RU2011149274A - ACOUSTIC SCREENING DEVICE FOR DIMINISHING TRAFFIC NOISE OF ROAD TRAFFIC - Google Patents

ACOUSTIC SCREENING DEVICE FOR DIMINISHING TRAFFIC NOISE OF ROAD TRAFFIC Download PDF

Info

Publication number
RU2011149274A
RU2011149274A RU2011149274/03A RU2011149274A RU2011149274A RU 2011149274 A RU2011149274 A RU 2011149274A RU 2011149274/03 A RU2011149274/03 A RU 2011149274/03A RU 2011149274 A RU2011149274 A RU 2011149274A RU 2011149274 A RU2011149274 A RU 2011149274A
Authority
RU
Russia
Prior art keywords
noise
mat
frame
air gap
absorber
Prior art date
Application number
RU2011149274/03A
Other languages
Russian (ru)
Inventor
Берне ЕЭВЕ
Original Assignee
З-Блок Интернэшнл Аб
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by З-Блок Интернэшнл Аб filed Critical З-Блок Интернэшнл Аб
Publication of RU2011149274A publication Critical patent/RU2011149274A/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0076Cellular, e.g. as wall facing
    • E01F8/0082Cellular, e.g. as wall facing with damping material
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0023Details, e.g. foundations
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0029Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers

Abstract

1. Акустическое экранирующее устройство (1) для ослабления беспокоящего шума, в частности шума от автомобильного движения, железнодорожного движения и т.п., содержащее каркас (2), предпочтительно из бетона, и шумопоглотитель (3), расположенный на нем, предпочтительно установленный плоско на каркасе (2), при этом шумопоглотитель выполнен в виде сменной кассеты (3), содержащей шумопоглощающий мат (13),отличающееся тем, что- за шумопоглощающим матом (13) расположен интегрированный в кассету (3) формирователь (14) воздушного зазора для образования воздушного зазора (15) между шумопоглощающим матом (13) и каркасом (2);- при этом формирователь (14) воздушного зазора расположен для образования множества ячеек (16) или отделений между шумопоглощающим матом (13) и каркасом (2), при этом ячейки (16) или отделения образуют, по существу, замкнутые воздушные объемы;- при этом шумопоглощающий мат (13) выполнен, по меньшей мере, до некоторой степени шумо- и воздухопроницаемым.2. Устройство по п.1, отличающееся тем, что шумопоглотитель (3) состоит из мата (13) из гранулированной резины.3. Устройство по п.2, отличающееся тем, что гранулы резины связаны в мат (13) таким образом, что в мате (13) образованы воздухопроницаемые поры или каналы.4. Устройство по п.1, отличающееся тем, что шумопоглотитель (3) установлен на, по существу, плоской бетонной поверхности.5. Устройство по любому из пп.1-4, отличающееся тем, что воздушный зазор (15) имеет ширину 10-60 мм.6. Устройство по любому из пп.1-4, отличающееся тем, что воздушный зазор (15) имеет ширину предпочтительно 30 мм.7. Устройство по любому из пп.1-4, отличающееся тем, что передняя поверхность шумопоглотителя (3) расположена, по существу, н�1. An acoustic shielding device (1) for attenuating disturbing noise, in particular noise from automobile traffic, railway traffic and the like, comprising a frame (2), preferably made of concrete, and a noise absorber (3) located on it, preferably mounted flat on the frame (2), while the noise absorber is made in the form of a removable cartridge (3) containing a noise-absorbing mat (13), characterized in that behind the noise-absorbing mat (13) there is an air gap former (14) integrated into the cartridge (3) for air formation clearance (15) between the noise-absorbing mat (13) and the frame (2); while the air gap former (14) is located to form a plurality of cells (16) or compartments between the noise-absorbing mat (13) and the frame (2), while the cells (16) or compartments form essentially closed air volumes; in this case, the noise-absorbing mat (13) is made at least to some extent noise- and breathable. 2. The device according to claim 1, characterized in that the silencer (3) consists of a mat (13) of granular rubber. The device according to claim 2, characterized in that the rubber granules are bonded into the mat (13) in such a way that breathable pores or channels are formed in the mat (13). The device according to claim 1, characterized in that the noise absorber (3) is mounted on a substantially flat concrete surface. A device according to any one of claims 1 to 4, characterized in that the air gap (15) has a width of 10-60 mm. A device according to any one of claims 1 to 4, characterized in that the air gap (15) has a width of preferably 30 mm. A device according to any one of claims 1 to 4, characterized in that the front surface of the noise absorber (3) is located essentially n�

Claims (9)

1. Акустическое экранирующее устройство (1) для ослабления беспокоящего шума, в частности шума от автомобильного движения, железнодорожного движения и т.п., содержащее каркас (2), предпочтительно из бетона, и шумопоглотитель (3), расположенный на нем, предпочтительно установленный плоско на каркасе (2), при этом шумопоглотитель выполнен в виде сменной кассеты (3), содержащей шумопоглощающий мат (13),1. An acoustic shielding device (1) for attenuating disturbing noise, in particular noise from automobile traffic, railway traffic, etc. containing a frame (2), preferably made of concrete, and a noise absorber (3) located on it, preferably mounted flat on the frame (2), while the noise absorber is made in the form of a removable cartridge (3) containing a noise absorption mat (13), отличающееся тем, чтоcharacterized in that - за шумопоглощающим матом (13) расположен интегрированный в кассету (3) формирователь (14) воздушного зазора для образования воздушного зазора (15) между шумопоглощающим матом (13) и каркасом (2);- behind the noise-absorbing mat (13) there is an air gap former (14) integrated in the cartridge (3) to form an air gap (15) between the noise-absorbing mat (13) and the frame (2); - при этом формирователь (14) воздушного зазора расположен для образования множества ячеек (16) или отделений между шумопоглощающим матом (13) и каркасом (2), при этом ячейки (16) или отделения образуют, по существу, замкнутые воздушные объемы;- wherein the air gap former (14) is arranged to form a plurality of cells (16) or compartments between the noise-absorbing mat (13) and the frame (2), while the cells (16) or compartments form substantially closed air volumes; - при этом шумопоглощающий мат (13) выполнен, по меньшей мере, до некоторой степени шумо- и воздухопроницаемым.- while the noise-absorbing mat (13) is made at least to some extent noise- and breathable. 2. Устройство по п.1, отличающееся тем, что шумопоглотитель (3) состоит из мата (13) из гранулированной резины.2. The device according to claim 1, characterized in that the noise absorber (3) consists of a mat (13) of granular rubber. 3. Устройство по п.2, отличающееся тем, что гранулы резины связаны в мат (13) таким образом, что в мате (13) образованы воздухопроницаемые поры или каналы.3. The device according to claim 2, characterized in that the rubber granules are bonded into the mat (13) in such a way that breathable pores or channels are formed in the mat (13). 4. Устройство по п.1, отличающееся тем, что шумопоглотитель (3) установлен на, по существу, плоской бетонной поверхности.4. The device according to claim 1, characterized in that the noise absorber (3) is mounted on a substantially flat concrete surface. 5. Устройство по любому из пп.1-4, отличающееся тем, что воздушный зазор (15) имеет ширину 10-60 мм.5. A device according to any one of claims 1 to 4, characterized in that the air gap (15) has a width of 10-60 mm. 6. Устройство по любому из пп.1-4, отличающееся тем, что воздушный зазор (15) имеет ширину предпочтительно 30 мм.6. Device according to any one of claims 1 to 4, characterized in that the air gap (15) has a width of preferably 30 mm. 7. Устройство по любому из пп.1-4, отличающееся тем, что передняя поверхность шумопоглотителя (3) расположена, по существу, на одном уровне с передней ограничительной поверхностью (7, 8) каркаса (2).7. Device according to any one of claims 1 to 4, characterized in that the front surface of the noise absorber (3) is located essentially at the same level with the front bounding surface (7, 8) of the frame (2). 8. Устройство по любому из пп.1-4, отличающееся тем, что верхняя поверхность (10) бетонного каркаса (2) расположена на уровне, который позволяет пассажирам быстро и просто эвакуироваться из поезда, совершившего незапланированную остановку на пути.8. A device according to any one of claims 1 to 4, characterized in that the upper surface (10) of the concrete frame (2) is located at a level that allows passengers to quickly and easily evacuate from a train that has made an unplanned stop on the way. 9. Устройство по любому из пп.1-4, отличающееся тем, что в бетонном каркасе (2) выполнены эвакуационные двери (24), позволяющие персоналу, присутствующему в области пути, быстро и легко эвакуироваться. 9. A device according to any one of claims 1 to 4, characterized in that evacuation doors (24) are made in the concrete frame (2), allowing personnel present in the track area to quickly and easily evacuate.
RU2011149274/03A 2009-05-04 2010-05-04 ACOUSTIC SCREENING DEVICE FOR DIMINISHING TRAFFIC NOISE OF ROAD TRAFFIC RU2011149274A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0900599-2 2009-05-04
SE0900599A SE533764C2 (en) 2009-05-04 2009-05-04 Noise barrier for attenuating interfering traffic noise
PCT/SE2010/050490 WO2010128937A1 (en) 2009-05-04 2010-05-04 Acoustic shielding device for damping of disturbing traffic noise

Publications (1)

Publication Number Publication Date
RU2011149274A true RU2011149274A (en) 2013-06-10

Family

ID=43050283

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2011149274/03A RU2011149274A (en) 2009-05-04 2010-05-04 ACOUSTIC SCREENING DEVICE FOR DIMINISHING TRAFFIC NOISE OF ROAD TRAFFIC

Country Status (13)

Country Link
US (1) US20120111664A1 (en)
EP (1) EP2427602B1 (en)
JP (1) JP2012526221A (en)
KR (1) KR20120023745A (en)
CN (1) CN102421969A (en)
AU (1) AU2010245316A1 (en)
BR (1) BRPI1009905A2 (en)
CA (1) CA2759177A1 (en)
CL (1) CL2011002740A1 (en)
NZ (1) NZ596629A (en)
RU (1) RU2011149274A (en)
SE (1) SE533764C2 (en)
WO (1) WO2010128937A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182152B (en) * 2011-04-06 2013-04-17 上海船舶运输科学研究所 Whole image sound barrier for urban quick lane and tunnel portal
EP2554744B9 (en) * 2011-08-02 2016-10-19 KASSECKER GmbH Sound protection device for railways, system comprising the sound protection device and railway
KR200467321Y1 (en) * 2011-08-08 2013-06-07 주식회사 에이브이티 Adjacent sound proof wall for railroad
DE202012102192U1 (en) 2012-06-14 2013-09-18 Hering Bau Gmbh & Co. Kg Shielding unit made of concrete
DE202012102193U1 (en) 2012-06-14 2013-09-18 Hering Bau Gmbh & Co. Kg Acoustic shielding unit with specially arranged noise attenuation
DE102012105983A1 (en) 2012-07-04 2014-01-09 Hering Bau Gmbh & Co. Kg Acoustic shielding unit and its structure
DE202012103533U1 (en) 2012-09-17 2013-12-20 Hering Bau Gmbh & Co. Kg Shielding unit made of concrete
DE202013101454U1 (en) 2013-04-05 2013-06-26 Hering Bau Gmbh & Co. Kg Acoustic shielding unit
NL2012346B1 (en) * 2014-03-03 2015-11-10 Durisol Raalte B V Noise barrier element for railways and similar rail lines.
AT14626U1 (en) * 2015-02-13 2016-02-15 Betonwerk Rieder Ges M B H Sound insulation wall element for track-like shoring
PL411806A1 (en) 2015-03-30 2016-10-10 Kamil Hajduk Module of a sound-absorbing barrier
IT201700006516A1 (en) * 2017-01-23 2018-07-23 Pregymix S R L INSULATION SYSTEM PREFABRICATED FOR THE CONSTRUCTION OF RAILWAY FENCES
CH714632B1 (en) * 2018-02-09 2021-04-30 Fasertech Ag Noise barrier.
RU201071U1 (en) * 2020-05-26 2020-11-25 Общество с ограниченной ответственностью "Информационные технологии" (ООО "ИнфоТех") NOISE PROTECTION DEVICE FOR SORTING SLIDER CAR REDUCER
DE202021101120U1 (en) 2021-03-05 2022-06-08 KRAIBURG STRAIL GmbH & Co. KG Sound insulation wall element for a track system
RU204529U1 (en) * 2021-03-19 2021-05-28 Общество С Ограниченной Ответственностью "Информационные Технологии" (Ооо "Инфртех") DEVICE FOR NOISE PROTECTION SCREENS ON SORTING SLIDES
DE202022102882U1 (en) * 2022-05-25 2022-07-26 KRAIBURG STRAIL GmbH & Co. KG Sound insulation wall element for a track system
CN115492017A (en) * 2022-09-26 2022-12-20 中铁二院工程集团有限责任公司 Method and device for setting urban rail transit evacuation near-rail sound barrier

Family Cites Families (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1660745A (en) * 1926-06-30 1928-02-28 Ada Wallace Delaney Acoustic building material
US1921518A (en) * 1930-02-19 1933-08-08 Bemis Ind Inc Insulating block
US3001602A (en) * 1960-01-25 1961-09-26 Structural Clay Products Res F Load bearing sound absorbing clay tile unit
US3211253A (en) * 1964-01-15 1965-10-12 Douglas Aircraft Co Inc Acoustical panel comprising a cellular core having a face thereof coated with fibers bridging the cells
US3656576A (en) * 1970-11-19 1972-04-18 Gunter Gubela Noise shield panels and method of fabrication
BE794506A (en) * 1972-01-26 1973-05-16 Asahi Chemical Ind SOUNDPROOFING BLOCK
DE2360519C3 (en) * 1973-12-05 1978-04-06 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Soundproof wall element
US4013302A (en) * 1975-11-14 1977-03-22 General Motors Corporation Acoustically absorbent truck tire splash guard
US4142468A (en) * 1976-04-20 1979-03-06 Charles Birnstiel Elevated rail transit guideway with noise attenuators
JPS52148917A (en) * 1976-06-03 1977-12-10 Chiyoda Chem Eng Construct Co Sound adsorbing material
US4114725A (en) * 1976-10-21 1978-09-19 American Can Company Shield and acoustical assembly
US4143495A (en) * 1976-10-22 1979-03-13 Fa. Pass & Co. Sound-absorbing panel
US4167598A (en) * 1977-05-24 1979-09-11 Logan Paul A Heat and sound insulating panel
DK142710B (en) * 1977-11-10 1980-12-29 Elektronikcentralen Sound absorbing structure.
CA1093975A (en) * 1979-07-19 1981-01-20 William G. Docherty Accoustical barrier
US4278146A (en) * 1979-09-28 1981-07-14 Armand Lerner Sound barrier
US4340129A (en) * 1980-05-01 1982-07-20 Cabot Corporation Acoustical laminate construction and attenuated systems comprising same
JPS5779608U (en) * 1980-10-31 1982-05-17
US4468423A (en) * 1982-11-17 1984-08-28 Arlie Hall Insulating cell element and structures composed thereof
DE3308018A1 (en) * 1983-02-10 1984-08-16 Hans Hergiswil Bigler Noise protection wall
DE3331670A1 (en) * 1983-08-25 1985-03-14 Günther Dipl.-Ing. 6300 Gießen Förster Guide wall with additional sound insulation for motor vehicle roads
US4566558A (en) * 1985-02-21 1986-01-28 Marine Systems, Inc. Noise barrier
US4674593A (en) * 1985-04-02 1987-06-23 Mccarty Danny W Sound barrier fence
US4815050A (en) * 1985-05-31 1989-03-21 Brunswick Corporation Complaint tube low frequency sound attenuator
US4759000A (en) * 1985-06-13 1988-07-19 Reitz Ronald P Acoustic energy absorbing material
FR2612217A1 (en) * 1987-03-13 1988-09-16 Rousset Michel Noise-reducing screens made of prefabricated elements
JPH0521119Y2 (en) * 1987-06-09 1993-05-31
CH672932A5 (en) * 1987-07-28 1990-01-15 Montana Stahl Ag Noise-attenuating wall section - contains insulating layers of different densities, with first layer held clear of front wall by distance piece
DE3827144A1 (en) * 1988-08-10 1990-02-15 Ulrich Dipl Ing Gerstner Sound-absorbing structural part
US5138588A (en) * 1988-08-19 1992-08-11 Brunswick Corporation Underwater sound attenuator
CH675738A5 (en) * 1989-11-23 1990-10-31 Brodtbeck Ag Noise barrier - consists of basic panel with thickened outer edge making recess for an absorbent layer
JPH089852B2 (en) * 1990-04-11 1996-01-31 神鋼鋼線工業株式会社 Sound absorption and sound insulation panel
NL9001615A (en) * 1990-07-16 1992-02-17 Nijmeegse Betonindustrie De Ha Sound absorbing wall - has helm-hole air body resonators and open cell concrete to absorb high and low frequencies
CH684279A5 (en) * 1991-07-05 1994-08-15 Umb Trading Ltd A noise protection element for noise barriers.
US5272284A (en) * 1991-07-10 1993-12-21 Carsonite International Corp. Sound barrier
IT1249829B (en) * 1991-08-05 1995-03-28 Insokell Spa MODULAR ELEMENT OF SOUND INSULATION AND SOUND ABSORBING PANEL FOR NOISE BARRIERS
JPH0565705A (en) * 1991-09-05 1993-03-19 Aoki Corp Sound-absorbing and sound-shielding panel
FR2683368A1 (en) * 1991-10-31 1993-05-07 Prefatech Sa Noise absorbent matting
US5438171A (en) * 1992-01-22 1995-08-01 Carsonite International Corporation Composite sound wall
JPH0596113U (en) * 1992-06-03 1993-12-27 古河電気工業株式会社 Sound absorbing sound insulation panel
FI92342C (en) * 1992-06-08 1994-10-25 Rautaruukki Oy noise Fences
WO1995009082A1 (en) * 1993-09-28 1995-04-06 Bradford Industries, Inc. Sound attenuation composite and method for forming same
NL9400173A (en) * 1994-02-04 1995-09-01 Veldhoen Raalte B V Noise barrier.
JPH07300821A (en) * 1994-05-02 1995-11-14 Bridgestone Corp Sound absorber
US5469932A (en) * 1994-06-09 1995-11-28 Mcnair; Edward P. Sound barrier with oblique surfaces
US5744763A (en) * 1994-11-01 1998-04-28 Toyoda Gosei Co., Ltd. Soundproofing insulator
IT1273978B (en) * 1995-02-28 1997-07-11 Stefano Ughi ACOUSTIC BARRIER PARTICULARLY FOR RAILWAY ARMAMENT
US6021612A (en) * 1995-09-08 2000-02-08 C&D Technologies, Inc. Sound absorptive hollow core structural panel
JPH09296534A (en) * 1996-04-30 1997-11-18 Chuo Kagaku Kk Sound absorbing composite panel
ATE207165T1 (en) * 1997-02-19 2001-11-15 Phoenix Ag SOUNDPROOF DEVICE
FR2795756B1 (en) * 1999-06-30 2002-01-18 Capremib Champagne Ardennes Pr MULTIMATERIAL COMPOSITE SOUND SCREEN
JP4621828B2 (en) * 2001-02-26 2011-01-26 株式会社熊谷組 Sound barrier
US20020117351A1 (en) * 2001-02-27 2002-08-29 Hung-Lieh Chen Sound-eliminating board
US20030006090A1 (en) * 2001-06-27 2003-01-09 Reed John Douglas Broadband noise-suppressing barrier
JP3626712B2 (en) * 2001-08-10 2005-03-09 小田急電鉄株式会社 Construction method of soundproof wall
CN2515235Y (en) * 2001-11-30 2002-10-09 天津再发隔音墙有限公司 Sound-proof wall
US20040065506A1 (en) * 2002-10-03 2004-04-08 Salls Darwin Aldis GaVoe noise abatement block
DE10311245A1 (en) * 2003-03-14 2004-09-30 Greiner Perfoam Ges.m.b.H. Acoustic part made of composite foam
SE524870C2 (en) * 2003-10-06 2004-10-19 Bloc Internat Ab Z Noise barrier for roads or railways, comprises noise absorbing part made from rubber and noise reflecting frame
US7604095B2 (en) * 2006-06-01 2009-10-20 General Electric Company Thermal-acoustic enclosure
JP5326472B2 (en) * 2007-10-11 2013-10-30 ヤマハ株式会社 Sound absorption structure
US20100243369A1 (en) * 2009-03-31 2010-09-30 Nuform Building Technologies Inc. Highway noise barrier

Also Published As

Publication number Publication date
SE533764C2 (en) 2010-12-28
JP2012526221A (en) 2012-10-25
CA2759177A1 (en) 2010-11-11
WO2010128937A1 (en) 2010-11-11
SE0900599A1 (en) 2010-11-05
AU2010245316A1 (en) 2011-12-22
BRPI1009905A2 (en) 2016-03-15
CN102421969A (en) 2012-04-18
CL2011002740A1 (en) 2012-06-22
EP2427602A4 (en) 2015-04-08
NZ596629A (en) 2014-01-31
EP2427602A1 (en) 2012-03-14
EP2427602B1 (en) 2016-07-27
KR20120023745A (en) 2012-03-13
US20120111664A1 (en) 2012-05-10

Similar Documents

Publication Publication Date Title
RU2011149274A (en) ACOUSTIC SCREENING DEVICE FOR DIMINISHING TRAFFIC NOISE OF ROAD TRAFFIC
RU2490152C2 (en) Energiser of airflow under railway car frame
CN105803965B (en) A kind of broadband sound absorption cell board
WO2006114332A3 (en) Material for absorbing noise in aircraft
KR101360398B1 (en) Soundproof wall for preventing leakage and diffracting of sound
CN201496128U (en) Wedge staggered silencer
JP4674364B2 (en) Air pollutant-removing soundproof wall with airflow layer behind
ATE438521T1 (en) SOUND ABSORBER ELEMENT AND SOUND ABSORBER FOR A RAIL VEHICLE WHEEL AND WHEEL EQUIPPED THEREFROM
CN203049667U (en) Vibration-reducing and noise-reducing cab of engineering machine
KR20150067966A (en) environmentally sound absorption sound insulation board
CN103072589A (en) Micro-perforated plate cavity resonance sound absorption device for high-speed train baggage rack
CN103072588B (en) For the micropunch transparent panel sound absorber of high speed train glass partition and door
CN202358111U (en) Micro-perforated transparent plate noise absorption device for glazed partition and door at joint of carriages of high-speed train
JP2004132062A (en) Sound insulation wall for railways
CN210002290U (en) noise reduction isolation belt for municipal road
CN204875576U (en) Protective screen is handled to wedge noise
Zhang et al. Experimental study of noise mitigation measures on a slab track
CN102912759B (en) Shunting interference muffling air exhaust and noise reduction device and railway track bed blowing and sucking sweeping work device
CN106050750A (en) High-air-volume piece-type impedance composite silencer
CN205874857U (en) High -efficient underground railway track abatvoix
KR20100103244A (en) Soundproof structure for noise reduction
CN204455883U (en) Abate the noise device
CN205636540U (en) High -efficient non - metallic sound protective screen acoustic baffle
US20180171563A1 (en) Transparent sound-absorbing noise protection element
CN202358117U (en) Micro-perforated plate cavity resonance sound absorption device for high-speed train baggage rack