KR101864343B1 - Sound absorption block for high speed railway concrete - Google Patents

Sound absorption block for high speed railway concrete Download PDF

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Publication number
KR101864343B1
KR101864343B1 KR1020170008276A KR20170008276A KR101864343B1 KR 101864343 B1 KR101864343 B1 KR 101864343B1 KR 1020170008276 A KR1020170008276 A KR 1020170008276A KR 20170008276 A KR20170008276 A KR 20170008276A KR 101864343 B1 KR101864343 B1 KR 101864343B1
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KR
South Korea
Prior art keywords
block
sound absorbing
railway
sound
cushion
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Application number
KR1020170008276A
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Korean (ko)
Inventor
임상혁
전우상
손동기
심규철
Original Assignee
주식회사 지이티-피씨
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Priority to KR1020170008276A priority Critical patent/KR101864343B1/en
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Publication of KR101864343B1 publication Critical patent/KR101864343B1/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E01B19/003—Means for reducing the development or propagation of noise

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

The present invention relates to a sound absorption block for a concrete bed of a high speed railway, facilitating checking a crack and maintenance thereof. According to the present invention, a sound absorption block (20) is installed on an upper surface of a high speed railway bed (10) made of concrete, wherein a buffering pad (30) with a predetermined height is installed between the sound absorption block (20) and the railway bed (10). Moreover, a plurality of through-holes (22) vertically and downwardly formed from the upper surface of the sound absorption block (20) are added to recognize a crack state of the railway bed (10).

Description

[0001] The present invention relates to a sound absorption block for high speed railway concrete,

More particularly, the present invention relates to a sound absorption block for a high-speed railway concrete road which facilitates crack inspection for a high-speed railway road made of concrete and maintenance due to cracking thereof.

The roads of high-speed trains have been changed from past gravel roads to concrete roads for ease of construction and management.

However, unlike gravel roads, concrete roads cause noise to be radiated around the railway due to the characteristic of reflecting the electric noise generated from the lower part of the train as it is.

Therefore, in order to reduce the noise of trains like concrete gravel road, research on road noise absorption block has been continuously carried out, and its applications are also increasing.

In the case of a conventional soundproof building block for concrete use, it is constructed so as to cover as much road surface area as possible with a mass which is as large as possible in order to reduce electric noise and rail radiation noise below the train as much as possible.

Therefore, the conventional sound-absorbing block has to have a large load as a whole, which causes an additional load burden on the road. In particular, in the case of a bridge, there is a problem that the structural safety of the bridge must be re- .

In the case of concrete, as the concrete is weakened due to the vibration due to the train and the external environment as time passes, the sound absorption block itself covers a large area of the road when cracks occur between the joints of the road and the sleepers or on the road surface. It is difficult to confirm the cracks on the surface because the surface is covered, and maintenance and inspection are difficult.

For reference, the following prior art documents are those listed in three prior art documents recently searched with the keyword " road noise absorption block "as a keyword, and reference is made to the following prior art documents, The background technique will be described in more detail.

Public / registration numbers: 10-2016-0066810, 10-1295751, 10-1276083.

The present invention has been developed in order to solve the conventional problems mentioned in the background art, and it is an object of the present invention to apply a sound-absorbing block which is installed on a concrete road of a high-speed railway and can reduce noise and vibration of a train, The sound absorbing block is advantageous for checking the cracks on the road surface, facilitating the maintenance according to cracks on the road surface, preventing the sound absorbing block from occupying the entire road surface, and reducing the weight of the sound absorbing block. The present invention has been made to solve the above problems.

The present invention provides, as means for solving the above object,

First, it is proposed to install a sound absorbing block on the upper surface of a high-speed railway road made of concrete, and to install a shock absorbing pad having a height enough to confirm the cracks of the road between the sound absorbing block and the upper surface of the road by inserting a visual or endoscope camera do.

Second, it is proposed that, while the above-mentioned cushioning pad is installed, a plurality of through-holes capable of observing the surface of the cushion are formed in the sound-absorbing block itself.

Third, it is proposed that the above-mentioned through-holes are formed while being bonded to each other in the form of being laid on each other in a cross-sectional shape, between the buffer pads and the sound-absorbing blocks, so that the buffer pads and the sound-absorbing blocks are lifted from the passageways when the cracks are generated.

Fourthly, it is proposed to arrange the sound-absorbing block in such a manner that the sound-absorbing block is divided into the form corresponding to the two-end form between the railway and the railway, between the railway and the railway, between the railway and the railway.

Fifthly, the sound-absorbing block is produced by adding any one or two or more of styrofoam granules, expanded graphite, expanded clay, fly ash, and natural aggregates having a specific gravity of 0.8 or less to the weight of the sound- Is reduced.

According to the means proposed in the present invention, there is an advantageous effect of checking cracks on the road surface by the cushion pad and the through hole, and it is advantageous that the cushion pad, the coupling type between the cushioning pad and the sound- It is possible to prevent the whole road from being covered by the coupling type between the sound absorbing blocks and to easily maintain maintenance by the cracks of the road surface and to prevent the cracks of the road by positively reducing the light- It is effective.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-
Figure 2 is another cross-sectional view of Figure 1
Fig. 3 is a plan view of Fig.
4 is a perspective view showing an example of a first block applied to Fig.
Fig. 5 is a perspective view showing an example of a second block applied to Fig.
6 is a perspective view showing an example of a third block applied to Fig.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the appended drawings may be exaggerated, omitted, or outlined for convenience of description, and the terms and names used in the description are intended to be implicitly construed according to the shape, And the description of the position will be described with reference to the drawings unless otherwise specified. And specific descriptions of well-known and commonly-used techniques may be omitted to avoid obscuring the subject matter, or to be omitted or replaced with a simple code or name.

Below, 1  The present invention is described below with reference to the drawings.

As shown in the figure, the present invention is characterized in that a sound absorbing block 20 is installed on the upper surface of a high-speed railway drawing body 10 made of concrete, and a shock absorbing block 20 having a predetermined height between the sound absorbing block 20 and the upper surface of the drawing body 10 30) is provided.

The cushioning pad 30 prevents the vibration of the sound-absorbing block 20 generated when the train passes through the vehicle body 10 from being directly transmitted to the vehicle body 10, This is to prevent cracks from being generated in the vehicle body 10 due to vibration.

It is also possible to use a visual or endoscopic camera through a space between the sound-absorbing block 20 and the upper surface of the image element 10 by floating the appropriate height from the image element 10 with the buffer pad 30, So that cracks can be checked.

The gap between the sound absorbing block 20 floated by the buffer pad 30 and the upper surface of the drawing sheet 10 is suitably 15 to 20 mm and the material of the buffer pad 30 is made of EVA, ≪ / RTI >

The cushion pad 30 and the sound absorbing block 20 are formed with a groove 21 on the lower surface of the sound absorbing block 20 so that the sound absorbing block 20 can be lifted out of the circuit board 10 during repairing It is preferable that the sound absorbing block 20 is placed on the upper surface of the buffer pad 30 by the male and female coupling.

Although it is not shown in the drawings, it is preferable that the same groove 21 as the sound absorbing block 20 is formed on the upper surface of the balloon 10 on which the cushioning pads 30 are disposed,

As a result, it is possible to positively prevent the cracks of the concrete roads 10 which can be weakened as the train vibrates or the passage of time, and it is also possible to easily check the cracks and to prevent the cushion pads and the sound- It is easy to lift, and maintenance of the cracks of the vehicle is easy.

Although not shown, bolts are inserted vertically downward from the top surface of the cushioning pad 30 so that the cushioning pad 30 can be lifted from the cushion 10 as a more aggressive means for preventing the movement of the cushioning pad 30 A rubber packing is applied to the outer circumferential surface of the bolt inserted into the bolt 10 to prevent the vibration of the bolt generated when the bolt passes when the bolt passes through the concrete bolster 10 to be transmitted to the concrete bolt 10.

Thereby, there is an effect that the movement of the buffer pad 30 is prevented more positively, and maintenance on the cracks on the road surface is easy.

Below, 2  The present invention is described below with reference to the drawings.

As shown in the drawing, the present invention can add a plurality of through holes 22 vertically downward from the upper surface of the sound absorbing block 20 of FIG.

The through hole 22 is for absorbing the noise generated in the train into the through hole 22 and destroying it. At the same time, the through hole 22 is configured to check the floor condition of the vehicle body 10 through the through hole 22 And is configured to reduce the weight of the sound absorbing block 20.

As shown in the figure, it is preferable that the through hole 22 is formed in a conical shape so that its lower portion is wider than its upper portion. The reason for this is that the noise introduced into the through hole 22 from the upper portion is prevented from being trapped in the form of a cage so as to escape upwardly and to further confirm the condition of the floor when looking downward from the top, Thereby making it possible to advantageously manufacture the sound absorbing block 20 and to release the block from the mold and to extend the unnecessary space to further reduce the weight of the sound absorbing block 20. [

This makes it unnecessary for the operator to attach the face to the floor to check the cracks of the vehicle body 10 as compared with that shown in Fig. 1, to avoid the necessity of using equipment such as an endoscope camera, And the weight can be further reduced in weight.

Below, 3  The present invention is described below with reference to the drawings.

As shown, the sound-absorbing block 20 includes a first block 20a disposed between the sleepers 11 in the planar width direction and the sleepers 11; A second block 20b arranged between the first block 20a and the first block 20a and a center between the railway 12 and the railway 12 between the sleepers 11 and 11 in the longitudinal direction and between the first block 20a and the first block 20a, ); And a third block 20c disposed at both ends of the railway 12 and at both ends thereof and a third block 20c disposed at the treadmill 11 so as to correspond to both ends of the railway 12. The sound- The through holes 22 formed in the respective sound absorbing blocks 20 are formed so as not to overlap with the cushioning pads 30 in the plan view, And the sound absorbing block 20, the sleepers 11, and the railway 12 are formed so as to have a planar gap therebetween.

The reason why the sound absorbing block 20 is divided into the first block 20a, the second block 20b and the third block 20c is to prevent the sound absorbing block 20 from covering the whole of the vehicle body 10 And at the same time to avoid the parts of the sleepers 11, the railway 12 and the wheels of the train passing therethrough, and to reduce the unnecessary area to reduce the manufacturing cost of the sound-absorbing block 20, 10) is a portion in which cracks are generated, so that the sound-absorbing block 20 can be taken out to facilitate repairing of cracks.

The reason for arranging the buffer pads 30 in two or more rows is to maintain the stable position of the sound absorbing block 20 and the reason why the through holes 22 and the buffer pads 30 are not overlapped is that unnecessary interference And the reason why the male and female connectors are coupled with each other by male and female coupling between the sound-absorbing blocks 20 is for convenience of installation by tight contact and seat arrangement, and the constant gap is for preventing transmission of vibration due to contact.

In this way, it is easy to construct the sound-absorbing block 20, and it is easy to check cracks and repair the cracks of the vehicle body 10, reduce cost, and improve ease of use.

Below, 4  To 6  The present invention is described below with reference to the drawings.

As shown in the drawings, both ends of the second block 20b and the third block 20c corresponding to both side surfaces of the railway 12 may include a plurality of sound absorbing grooves 23 formed on a plane.

The sound-absorbing grooves 23 are for absorbing vibration and noise directly generated in the railway 12 in the sound-absorbing grooves 23 when the train passes.

This has the effect of more positively preventing the vibration and noise directly generated in the railway 12.

As shown in the figure, the upper surface of the sound absorbing block 20 may be provided with the sound absorbing pattern 24.

The sound-absorbing pattern 24 is not shown, but may be formed in a shape of a circular or ridged shape or an irregular shape from the surface, or may have a wave shape or a concavo-convex shape in a cross section of the surface, And a sound-absorbing pattern 24 in an anechoic pattern can be formed in the divided space.

In this case, since the vibration and noise generated in the lower portion of the train can be mostly absorbed on the surface of the sound-absorbing block 20, the vibration and noise can be prevented from spreading to a long distance.

Although not shown, the sound absorbing block 20 may be formed by adding any one or a mixture of two or more of styrofoam particles, expanded graphite, expanded clay, fly ash, natural aggregates having a specific gravity of 0.8 or less, can do.

The aggregate is used to lighten the weight of the sound absorbing block 20 and increase the vibration and sound absorbing effect by using the porous material.

In this way, the weight of the sound-absorbing block 20 is lightened, so that the construction becomes more convenient, and vibration and noise generated in the entirety of the train, the railroad 12, and the vehicle body 10 can be more positively prevented.

Hereinafter, the application of the configuration according to the present invention will be described.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. The structure, form, shape, arrangement, direction, and quantity of the constituent elements and their concrete constituent elements of the invention are determined in consideration of the principle to be pursued and may be variously changed as needed. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed and desired or desirable. It is. Accordingly, the present invention includes all of the above-described configurations, and the present invention is most preferably completed. However, the present invention can be completed by selecting or excluding some of the configurations described above according to cost reduction, manufacturing convenience, , One or a part of the components may be separated and completed in parallel with other components. In addition, each of the constituent elements described above can be applied independently to other technical fields in view of principle, purpose, function, role, action, effect, and the like. Accordingly, the present invention is not limited to the above embodiments and various changes and modifications may be made without departing from the scope of the present invention.

It will be apparent to those skilled in the art that the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment of the invention, It will be possible to increase the efficiency of use as well as the power generation.

Claims (7)

A sound absorbing block 20 installed on the upper surface of the high-speed railway drawing member 10 made of concrete; And a cushion pad (30) installed between the sound absorbing block (20) and the upper surface of the drawing body (10)
And a plurality of through holes (22) vertically downwardly formed from an upper surface of the sound absorbing block (20) to allow identification of a crack state of the vehicle body (10)
The through hole (22) includes a structure having a lower width than that of the upper portion,
Wherein the sound absorbing block 20 comprises one or a mixture of two or more of styrofoam particles, expanded graphite, expanded clay, fly ash, natural aggregates having a specific gravity of 0.8 or less,
The buffer pads 30 and the sound absorbing blocks 20 are formed with a trench 21 on the lower surface of the sound absorbing block 20 so that the sound absorbing blocks 20 can be lifted from the vehicle body 10 during repair, (20) on the upper surface of the housing
The cushioning pad 30 and the cushion 10 are formed in the same shape as the cushion 21 formed on the lower surface of the sound absorbing block 20 so that the cushion pad 30 can be lifted from the cushion 10 during maintenance. And the cushioning pad 30 is placed on the cushion 10 by male and female coupling,
The sound absorbing block 20 includes a first block 20a disposed between the sleepers 11 and the sleepers 11 in the planar width direction; A second block 20b arranged between the first block 20a and the first block 20a and a center between the railway 12 and the railway 12 between the sleepers 11 and 11 in the longitudinal direction and between the first block 20a and the first block 20a, ); And a third block 20c disposed on the treadmill 11 and the treadmill 11 in the longitudinal direction corresponding to both ends of the railway 12 and both ends thereof,
Wherein each of the sound absorbing blocks 20 includes at least two rows of cushioning pads 30 extending along the longitudinal direction of the railway 12,
Wherein each of the sound absorbing blocks 20 is coupled with a point of plane contact between the sound absorbing blocks 20 and the sound absorbing blocks 20 so that the sound absorbing blocks 20, the sleepers 11,
Both ends of the second block 20b and the third block 20c corresponding to both sides of the railway 12 of the sound absorbing block 20 form a plurality of sound absorbing grooves 23 on a plane, (12) to absorb vibration and noise,
And a sound absorbing pattern (24) is formed on an upper surface of the sound absorbing block (20) to absorb vibrations and noise generated in a lower portion of the train when the train passes. delete delete delete delete delete delete
KR1020170008276A 2017-01-17 2017-01-17 Sound absorption block for high speed railway concrete KR101864343B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210054700A (en) * 2019-11-06 2021-05-14 한국철도기술연구원 Prefabricated block for railway vibration reduction and block structure using the same
KR102395025B1 (en) 2021-11-23 2022-05-09 주식회사지이티-피씨 Soundproof block with fine dust removal function
AT526294A1 (en) * 2022-07-05 2024-01-15 Kirchdorfer Fertigteilholding Gmbh TRACK COVER PLATE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5260010U (en) * 1975-10-28 1977-05-02
EP1258563A2 (en) * 2001-05-15 2002-11-20 Pfleiderer Infrastrukturtechnik GmbH & Co. KG Ballastless railway track with elastically supported sound absorber elements
KR100910171B1 (en) * 2009-02-02 2009-07-30 최의용 Noise absorptive concrete panel for railway slab
KR101276083B1 (en) * 2012-09-24 2013-06-18 한국철도기술연구원 Ballast sound absorbing block of urban railway
KR20160066810A (en) 2014-12-03 2016-06-13 서울과학기술대학교 산학협력단 Construction method for noise absorptive block for railbed
KR20160086530A (en) * 2015-01-09 2016-07-20 한국철도기술연구원 Sound absorption apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5260010U (en) * 1975-10-28 1977-05-02
EP1258563A2 (en) * 2001-05-15 2002-11-20 Pfleiderer Infrastrukturtechnik GmbH & Co. KG Ballastless railway track with elastically supported sound absorber elements
KR100910171B1 (en) * 2009-02-02 2009-07-30 최의용 Noise absorptive concrete panel for railway slab
KR101276083B1 (en) * 2012-09-24 2013-06-18 한국철도기술연구원 Ballast sound absorbing block of urban railway
KR20160066810A (en) 2014-12-03 2016-06-13 서울과학기술대학교 산학협력단 Construction method for noise absorptive block for railbed
KR20160086530A (en) * 2015-01-09 2016-07-20 한국철도기술연구원 Sound absorption apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210054700A (en) * 2019-11-06 2021-05-14 한국철도기술연구원 Prefabricated block for railway vibration reduction and block structure using the same
KR102337657B1 (en) * 2019-11-06 2021-12-09 한국철도기술연구원 Prefabricated block for railway vibration reduction and block structure using the same
KR102395025B1 (en) 2021-11-23 2022-05-09 주식회사지이티-피씨 Soundproof block with fine dust removal function
AT526294A1 (en) * 2022-07-05 2024-01-15 Kirchdorfer Fertigteilholding Gmbh TRACK COVER PLATE

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