WO2010113807A1 - Dispositif d'isolation sonore pour rail - Google Patents

Dispositif d'isolation sonore pour rail Download PDF

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Publication number
WO2010113807A1
WO2010113807A1 PCT/JP2010/055405 JP2010055405W WO2010113807A1 WO 2010113807 A1 WO2010113807 A1 WO 2010113807A1 JP 2010055405 W JP2010055405 W JP 2010055405W WO 2010113807 A1 WO2010113807 A1 WO 2010113807A1
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WO
WIPO (PCT)
Prior art keywords
rail
cover
sound insulation
sound
insulation cover
Prior art date
Application number
PCT/JP2010/055405
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English (en)
Japanese (ja)
Inventor
松田　芳文
貴士 小口
裕幸 安部
Original Assignee
積水化学工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 積水化学工業株式会社 filed Critical 積水化学工業株式会社
Priority to EP10758579.6A priority Critical patent/EP2415933B1/fr
Priority to CN2010800029071A priority patent/CN102187035B/zh
Publication of WO2010113807A1 publication Critical patent/WO2010113807A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to a rail soundproofing device for preventing noise generated from railroad rails.
  • the soundproofing device includes three first to third sleepers S (only the second sleeper shown in the figure) that fix the rail R, from one side in the rail length direction to the other.
  • the first sound insulation cover 81 is passed to the first and second sleepers S
  • the second sound insulation cover 82 is passed to the second and third sleepers S.
  • the length of the first sound insulation cover 81 is formed according to the pitch of the second sleeper S
  • the length of the second sound insulation cover 82 is formed according to the pitch of the second and third sleepers S.
  • the first sound insulation cover 81 and the second sound insulation cover 82 are provided at the required portions of the rail surface in a state in which the butted portions 83 are formed between the opposing end surfaces of the first sound insulation cover 81 and the second sound insulation cover 82. It is what is covered.
  • one type of sound insulation cover 81, 82 formed in a certain length according to a small sleeper pitch is also prepared.
  • the opposing end surfaces of the first sound insulating cover 81 and the second sound insulating cover 82 do not face each other, and a gap 84 may be formed between the end surfaces. It was. If it does so, noise will leak from the clearance gap 84 and a noise prevention effect will be impaired.
  • An object of the present invention is to provide a rail soundproofing device that can effectively prevent noise by using a single type of soundproofing cover having the same length, without the need to prepare many soundproofing covers having different lengths.
  • three first to third sleepers fixing the rail are sequentially arranged from one side to the other side in the rail length direction, and the first and second sleepers are arranged.
  • the second sound insulation cover is passed to the second and third sleepers, the length of each sound insulation cover is constant, and the pitch and second of the first and second sleepers are passed.
  • the first sound insulation in a state where the opposite ends of the first sound insulation cover and the second sound insulation cover overlap each other over the required width on the second sleeper.
  • the cover and the second sound insulation cover are covered with a required portion of the rail surface.
  • one type of sound insulation cover having a length larger than the sleeper pitch is used, and the opposite ends of two adjacent sound insulation covers are overlapped by the length of the length. Therefore, the entire required portion of the rail surface can be covered without generating a gap between the opposing end surfaces of two adjacent sound insulation covers.
  • the rail is composed of a head, an abdomen, and a bottom that are successively connected from the top to the bottom, and each sound insulation cover is attached to the inner surface of the cover body that extends from the upper end of the abdomen side to the upper end of the bottom part, and the inner surface of the cover body.
  • the sound absorbing material is preferably made of foamed resin.
  • the resin include polyethylene resin, EPDM, polypropylene resin, and polyvinyl chloride resin.
  • the foaming ratio is 10 to 40, particularly, the foaming ratio is 15 to 30 from the viewpoint of soundproofing and workability. Further, it is preferable that the open cell ratio is 90% or more and the compressive stress (25%) is 3 to 5 kPa.
  • the rail consists of a head, abdomen, and bottom that are successively connected from top to bottom. If the bottom cover is formed, a large area from the abdomen side surface to the bottom bottom surface of the rail is covered with the sound insulation cover, so that a further noise prevention effect can be expected.
  • the present invention it is not necessary to prepare a large number of sound insulation covers having different lengths, and a sound insulation device for a rail that can effectively prevent noise by one type of sound insulation cover having the same length is provided.
  • FIG. 2 It is a graph which shows the result of having simulated the noise reduction effect based on the data shown in the said FIG. 8 and FIG. It is a side view equivalent to FIG. 2 which shows a prior art example. It is a side view equivalent to FIG. 2 which shows another prior art example.
  • the rail R is composed of a head portion Rt, an abdominal portion Rw, and a bottom portion Rb that are successively connected from top to bottom.
  • a pair of left and right sound insulation covers 11 are covered from the left and right sides of the abdomen Rw to the upper surface of the bottom Rb. Both sound-insulating covers 11 have the same structure, although the left and right directions are opposite.
  • Each sound insulation cover 11 includes a steel plate cover main body 11A spanned from the upper end of the side surface of the abdomen Rw to the front end of the bottom Rb, and a thin-walled vibration damping resin damping material 21 attached to the inner surface of the cover main body 11A and
  • the sound absorbing material 22 is made of a thick foamed resin.
  • FIG. 2 shows the installation state of the sound insulation cover 11.
  • Three first to third sleepers S1 to S3 are sequentially laid from the left side to the right side, and a rail R extending in the left-right direction is supported by the three first to third sleepers S1 to S3.
  • the rail R is fixed by a fastener T.
  • the first sound insulation cover 31 is passed to the first and second sleepers S1, S2, and the second sound insulation cover 32 is passed to the second and third sleepers S2, S3.
  • the first pitch P1 of the first and second sleepers S1, S2 and the second pitch P2 of the second and third sleepers S2, S3 are the same or larger than the former.
  • the length L of the first sound insulation cover 31 and the second sound insulation cover 32 is the same. These sizes have a relationship of P1 ⁇ P2 ⁇ L.
  • an overlapping portion 33 is provided so as to overlap each other over the required width B.
  • the width B of the overlapping portion 33 is preferably about 20 to 80 mm, more preferably 50 mm in consideration of variations in sleeper pitch and soundproofing performance. If it is less than 20 mm, if there is a large variation in the sleeper pitch, the variation width may be larger than the overlapping portion 33 and a gap may be formed, and the sound absorbing effect is reduced. On the other hand, if it exceeds 80 mm, since the overlapping portion 33 is large, it is necessary to largely remove the sound absorbing material 22, and the sound absorbing effect is reduced.
  • each sound insulation so that only the cover body (not shown) of each sound insulation cover 31 and 32 is overlapped at the right end portion of the first sound insulation cover 31 and the overlapping portion 33 of the second sound insulation cover 32.
  • the damping material 21 and the sound absorbing material 22 of the covers 31 and 32 are removed.
  • notches 31a and 32a for avoiding interference with the fastener T are formed in the right end portion of the first sound insulation cover 31 and the left end portion of the second sound insulation cover 32, respectively.
  • FIG. 3 shows a modification of the sound insulation cover 41.
  • the sound insulation cover 41 according to this modification includes a side cover 42 and a bottom cover 43 that are integrally formed as a whole.
  • the side cover 42 has basically the same structure as the sound insulation cover 41 shown in FIG. 1, and is attached to the inner surface of the steel plate side cover main body 42A that extends from the upper end of the side surface of the abdomen Rw to the upper end of the bottom surface Rb.
  • the vibration damping resin damping material 51 and the foamed resin sound absorbing material 52 are formed.
  • the bottom cover 43 includes a bottom cover body 43A made of L-shaped steel plate having an upper end connected to the lower end of the side cover body 42A, and a damping resin damping material 53 attached to the upper surface of the horizontal portion.
  • the sound absorbing material 54 is made of foamed resin.
  • the measurement method is as follows. A sleeper span 600mm, 50N rail R is vibrated with pink noise output from a vibration speaker. In order to prevent the influence of the direct sound from the vibration speaker, a microphone was placed at a location 2 m away from the excitation point and 100 mm from the abdomen Rw of the rail R, and the noise level was measured.
  • the soundproofing effect is obtained by subtracting the sound pressure level of the rail R with the cover from the sound pressure level of the bare rail R without the cover on the rail R.
  • FIG. 5 and FIG. 6 show the measurement results.
  • FIG. 5 shows the total sound pressure average value between 400 and 4 kHz
  • FIG. 6 shows the sound pressure for each frequency between 400 and 4 kHz.
  • a is when there is no gap between the covers shown in FIG. 7
  • b is when there is a gap between the covers shown in FIG. 8
  • c is the end of the cover as shown in FIG.
  • d indicates a case where the bottom surface of the rail R is covered with a cover as shown in FIG. 3 in addition to the cover surface of the cover indicated by c.
  • the sound pressure reduction effect is the lowest when there is a gap between the covers.
  • the sound pressure reduction effect is even higher when the bottom surface of the rail R is covered with a cover.
  • the cover body is not limited to a steel plate, but may be a resin.
  • the cover body in the case of abutting between the covers without a gap, there is a possibility that a gap is formed due to thermal contraction of the rail, and in this case, the sound pressure reduction effect may be reduced.
  • FIG. 7 shows the test conditions.
  • FIG. 8 shows measurement data of the noise reduction effect in the laboratory by the resin having the conditions shown in FIG.
  • FIG. 9 shows noise measurement data when an actual train passes using a resin under the same conditions.
  • FIG. 10 shows the result of simulating the sound pressure lowering effect by the above-mentioned various resins from the sound pressure level when passing through the train using the data shown in FIGS. 8 and 9. 8 to 10, it is understood that the soundproofing performance of the sound absorbing material having a bubble diameter of 0.5 to 1 mm of polyethylene resin and a foaming ratio of 30 is good.
  • a notch used as a relief for the fastener may be formed on the construction site by actual matching, or may be formed in advance. According to the actual matching, the sound insulation cover can be applied to the rail without being affected by the change in the pitch of the sleepers. Furthermore, since the sound insulation cover can be prepared without being caught by the notch and the sound insulation cover having a length equal to or greater than the sleeper pitch can be easily used, the workability can be improved.
  • the sound insulation cover carried into the construction site is wound in a roll shape, it becomes easy to handle the roll sound insulation cover.
  • urethane foam or the like may be injected into the gap between the overlapping portion 33 of the sound insulation covers 33 and the rail R (where the sound absorbing material 22 is omitted), and sound absorption is achieved by filling the gap. The effect can be increased.
  • the rail soundproofing device does not require the preparation of a large number of sound insulation covers having different lengths, and is suitable for achieving effective prevention of noise by one type of sound insulation cover having the same length.
  • S1-S3 sleepers 31 First sound insulation cover 32 Second sound insulation cover L Cover length P1, P2 Sleeper pitch R rail

Abstract

L'invention porte sur un dispositif d'isolation sonore pour un rail, éliminant le besoin d'un grand nombre de revêtements d'isolation sonore présentant des longueurs différentes et isolant efficacement du bruit à l'aide d'un type de revêtement d'isolation sonore présentant la même longueur. Trois première à troisième traverses de chemin de fer (S1-S3), sur lesquelles est fixé un rail (R), sont disposées en séquence d'un côté à l'autre côté, dans la direction de la longueur du rail. Un premier revêtement d'isolation sonore (31) est déposé sur les première et deuxième traverses de chemin de fer (S1, S2), et un second revêtement d'isolation sonore (32) est déposé sur les deuxième et troisième traverses de chemin de fer à isolation sonore (S2, S3). La longueur (L) des revêtements d'isolation sonore (31, 32) est fixe, et est déterminée de façon à être supérieure au pas (P1) entre les première et deuxième traverses de chemin de fer (S1, S2) et au pas (P2) entre les deuxième et troisième traverses de chemin de fer (S2, S3). Le premier revêtement d'isolation sonore (31) et le second revêtement d'isolation sonore (32) sont, sur la deuxième traverse de chemin de fer (S2), disposés sur des parties requises de la surface du rail, avec des extrémités en vis-à-vis du premier revêtement d'isolation sonore et du second revêtement d'isolation sonore (32), qui se chevauchent mutuellement sur une largeur requise.
PCT/JP2010/055405 2009-04-03 2010-03-26 Dispositif d'isolation sonore pour rail WO2010113807A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10758579.6A EP2415933B1 (fr) 2009-04-03 2010-03-26 Dispositif d'isolation sonore pour rail
CN2010800029071A CN102187035B (zh) 2009-04-03 2010-03-26 铁轨隔音装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009090649A JP5185877B2 (ja) 2009-04-03 2009-04-03 レールの防音装置
JP2009-090649 2009-04-03

Publications (1)

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WO2010113807A1 true WO2010113807A1 (fr) 2010-10-07

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EP (1) EP2415933B1 (fr)
JP (1) JP5185877B2 (fr)
CN (1) CN102187035B (fr)
WO (1) WO2010113807A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2770107A1 (fr) * 2011-10-17 2014-08-27 Sekisui Chemical Co., Ltd. Dispositif d'isolation antibruit pour rail

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5852477B2 (ja) * 2012-03-07 2016-02-03 積水化学工業株式会社 レールの防音装置
CN103343496B (zh) * 2013-07-10 2016-06-08 铁道第三勘察设计院集团有限公司 一种轨道吸振器
JP6475476B2 (ja) * 2014-11-18 2019-02-27 積水化学工業株式会社 レールの防音装置
DE102016217852B4 (de) 2016-09-19 2018-04-26 Günther Veit Schallisolationsvorrichtung für Schienen und entsprechende Anordnung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036124A1 (de) * 1990-10-29 1992-04-30 Schwartz Heinz Vorrichtung fuer die reduzierung von schallenergie am verkehrssystem rad/schiene
EP1186710A2 (fr) * 2000-09-11 2002-03-13 Johann Resch Amortissement acoustique d'âme de rail
JP2006002442A (ja) * 2004-06-17 2006-01-05 Railway Technical Res Inst レールの防音構造
JP2008063813A (ja) * 2006-09-07 2008-03-21 Sekisui Chem Co Ltd レールの防音装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001354A1 (fr) * 1991-07-11 1993-01-21 Jenbacher Transportsysteme Aktiengesellschaft Dispositif d'insonorisation pour voies ferrees
CN2692194Y (zh) * 2003-12-19 2005-04-13 钱国桢 一种用于道轨的消音套
JP4921833B2 (ja) * 2005-08-30 2012-04-25 積水化学工業株式会社 レールの防音装置
JP4695487B2 (ja) * 2005-10-25 2011-06-08 財団法人鉄道総合技術研究所 レールの防音構造
CN1928235B (zh) * 2006-09-21 2011-02-09 尹学军 减振轨道

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036124A1 (de) * 1990-10-29 1992-04-30 Schwartz Heinz Vorrichtung fuer die reduzierung von schallenergie am verkehrssystem rad/schiene
EP1186710A2 (fr) * 2000-09-11 2002-03-13 Johann Resch Amortissement acoustique d'âme de rail
JP2006002442A (ja) * 2004-06-17 2006-01-05 Railway Technical Res Inst レールの防音構造
JP2008063813A (ja) * 2006-09-07 2008-03-21 Sekisui Chem Co Ltd レールの防音装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2770107A1 (fr) * 2011-10-17 2014-08-27 Sekisui Chemical Co., Ltd. Dispositif d'isolation antibruit pour rail
EP2770107A4 (fr) * 2011-10-17 2015-07-15 Sekisui Chemical Co Ltd Dispositif d'isolation antibruit pour rail

Also Published As

Publication number Publication date
EP2415933B1 (fr) 2017-10-25
EP2415933A4 (fr) 2014-04-02
EP2415933A1 (fr) 2012-02-08
CN102187035A (zh) 2011-09-14
CN102187035B (zh) 2012-12-26
JP2010242337A (ja) 2010-10-28
JP5185877B2 (ja) 2013-04-17

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