CN103452015A - Track acoustic board structure - Google Patents
Track acoustic board structure Download PDFInfo
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- CN103452015A CN103452015A CN2013104234460A CN201310423446A CN103452015A CN 103452015 A CN103452015 A CN 103452015A CN 2013104234460 A CN2013104234460 A CN 2013104234460A CN 201310423446 A CN201310423446 A CN 201310423446A CN 103452015 A CN103452015 A CN 103452015A
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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, relate in particular to a kind of track abatvoix structure that the ballast bed of track surface is used to reduce the driving noise that is laid on.
Background technology
Along with human lives's expansion, in the modern city of countries in the world, the urban traffic track inevitably passes through under dense population areas and important building, and the vibration produced during train driving and noise have had a strong impact on the normal work of people and life.Therefore manage to reduce vibration and the noise of city rail, the good ground that improves is coordinated with nature and living environment, has become people's question of common concern.Find that by test wheel-rail noise is the main sound source of metro noise at present, rail vibration is again a main aspect that causes wheel-rail noise.Existing track soundproof measures is mainly to build audio frequency barrier on the track both sides, due to it away from sound source, poor effect, and affect attractive in appearance.Therefore the needs exploitation is a kind of is specifically designed near the noise reduction product of wheel track, and the product that this reduction noise of current domestic shortage is used for you to choose.
For this reason, designer of the present invention In view of the foregoing, by concentrating on studies and designing, comprehensively is engaged in experience and the achievement of related industry for a long time, and research and design goes out a kind of track abatvoix structure, to address the above 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, so that a kind of track abatvoix structure of ballast bed of track surface for reducing the rail travelling crane noise that be laid on to be provided, be not subject to the restriction of time and construction program, both can on newly-built circuit, use, also can adopt when both wired transformations.
For achieving the above object, the invention discloses a kind of track abatvoix structure, comprise central block plate body and the limit piece plate body that is positioned at the track both sides between two siding tracks, it is characterized in that:
Described central block plate body and limit piece 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 the soffit middle part is provided with gutter groove longitudinally, and the both sides, middle part are respectively equipped with the plummer recess, and soffit is provided with horizontal connecting rod groove;
Many of the upper surface horizontally sets at central block plate body and limit piece plate body are clipped most advanced and sophisticated wedge, and arrange described many wedge spaces.
Wherein, the inboard, middle part of described limit piece plate body is provided with the plummer recess.
Wherein, the two ends of described limit piece plate body are provided with the concavo-convex joint construction of realizing that plate body is connected with plate body, and this concavo-convex joint construction forms by establishing recess at one end and the projection of the other end.
Wherein, the soffit of described limit piece plate body is provided with at least one cavity extended perpendicular to line direction.
Wherein, described cavity is the indent arc-shaped cavity.
Wherein, by angle bar, described central block plate body and limit piece plate are placed in to the ballast bed of track both sides, fix with holdfast.
Wherein, on the railway roadbed of track, be pasted with rubber strip, described central block plate body and limit piece plate body are placed on the rubber adhesive tape.
By said structure, the present invention has realized following technique effect:
1, the principle that adopts porous inorganic material to be absorbed acoustic wave energy is carried out noise reduction, than the principle that adopts sound insulation, carries out the effectively impact of noise reduction on peripheral resident and passenger of noise reduction.
2, on structure design, upper surface horizontally set convex-concave by plate body is clipped most advanced and sophisticated wedge, applies transition principle gradually, improves the effect of high frequency sound absorption and reduction air pressure wave, be conducive to alleviate acoustic pressure, reduce the impact of compression wave on vehicle/tunnel wall.
3, the bottom of plate body arranges the cavity perpendicular to line direction, at the bottom of sound wave enters plate by the abatvoix surface, cavity resonates with air wherein, the kinetic transformation of acoustical vibration is that heat energy makes sound energy attenuation, thereby 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, thereby have increased the acoustically effective of abatvoix.
5, adopt orbital plane paving, short range noise-reducing, can with the lightweight parapet that absorbs sound, with the anticreep parapet, be combined, impact force is alleviated in sound absorption simultaneously.
6, this abatvoix is laid on the ballast bed of track surface, easy for installation, the principle of utilizing porous inorganic material to be absorbed acoustic wave energy is carried out noise reduction, can effectively reduce the impact of wheel-rail noise on the passenger, the most starting to absorb wheel-rail noise from noise source simultaneously, avoid the diffusion of noise, effectively reduce noise.
Detailed content of the present invention can obtain by explanation and the accompanying drawing of back.
The accompanying drawing explanation
Fig. 1: the scheme of installation of track abatvoix 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 piece.
Fig. 7: the elevation of limit of the present invention piece.
Fig. 8: the left view of limit of the present invention piece.
The specific embodiment
Referring to Fig. 1-2, shown that track abatvoix structure of the present invention is installed on the concrete schematic diagram of track.
Described track abatvoix structure comprises the central block plate body 11 between two siding tracks and is positioned at the limit piece plate body 12 of track both sides.
Referring to Fig. 3-5, shown central block plate body 11 of the present invention, described central block plate body 11 is the cellular structure plate body, be provided with the sleeper recess 3 matched with sleeper at the two ends, left and right of central block plate body 11, the soffit middle part of central block plate body 11 is provided with gutter groove 7 longitudinally, described gutter groove 7 is corresponding with the 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 connecting rod groove 4, described connecting rod groove 4 is corresponding with the connecting rod of track.
Wherein, at many of the upper surface horizontally sets of central block plate body 11, clip most advanced and sophisticated wedge 6, described wedge 6 undulates, arrange described many wedges 6 spaces.
Referring to Fig. 6-8, shown limit of the present invention piece plate body 12, described limit piece plate body 12 is the cellular structure plate body, and the inboard, middle part of described limit piece plate body 12 is provided with plummer recess 5, the inboard, two ends is provided with recess, and the recess at described plummer recess 5 and two ends is corresponding with the plummer 13 of track.
Front and back overlap joint for ease of limit piece plate body 12, be provided with the concavo-convex joint construction of realizing that plate body is connected with plate body at the two ends of limit piece plate body 12, this concavo-convex joint construction forms by establishing recess 8 at one end and the projection 9 of the other end in the present embodiment, during use by the protrusion of neighbouring plate and the mutual interlock of recess, polylith limit piece plate body 12 can before and after concavo-convex interlocking, form an integral body that is laid on track bed 14 surfaces.
Wherein, at many of the same horizontally sets of upper surface of limit piece plate body 12, clip most advanced and sophisticated wedge 6, described wedge 6 undulates, arrange described many wedges 6 spaces.
Wherein, the soffit of described limit piece plate body 12 is provided with at least one cavity 10 extended perpendicular to line direction, be preferably two, at the bottom of so just making sound wave enter plate by the abatvoix surface, cavity resonates with air wherein, the kinetic transformation of acoustical vibration is that heat energy makes sound energy attenuation, thereby improves the effect of sound absorption and reduction air pressure wave.
Preferably, described cavity 10 is the indent arc-shaped cavity, through repetition test, the indent arc-shaped cavity can further improve the effect that the kinetic transformation of acoustical vibration is heat energy, thereby improved the technique effect that makes sound energy attenuation and reduce air pressure wave, in test, the semicircle that the indent arc can be relatively commonly used and the assimilation effect of trapezoidal raising 30%.
Thus, by the cooperation of central block plate body 11 and limit piece plate body 12, the track 13 on track stretches in the plummer recess 5 and each recess of plate body, and whole like this abatvoix structure and track interlock mutually are difficult for loosening.
Clip most advanced and sophisticated wedge horizontally set in the convex-concave of plate body upper surface setting, can apply transition principle gradually like this, improve the effect of high frequency sound absorption and reduction air pressure wave.
Preferably, it is the sound-absorbing base material that described central block plate body 11 and limit piece plate body 12 can adopt the inorganic particulate material of multiple size fractionated and porosity, to improve sound-absorbing effect, its also available inorganic coagulation material be that cementitious materials is built and formed.
For guaranteeing that abatvoix does not skid off ballast bed of track, referring to Fig. 1, be placed in ballast bed of track 14 both sides by angle bar 15 or other structures, fixing with holdfast 16, also can central block plate body 11 and limit piece plate body 12 be bondd with ballast bed of track 14 with glue, thus abatvoix is spacing.
Preferably, also can on ballast bed of track, paste rubber strip 17, central block plate body 11 and limit piece plate body 12 are placed on the rubber adhesive tape, its effect is for abatvoix provides flexible cushion, in order to avoid mutually collide and fragmentation through out-of-date abatvoix and ballast bed of track at train.
It is the sound-absorbing base material that plate body of the present invention can adopt porous inorganic material, with adhesive cementation, builds formation.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 the ballast bed of track surface, easy for installation, the principle of utilizing porous inorganic material to be absorbed acoustic wave energy is carried out noise reduction, can effectively reduce the impact of wheel-rail noise on the passenger, the most starting to absorb wheel-rail noise from noise source simultaneously, avoid the diffusion of noise, effectively reduce noise.
2, the principle that adopts porous inorganic material to be absorbed acoustic wave energy is carried out noise reduction, than the principle that adopts sound insulation, carries out the effectively impact of noise reduction on peripheral resident and passenger of noise reduction.
3, on structure design, upper surface horizontally set convex-concave by plate body is clipped most advanced and sophisticated wedge, applies transition principle gradually, improves the effect of high frequency sound absorption and reduction air pressure wave, be conducive to alleviate acoustic pressure, reduce the impact of compression wave on vehicle/tunnel wall.
4, the bottom of plate body arranges the cavity perpendicular to line direction, at the bottom of sound wave enters plate by the abatvoix surface, cavity resonates with air wherein, the kinetic transformation of acoustical vibration is that heat energy makes sound energy attenuation, thereby 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, thereby have increased the acoustically effective of abatvoix.
It is evident that, above description and record are only for example rather than 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 optimal mode that the present invention does not limit by the accompanying drawing example and the conduct of describing is in an embodiment thought at present to be to implement the specific examples of instruction of the present invention, scope of the present invention will comprise any embodiment of the manual that falls into front and appended claim.
Claims (7)
1. a track abatvoix structure, comprise central block plate body and the limit piece plate body that is positioned at the track both sides between two siding tracks, it is characterized in that:
Described central block plate body and limit piece 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 the soffit middle part is provided with gutter groove longitudinally, and the both sides, middle part are respectively equipped with the plummer recess, and soffit is provided with horizontal connecting rod groove;
Many of the upper surface horizontally sets at central block plate body and limit piece plate body are clipped most advanced and sophisticated wedge, and arrange described many wedge spaces.
2. track abatvoix structure as claimed in claim 1, it is characterized in that: the inboard, middle part of described limit piece plate body is provided with the plummer recess.
3. track abatvoix structure as claimed in claim 1, it is characterized in that: the two ends of described limit piece plate body are provided with the concavo-convex joint construction of realizing that plate body is connected with plate body, and this concavo-convex joint construction forms by establishing recess at one end and the projection of the other end.
4. track abatvoix structure as claimed in claim 1 is characterized in that: the soffit of described limit piece plate body is provided with at least one cavity extended perpendicular to line direction.
5. track abatvoix structure as claimed in claim 4, it is characterized in that: described cavity is the indent arc-shaped cavity.
6. track abatvoix structure as claimed in claim 1, is characterized in that: by angle bar, described central block plate body and limit piece plate are placed in to the ballast bed of track both sides, fix with holdfast.
7. track abatvoix structure as claimed in claim 1, it is characterized in that: be pasted with rubber strip on the railway roadbed of track, described central block plate body and limit piece plate body are placed on the 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 true CN103452015A (en) | 2013-12-18 |
| CN103452015B 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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Cited By (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)
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| 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 |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN103452015B (en) | 2015-04-22 |
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