 | 2024-03-15 | 正升环境科技股份有限公司 | Sound absorption and insulation unit and greening sound barrier using same |
| CN107326818B (en) * | 2017-08-08 | 2023-09-19 | 正升环境科技股份有限公司 | Integrated sound absorption and insulation barrier plate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205223884U (en) * | 2015-12-03 | 2016-05-11 | 四川正升声学科技有限公司 | Polymerized particle of viewization inhales sound insulation sound barrier |
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| DE102004014790A1 (en) * | 2004-03-24 | 2005-10-13 | Wolfgang Deutschle | Construction element of compacted sewage sludge especially for sound or sight barriers consists of mixture comprising sewage sludge and binding material additive which in mould is then hardened or compacted into geometric shape |
| KR100542737B1 (en) * | 2005-10-05 | 2006-01-11 | 주식회사 대호이엔씨 | Soundproofing wall structure of road |
| KR101048499B1 (en) * | 2010-09-13 | 2011-07-11 | 오준성 | Four season vegetation loess sound proof wall and construction method using the same |
| CN201981491U (en) * | 2010-12-20 | 2011-09-21 | 湖南省交通科学研究院 | Modularized ecologic acoustic barrier |
| CN104108902B (en) * | 2014-07-22 | 2016-05-11 | 四川正升声学科技有限公司 | A kind of particulate acoustic board and preparation method thereof |
| CN204530524U (en) * | 2015-01-30 | 2015-08-05 | 凌金根 | A kind of environmental noise barrier |
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| CN205223884U (en) * | 2015-12-03 | 2016-05-11 | 四川正升声学科技有限公司 | Polymerized particle of viewization inhales sound insulation sound barrier |
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| CN105350466A (en) | 2016-02-24 |
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Denomination of invention: A landscape polymeric particle sound absorbing and isolating barrier Effective date of registration: 20220324 Granted publication date: 20180413 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: ZHENG SHENG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Registration number: Y2022510000074 |
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