CN102182152A - Whole image sound barrier for urban quick lane and tunnel portal - Google Patents
Whole image sound barrier for urban quick lane and tunnel portal Download PDFInfo
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- CN102182152A CN102182152A CN 201110085181 CN201110085181A CN102182152A CN 102182152 A CN102182152 A CN 102182152A CN 201110085181 CN201110085181 CN 201110085181 CN 201110085181 A CN201110085181 A CN 201110085181A CN 102182152 A CN102182152 A CN 102182152A
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Abstract
The invention relates to a whole image sound barrier for an urban quick lane and a tunnel portal. The sound barrier is characterized by consisting of gate-type arc steel arch racks arranged in the upper space of a pavement, and a sound barrier main body framework consisting of rigid tie rods for connecting the adjacent arch racks and cross supporting rods, wherein purlines are arranged on the main body framework; and meanwhile, the purlines arranged on the main body framework are used as supports, anti-collision wall contact faces are formed symmetrically on the left and right sides along the central axis of the sound barrier till the pavement, and a sound absorber, a ventilated exhaust part, a sound absorber, a lighting part, a sound absorber and a lighting part are arranged at intervals, so that a full-closed for semi-closed whole image sound barrier structure capable of totally isolating direct sound is formed for a road. The whole image sound barrier for the urban main road can effectively reduce the traffic noise of the urban main road, effectively reduce the reverberation in a sound barrier area and ensure the safety and the comfort degree of a road user, and is a sound barrier suitable for a building dense area nearby the urban main road.
Description
Technical field
The present invention relates to a kind of sound barrier, refer in particular to a kind of umbra type sound barrier that is used for city express lane and tunnel face; Belong to the urban road noise and eliminate the reduction technical field.
Background technology
In recent years, along with the development of road traffic and urban construction, the through street that the magnitude of traffic flow is big and travel speed is high is extensively built in the city and is come into operation, and the thing followed is that the traffic noise problem that disturbs residents is also serious day by day.For the overwhelming majority's old town, roading can't be changed, and the residential district building also is shaped already.Indivedual metropolis are because historical reasons, situation is more abominable, the office building of a lot of esidential building buildings, hospital, school and scientific research institution is close to urban traffic major trunk roads, viaduct, light rail, and this irrational layout of buildings causes the complaint amount surge of resident for road traffic noise.
For this situation, adopting mosaic type, disconnectable sound barrier is the higher scheme of a kind of cost performance.By the baffle vertical with the road surface is set in the road both sides, in order to stopping the community radiation of vehicle noise, but because the three-dimensional circulation way of sound wave, causes a part of noise to cross sound barrier top diffraction and go out arrival and be subjected to point to the road both sides; Part noise penetrates sound barrier arrival and is subjected to point; Some noise is subjected to point by the repeatedly reflection arrival of the parallel sound barrier wall in both sides, particularly the highrise building of road both sides forms " valley effect " in the metropolis, also play the effect of reflecting background indirectly, and sound barrier can not be designed to infinite height and endless, therefore nearer for the distance road, floor is higher is subjected to point, common open type sound barrier can only make the part floor of high-lager building be in the sound shadow region, can't whole reach the effect of remarkable reduction traffic noise, so the noise reduction of sound barrier is often unsatisfactory.
Therefore, this is a kind of as a kind of effective and economic method that reduces traffic noise how to make good use of sound barrier, makes the techno-economic effect of its performance maximum, has great importance for the living environment quality that improves the resident.
Summary of the invention
Purpose of the present invention: be intended to propose a kind of umbra type sound barrier that can effectively administer major urban arterial highway and tunnel Access Road Traffic noise, solve the ubiquitous traffic noise of urban highway traffic and administer difficult predicament.
This umbra type sound barrier that is used for city express lane and tunnel face, it is characterized in that: it is by the gate-type arc steel bow member that is arranged on the road surface upper space and connect the rigid tie bar of adjacent each bow member and the sound barrier main body framework that the cross support bar forms, and disposes purlin on the main body framework; Simultaneously, be support to be arranged on purlin on the main body framework, along place, the sound barrier axis symmetry crashproof wall contact surface that on the road surface, is provided with of both sides to the left and right, the interval is provided with sound absorber, ventilation smoke exhaust portion, sound absorber, daylighting portion, sound absorber and daylighting portion, constitutes thus road is formed the totally-enclosed or semiclosed umbra type noise barrier structure that can exclude direct sound fully.
The area of described ventilation smoke exhaust portion is not less than 5% of path area; Described ventilation smoke exhaust portion is provided with baffle plate, and described baffle plate is located at the right and left of ventilation smoke exhaust portion opening, is connected with main purlin by securing member.
The area of described daylighting portion is not less than 10% of path area; Described daylighting portion is made up of the main purlin and the subpurlin of plane skylight and fixing lighting plate, and fixedlys connected with sound barrier main body framework or crashproof wall by main purlin.
Described sound absorber is made of aluminium sheet, PLASTIC LAMINATED and sound absorption material, and sound absorption material adopts the light vegetable fiber sprayed on material.Described aluminium sheet and sound-absorbing material layer are separately positioned on the upper and lower side of main purlin and cooperate the formation double-decker through subpurlin and angle sign indicating number spare, aluminium sheet connector, securing member; Described sound-absorbing material layer sticks on the PLASTIC LAMINATED, PLASTIC LAMINATED is fixed through the secondary purlin that securing member is connected with main purlin, and the characteristics that existence is vibrated at road environment, arrange evenly that in sound-absorbing material layer anchoring piece is to play the anchorage effect of sound-absorbing material layer in vibration environment; The thickness of sprayed on material is 25mm.
The center of described sound barrier main body framework can be provided with the sound-proof wall that road surface under the barrier is separated into left and right two halves as required.
Described gate-type arc steel bow member bottom links into an integrated entity by pre-embedded bolt with the whole crashproof wall that is provided with.
At the sound barrier light collecting body of tunnel exit and ground level road joining place, adopt the good material of transparency as light collecting body.
This umbra type sound barrier that is used for city express lane and tunnel face that is applicable to major urban arterial highway according to above technical scheme proposition, can not only effectively reduce the traffic noise of major urban arterial highway, and can effectively reduce reverberation in the sound barrier zone, guaranteeing the safety and the comfort level of road user, is a kind of sound barrier that is applicable near the building dense zone of major urban arterial highway.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a plan view of the present invention;
Fig. 3 is a stereogram of the present invention;
Fig. 4 is rigid tie bar and cross support arrangement diagram;
Fig. 5 is the baffle arrangement schematic diagram;
Fig. 6 is a string sound absorber mounting structure schematic diagram;
Fig. 7 is a daylighting portion mounting structure schematic diagram;
Fig. 8 is a sound barrier design principle schematic diagram.
Among the figure: 1-sound barrier 2-transmission path 3-sound shadow region 4-is subjected to sound point 5-diffraction path
6-refraction path 7-direct projection path 8-sound source 9-sound is according to the district 10-steel arch frame 11.1-master purlin 11.2-subpurlin 12-sound absorber 13-daylighting 13.1-of section plane skylight 14-aeration portion 15-sound-proof wall 16-track clearance 17-road medium line 18-ground 19-anti-collision wall 20-purlin holder 21-aluminium alloy indent 22-aluminium sheet 24-corner brace 25-fluid sealant 26-PLASTIC LAMINATED 27-sound-absorbing material layer 28-aluminium sheet connector 29-baffle plate 30-anchoring piece 31-securing member 32-rigid tie bar 33-cross support bar A1, A2-A-road.
The specific embodiment
Further set forth the present invention below in conjunction with accompanying drawing, and provide embodiments of the invention.
As shown in Figure 8, the sound that sends of our sound generation source 8 zone that can directly arrive is called sound according to the district usually, and the zone that can not directly arrive sound becomes sound shadow region 3.The effect of sound barrier 1 is exactly to stop through sonic propagation, isolates transmission sound, and makes diffraction sound that enough decay be arranged.At major urban arterial highway road fabric width, be subjected to that sound point 4 is near apart from road, building is up to, characteristics that noise figure is high, realize the target of remarkable noise reduction, key is the sound shadow region 3 that enlarges sound barrier, stop direct sound fully, and sound barrier 1 should have certain sound absorption face, isolates transmission sound, and by reasonably design, effectively weaken the diffraction that sound barrier end and top open part form, reach the purpose of controlling noise.
Simultaneously, the road noise barrier design is a kind of engineering technology problem of multiple target multiple constraint, they all must satisfy the needs of local view in the selection of aspects such as layout, form, material, structure, structure and decorative appearance, also will guarantee economy, practicality and durability simultaneously.
This umbra type sound barrier that is used for city express lane and tunnel face as shown in Figure 1, it is characterized in that: it is by the gate-type arc steel bow member 10 that is arranged on the road surface upper space and connect the rigid tie bar (among Fig. 4 32) of adjacent each bow member and sound barrier main body framework that cross support bar (among Fig. 4 33 in) forms, and on the main body framework configuration purlin 11; Simultaneously, be support to be arranged on purlin 11 on the main body framework, 17 place's symmetries crashproof wall contact surface of on the road surface, being provided with of both sides to the left and right along the sound barrier axis, the interval is provided with sound absorber 12, ventilation smoke exhaust portion 14, sound absorber 12, daylighting portion 13, sound absorber 12 and daylighting portion 13, constitutes thus road is formed totally-enclosed or semiclosed, as to exclude direct sound fully umbra type noise barrier structure.
Described sound absorber 12, ventilation smoke exhaust portion 14, sound absorber 12, daylighting portion 13, sound absorber 12 and daylighting portion 13, present distributing at the ribbon of umbra type sound barrier axial direction as shown in Figure 3, the area of described ventilation smoke exhaust portion 14 wherein is not less than 5% of path area; The daylighting gross area of described daylighting portion 13 is not less than 10% of path area.Daylighting area is determined according to the light transmittance of plane skylight material in the practice, and described daylighting portion is made up of plane skylight 13.1 and fixing lighting plate master purlin 11.1 and subpurlin 11.2, and fixedlys connected with sound barrier main body framework 10 or crashproof wall 9 by main purlin.
Described ventilation smoke exhaust portion is provided with baffle plate 29, and described baffle plate 29 is located at the right and left of ventilation smoke exhaust portion opening, is connected with main purlin 11.1 by securing member.By exceeding the baffle plate 29 of ventilation smoke exhaust portion top and bottom, can effectively reduce the noise intensity of internal noise by the outside diffraction of ventilation smoke exhaust mouth, and can be used as water baffle and prevent that rainwater from through letting out the formation curtain of rain under the smoke evacuation band opening part, having influence on vehicle driving safety.
Described sound absorber is made of aluminium sheet 22, PLASTIC LAMINATED 26 and sound-absorbing material layer 27, and described aluminium sheet 22 and sound-absorbing material layer 27 are separately positioned on the upper and lower side of main purlin 11.1 and cooperate the formation double-decker through subpurlin 11.2 and angle sign indicating number spare 24, aluminium sheet connector 28, securing member 31; Described sound-absorbing material layer 27 sticks on the PLASTIC LAMINATED 26, PLASTIC LAMINATED is on securing member 31 and subpurlin 11.2 that main purlin 11.1 is connected, and the characteristics that existence is vibrated at road environment, arrange evenly that in sound-absorbing material layer anchoring piece 28 is to play the anchorage effect of sound-absorbing material layer in vibration environment.
Described sound absorber material layer 27 adopts the light vegetable fiber sprayed on material, and the average noise reduction coefficient of string sprayed on material that 25mm is thick is not less than 0.75.
Described sound barrier bottom vertical section partly adopts the higher plane skylight of transparency at tunnel exit near the daylighting at place, ground, increased driver's the visual field, guaranteed the traffic safety of tunnel face, owing to adopt natural lighting, generally need not to use electric lighting daytime, reduced the consumption of vehicular energy.
Described gate-type arc steel bow member bottom links into an integrated entity by pre-embedded bolt with the whole crashproof wall that is provided with.
The design principle of the described sound barrier of invention that proposes according to above technical scheme is as follows:
According to barrier acoustics design principle, for major urban arterial highway road fabric width, sensitive spot is near apart from road, building is tall and big, noise figure is high characteristics, realize the target of remarkable noise reduction, key is the sound shadow region that enlarges barrier, exclude direct sound fully, and barrier should have certain sound absorption face, can effectively weaken the intensity in the noise face source of barrier end and top open part formation, and can effectively reduce reverberation sound.
The first, will build up above-mentioned sound barrier (sound insulation canopy), must exclude direct sound fully, sound barrier is totally-enclosed or semiclosed near forming to road, and open top position and size will be determined by calculating, when being necessary sound-proof wall can be set.
The second, this kind sound barrier (sound insulation canopy) is as being used for the access, tunnel, and its building area is greater than 300m
2The time, consider the fire-fighting smoke evacuation and the needs that ventilate, the open top area should be greater than 5% of floor area, and to reach the requirement of natural draught system and ventilation, the smoke evacuation band also can play the evenly effect of discharging of waste gas that makes simultaneously.
Three, this kind sound barrier from view, drive aspects such as comfort level and daylighting and consider that the transparent body of certain area should be arranged, the area of the transparent body and the position is set will requires design according to natural lighting and traffic safety.This kind sound barrier (sound insulation canopy) is when being used for the access, tunnel, and requirement that can the integrating tunnel light transition section designs together, can have the interception of light transition section concurrently.Transparent material should be selected the material of lightweight, landscape effect and good weatherability for use.
Four, consider that in second ventilation smoke exhaust is provided with smoke evacuation band, can make noise pass through the smoke evacuation band after the smoke evacuation band being set to external radiation.This kind sound barrier solves consequent problem by baffle arrangement is set, and also solves the top rainwater simultaneously and comes down in torrents in the tunnel.
Five, this kind sound barrier, the sound absorption and insulation body is made of aluminium sheet, PLASTIC LAMINATED and sound absorption material, and sound absorption material is selected the light vegetable fiber sprayed on material for use.This kind sprays formula fiber sound absorption material to be made up of organic fiber and aqua type adhesive, after mixing and stirring, spray by the pneumatics pump, and sound absorbing capabilities excellence not only, and also have goodish heat-insulation and heat-preservation effect and the base material that is sprayed is shielded.Simple structure, convenient and quick construction is a kind of broad-spectrum environment-friendly type sound absorption material, is specially adapted to wait, the sound absorption reduction of waiting hall, conference and exhibition center, stadiums, the Acoustic treatment of performing in a radio or TV programme the place and access, tunnel, subway railway platform.This is that this kind material is used for road sound insulation canopy first.
Six, need at road access face place, tunnel in the sound barrier design, consider that the traffic sighting distance needs, the higher daylighting part of transparency is set to increase driver's the visual field.
Seven, the structure design of sound barrier meets the traffic safety requirement, and the structure design on bow member basis is considered crashproof, can not form to topple or integral body collapses, and satisfy boundary line of road construction, and outer surface material adopts inferior light to handle, and surrounding resident is not produced light pollution.
The practical application that exports to the west and enter the mouth and pass through the resident compact district through new road construction tunnel and Pu, tunnel, Da Pu road in Shanghai, adopt the sound barrier sound insulation and noise reducing of sound insulation canopy pattern at home first, this barrier comprehensive technical performance also is able to abundant check, the barrier noise reduction reaches more than the 15dB, has obtained good noise reduction and social benefit.
The actual use shows that 1. technique scheme has increased the sound shadow region of barrier greatly, excludes direct sound fully, is specially adapted to the major urban arterial highway of road road fabric width, and the situation that sensitive spot is near apart from road, building is tall and big, noise figure is high; 2. adopt natural lighting and ventilation smoke exhaust; 3. adopt novel string sprayed-on acoustical material; 4. the design of sound barrier (sound insulation canopy) meets the traffic safety requirement, and basic constructional design is considered crashproof, can not form integral body and collapse.
Claims (10)
1. umbra type sound barrier that is used for city express lane and tunnel face, it is characterized in that: it is by the gate-type arc steel bow member that is arranged on the road surface upper space and connect the rigid tie bar of adjacent each steel bow member and the sound barrier main body framework that the cross support bar forms, and disposes purlin on the main body framework; Simultaneously, be support to be arranged on purlin on the main body framework, along place, the sound barrier axis symmetry crashproof wall contact surface that on the road surface, is provided with of both sides to the left and right, the interval is provided with sound absorber, ventilation smoke exhaust portion, sound absorber, daylighting portion, sound absorber and daylighting portion, constitutes thus road is formed the totally-enclosed or semiclosed umbra type noise barrier structure that can exclude direct sound fully.
2. a kind of umbra type sound barrier that is used for city express lane and tunnel face as claimed in claim 1 is characterized in that: the area of described ventilation smoke exhaust portion is not less than 5% of path area.
3. a kind of umbra type sound barrier that is used for city express lane and tunnel face as claimed in claim 1 is characterized in that: the area of described daylighting portion is not less than 10% of path area; Described daylighting portion is made up of plane skylight (13.1) and fixing lighting plate master purlin (11.1) and subpurlin (11.2), and fixedlys connected with sound barrier main body framework (10) or crashproof wall 9 by main purlin.
4. a kind of umbra type sound barrier that is used for city express lane and tunnel face as claimed in claim 2 is characterized in that: described ventilation smoke exhaust portion is provided with baffle plate (29); Described baffle plate (29) is located at the right and left of ventilation smoke exhaust portion opening, is connected with main purlin (11.1) by securing member.
5. a kind of umbra type sound barrier that is used for city express lane and tunnel face as claimed in claim 2, it is characterized in that: described daylighting portion is made up of plane skylight (13.1) and fixing lighting plate master purlin (11.1) and subpurlin (11.2), and fixedlys connected with sound barrier main body framework (10) or crashproof wall (9) by main purlin.
6. a kind of umbra type sound barrier that is used for city express lane and tunnel face as claimed in claim 1, it is characterized in that: described sound absorber is made of aluminium sheet (22), PLASTIC LAMINATED (26) and sound-absorbing material layer (27), and described aluminium sheet (22) and sound-absorbing material layer (27) are separately positioned on the upper and lower side of main purlin (11.1) and cooperate the formation double-decker through subpurlin (11.2) and angle sign indicating number spare (24), aluminium sheet connector (28), securing member 31; Described sound-absorbing material layer (27) sticks on the PLASTIC LAMINATED (26), PLASTIC LAMINATED is on securing member (31) and subpurlin (11.2) that main purlin (11.1) is connected, and the characteristics that existence is vibrated at road environment, arrange evenly that in sound-absorbing material layer anchoring piece (28) is to play the anchorage effect of sound-absorbing material layer in vibration environment.
7. a kind of umbra type sound barrier as claimed in claim 6 is characterized in that: described sound-absorbing material layer (27) adopts the light vegetable fiber sprayed on material, is that the thick string sprayed on material of 25mm constitutes by thickness; Its average noise reduction coefficient is not less than 0.75.
8. a kind of umbra type sound barrier that is used for city express lane and tunnel face as claimed in claim 1, it is characterized in that: the center of described sound barrier main body framework is provided with the sound-proof wall that road surface under the barrier is separated into left and right two halves.
9. a kind of umbra type sound barrier that is used for city express lane and tunnel face as claimed in claim 1 is characterized in that: described gate-type arc steel bow member bottom links into an integrated entity by pre-embedded bolt with the whole crashproof wall that is provided with.
10. a kind of umbra type sound barrier that is used for city express lane and tunnel face as claimed in claim 1 is characterized in that: at the sound barrier light collecting body of tunnel exit and ground level road joining place, adopt the good material of transparency as light collecting body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110085181 CN102182152B (en) | 2011-04-06 | 2011-04-06 | Whole image sound barrier for urban quick lane and tunnel portal |
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| CN 201110085181 CN102182152B (en) | 2011-04-06 | 2011-04-06 | Whole image sound barrier for urban quick lane and tunnel portal |
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| CN102182152A true CN102182152A (en) | 2011-09-14 |
| CN102182152B CN102182152B (en) | 2013-04-17 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046490A (en) * | 2012-12-28 | 2013-04-17 | 森特士兴集团股份有限公司 | Totally closed sound barrier |
| CN104141500A (en) * | 2014-04-11 | 2014-11-12 | 中国水利水电第十一工程局有限公司 | Hardened sand gravel stratum cavern construction method |
| 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 |
| CN106906760A (en) * | 2017-04-28 | 2017-06-30 | 森特士兴集团股份有限公司 | A kind of environmental totally-enclosed sound barrier |
| CN107034800A (en) * | 2017-06-09 | 2017-08-11 | 山西军昊实业有限公司 | Closed tunnel structure sound barrier |
| CN110468753A (en) * | 2019-09-12 | 2019-11-19 | 广州地铁设计研究院股份有限公司 | Rail traffic hole changeover portion means of defence and combinative prevention type sound barrier |
| CN110512539A (en) * | 2019-08-28 | 2019-11-29 | 深圳市双禹王声屏障工程技术有限公司 | A kind of all-wing aircraft Shape closed formula gobo |
| CN110512538A (en) * | 2019-08-28 | 2019-11-29 | 深圳市双禹王声屏障工程技术有限公司 | A kind of arch totally enclosed type noise barrier |
| CN110671124A (en) * | 2019-09-30 | 2020-01-10 | 成都市市政工程设计研究院 | Acousto-optic gradual change structure of tunnel portal |
| CN111945594A (en) * | 2020-08-27 | 2020-11-17 | 中铁上海工程局集团建筑工程有限公司 | Mounting node for decorative aluminum plate at entrance and exit of totally-enclosed sound barrier of high-speed railway |
| CN112709162A (en) * | 2020-12-30 | 2021-04-27 | 中铁六局集团北京铁路建设有限公司 | Large-span thin-wall concrete sound barrier pouring trolley |
| CN112726442A (en) * | 2020-12-30 | 2021-04-30 | 中铁六局集团北京铁路建设有限公司 | Construction method of large-span thin-wall concrete sound barrier pouring trolley |
| CN112726444A (en) * | 2020-12-30 | 2021-04-30 | 中铁六局集团北京铁路建设有限公司 | Closed sound barrier foundation optimization structure and treatment process thereof |
| CN112878217A (en) * | 2020-11-27 | 2021-06-01 | 代文兵 | Closed type track sound insulation barrier |
| CN113062239A (en) * | 2021-03-29 | 2021-07-02 | 生态环境部华南环境科学研究所 | Totally closed sound barrier structure of upper cover view park formula suitable for highway |
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| CN103046490A (en) * | 2012-12-28 | 2013-04-17 | 森特士兴集团股份有限公司 | Totally closed sound barrier |
| CN103046490B (en) * | 2012-12-28 | 2015-06-17 | 森特士兴集团股份有限公司 | Totally closed sound barrier |
| CN104141500A (en) * | 2014-04-11 | 2014-11-12 | 中国水利水电第十一工程局有限公司 | Hardened sand gravel stratum cavern construction method |
| 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 |
| CN106906760A (en) * | 2017-04-28 | 2017-06-30 | 森特士兴集团股份有限公司 | A kind of environmental totally-enclosed sound barrier |
| CN107034800A (en) * | 2017-06-09 | 2017-08-11 | 山西军昊实业有限公司 | Closed tunnel structure sound barrier |
| CN110512539B (en) * | 2019-08-28 | 2021-05-28 | 深圳市双禹王声屏障工程技术有限公司 | Closed sound insulation screen of all-wing aircraft shape |
| CN110512538B (en) * | 2019-08-28 | 2021-05-28 | 深圳市双禹王声屏障工程技术有限公司 | Arch totally enclosed sound insulation protective screen |
| CN110512538A (en) * | 2019-08-28 | 2019-11-29 | 深圳市双禹王声屏障工程技术有限公司 | A kind of arch totally enclosed type noise barrier |
| CN110512539A (en) * | 2019-08-28 | 2019-11-29 | 深圳市双禹王声屏障工程技术有限公司 | A kind of all-wing aircraft Shape closed formula gobo |
| CN110468753A (en) * | 2019-09-12 | 2019-11-19 | 广州地铁设计研究院股份有限公司 | Rail traffic hole changeover portion means of defence and combinative prevention type sound barrier |
| CN110671124A (en) * | 2019-09-30 | 2020-01-10 | 成都市市政工程设计研究院 | Acousto-optic gradual change structure of tunnel portal |
| CN111945594A (en) * | 2020-08-27 | 2020-11-17 | 中铁上海工程局集团建筑工程有限公司 | Mounting node for decorative aluminum plate at entrance and exit of totally-enclosed sound barrier of high-speed railway |
| CN112878217A (en) * | 2020-11-27 | 2021-06-01 | 代文兵 | Closed type track sound insulation barrier |
| CN112878217B (en) * | 2020-11-27 | 2022-04-26 | 山西军昊实业有限公司 | Closed type track sound insulation barrier |
| CN112726444A (en) * | 2020-12-30 | 2021-04-30 | 中铁六局集团北京铁路建设有限公司 | Closed sound barrier foundation optimization structure and treatment process thereof |
| CN112726442A (en) * | 2020-12-30 | 2021-04-30 | 中铁六局集团北京铁路建设有限公司 | Construction method of large-span thin-wall concrete sound barrier pouring trolley |
| CN112709162A (en) * | 2020-12-30 | 2021-04-27 | 中铁六局集团北京铁路建设有限公司 | Large-span thin-wall concrete sound barrier pouring trolley |
| CN113062239A (en) * | 2021-03-29 | 2021-07-02 | 生态环境部华南环境科学研究所 | Totally closed sound barrier structure of upper cover view park formula suitable for highway |
| CN113062239B (en) * | 2021-03-29 | 2021-12-07 | 生态环境部华南环境科学研究所 | Totally closed sound barrier structure of upper cover view park formula suitable for highway |
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