CN104005308A - Sound absorption board - Google Patents
Sound absorption board Download PDFInfo
- Publication number
- CN104005308A CN104005308A CN201310708329.9A CN201310708329A CN104005308A CN 104005308 A CN104005308 A CN 104005308A CN 201310708329 A CN201310708329 A CN 201310708329A CN 104005308 A CN104005308 A CN 104005308A
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- China
- Prior art keywords
- plate
- abatvoix
- sound absorption
- described side
- absorption board
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Abstract
The invention discloses a sound absorption board, and relates to the technical field of railway construction materials. The sound absorption board comprises a square plate that is cube-shaped; a cross concave groove which extends to four longitudinal end surfaces of the square plate is formed in the bottom part of the square plate. Compared with the prior art, the sound absorption board has the advantage that the problems of poor sound absorption effect, easy cracking, and inconvenient use of the existing sound absorption board can be solved.
Description
Technical field
The present invention relates to railway building materials technology field, especially a kind of be arranged on viaduct on the bridge floor between track and ladder-type sleepers railway roadbed in the middle of bridge floor on abatvoix.
Background technology
In urban track traffic, because city can be for the limited space of building, smooth-going in order to ensure stablizing of track traffic, the maintenance of minimizing to track means of transportation, generally adopt solid concrete roabed, but its noise reduction coefficient is very little, only has 0.07 left and right.In train operation process, noise is mainly caused by tractor and power-equipment noise, wheel-rail noise, pantograph noise, in densely populated city, these long-standing noises, near resident's life and work are seriously affected, only solve these problems, just can better Urban Rail Transit Development.Between the two rails on railway roadbed noise Comparatively speaking larger, therefore abroad, as some developed countries such as Germany, taked to install at this position round-the-clock railway roadbed abatvoix and reduced these noise pollutions.
At present, the round-the-clock railway roadbed abatvoix being positioned between two rails is to adopt the damping materials such as concrete haydite to make, abatvoix is generally the square plate of 15 cm thicks, install according to the size positions of track, do not affect the safety of train, construction install convenience, noise when energy absorption portion train operation, reduce the interference of noise on human, increase people's level of comfort.For example, the abatvoix that Germany produces, through circuit actual measurement, can reduce noise and reach more than 3 decibels.
But still there is more defect in the abatvoix of this structure: when abatvoix is placed on the bridge floor in the middle of two tracks, be directly laid in bottom, and bridge floor out-of-flatness, in long-term operation process, the vibration being subject to is larger, and easily there is cracking in abatvoix; In addition, abatvoix and bridge floor are directly sturdy, when construction is adjusted and is changed without origin of force, operate extremely inconvenient, and cannot draining blowdown, sound-absorbing effect is poor.
Summary of the invention
Problem to be solved by this invention is to provide a kind of abatvoix, poor to solve existing abatvoix sound-absorbing effect, and easily ftractures, inconvenient problem with use.
In order to address the above problem, technical scheme of the present invention is: this abatvoix side of comprising plate, and described side's plate is square, and described side's plate bottom has cross recess, and described cross recess extends to four vertical end faces of described side's plate.
In technique scheme, more specifically scheme can be: described side's plate top surface edge has oblique angle or fillet, and described side's plate is the square plate through the pretreated material of waterproof mildew-resistant.
Further: described side's plate is the square plate through the material of silane high-effect water-proof agent processing.
Owing to having adopted technique scheme, the present invention compared with prior art has following beneficial effect:
This abatvoix be placed on viaduct on the bridge floor between track and ladder-type sleepers railway roadbed in the middle of bridge floor on, fill up the space of overhead bridge floor, can play round-the-clock sound absorption to railway roadbed; Four corners of this abatvoix bottom form partial points face with track and contact, and reduce contact surface, make stressed more even; The cross recess energy draining blowdown in time that bottom communicates, can realize oneself cleaning of abatvoix, increases durability, and for construction provides stress point, the cross recess of bottom, the uptake of increase low-frequency noise; And abatvoix is through waterproof mildew-resistant pretreatment, can prevent the abatvoix phenomenon such as breed bacteria, moss under moist environment for a long time, stop up the tiny duct of abatvoix, keep acoustically effective.Use the present invention can reduce the noise of 4 decibels of left and right, even can reduce more than 5 decibels at Part load.
Brief description of the drawings
Fig. 1 is the top view of the embodiment of the present invention;
Fig. 2 is the front view of the embodiment of the present invention;
Fig. 3 is that the embodiment of the present invention is arranged on the top view on sleeper;
Fig. 4 is that the embodiment of the present invention is arranged on the horizontal cross on sleeper.
Detailed description of the invention
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail:
This abatvoix as shown in Figures 1 to 4, its side's of comprising plate 1, the party's plate 1 is square, its upper surface is overlooked and is seen that its four length of side is all L as the square plate 1 in Fig. 1, plate 1 bottom, side has cross recess 2, four vertical end faces of cross recess 2 side's of extending to plates 1, the wide D of cross recess 2, the size of high h can be adjusted according to the sleeper height of concrete ballast bed structure.As this abatvoix of Fig. 3 is placed on the bridge floor 3 in the middle of bridge floor between two tracks or ladder-type sleepers railway roadbed, fill up the space of bridge floor, can round-the-clockly play sound absorption to railway roadbed, four corners of bottom contact with track formation partial points face, reduce contact surface.The design of cross recess 2, provides construction stress point, and increases the uptake of low-frequency noise.As Fig. 4 expresses the flow direction of current in the cross recess 2 of sleeper 3 and this abatvoix, can find out the cross recess 2 draining blowdown in time that this abatvoix bottom communicates, can realize the automatically cleaning of abatvoix, increase durability; Side's plate 1 is the square plate through the pretreated material of waterproof mildew-resistant, the waterproof mildew-resistant pretreatment is here through the processing of silane high-effect water-proof agent, can prevent the abatvoix phenomenon such as breed bacteria, moss under moist environment for a long time, stop up the tiny duct of abatvoix, keep acoustically effective.Side's plate 1 top surface edge has oblique angle, and in other embodiments, square plate 1 top surface edge is rounded down, to reduce the possibility of colliding with and damaging.
Claims (4)
1. an abatvoix, the side's of comprising plate, is characterized in that: described side's plate is square, and described side's plate bottom has cross recess, and described cross recess extends to four vertical end faces of described side's plate.
2. abatvoix according to claim 1, is characterized in that: described side's plate top surface edge has oblique angle or fillet.
3. abatvoix according to claim 1 and 2, is characterized in that: described side's plate is the square plate through the pretreated material of waterproof mildew-resistant.
4. abatvoix according to claim 3, is characterized in that: described side's plate is the square plate through the material of silane high-effect water-proof agent processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708329.9A CN104005308A (en) | 2013-12-20 | 2013-12-20 | Sound absorption board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708329.9A CN104005308A (en) | 2013-12-20 | 2013-12-20 | Sound absorption board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104005308A true CN104005308A (en) | 2014-08-27 |
Family
ID=51366198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310708329.9A Pending CN104005308A (en) | 2013-12-20 | 2013-12-20 | Sound absorption board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104005308A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820548A (en) * | 2019-11-30 | 2020-02-21 | 常熟市宝德桥梁构件有限公司 | Basin type rubber support with excellent anti-seismic effect |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1170419A2 (en) * | 2000-07-06 | 2002-01-09 | Durisol Raalte B.V. | Soundproof ballastless railway track superstructure and sound absorption element |
| JP2002227144A (en) * | 2001-02-01 | 2002-08-14 | National Traffic Safety & Environment Laboratory | Sound absorbing structure for track |
| CN201003146Y (en) * | 2007-02-12 | 2008-01-09 | 邢瑜鸣 | Sound barrier acoustic board |
| KR20110124848A (en) * | 2010-05-12 | 2011-11-18 | 한국철도기술연구원 | Noise control constructing method of rail way using noise absorbing plate |
| CN103452015A (en) * | 2013-09-17 | 2013-12-18 | 浙江天铁实业股份有限公司 | Track acoustic board structure |
-
2013
- 2013-12-20 CN CN201310708329.9A patent/CN104005308A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1170419A2 (en) * | 2000-07-06 | 2002-01-09 | Durisol Raalte B.V. | Soundproof ballastless railway track superstructure and sound absorption element |
| JP2002227144A (en) * | 2001-02-01 | 2002-08-14 | National Traffic Safety & Environment Laboratory | Sound absorbing structure for track |
| CN201003146Y (en) * | 2007-02-12 | 2008-01-09 | 邢瑜鸣 | Sound barrier acoustic board |
| KR20110124848A (en) * | 2010-05-12 | 2011-11-18 | 한국철도기술연구원 | Noise control constructing method of rail way using noise absorbing plate |
| CN103452015A (en) * | 2013-09-17 | 2013-12-18 | 浙江天铁实业股份有限公司 | Track acoustic board structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820548A (en) * | 2019-11-30 | 2020-02-21 | 常熟市宝德桥梁构件有限公司 | Basin type rubber support with excellent anti-seismic effect |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140827 |