CN105863684A - Tunnel side wall sound absorption structure - Google Patents
Tunnel side wall sound absorption structure Download PDFInfo
- Publication number
- CN105863684A CN105863684A CN201610360715.7A CN201610360715A CN105863684A CN 105863684 A CN105863684 A CN 105863684A CN 201610360715 A CN201610360715 A CN 201610360715A CN 105863684 A CN105863684 A CN 105863684A
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- CN
- China
- Prior art keywords
- sound absorption
- tunnel
- absorption structure
- support
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 80
- 239000006096 absorbing agent Substances 0.000 claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims description 25
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to a tunnel side wall sound absorption structure which comprises a support system fixed to a tunnel side wall, a sound absorption panel and a sound absorber cavity, wherein the sound absorption panel is parallel to the tunnel side wall and is fixed to the support system, and the sound absorber cavity is formed by the tunnel side wall, a back support frame and the sound absorption panel. The tunnel side wall sound absorption structure is capable of effectively reducing the noise source intensity of a tunnel open segment; according to analog computation, the noise source intensity of the open segment can be reduced by at least 2dB after a side wall sound absorber is set.
Description
Technical field
The present invention relates to tunnel-side sound absorption structure.
Background technology
In recent years, along with road traffic and the development of urban construction, the through street that traffic flow is big and travel speed is high exists
Extensively building in city and come into operation, city expressway is no lack of employing underpass, cross-river tunnel, overpass, ground etc. no
Same combining form.The thing followed is that the traffic noise problem that disturbs residents is the most serious.Because of noise disturb residents the complaint of problem measure also time
There is generation.
At present for the commonly used sound barrier of noise abatement of city expressway overpass, ground segment, and sound barrier exists
Overpass, ground segment have had universal popularization, but the sound absorption for through street tunnel sidewalls processes the most out in the cold.
Existing tunnel sidewall mostly is cement wall liner block and forms, and belongs to rigidity acoustical material, easily forms sound reflection, especially
It is that in tunnel and open section easily forms the longer reverberation time for lower frequency sounds.The increase of reverberation time, except meeting
Cause open section noise source strength to increase, affect sensitive spot around tunnel exit open section, also easily increase and use passerby's mental pressure
Phenomenon irritated with generation.Arranging strong sound absorption structure in side walls is a kind of administering method being effectively improved tunnel acoustic environment.
Summary of the invention
In order to solve above-mentioned technical problem, one aspect of the present invention provides a kind of tunnel-side sound absorption structure, described tunnel
Sidewall sound absorption structure includes the support system being fixed on tunnel-side, is parallel to tunnel-side and is fixed on the sound absorption of support system
Panel, and the sound absorber cavity formed by tunnel-side and sound absorption panel.Described sound absorption panel back also sets up for keeping
The back support of sound absorption panel-shaped.
Described back support is two square tubes intersected, and the four of sound absorption panel are fixed at the two ends of described two square tubes
Angle.
Described sound absorption panel is modularized design, is detachably secured to support system.
Described sound absorption panel is compound pin hole acoustic board, described compound pin hole acoustic board surface uniform triangular pyramidal micropore.
Described compound pin hole acoustic board is square, the length of side 0.7 ~ 0.8mm, described triangular pyramidal micropore pitch-row 1.5 ~ 2mm,
Described percent opening is 5-20%.
Described compound pin hole acoustic board is compound pin hole sound-absorbing aluminum plate.
Described compound pin hole acoustic board is sound absorption aluminium sheet in flanging compound needle hole in surrounding.
Described support system is made up of support, longitudinal Os Draconis, lateral keel, and described support is fixed on tunnel-side, described
Longitudinal Os Draconis are fixed on the support other end, and lateral keel is fixed on longitudinal Os Draconis.
Described back support and sound absorption panel pass through bolt and threaded rustless steel trim with longitudinal Os Draconis even
Connect fixing.
Described support system can need to adjust sound absorber cavity thickness by regulation support height according to scene.
The tunnel-side sound absorption structure of the present invention can effectively reduce tunnel open section noise source strength, calculates according to simulation, if
Open section source strength can be reduced by more than 2 decibels after putting this sidewall sound absorber.
The tunnel-side sound absorption structure sound absorber panel of the present invention is modular, detachably, and convenient maintenance and replacing.
The tunnel-side sound absorption structure of the present invention sound absorption panel after arrange certain cavity can form have good
The sound absorber of sound absorbing capabilities, it is not necessary to internal filling sucting sound material such as acoustical cotton, had both avoided secondary pollution and can also reduce simultaneously
Cost, can also install pipeline simultaneously in cavity.
After the sound absorption panel of the tunnel-side sound absorption structure of the present invention cavity height can consider plan row line conditions,
The situations such as noise elimination frequency spectrum are adjusted.
It is more readily understood the above-mentioned of the application and other features, aspect and advantage with reference to described further below.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the tunnel-side sound absorption structure of the present invention.
Fig. 2 is the side schematic diagram of the tunnel-side sound absorption structure of the present invention.
Fig. 3 is the close-up schematic view of the side schematic diagram of the tunnel-side sound absorption structure of the present invention.
Wherein, reference is as follows:
Sound absorption panel 1 back support 11 rustless steel trim 12
Support system 2 sound absorber cavity 3 support 21, longitudinal Os Draconis 22, lateral keel 23
Tunnel-side 4.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this
Bright a part of embodiment rather than whole embodiments.Based on described embodiments of the invention, ordinary skill
All other embodiments that personnel are obtained on the premise of without creative work, broadly fall into the scope of protection of the invention.
Unless otherwise defined, technical term used herein or scientific terminology have in shoulding be art of the present invention
The ordinary meaning that the personage of general technical ability is understood.Present patent application description and claims use " the
One ", " second " and similar word be not offered as any order, quantity or importance, and be used only to distinguish different
Ingredient.Equally, the similar word such as " " or " " does not indicates that quantity limits yet, but represents and there is at least one.
A kind of tunnel-side sound absorption structure, described tunnel-side sound absorption structure includes the support system being fixed on tunnel-side
System, is parallel to tunnel-side and is fixed on the sound absorption panel of support system, and the suction formed by tunnel-side and sound absorption panel
Sound body cavity.
As the preferred technical scheme of one, sound absorption panel back of the present invention also sets up for keeping the panel that absorbs sound
The back support of shape.
As the preferred technical scheme of one, back support of the present invention is two square tubes intersected, described two
The corner of sound absorption panel is fixed at the two ends of root square tube.
As the preferred technical scheme of one, sound absorption panel of the present invention is modularized design, is removably secured
In support system.
As the preferred technical scheme of one, sound absorption panel of the present invention is compound pin hole acoustic board, described compound
Pin hole acoustic board surface uniform triangular pyramidal micropore.
As the preferred technical scheme of one, compound pin hole acoustic board of the present invention is square, the length of side 0.7 ~
0.8mm, described triangular pyramidal micropore pitch-row 1.5 ~ 2mm, described percent opening is 5-20%.
As the preferred technical scheme of one, compound pin hole acoustic board of the present invention is compound pin hole sound-absorbing aluminum plate.
As the preferred technical scheme of one, compound pin hole acoustic board of the present invention is flanging compound needle hole in surrounding
Sound absorption aluminium sheet.
As the preferred technical scheme of one, support system of the present invention is by support, longitudinal Os Draconis, lateral keel group
Becoming, described support is fixed on tunnel-side, and described longitudinal Os Draconis are fixed on the support other end, and lateral keel is fixed on longitudinal dragon
Bone.
As the preferred technical scheme of one, back support of the present invention and sound absorption panel by bolt and band
The rustless steel trim of screw thread is connected fixing with longitudinal Os Draconis.
As the preferred technical scheme of one, support system of the present invention can need by regulation according to scene
Frame height adjustment sound absorber cavity thickness.
The tunnel sidewalls sound absorption structure of the present invention mainly by sound absorption panel, support system, connecting bolt, decorative nuts and
Cavity forms.
The sound absorption panel of the side wall sound absorption structure of the present invention uses compound pin hole sound-absorbing aluminum plate, owing to its finished surface is uniform
Triangular pyramidal micropore, the length of side 0.7 ~ 0.8mm, pitch-row 1.5 ~ 2mm percent opening about 10%, pyrometric cone waveform and small salient point are not only
The sound wave that can make reflection mutually collides interference and produces decay, has good acoustically effective.This sound absorption panel is at cavity 100mm
Time, NRC ＞=0.65, it is widely used in metallic sound barrier sound absorption panel.This is that this kind of material first Application is in tunnel sidewalls sound absorber
In.It has back support to carry out intensity reinforcement behind.Back support and sound absorption panel by bolt and threaded not
Rust steel trim jointly acts on and is connected fixing with longitudinal Os Draconis.
After the sound absorption panel of the present invention, certain cavity is set and can form the sound absorber with good sound absorbing capabilities, nothing
Need internal filling sucting sound material such as acoustical cotton, both avoided secondary pollution and can also reduce cost simultaneously, and also might be used in cavity simultaneously
To install pipeline.
The support system of the present invention is made up of lateral keel, longitudinal Os Draconis, support, corner brace and M10 chemical bolt.Laterally
Os Draconis use galvanized bolt to fix with longitudinal Os Draconis, and longitudinal Os Draconis use bolt to fix with support, and support uses corner brace and chemistry
It is bolted on side wall.It is thick that this support system can need to adjust sound absorber cavity by regulation support height according to scene
Degree.
The side wall sound absorption structure sound absorption panel of the present invention uses modular, detachable design, by using galvanized bolt
With rustless steel decorative nuts sound absorber is fixed on the detachable function realizing panel on longitudinal Os Draconis, facilitates metal decking more
Change and the maintenance of cavity gut line.
As Figure 1-3, tunnel-side sound absorption structure, described tunnel-side sound absorption structure includes being fixed on tunnel-side
Support system, is parallel to tunnel-side and is fixed on the sound absorption panel of support system, and by tunnel-side, back support and
The sound absorber cavity that sound absorption panel is formed.Described sound absorption panel is modularized design, is detachably secured to support system.Described
Sound absorption panel is sound absorption aluminium sheet in flanging compound needle hole in surrounding, and the uniform triangular pyramidal in described compound pin hole acoustic board surface is micro-
Hole.Described compound pin hole acoustic board is square, and the length of side 0.7 ~ 0.8mm, described triangular pyramidal micropore pitch-row 1.5 ~ 2mm are described
Percent opening is about 10%.Described support system is by lateral keel, longitudinal Os Draconis, support, corner brace, chemical bolt and galvanized bolt group
Becoming, lateral keel and longitudinal Os Draconis are fixed on tunnel-side by described bolt, and described support is fixed by corner brace and chemical bolt
In tunnel-side, described longitudinal Os Draconis are fixed with support by galvanized bolt, and described lateral keel passes through galvanized bolt and longitudinal direction
Os Draconis are fixed, and described sound absorption panel is fixed on described support.Described support is the network being made up of several square tubes.Described vertical
45 degree of angles are become with square tube to Os Draconis.Described support and sound absorption panel are by bolt and threaded rustless steel trim and longitudinal direction
Os Draconis connect fixing.Described support system can need to adjust sound absorber cavity thickness by regulation support height according to scene.
The above, only presently preferred embodiments of the present invention, it is not intended to limit protection scope of the present invention.Every
The impartial change done according to present invention and modification, be encompassed by the scope of the claims of the present invention.
Claims (10)
1. a tunnel-side sound absorption structure, described tunnel-side sound absorption structure includes the support system being fixed on tunnel-side,
It is parallel to tunnel-side and is fixed on the sound absorption panel of support system, and the sound absorber formed by tunnel-side and sound absorption panel
Cavity, described sound absorption panel back also sets up the back support for keeping sound absorption panel-shaped.
A kind of tunnel-side sound absorption structure the most according to claim 1, it is characterised in that described back support is for intersecting
Two square tubes, the two ends of described two square tubes be fixed on sound absorption panel corner.
A kind of tunnel-side sound absorption structure the most according to claim 1, it is characterised in that described sound absorption panel is modularity
Design, is detachably secured to support system.
A kind of tunnel-side sound absorption structure the most according to claim 1, it is characterised in that described sound absorption panel is compound needle
Hole acoustic board, described compound pin hole acoustic board surface uniform triangular pyramidal micropore.
A kind of tunnel-side sound absorption structure the most according to claim 4, it is characterised in that described compound pin hole acoustic board is
Square, the length of side 0.7 ~ 0.8mm, described triangular pyramidal micropore pitch-row 1.5 ~ 2mm, described percent opening is 10%.
A kind of tunnel-side sound absorption structure the most according to claim 4, it is characterised in that described compound pin hole acoustic board is
Compound pin hole sound-absorbing aluminum plate.
A kind of tunnel-side sound absorption structure the most according to claim 4, it is characterised in that described compound pin hole acoustic board is
Sound absorption aluminium sheet in flanging compound needle hole in surrounding.
A kind of tunnel-side sound absorption structure the most according to claim 1, it is characterised in that described support system by support,
Longitudinal Os Draconis, lateral keel composition, described support is fixed on tunnel-side, and described longitudinal Os Draconis are fixed on the support other end, horizontal
It is fixed on longitudinal Os Draconis to Os Draconis.
A kind of tunnel-side sound absorption structure the most according to claim 8, it is characterised in that described back support and sound absorption
Panel is connected fixing by bolt and threaded rustless steel trim with longitudinal Os Draconis.
A kind of tunnel-side sound absorption structure the most according to claim 8, it is characterised in that described support system can root
Need to adjust sound absorber cavity thickness by regulation support height according to scene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610360715.7A CN105863684A (en) | 2016-05-29 | 2016-05-29 | Tunnel side wall sound absorption structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610360715.7A CN105863684A (en) | 2016-05-29 | 2016-05-29 | Tunnel side wall sound absorption structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105863684A true CN105863684A (en) | 2016-08-17 |
Family
ID=56642445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610360715.7A Pending CN105863684A (en) | 2016-05-29 | 2016-05-29 | Tunnel side wall sound absorption structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105863684A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638342A (en) * | 2016-12-01 | 2017-05-10 | 辽宁融达新材料科技有限公司 | Foamed aluminum substrate sound barrier of U-shaped beam of metro |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285318Y (en) * | 1996-02-07 | 1998-07-01 | 上海申华声学装备有限公司 | Pore sound-absorbing screen |
| CN2627056Y (en) * | 2003-08-06 | 2004-07-21 | 北京绿创环保科技有限责任公司 | Micro-perforated absorbent lined barrier board |
| CN202081391U (en) * | 2011-05-12 | 2011-12-21 | 北京维文特环保技术开发有限公司 | Sound absorption and prevention barrier plate |
| CN103510477A (en) * | 2013-09-03 | 2014-01-15 | 江苏远兴环保集团有限公司 | Hanging type acoustic board used for tunnel |
| CN104652303A (en) * | 2015-01-06 | 2015-05-27 | 西安中交万向科技股份有限公司 | Novel noise elimination structure and elimination method for road |
| CN205689226U (en) * | 2016-05-29 | 2016-11-16 | 中海环境科技(上海）股份有限公司 | Tunnel-side sound absorption structure |
-
2016
- 2016-05-29 CN CN201610360715.7A patent/CN105863684A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285318Y (en) * | 1996-02-07 | 1998-07-01 | 上海申华声学装备有限公司 | Pore sound-absorbing screen |
| CN2627056Y (en) * | 2003-08-06 | 2004-07-21 | 北京绿创环保科技有限责任公司 | Micro-perforated absorbent lined barrier board |
| CN202081391U (en) * | 2011-05-12 | 2011-12-21 | 北京维文特环保技术开发有限公司 | Sound absorption and prevention barrier plate |
| CN103510477A (en) * | 2013-09-03 | 2014-01-15 | 江苏远兴环保集团有限公司 | Hanging type acoustic board used for tunnel |
| CN104652303A (en) * | 2015-01-06 | 2015-05-27 | 西安中交万向科技股份有限公司 | Novel noise elimination structure and elimination method for road |
| CN205689226U (en) * | 2016-05-29 | 2016-11-16 | 中海环境科技(上海）股份有限公司 | Tunnel-side sound absorption structure |
Non-Patent Citations (2)
| Title |
|---|
| 上海博网新型环保材料有限公司: "复合针孔铝吸声板", 《企业标准》 * |
| 周小东: "录音工程师手册", 《中国广播电视出版社》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638342A (en) * | 2016-12-01 | 2017-05-10 | 辽宁融达新材料科技有限公司 | Foamed aluminum substrate sound barrier of U-shaped beam of metro |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |