CN103452015B - Track acoustic board structure - Google Patents
Track acoustic board structure Download PDFInfo
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- CN103452015B CN103452015B CN201310423446.0A CN201310423446A CN103452015B CN 103452015 B CN103452015 B CN 103452015B CN 201310423446 A CN201310423446 A CN 201310423446A CN 103452015 B CN103452015 B CN 103452015B
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Abstract
A track acoustic board structure comprises a central block board body located between the tracks on two sides and lateral block board bodies disposed on two sides of the tracks. The central block board body and the lateral block board bodies made of porous inorganic materials are of honeycomb structures. Sleeper recesses matched with a sleeper is formed at the left and the right end of the central block board body. A longitudinal draining groove is formed in the middle of the lower surface of the central block board body, bearing table recesses are formed on two sides of the middle of the lower surface of the central block board body, and a transverse connecting rod groove is further formed in the lower surface of the central block board body. A plurality of wedges with the tips being cut off are transversely disposed on the upper surfaces of the central block board body and the lateral block board bodies and disposed at intervals. The acoustic board structure can be paved on the surface of a track bed conveniently and quickly, noise reduction is achieved by utilizing the porous inorganic materials to absorb sound wave energy, influence of wheel-track noise to passengers can be reduced effectively, the wheel-track noise is absorbed from the nearest position to the noise source, noise dispersion is avoided, and the noise is reduced effectively.
Description
Technical field
The present invention relates to the technical field of track traffic vibration and noise reducing, particularly relate to a kind of ballast bed of track surface that is laid on to reduce the track acoustic board structure of driving noise.
Background technology
Along with the expansion of human lives, in the modern city of countries in the world, urban traffic track inevitably passes through under dense population areas and important building, and the vibration & noise produced during train driving has had a strong impact on people and worked normally and live.Therefore manage the vibration & noise reducing city rail, the good ground that improves is coordinated with nature and living environment, has become people's question of common concern.Find that wheel-rail noise is the main sound source of metro noise at present by test, rail vibration is again cause wheel-rail noise main aspect.Existing track soundproof measures mainly builds audio frequency barrier on track both sides, because it is away from sound source, and poor effect, and affect attractive in appearance.Therefore need to develop a kind of noise reduction product be specifically designed near wheel track, and the product of this reduction of current domestic shortage noise is for you to choose.
For this reason, designer of the present invention in view of the foregoing, by concentrating on studies and designing, the experience of comprehensive long campaigns related industry and achievement, research and design goes out a kind of track acoustic board structure, to solve the problem.
Summary of the invention
The technical problem to be solved in the present invention is: the noise problem produced during train operation in urban track traffic, the track acoustic board structure of ballast bed of track surface for reducing rail travelling crane noise is laid on to provide a kind of, be not subject to the restriction of time and construction program, both can use on newly-built circuit, also can adopt when Existing railway promotion.
For achieving the above object, the invention discloses a kind of track acoustic board structure, comprise the central block plate body between two siding tracks and the limit block plate body being positioned at track both sides, it is characterized in that:
Described central block plate body and limit block plate body are the cellular structure plate body that porous inorganic material is made;
The two ends, left and right of described central block plate body are provided with the sleeper recess matched with sleeper, and be provided with longitudinal gutter groove in the middle part of soffit, both sides, middle part are respectively equipped with plummer recess, and soffit is provided with horizontal link groove;
Most advanced and sophisticated wedge is clipped, the spaced arrangement of described many wedges at the upper surface horizontally set many of central block plate body and limit block plate body.
Wherein, the inside middle portion of described limit block plate body is provided with plummer recess.
Wherein, the two ends of described limit block plate body are provided with the concavo-convex joint construction realizing plate body and be connected with plate body, and this concavo-convex joint construction is made up of the projection of the recess and the other end that are located at one end.
Wherein, the soffit of described limit block plate body is provided with at least one cavity extended perpendicular to line direction.
Wherein, described cavity is indent arc-shaped cavity.
Wherein, by angle bar, described central block plate body and limit block plate are placed in ballast bed of track both sides, fix with holdfast.
Wherein, the railway roadbed of track is pasted with rubber strip, described central block plate body and limit block plate body are placed in rubber adhesive tape.
By said structure, present invention achieves following technique effect:
1, adopt porous inorganic material to carry out noise reduction to the principle that acoustic wave energy absorbs, carry out noise reduction than adopting the principle of sound insulation and effectively can reduce the impact of noise on nearby residents and passenger.
2, in structure design, clip most advanced and sophisticated wedge by the upper surface horizontally set convex-concave of plate body, apply transition principle gradually, improve the effect of high frequency sound absorption and reduction air pressure wave, be conducive to alleviating acoustic pressure, reduce compression wave to the impact of vehicle/tunnel wall.
3, the bottom of plate body arranges the cavity perpendicular to line direction, sound wave enters cavity at the bottom of plate by abatvoix surface and resonates with air wherein, the kinetic transformation of acoustical vibration is that heat energy makes sound energy attenuation, thus improves the effect of sound absorption and reduction air pressure wave.
4, the two ends, left and right, bottom of plate body are provided with the recess matched with sleeper, make the nearer of abatvoix and noise source distance, thus add the acoustically effective of abatvoix.
5, adopt orbital plane paving, short range noise-reducing, can with Lightweight acoustical parapet, is combined with anticreep parapet, absorb sound alleviate impact force simultaneously.
6, this abatvoix is laid on ballast bed of track surface, easy for installation, porous inorganic material is utilized to carry out noise reduction to the principle that acoustic wave energy absorbs, effectively can reduce the impact of wheel-rail noise on passenger, the most namely starting to absorb wheel-rail noise from noise source simultaneously, avoid the diffusion of noise, effectively reduce noise.
Detailed content of the present invention obtains by explanation below and accompanying drawing.
Accompanying drawing explanation
Fig. 1: the scheme of installation of track acoustic board structure of the present invention.
The A-A view of Fig. 2: Fig. 1.
Fig. 3: the top view of central block of the present invention.
Fig. 4: the elevation of central block of the present invention.
Fig. 5: the left view of central block of the present invention.
Fig. 6: the top view of limit of the present invention block.
Fig. 7: the elevation of limit of the present invention block.
Fig. 8: the left view of limit of the present invention block.
Detailed description of the invention
See Fig. 1-2, show the concrete schematic diagram that track acoustic board structure of the present invention is installed on track.
Described track acoustic board structure comprises the central block plate body 11 between two siding tracks and is positioned at the limit block plate body 12 of track both sides.
See Fig. 3-5, show central block plate body 11 of the present invention, described central block plate body 11 is cellular structure plate body, the sleeper recess 3 matched with sleeper is provided with at the two ends, left and right of central block plate body 11, longitudinal gutter groove 7 is provided with in the middle part of the soffit of central block plate body 11, described gutter groove 7 is corresponding with position, gutter, the both sides, middle part of described central block plate body 11 are respectively equipped with plummer recess 5, four bights are provided with recess, the recess in described plummer recess 5 and four bights is corresponding with the plummer 13 of track, the soffit of described central block plate body 11 is provided with horizontal link groove 4, described link groove 4 is corresponding with the connecting rod of track.
Wherein, most advanced and sophisticated wedge 6 is clipped at the upper surface horizontally set many of central block plate body 11, described wedge 6 undulate, the spaced arrangement of described many wedges 6.
See Fig. 6-8, show limit of the present invention block plate body 12, described limit block plate body 12 is cellular structure plate body, and the inside middle portion of described limit block plate body 12 is provided with plummer recess 5, be provided with recess inside two ends, the recess at described plummer recess 5 and two ends is corresponding with the plummer 13 of track.
Front and back for ease of limit block plate body 12 overlap, the concavo-convex joint construction realizing plate body and be connected with plate body is provided with at the two ends of limit block plate body 12, this concavo-convex joint construction is made up of the projection 9 of the recess 8 and the other end that are located at one end in the present embodiment, during use, the protrusion of neighbouring plate is engaged mutually with recess, then polylith limit block plate body 12 can before and after concavo-convex interlocking, form the entirety that one is laid on track bed 14 surface.
Wherein, most advanced and sophisticated wedge 6 is clipped at the same horizontally set of upper surface many of limit block plate body 12, described wedge 6 undulate, the spaced arrangement of described many wedges 6.
Wherein, the soffit of described limit block plate body 12 is provided with at least one cavity 10 extended perpendicular to line direction, be preferably two, sound wave so just can be made to enter cavity at the bottom of plate by abatvoix surface resonate with air wherein, the kinetic transformation of acoustical vibration is that heat energy makes sound energy attenuation, thus improves the effect of sound absorption and reduction air pressure wave.
Preferably, described cavity 10 is indent arc-shaped cavity, through repetition test, the kinetic transformation that indent arc-shaped cavity can improve acoustical vibration is further the effect of heat energy, thus improve the technique effect making sound energy attenuation and reduce air pressure wave, in test, the assimilation effect of the semicircle that can relatively commonly use of indent arc and trapezoidal raising 30%.
Thus, by the cooperation of central block plate body 11 and limit block plate body 12, in the plummer recess 5 that the track 13 on track stretches into plate body and each recess, whole like this acoustic board structure and track mutually will be engaged and not easily loosen.
The convex-concave arranged at plate body upper surface clips most advanced and sophisticated wedge horizontally set, can apply transition principle gradually like this, improves the effect of high frequency sound absorption and reduction air pressure wave.
Preferably, described central block plate body 11 and limit block plate body 12 can adopt the inorganic particulate material of multiple size fractionated and porosity to be absorbing base material, to improve sound-absorbing effect, its also available inorganic coagulation material be that cementitious materials is built and formed.
For ensureing that abatvoix does not skid off ballast bed of track, see Fig. 1, be placed in ballast bed of track 14 both sides by angle bar 15 or other structures, fix with holdfast 16, also with glue, central block plate body 11 and limit block plate body 12 can be bondd with ballast bed of track 14, thus abatvoix is spacing.
Preferably, also can paste rubber strip 17 on ballast bed of track, be placed in rubber adhesive tape by central block plate body 11 and limit block plate body 12, its effect is for abatvoix provides flexible cushion, in order to avoid mutually to collide and broken through out-of-date abatvoix and ballast bed of track at train.
Plate body of the present invention can adopt porous inorganic material to be absorbing base material, builds formation with adhesive cementation.The wedge absorber of upper surface can be designed to linear pattern or undaform.
As can be seen here, advantage of the present invention is:
1, this abatvoix is laid on ballast bed of track surface, easy for installation, porous inorganic material is utilized to carry out noise reduction to the principle that acoustic wave energy absorbs, effectively can reduce the impact of wheel-rail noise on passenger, the most namely starting to absorb wheel-rail noise from noise source simultaneously, avoid the diffusion of noise, effectively reduce noise.
2, adopt porous inorganic material to carry out noise reduction to the principle that acoustic wave energy absorbs, carry out noise reduction than adopting the principle of sound insulation and effectively can reduce the impact of noise on nearby residents and passenger.
3, in structure design, clip most advanced and sophisticated wedge by the upper surface horizontally set convex-concave of plate body, apply transition principle gradually, improve the effect of high frequency sound absorption and reduction air pressure wave, be conducive to alleviating acoustic pressure, reduce compression wave to the impact of vehicle/tunnel wall.
4, the bottom of plate body arranges the cavity perpendicular to line direction, sound wave enters cavity at the bottom of plate by abatvoix surface and resonates with air wherein, the kinetic transformation of acoustical vibration is that heat energy makes sound energy attenuation, thus improves the effect of sound absorption and reduction air pressure wave.
5, the two ends, left and right, bottom of plate body are provided with the recess matched with sleeper, make the nearer of abatvoix and noise source distance, thus add the acoustically effective of abatvoix.
It is evident that, above description and record be only citing instead of in order to limit disclosure of the present invention, application or use.Although described in an embodiment and be described in the drawings embodiment, but the present invention do not limit by accompanying drawing example and describe in an embodiment as the optimal mode thought at present to implement the specific examples of instruction of the present invention, scope of the present invention will comprise any embodiment of manual and the appended claim fallen into above.
Claims (5)
1. a track acoustic board structure, comprises the central block plate body between two siding tracks and the limit block plate body being positioned at track both sides, it is characterized in that:
Described central block plate body and limit block plate body are the cellular structure plate body that porous inorganic material is made;
The two ends, left and right of described central block plate body are provided with the sleeper recess matched with sleeper, and be provided with longitudinal gutter groove in the middle part of soffit, both sides, middle part are respectively equipped with plummer recess, and soffit is provided with horizontal link groove;
Clip most advanced and sophisticated wedge at the upper surface horizontally set many of central block plate body and limit block plate body, described many wedges are waveform and spaced arrangement;
The soffit of described limit block plate body is provided with at least one indent arc-shaped cavity extended perpendicular to line direction.
2. track acoustic board structure as claimed in claim 1, is characterized in that: the inside middle portion of described limit block plate body is provided with plummer recess.
3. track acoustic board structure as claimed in claim 1, is characterized in that: the two ends of described limit block plate body are provided with the concavo-convex joint construction realizing plate body and be connected with plate body, and this concavo-convex joint construction is made up of the projection of the recess and the other end that are located at one end.
4. track acoustic board structure as claimed in claim 1, is characterized in that: by angle bar, described central block plate body and limit block plate are placed in ballast bed of track both sides, fix with holdfast.
5. track acoustic board structure as claimed in claim 1, it is characterized in that: the railway roadbed of track is pasted with rubber strip, described central block plate body and limit block plate body are placed in rubber adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310423446.0A CN103452015B (en) | 2013-09-17 | 2013-09-17 | Track acoustic board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310423446.0A CN103452015B (en) | 2013-09-17 | 2013-09-17 | Track acoustic board structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103452015A CN103452015A (en) | 2013-12-18 |
| CN103452015B true CN103452015B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310423446.0A Active CN103452015B (en) | 2013-09-17 | 2013-09-17 | Track acoustic board structure |
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| CN (1) | CN103452015B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005308A (en) * | 2013-12-20 | 2014-08-27 | 柳州汉西鸣建材发展有限公司 | Sound absorption board |
| CN105297562A (en) * | 2015-11-02 | 2016-02-03 | 西南交通大学 | Construction method for noise reduction type composite track board and noise reduction type composite track board |
| CN108017410A (en) * | 2018-01-26 | 2018-05-11 | 湖北宇声环保科技有限公司 | A kind of ballast bed of track abatvoix and preparation method thereof |
| CN110593023A (en) * | 2019-08-30 | 2019-12-20 | 罗桂花 | Vibration and noise reduction device for track floating plate |
| CN113174786A (en) * | 2021-03-24 | 2021-07-27 | 江苏誉朔新材料科技有限公司 | Piece together formula railway roadbed abatvoix and inhale sound subassembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29821913U1 (en) * | 1998-11-20 | 1999-02-04 | ISOLITH Leichtbauplattenwerk M. Hattinger Ges.m.b.H., Straßwalchen | Sound absorbing flooring |
| EP1258563A2 (en) * | 2001-05-15 | 2002-11-20 | Pfleiderer Infrastrukturtechnik GmbH & Co. KG | Ballastless railway track with elastically supported sound absorber elements |
| CN201106143Y (en) * | 2007-10-18 | 2008-08-27 | 成都西南高铁轨道科技发展有限责任公司 | Acoustic panel for reducing unballasted track travelling crane noise |
| CN201686905U (en) * | 2010-05-21 | 2010-12-29 | 淄博北辰金属材料科技发展有限公司 | Track sound absorption slipper |
| CN102021869A (en) * | 2009-09-17 | 2011-04-20 | 上海黎安环保科技有限公司 | Wideband sound absorption wedge plate |
| CN102337708A (en) * | 2010-07-21 | 2012-02-01 | 张洪德 | Acoustic board for ballast bed of ballastless track |
| CN202830656U (en) * | 2012-08-15 | 2013-03-27 | 齐琳 | Lightweight aggregate acoustic panel absorber |
-
2013
- 2013-09-17 CN CN201310423446.0A patent/CN103452015B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29821913U1 (en) * | 1998-11-20 | 1999-02-04 | ISOLITH Leichtbauplattenwerk M. Hattinger Ges.m.b.H., Straßwalchen | Sound absorbing flooring |
| EP1258563A2 (en) * | 2001-05-15 | 2002-11-20 | Pfleiderer Infrastrukturtechnik GmbH & Co. KG | Ballastless railway track with elastically supported sound absorber elements |
| CN201106143Y (en) * | 2007-10-18 | 2008-08-27 | 成都西南高铁轨道科技发展有限责任公司 | Acoustic panel for reducing unballasted track travelling crane noise |
| CN102021869A (en) * | 2009-09-17 | 2011-04-20 | 上海黎安环保科技有限公司 | Wideband sound absorption wedge plate |
| CN201686905U (en) * | 2010-05-21 | 2010-12-29 | 淄博北辰金属材料科技发展有限公司 | Track sound absorption slipper |
| CN102337708A (en) * | 2010-07-21 | 2012-02-01 | 张洪德 | Acoustic board for ballast bed of ballastless track |
| CN202830656U (en) * | 2012-08-15 | 2013-03-27 | 齐琳 | Lightweight aggregate acoustic panel absorber |
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| Publication number | Publication date |
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| CN103452015A (en) | 2013-12-18 |
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