EP0833984B1 - Dispositif insonorisant pour rails de chemins de fer - Google Patents

Dispositif insonorisant pour rails de chemins de fer Download PDF

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Publication number
EP0833984B1
EP0833984B1 EP95924190A EP95924190A EP0833984B1 EP 0833984 B1 EP0833984 B1 EP 0833984B1 EP 95924190 A EP95924190 A EP 95924190A EP 95924190 A EP95924190 A EP 95924190A EP 0833984 B1 EP0833984 B1 EP 0833984B1
Authority
EP
European Patent Office
Prior art keywords
section
track
shields
noise
shield
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP95924190A
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German (de)
English (en)
Other versions
EP0833984A1 (fr
Inventor
Allan Dalgaard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Bro AS
DALGAARD ALLEN
Original Assignee
Carl Bro A S
Carl Bro AS
Dalgaard Allen
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 Carl Bro A S, Carl Bro AS, Dalgaard Allen filed Critical Carl Bro A S
Publication of EP0833984A1 publication Critical patent/EP0833984A1/fr
Application granted granted Critical
Publication of EP0833984B1 publication Critical patent/EP0833984B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0023—Details, e.g. foundations
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
    • E01F13/048—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage with obstructing members moving in a translatory motion, e.g. vertical lift barriers, sliding gates
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0035—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with undulated surfaces

Definitions

  • the invention concerns a noise suppression device for railway tracks.
  • the device extends in a direction in parallel with the longitudinal direction of the track and is longitudinally divided into sections, each of which is movable between a first position in which it extends in a substantially vertical direction close to the building gauge of the track, and a second position in which the section is removed from the vicinity of the building gauge and completely or partly concealed.
  • Noise from railway traffic is a great environmental problem in the industrialized world. Many residential and recreational areas are exposed to an unacceptably high noise load from railways. The noise problem concerns many people, as railway tracks cut through urban areas to a great extent.
  • One of the advantages of the railway is precisely that it enables transport from city centre to city centre. Further, the noise nuisances are aggravated, because the railway traffic takes place round the clock at most places and thus affects sleep and rest.
  • Steel shields have been used along the railways to a great extent in recent years. These shields vary in height from about 1 to 2 metres. These may have many different shapes; but a widely used type is shields where horizontal, profiled plates are mounted on steel columns rammed into the ground. Like with several of the other measures, the suppression is just partial, because the noise from the train most remote from the shield passes the shield almost unobstructedly. The height of these shields is limited to the lower edge of the windows in the carriages, which also puts a limit to the effect of the suppression.
  • concrete shields or concrete walls are used, whose height may vary from about 1 metre to several metres. Concrete shields are frequently used where noise shielding of e.g. a residential area is to be carried out on a very limited space. To achieve a noticeable effect, the concrete wall must be very high, and this may give an "enclosed" feeling in the residential area, and in any event there will be no view from the train because of the wall.
  • the gap between train and shield may be as low as 25-30 cm, the distance being several metres for the bigger shields, frequently as high as 25 or 30 metres. At sections with two or more tracks it is moreover possible to place the shields close to each individual track, thereby improving the suppression in these situations.
  • shields of this type provide a quite good suppression of the noise, they are, however, also vitiated by a number of drawbacks.
  • shields of this type make repair and maintenance in or at the track difficult or even impossible, and at winter it may be very difficult to carry out snow clearing, since the snow will settle in the box formed by the shields and thus be very difficult to remove.
  • Another drawback of the known shields is that the shields put a limit to particularly wide special transports, which may be a frequent occurrence on many railway sections.
  • passengers in a train which has to stop on a section with these shields, will have difficulty in leaving the train.
  • the problem of snow clearing may be remedied partly by making the sections spring-loaded so that they can yield to the snow; but this presupposes that they are not hampered by snow on the side to which they are to be moved, and this condition will be fulfilled only rarely in practice.
  • This device moreover has the serious drawback that when the sections are to be pivoted between the two positions, the area passed by a section during this movement must be free. If a section pivots inwards toward the track, it will pivot into the building gauge, and the movement can then be performed only if it is certain that there is no train in the track. Outward pivotal movement from the track can be used only if there is no other track at the side, since the section will then pivot into the building gauge of said track. Therefore, this solution cannot be used on double track lines. Nor will the solution work if snow or another material is present opposite the section, as the pivotal movement will then be prevented.
  • the invention provides a noise suppression which at least opens up the possibility of the same effect as the mentioned shields arranged close to the track, and which also allows repair and maintenance as well as snow clearing to be carried out unobstructedly in the same manner as at tracks which are not provided with noise suppression. Further, the noise suppression of the invention permits wide special transports, and it will also be possible to leave a train unobstructedly like on other railway sections. The noise suppression may moreover be used without the above-mentioned problems in double track and multi-track railway sections, and it does not interfere with the building gauge of the track when it moves between its two extreme positions.
  • each section comprises means to move it between the two positions in a substantially vertical direction, and these means are adapted to be remote-controlled.
  • each section comprises means to move it between the two positions in a substantially vertical direction, and these means are adapted to be remote-controlled.
  • the sections are adapted to move between the two positions in substantially a vertical direction, it is ensured that they keep clear of the building gauge of the track or possible adjacent tracks during the movement, and the movement will not be prevented by snow or anything that might be present at the side of the device. This is important in particular when the sections are adapted for remote control, as is the case here.
  • the sections may be operated locally, it is ensured that just one or a few shields are to be "removed” locally for minor repairs.
  • the concealed position is a state of rest and the movement means are adapted to move the section to this state of rest in case of an error or missing control, it is ensured that the concealed state will be the safe state which the noise suppression automatically assumes in case of an error, so that it is no longer possible to operate the shields by means of remote control.
  • the sections may moreover be adapted to be placed in intermediate positions, so that the shields may be adjusted to several different heights.
  • the shields may e.g. be lowered so that a wide special transport can pass, while maintaining some noise suppression.
  • the noise suppression may be improved by constructing the surface such that they will suppress noise. This may be done by means of a sound reflecting surface, as stated in claim 5, or by means of a sound absorbing surface as stated in claim 6.
  • a preferred embodiment is defined in claim 7 and comprises two columns between which a collapsible shield is arranged.
  • the shield is just to be collapsed to make it assume the concealed state.
  • a particularly advantageous embodiment is obtained, as stated in claim 8, by adapting the collapsible shield to be collapsed and extended in a vertical direction.
  • Claim 9 defines a particularly elegant solution where the upper edge of the shield is shaped so as to conceal the rest of the collapsible shield in the concealed position.
  • Fig. 1 shows a cross-section of a railway line in which rails 1, 2 are laid on sleepers 3 which are in turn laid in ballast 4.
  • the track includes a building gauge 5, which indicates the area where fixed equipment mounted along the railway may not be present.
  • a locomotive 6 running on the rails 1, 2 is shown by way of example. It will be seen that the locomotive keeps within the shown building gauge 5.
  • Noise suppression shields 7, 8 are mounted at the side of the track, and each of shields is placed in the ballast 4 by means of foundations 9, 10.
  • the noise suppression shields 7, 8 are outside the building gauge 5. It will also be seen that the two shields 7, 8 form a "box" around the track, it being difficult to clear snow in the winter if the shields 7, 8 cannot be removed or concealed.
  • FIGs. 2, 3 and 4 show in greater detail how a noise suppression of the invention may be constructed.
  • a section of the noise suppression 7 consists of a set of guide columns 11, which are connected with a longitudinal box 12 containing a drive motor 13 and a transmission 14.
  • a collapsible shield 15 is suspended between the two guide columns 11, said shield forming the actual noise suppression element in the extended state shown in fig. 2.
  • the shield 10 In its collapsed state, as shown in fig. 3, the shield 10 is just about 10 cm high. In the collapsed state, the shield lies on top of the box 12, which, in turn, is placed on the foundation 9.
  • Embodiments are also conceivable wherein the box 12 is recessed so much into the foundation 9 and the ballast 4 that the collapsed shield is present below rail height.
  • noise suppression shield may e.g. be 420 cm long and about 110 cm high measured over the rails. Where the building gauge does not allow this height, e.g. between two tracks on a double track line, a lower shield is used.
  • the foundation 9 may consist of steel profiles which are rammed into the ground and whose upper end is secured laterally by means of steel profiles secured to the lower edges of the rail. These foundations must be mounted very precisely, and since they are to transfer big forces, the requirements to be satisfied in this job will be quite great.
  • the upper end of each foundation will have thereon a mounting shoe permitting very quick mounting of the elements, and exchange of a damaged element can take place just as quickly.
  • the guide columns 11 are dimensioned for the loads from high speed trains. They contain e.g. a chain drive which can raise and lower the shield. Other mechanisms are also conceivable for this purpose, e.g. spindles, hydraulics, pneumatics, racks, wires and the like.
  • the control columns may either be stationary, or they may be adapted to be lowered or put down.
  • the shield itself consists of a suitable number of steel slats which are hinged together. In the extended state, the slats constitute a strong unit whose strength may be compared to the known steel profile plates.
  • a pin is secured at the ends of each slat and serves to transfer the load from the shield to the columns. The pins also form part of the raising and lowering mechanism.
  • the steel slats may be treated with a soft surface coating having a sound absorbing effect.
  • a rubber material or the like e.g. pulverized used car tires, may be used.
  • the surface may also be shaped so that it has a sound reflecting effect and reflects the sound in a desired direction.
  • the motor 13 with associated transmission 14 is mounted in the box 12, as mentioned.
  • the motor 13 may be a relatively small electric motor.
  • a motor of modest size may be used, because it has no importance whether the transmission is to be very big. It does not matter whether it takes several minutes to lower or raise a shield.
  • hydraulics, pneumatics or the like may be used as alternatives to small electric motors.
  • a large number of connected elements e.g. up to 50 or 100
  • each section may be operated manually on the spot, which will be required, e.g. when maintenance work is performed on the track.
  • Figs. 5A-J show a plurality of alternative embodiments of a noise suppression shield of the invention.
  • Fig. 5A shows an inverse "roll-up door", which is pulled up between two guide columns which correspond to the columns in the embodiment described above.
  • the modular length of this embodiment may also be of the same order as the one described above.
  • Fig. 5B shows a solution similar to fig. 5A, but turned up side down that the "door” is protected against the weather in a box, which may optionally also be movable in a vertical direction.
  • Fig. 5C shows a solution using steel elements with hinges which only have a height of 5-8 cm in the recessed position.
  • Fig. 5D shows long U-shaped steel panels which may be lowered telescopically right down to ground level.
  • the modular length is 4-5 metres.
  • Fig. 5E also shows 4-5 metre long "planks", which are automatically stacked horizontally when snow clearing or work on the rails is necessary, but which form a shield, as described before, when they are stacked vertically.
  • Fig. 5F shows a corresponding solution, but since the structure will be weaker, the length of the modules will be correspondingly shorter.
  • Fig. 5G is again a "plank solution”, and the elements are stored horizontally here when they are not in use.
  • Figs. 5H and I show a solution using a combination of air cushions and horizontal steel braces.
  • the system may be a low-pressure air system which, like an inflated mini-hall, may be kept up by a small ventilator.
  • the system is shown in the active, i.e. sound absorbing position in fig. 5H, while it is shown in the collapsed or "punctured" version in fig. 5I.
  • fig. 5J shows a version with the same basic idea as figs. 5H and I.
  • the broad shape is contemplated as a reinforcement, which makes the vertical columns unnecessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Railway Tracks (AREA)
  • Piles And Underground Anchors (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Claims (11)

  1. Dispositif de suppression de bruit (7, 8) pour voies ferrées, ledit dispositif s'étendant dans une direction parallèle à la direction longitudinale de la voie et étant divisé longitudinalement en sections, chacune d'entre elles pouvant se déplacer entre une première position dans laquelle elle s'étend dans une direction sensiblement verticale proche de l'écartement de construction de la voie et une seconde position dans laquelle la section est retirée du voisinage de l'écartement de construction et complètement ou partiellement dissimulée, caractérisé en ce que chaque section comprend des moyens (13, 14) pour la déplacer entre les deux positions dans une direction sensiblement verticale et en ce que ces moyens peuvent être télécommandés.
  2. Dispositif selon la revendication 1, caractérisé en ce que lesdits moyens (13, 14) pour déplacer une section entre les deux positions peuvent être en outre manoeuvrés localement.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que ladite seconde position est un état de repos et en ce que lesdits moyens (13, 14) sont à même de déplacer la section dans cet état de repos dans le cas d'une erreur ou d'une absence de commande.
  4. Dispositif selon les revendications 1 à 3, caractérisé en ce que chaque section peut en outre être placée dans des positions intermédiaires entre lesdites deux positions.
  5. Dispositif selon les revendications 1 à 4, caractérisé en ce que le dispositif comprend une surface réfléchissant le son.
  6. Dispositif selon les revendications 1 à 4, caractérisé en ce que le dispositif comprend une surface absorbant le son.
  7. Dispositif selon les revendications 1 à 6, caractérisé en ce que chaque section comprend deux colonnes de guidage (11) agencées aux extrémités respectives de la section et un écran télescopique (15) agencé entre les colonnes.
  8. Dispositif selon la revendication 7, caractérisé en ce que l'écran télescopique (15) est à même de se replier et de se déployer dans une direction verticale.
  9. Dispositif selon la revendication 8, caractérisé en ce que, sur son bord supérieur, l'écran télescopique a un recouvrement qui dissimule le reste de l'écran télescopique dans ladite seconde position.
  10. Dispositif selon les revendications 7 à 9, caractérisé en ce que, dans la position dans laquelle la section est complètement ou partiellement dissimulée, les colonnes de guidage (11) sont à même de se déplacer entre une position verticale et une position horizontale.
  11. Dispositif selon les revendications 7 à 9, caractérisé en ce que, dans la position dans laquelle la section est complètement ou partiellement dissimulée, les colonnes de guidage (11) sont à même de se déplacer vers le bas dans une direction verticale vers une position complètement ou partiellement située en dessous du niveau du sol.
EP95924190A 1995-06-07 1995-06-07 Dispositif insonorisant pour rails de chemins de fer Expired - Lifetime EP0833984B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DK1995/000225 WO1996041055A1 (fr) 1995-06-07 1995-06-07 Dispositif insonorisant pour rails de chemins de fer

Publications (2)

Publication Number Publication Date
EP0833984A1 EP0833984A1 (fr) 1998-04-08
EP0833984B1 true EP0833984B1 (fr) 2000-10-18

Family

ID=8155216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95924190A Expired - Lifetime EP0833984B1 (fr) 1995-06-07 1995-06-07 Dispositif insonorisant pour rails de chemins de fer

Country Status (5)

Country Link
EP (1) EP0833984B1 (fr)
AT (1) ATE197074T1 (fr)
AU (1) AU2880095A (fr)
DE (1) DE69519176T2 (fr)
WO (1) WO1996041055A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008002836A1 (de) 2008-04-30 2009-11-05 Msb-Management Gmbh Niedrige Lärmschutzwand an Gleisen

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008173C2 (nl) * 1998-01-30 1999-08-02 Hoogovens Staal Bv Systeem voor het dragen van bovengrondse voorzieningen ten behoeve van railtransportmiddelen.
GB2434482A (en) * 2006-01-18 2007-07-25 Gordon James Harris Angular sound baffle
EP2543766B1 (fr) 2011-07-07 2017-03-29 Wittfeld GmbH Mur de protection pour voies de circulation
DE202014009790U1 (de) * 2014-12-12 2016-03-15 Wilfried Straka Schallschutzwand zur temporären Reduzierung von Schallemissionen
NL2015722B1 (en) * 2015-11-04 2017-05-24 Univ Delft Tech Barrier
US11136734B2 (en) * 2017-09-21 2021-10-05 The Regents Of The University Of Michigan Origami sonic barrier for traffic noise mitigation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007539A (en) * 1957-10-04 1961-11-07 Reeves Bros Inc Sound shield
SE351250B (fr) * 1972-01-21 1972-11-20 Gullfiber Ab
DE2401432A1 (de) * 1974-01-12 1975-07-31 Heinz Hoelter Schall-isolierwaende
AT372435B (de) * 1980-12-30 1983-10-10 Schwarz Gerhard Schallschutzvorrichtung
DE4033058A1 (de) * 1990-10-18 1992-04-23 Koch Marmorit Gmbh Vorgefertigte schallschutzelemente
DK171318B1 (da) * 1993-12-07 1996-09-02 Allan Dalgaard Indretning til støjdæmpning for jernbanespor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008002836A1 (de) 2008-04-30 2009-11-05 Msb-Management Gmbh Niedrige Lärmschutzwand an Gleisen

Also Published As

Publication number Publication date
DE69519176D1 (de) 2000-11-23
DE69519176T2 (de) 2001-03-01
EP0833984A1 (fr) 1998-04-08
AU2880095A (en) 1996-12-30
WO1996041055A1 (fr) 1996-12-19
ATE197074T1 (de) 2000-11-15

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