EP2692949B1 - Low height noise barrier wall along a railway track and noise barrier wall element for forming such a noise barrier wall - Google Patents
Low height noise barrier wall along a railway track and noise barrier wall element for forming such a noise barrier wall Download PDFInfo
- Publication number
- EP2692949B1 EP2692949B1 EP13003593.4A EP13003593A EP2692949B1 EP 2692949 B1 EP2692949 B1 EP 2692949B1 EP 13003593 A EP13003593 A EP 13003593A EP 2692949 B1 EP2692949 B1 EP 2692949B1
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- European Patent Office
- Prior art keywords
- noise barrier
- barrier wall
- ribs
- wall element
- noise
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-
- 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
- E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
- E01F8/0052—Grate-style, e.g. as wall facing
Definitions
- Another, not according to the invention according to principle B. provides not only the sound, but also the sound-carrying (phonon-containing) medium together with the sound (phonons) therein during the passage of the train to a considerable extent (with an average speed of more than 0.1 meters per second perpendicular to the noise barrier) penetrate into the noise protection wall element to absorb the sound inside the noise barrier element for the greater part (greater than 90%) and then let it escape again.
- a part of the sound wave is transported together with the sound wave carrying medium air into the noise barrier wall element.
- the Fig. 2 shows a section along the line II-II in Fig. 1 ,
- the plate 2 is shown as cast from a concrete component.
- a coarse-pored concrete into consideration, since this material is sound-absorbing and has a lower, specific weight.
- the plate 2 and the ribs 3 may be made in one piece.
- As a further material for the plate 2 come (preferably sound-absorbing coated) sheets of steel or aluminum into consideration or preferably a noise-insulating coated wood or plastic construction.
- the ribs 3 are orthogonal from a track plane facing the track body 5 of the plate 2, wherein the ribs 3 are each provided at equal intervals A to the next rib.
- the angle ⁇ is chosen so that the generated by the passing in the direction of arrow F rail vehicle 13 generated air flow without significant deflection in the air channels 17 between the guide plates 16 can occur.
- the angle ⁇ 15 ° but there are also angles in the range between 5 ° and 40 °, preferably between 7 ° and 25 ° possible to achieve the desired effect of the sound reduction.
- the plate 14 need not necessarily be perpendicular, but may also occupy an angle of 0 ° to 30 ° to the ground, preferably then inclined in the direction of the rail.
- the baffles do not have to be flat either. In this case, the angle ⁇ varies depending on the distance to the plate 14. The angle ⁇ is then the angle between the tangents to the curved guide plate 16 and the plate 14th
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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)
Description
Die Erfindung betrifft ein niedriges Lärmschutzwandelement neben einem Schienenweg der im Oberbegriff des Anspruchs 1 angegebenen Gattung sowie eine Lärmschutzwand, bestehend aus solchen Elementen.The invention relates to a low noise barrier wall element in addition to a track of the type specified in the preamble of claim 1 and a noise barrier, consisting of such elements.
Der Betrieb von Schienenfahrzeugen auf Eisenbahnstrecken verursacht eine erhebliche Schallemission, die im Wesentlichen von der Art und der Geschwindigkeit der Schienenfahrzeuge abhängt. Um diese Schallemission nicht ungehindert in die der Gleisanlage benachbarten Bereiche treten zu lassen, werden bereits seit vielen Jahren Lärmschutzwände vorgesehen, die unterschiedliche Strukturen, Abmessungen und Abstände zum Gleis haben.The operation of rail vehicles on railway lines causes significant noise emissions, which essentially depend on the nature and speed of the rolling stock. In order not to allow this noise emission to pass unimpeded into the areas adjacent to the track system, noise protection walls have been provided for many years, which have different structures, dimensions and distances to the track.
Bezüglich der Struktur der Lärmschutzwände gibt es mehrere Vorschläge, durch eine offenporige Absorptionsschicht in der Lärmschutzwand den Schall zu reduzieren. Ein Wandelement für eine Lärmschutzwand dieser Art ist in
Niedrige Lärmschutzwände befinden sich möglichst dicht neben Schienenwegen, ohne aber in das sogenannte Lichtraumprofil hineinzureichen, welches eine strenge Vorgabe der Eisenbahnbehörden darstellt. Dadurch gelangt nur wenig Schall aus dem Gleisbereich durch den verbliebenen Spalt zwischen Lärmschutzwand und durchfahrendem Zug hindurch ins Freie. Eine solche niedrige Schallschutzwand ist beispielsweise in der
Die
Die
Die
Der Erfindung liegt die Aufgabe zugrunde, eine niedrige Lärmschutzwand zu schaffen, durch die der Schallschutz verbessert wird. Außerdem soll ein Lärmschutzwandelement zur Bildung einer solchen Lärmschutzwand angegeben werden.The invention has for its object to provide a low noise barrier, through which the sound insulation is improved. In addition, a noise protection wall element to form such a noise barrier should be specified.
Diese Aufgaben werden durch ein Lärmschutzwandelement mit den Merkmalen des Anspruchs 1 und durch eine Lärmschutzwand mit den Merkmalen des Anspruchs 9 gelöst.These objects are achieved by a noise barrier wall element having the features of claim 1 and by a noise barrier having the features of
Grundlegender Gedanke ist es, die durch den Zug mitbewegte Luft zur Schallminderung heranzuziehen. Dies kann durch
- A.) eine gezielte Lenkung dieses Luftstroms in eine bestimmte Richtung oder
- B.) Vielfachreflexion des Schalls an Strukturen im bewegten Luftstrom erreicht werden.
- C.) eine Anpassung der Oberfläche der Lärmschutzwand an die Schallausbreitungsrichtung, die sich aus der vektoriellen Addition der Schallgeschwindigkeit und der durch den fahrenden Zug verursachten Luftströmungsgeschwindigkeit ergibt, erfolgen.
- A.) a targeted steering of this air flow in a particular direction or
- B.) multiple reflection of the sound to structures in the moving air flow can be achieved.
- C.) an adaptation of the surface of the noise protection wall to the sound propagation direction, which results from the vectorial addition of the speed of sound and the air flow velocity caused by the moving train.
Erfindungsgemäß ist vorgesehen, die dem Gleiskörper zugewandte Oberfläche der Lärmschutzwände mit Strukturen zu versehen, die dazu führen, dass ein an der Lärmschutzwand dicht vorbeifahrender Zug in einem spaltförmigen Raum zwischen Zug und Lärmschutzwand eine Luftströmung erzeugt, die nach unten in den Spalt hineingerichtet ist. Der Spalt stellt dann eine Saugöffnung dar, die das Austreten von Schall durch den Spalt nach oben reduziert. Dies ist ein dynamischer Effekt, der direkt von der abwärts gerichteten Geschwindigkeit der Luft im Spalt und indirekt von der Geschwindigkeit des an der Lärmschutzwand vorbeifahrenden Zuges als Funktion der Struktur der Lärmschutzwand abhängt.It is provided according to the invention to provide the surface of the noise protection walls facing the track body with structures which cause a train passing close to the noise protection wall to generate an air flow in a gap-shaped space between the train and the noise protection wall, which is directed downwards into the gap. The gap then presents a suction opening which reduces the escape of sound up the gap. This is a dynamic effect that depends directly on the downward velocity of the air in the gap and indirectly on the speed of the train passing the noise barrier as a function of the structure of the noise barrier.
Hierzu ist ein schräg in Fahrtrichtung des Zuges nach unten geneigtes Luftleitprofil auf der Oberfläche des Lärmschutzwandelements vorgesehen. Dieses durch Rippen gebildete Profil zwingt die mit dem vorbeifahrenden Zug mitgerissene Luft zu einer schräg nach unten gerichteten Abwärtsbewegung und führt damit zu einer Saugwirkung im Spalt zwischen Lärmschutzwand und Zug. Vorteilhaft ist eine Tiefe des Profils, die in der Größenordnung des Abstandes zwischen Lärmschutzwand und Zugwand liegt, um hinreichend großen Luftmassen eine ausreichende Abwärtsgeschwindigkeit zu erteilen.For this purpose, an obliquely inclined in the direction of travel of the train downward air guide profile is provided on the surface of the noise protection wall element. This profile formed by ribs forces the entrained with the passing train air to an obliquely downward downward movement and thus leads to a suction effect in the gap between the noise barrier and train. Advantageously, a depth of the profile, which is in the order of magnitude of the distance between the noise protection wall and the draft wall to give sufficiently large air masses a sufficient downward speed.
Die Rippenprofile sind bevorzugt zur oberen Kante der Lärmschutzwand hin durch eine dort befindliche Leiste geschlossen, um einen Schallaustritt dort zu verhindern.The rib profiles are preferably closed to the upper edge of the noise barrier by a bar located there to prevent sound leakage there.
In erster Näherung erhält eine zwischen einem Zug und einer unprofilierten Lärmschutzwand befindliche Luftmasse in Fahrtrichtung des Zuges im Durchschnitt ungefähr die halbe Geschwindigkeit des Zuges. Das Rippenprofil der erfindungsgemäßen Lärmschutzwand verringert diese Geschwindigkeit allerdings etwas durch seinen Luftwiderstand. Zudem lenkt es die Richtung der Geschwindigkeit nach unten um. Die abwärts gerichtete Komponente dieser Geschwindigkeit ist vom Neigungswinkel des Rippenprofils abhängig. Ein flacherer Neigungswinkel lässt eine größere Gesamtluftmenge in Bewegung setzen als ein steilerer Winkel, der die Horizontalbewegung stärker behindert. Dafür erzeugt ein steilerer Winkel aber eine größere Vertikalkomponente der Geschwindigkeit. Erfindungsgemäß ist ein Winkel von 30° bis 45° vorgesehen, der bei noch guter Vorwärtsbewegung von Luftmassen eine starke Vertikalkomponente der Luft erzeugt. Bei vollständiger Umleitung der beschleunigten Luftmassen wäre im Falle von 45° in diesem Falle die Abwärtskomponente der Geschwindigkeit dann ungefähr so groß wie die Horizontalkomponente.As a first approximation, an air mass located between a train and an unprofiled noise protection wall in the direction of travel of the train receives on average approximately half the speed of the train. However, the rib profile of the noise protection wall according to the invention reduces this speed somewhat by its air resistance. It also redirects the direction of the speed down. The downward component of this speed depends on the angle of inclination of the rib profile. A flatter angle of inclination allows a greater total amount of air to be set in motion than a steeper angle, which hinders the horizontal movement more. But a steeper angle creates a larger vertical component of velocity. According to the invention an angle of 30 ° to 45 ° is provided, which generates a strong vertical component of the air with still good forward movement of air masses. With complete diversion of the accelerated air masses, in the case of 45 ° in this case, the downward component of the velocity would then be about as large as the horizontal component.
Die nicht erfindungsgemäßen flachen Winkel, zum Beispiel 2°, wirken vor allem aufgrund des Prinzips C.) (wie später noch näher erläutert wird).The non-inventive flat angle, for example, 2 °, act mainly due to the principle C.) (as will be explained later).
Da eine Vermischung der innerhalb des Rippenprofils strömenden Luft mit Luft außerhalb des Rippenprofils (mit Luft zwischen Lärmschutzwand und Zug) stattfindet, reduziert sich diese Vertikalkomponente der Geschwindigkeit weiter. Näherungsweise kann man von einer Reduzierung um ein Verhältnis von f = VProfil/(VProfil +Vleer) ausgehen, wobei VProfil das Volumen zwischen den Leitwänden der Rippen und der Fläche der dazwischen liegenden Plattenebene ist, aus der die Rippen herausragen, und Vleer das Volumen zwischen Zug und Lärmschutzwand. Beträgt die Rippenhöhe zum Beispiel die Hälfte des Abstandes der Lärmschutzwand, d.h. der Profiloberkante zum Zug, so beträgt das oben angegebene Verhältnis f bei schmalen Rippen ungefähr ein Drittel (weil dann VProfil ungefähr proportional zur Rippenhöhe wird). Die abwärts gerichtete Geschwindigkeitskomponente beträgt dann ungefähr ein Drittel der horizontalen durchschnittlichen Luftgeschwindigkeit, die ohne Luftleitprofile zwischen Zug und Lärmschutzwand aufträte und damit - wieder sehr näherungsweise - ein Sechstel der Zuggeschwindigkeit. Ein Zug, der mit 30 Metern pro Sekunde an einer Lärmschutzwand mit einem um 45° geneigten Profil vorüberführe, erzeugte demnach im Luftspalt einen abwärts gerichteten Sog, der eine Vertikalgeschwindigkeitskomponente von ungefähr 5 Metern pro Sekunde aufwiese.Since mixing of the air flowing inside the rib profile takes place with air outside the rib profile (with air between the noise barrier and the train), this vertical component of the velocity is further reduced. Approximately one can assume a reduction by a ratio of f = V profile / (V profile + V empty ), where V profile is the volume between the baffles of the ribs and the surface of the intermediate plate plane from which the ribs protrude, and V empty the volume between train and noise barrier. If the rib height is, for example, half the distance of the noise protection wall, ie the profile top edge to the train, then the ratio f given above for narrow ribs is approximately one third (because then V profile becomes approximately proportional to the rib height). The downward velocity component then amounts to approximately one third of the horizontal average airspeed, which occurred without air-conduction profiles between the train and the noise protection wall and thus - again very approximately - one-sixth of the train speed. A train passing at 30 meters per second on a noise barrier with a 45 degree inclined profile thus created a downward suction in the air gap that had a vertical velocity component of approximately 5 meters per second.
Die Leitelemente stellen im einfachsten Fall schmale aus der Plattenebene des Lärmschutzwandelements herausragende Rippen dar. Vorzugsweise bestehen diese Rippen aus einem schallabsorbierenden Material. Die Oberfläche der Rippen kann auch bezogen auf die Plattenebene des Lärmschutzwandelements geneigt oder gekrümmt ausgeführt sein, wodurch eine noch etwas verbesserte Luftleitgeschwindigkeit erzielt werden kann. Der Abstand der Luftleitprofile voneinander ist abhängig von deren Höhe, mit der sie aus der Plattenebene des Lärmschutzwandelements herausragen. Damit die vom Zug bewegte Luft bis in die Tiefe der Luftkanäle eindringt, ist der Abstand der Profile voneinander bevorzugt etwa gleich der Höhe der Profile oder größer.In the simplest case, the guide elements are narrow ribs protruding from the plane of the plate of the noise protection wall element. These ribs preferably consist of a sound-absorbing material. The surface of the ribs may also be inclined or curved with respect to the plane of the sound barrier wall element, whereby a somewhat improved air conduction velocity can be achieved. The distance between the Luftleitprofile is dependent on the height at which they protrude from the plane of the noise protection wall element. So that the air moved by the train penetrates to the depth of the air ducts, the distance of the profiles from each other is preferably approximately equal to the height of the profiles or larger.
Mit aerodynamischer Ausgestaltung sind Formen gemeint, die keine scharfen Kurven aufweisen, die der gewünschten Luftströmung in den Saugkanälen entgegenstehen. Der Querschnitt durch einen Saugkanal muss dabei nicht rechteckig oder parallelogrammförmig sein, sondern kann gerundet sein. Insbesondere können die Rippen zu ihrem Fuß auf der Plattenebene hin geradlinig oder in einem Bogen geschwungen dicker werden. Der Saugkanal kann auch im Querschnitt die Form eines nach unten offenen Firstdachziegels haben. Die Luft strömt in diesem "Halbrohr" entlang und Schall, der von unten in dieses "Halbrohr" eintritt, wird dann reflektiert und absorbiert, vor allem, wenn die Innenwandung des "Halbrohres" aus schallabsorbierendem Material besteht. Auch muss die Höhe der Rippen nicht konstant sein, sondern kann sich von der Oberkante der Lärmschutzwand nach unten ändern.With aerodynamic design forms are meant that have no sharp curves that oppose the desired air flow in the suction channels. The cross section through a suction channel does not have to be rectangular or parallelogram-shaped, but may be rounded. In particular, the ribs may become thicker toward their foot on the plate plane in a straight line or curved in an arc. The suction channel can also have the shape of a downwardly open ridge roof tile in cross section. The air flows in this "half pipe" and sound entering from below into this "half pipe" is then reflected and absorbed, especially when the inner wall of the "half pipe" is made of sound absorbing material. Also, the height of the ribs does not have to be constant, but may change from the top of the noise barrier downwards.
Eine andere, nicht erfindungsgemäße gemäß Wirkprinzip B.) sieht vor, nicht nur den Schall, sondern auch das schalltragende (phononenhaltige) Medium mitsamt dem darin befindlichen Schall (Phononen) während des Vorbeifahrens des Zuges in erheblichem Ausmaße (mit einer durchschnittlichen Geschwindigkeit von mehr als 0,1 Metern pro Sekunde senkrecht zur Lärmschutzwand) in das Lärmschutzwandelement eindringen, den Schall im Inneren des Lärmschutzwandelementes zum allergrößten Teil (größer als 90 %) zu absorbieren und dann erst wieder austreten zu lassen. Eine Schallwelle, die von unten kommt, kann dann den Spalt zwischen Lärmschutzwand und Zug nur teilweise nach oben verlassen. Ein Teil der Schallwelle wird mitsamt dem die Schallwelle tragenden Medium Luft in das Lärmschutzwandelement transportiert. Gemäß einer bevorzugten Ausgestaltung der Lärmschutzwand sind die Luftleitelemente an den Platten derart gestaltet, dass sich die Kontur der Luftleitelemente aneinanderstoßender Platten ergänzt. Die Luftleitelemente können aus (Poren-) beton, Kunststoff- oder Metallstreifen bestehen, die an der Platte vorzugsweise angeklebt, angenietet oder angeschraubt sind.Another, not according to the invention according to principle B.) provides not only the sound, but also the sound-carrying (phonon-containing) medium together with the sound (phonons) therein during the passage of the train to a considerable extent (with an average speed of more than 0.1 meters per second perpendicular to the noise barrier) penetrate into the noise protection wall element to absorb the sound inside the noise barrier element for the greater part (greater than 90%) and then let it escape again. A sound wave that comes from below, then can only partially upwards leave the gap between the noise barrier and the train. A part of the sound wave is transported together with the sound wave carrying medium air into the noise barrier wall element. According to a preferred embodiment of the noise protection wall, the air guide elements are designed on the plates in such a way that the contour of the air guide elements adjoins abutting plates. The air guide elements may consist of (pore) concrete, plastic or metal strips which are preferably glued to the plate, riveted or screwed.
Die Luftleitelemente sind bevorzugt schallabsorbierend ausgestaltet, zum Beispiel aus Schallabsorptionsmaterial bestehend, damit beschichtet oder an der Oberfläche gelocht und damit gefüllt. Eine andere, nicht erfindungsgemäße Variante sieht an Stelle der zuvor beschriebenen Leitplatten beidseitig offene Rohre vor, die in einem spitzen Winkel zwischen 5° und 40°, vorzugsweise zwischen 7° und 25° zur Längsrichtung der Lärmschutzwand vor der Platte angeordnet sind. Die Rohre liegen dicht an dicht, sozusagen als schräges Rohrbündel. Der Durchmesser der Rohre darf nicht zu klein sein, da die Strömungsluft in die Rohre ohne großen Reibungswiderstand eindringen und an der Rückseite wieder austreten können muss. Die Dimensionierung lässt sich mit dem Hagen-Poisseuile-Gesetz abschätzen. Rohrdurchmesser zwischen 1 und 10 Zentimetern sind sinnvoll. Die Rohre können horizontal verlaufen oder eine Neigung bis zu 30° nach unten aufweisen. Die dem Gleis zugewandten Öffnungen der Rohre können so abgeschrägt sein, dass dort eine glatte Gesamtfläche des Lärmschutzwandelementes entsteht.The air guide elements are preferably designed sound-absorbing, for example, consisting of sound absorbing material, so coated or perforated on the surface and filled with it. Another variant not according to the invention provides, instead of the guide plates described above, tubes which are open on both sides and are arranged at an acute angle between 5 ° and 40 °, preferably between 7 ° and 25 °, to the longitudinal direction of the noise protection wall in front of the plate. The tubes are close together, so to speak as an oblique tube bundle. The diameter of the pipes must not be too small, because the flow air must penetrate into the pipes without great frictional resistance and must be able to escape at the back. The dimensioning can be estimated with the Hagen-Poisseuile-law. Pipe diameters between 1 and 10 centimeters are useful. The pipes may be horizontal or inclined down to 30 °. The openings of the tubes facing the track can be chamfered in such a way that a smooth overall surface of the noise protection wall element is formed there.
Ausführungsbeispiele der Erfindung sind nachstehend anhand der Zeichnung näher erläutert. In der Zeichnung zeigt:
- Fig. 1
- eine perspektivische Ansicht eines Lärmschutzwandelements nach Wirkprinzip A.),
- Fig. 2
- einen Horizontalschnitt durch das Lärmschutzwandelement entlang der Linie II-II in
Fig. 1 - Fig. 3
- eine Ansicht zweier aufeinanderfolgender Lärmschutzwandelemente mit bogenförmigen Leitelementen,
- Fig. 4
- einen Horizontalschnitt durch eine Ausführungsvariante eines Lärmschutzwandelements nach Wirkprinzip B.),
- Fig. 5
- eine Ansicht des Lärmschutzwandelements in Richtung der Pfeile V in
Fig. 4 .
- Fig. 1
- a perspective view of a noise barrier element according to operating principle A.),
- Fig. 2
- a horizontal section through the noise barrier wall element along the line II-II in
Fig. 1 - Fig. 3
- a view of two successive noise barrier elements with arcuate vanes,
- Fig. 4
- a horizontal section through an embodiment of a noise barrier element according to principle B.),
- Fig. 5
- a view of the noise barrier element in the direction of arrows V in
Fig. 4 ,
In
Die
Die
Die
Die
Claims (10)
- Noise barrier wall element for a low noise barrier wall (10) beside a railway track, wherein the noise barrier wall element (1, 6, 7, 12) comprises a panel (2, 8, 14) which can be assembled vertically or inclined at an angle of between 0° and 30° against the vertical beside the railway track, wherein, on the side of the panel (2, 8, 14) facing towards the railway track, air guiding elements are provided which are arranged at an angle (α, β) relative to the longitudinal direction of the panel (2, 8, 14), and wherein the air guiding elements are designed as ribs (3, 9) which form air ducts (17) between them at a distance (A), wherein the ribs (3) extend in a straight line,
characterised in that the ribs, in the assembled state of the noise barrier wall element, are downwardly inclined relative to the horizontal, as seen in the direction of travel (F), at an angle (α) of between 30° and 45°. - Noise barrier wall element according to claim 1,
characterised in that a strip (4, 11, 19) is arranged along an upper edge of the panel (2, 8, 14), the strip (4, 11, 19) protruding at a panel plane (5, 15) towards the railway track. - Noise barrier wall element according to claim 1 or 2,
characterised in that the ribs (9) and / or the panel (2, 8, 14) and / or the strip (4, 11, 19) are made of a noise absorbing material at least on their surface. - Noise barrier wall element according to one of claims 1 to 3,
characterised in that the panel (2, 8) is designed integrally with the ribs (3, 9) and the noise barrier wall element is made in particular of a large-pore concrete. - Noise barrier wall element according to one of claims 1 to 4,
characterised in that the ribs (3, 9) are made of plastic or metal strips which are preferably stuck, riveted or screwed to the panel (2, 8). - Noise barrier wall element according to one of claims 1 to 5,
characterised in that the distance (A) between the ribs (3) ≥ a height (H) of the ribs (3). - Noise barrier wall element according to one of claims 2 to 6,
characterised in that the upper ends of the air guiding elements are connected to the strip (4, 11, 19) so that the air ducts (17) are closed at the top. - Noise barrier wall element according to one of claims 1 to 7,
characterised in that the panel (2, 6, 7, 14) is provided on the side facing towards the railway track and thus at the panel plane (5, 15) with a noise absorbing material. - Low noise barrier wall beside a railway track, wherein the noise barrier wall (10) is arranged directly beside a predefined clearance gauge,
characterised in that the noise barrier wall (10) is composed of noise barrier wall elements according to at least one of claims 1 to 8 being linearly lined up one beside the other, parallel to the railway track. - Noise barrier wall according to claim 9,
characterised in that the air guiding elements on the panels (2, 8, 14) are designed in such a way that the contour of the air guiding elements of panels adjacent to each other is supplemented in the assembled noise barrier wall.
Applications Claiming Priority (1)
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DE102012107119 | 2012-08-02 |
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EP2692949A1 EP2692949A1 (en) | 2014-02-05 |
EP2692949B1 true EP2692949B1 (en) | 2016-12-07 |
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EP13003593.4A Not-in-force EP2692949B1 (en) | 2012-08-02 | 2013-07-17 | Low height noise barrier wall along a railway track and noise barrier wall element for forming such a noise barrier wall |
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CN110070850B (en) * | 2019-03-26 | 2024-05-31 | 同济大学 | Streamline flow-through type obstacle deflector and application thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2697040A1 (en) * | 1992-10-21 | 1994-04-22 | Ind Entreprise | Protection element against noise and its use. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2936776C2 (en) * | 1979-09-12 | 1984-01-12 | G.A. Pfleiderer GmbH & Co KG, 8430 Neumarkt | Noise barrier |
DE3532154A1 (en) * | 1985-09-10 | 1987-03-12 | Reinhard Omir | Noise-protection element |
DE4408177C2 (en) | 1994-03-11 | 1997-05-28 | Lias Franken Leichtbau Gmbh | Noise protection wall part |
FR2731722A1 (en) * | 1995-03-17 | 1996-09-20 | Guichard Christian | Rail and motorway noise absorption |
AU6391998A (en) * | 1997-02-19 | 1998-09-09 | Phoenix Aktiengesellschaft | Sound protection device |
ATE538253T1 (en) * | 2004-09-06 | 2012-01-15 | Charlotte Make | NOISE PROTECTION WALL WITH FILTER |
DE102008002836A1 (en) | 2008-04-30 | 2009-11-05 | Msb-Management Gmbh | Low noise barrier on tracks |
-
2013
- 2013-07-17 EP EP13003593.4A patent/EP2692949B1/en not_active Not-in-force
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2697040A1 (en) * | 1992-10-21 | 1994-04-22 | Ind Entreprise | Protection element against noise and its use. |
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