EP2037043B1 - Anti-noise barrier - Google Patents

Anti-noise barrier Download PDF

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Publication number
EP2037043B1
EP2037043B1 EP08016055.9A EP08016055A EP2037043B1 EP 2037043 B1 EP2037043 B1 EP 2037043B1 EP 08016055 A EP08016055 A EP 08016055A EP 2037043 B1 EP2037043 B1 EP 2037043B1
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Prior art keywords
noise barrier
noise
barrier
volume container
container
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German (de)
French (fr)
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EP2037043A1 (en
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Hans Gernot Henrich
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Henrich Hans Gernot
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement

Definitions

  • the present invention relates to a noise barrier with at least one cavity.
  • Generic noise barriers are well known from the prior art and can be of different design to meet the respective requirements. Most such noise barriers along roads, especially highways, set up to shield the noise generated by the vehicles driving on the road so that, for example, residents in the vicinity of such a street are not bothered by the noise. Instead of the mentioned vehicles as sources of noise, chillers, generators or the like can be sources of noise, for example, which have to be shielded, for example in industrial areas.
  • Exemplary is the utility model DE 295 12 787 U1 mentioned, which has a noise protection device made of flat, having a plurality of resonator components, which are combined to form a noise-absorbing arrangement, wherein the different resonators respond to different frequency ranges.
  • the previously known noise protection device can effectively shield the noise generated in the road area in a relatively large frequency range.
  • GB 2 403 961 A discloses the features of the preamble of claim 1.
  • a disadvantage of the conventional noise barriers is that they usually increase the effectiveness of a relatively complicated and thus have cost-intensive structure, which also allows no adaptation of the noise barrier design to the local conditions.
  • the cavity resonator is a large-capacity container.
  • a large-capacity container according to the invention is further a container of any kind, which are not a freight container in the above sense, but this is similar in shape and size. Such a container can be produced inexpensively, for example from metal sheets and profiles.
  • the large-capacity container is cuboid, which in particular has a positive effect on the effort required for setting up the noise barrier.
  • cuboid training is the cubic shape for a large capacity container conceivable, and ultimately should not be excluded a trapezoidal cross-sectional configuration of a large capacity container.
  • a further advantageous embodiment of the invention provides that oppositely disposed walls of the cuboidal large-capacity container with each other at a distance of at least 1 m, preferably at least 1.5m.
  • This large-volume design of the large-capacity container, and thus of the cavity resonator results in a resonant behavior that is well-suited for shielding relatively low frequencies (e.g., noise from low-speed diesel engines).
  • relatively low frequencies e.g., noise from low-speed diesel engines.
  • approximately a sound insulation of up to 20 dB can be realized in this low frequency range.
  • At least one wall of the cuboid-shaped large-capacity container is at least partially formed of a flexible material.
  • This embodiment has the particular advantage that just vibrations in the low-frequency range are well received by the large-capacity container.
  • the wall itself vibrates when excited by sound waves of low noise frequencies. The strongly damped wall vibrations cause effective sound absorption.
  • the resonant frequency of the large-capacity container is in the range of 50 Hz to 250 Hz. This is made possible in particular by the large-volume design of the large-capacity container and by the above-described use of flexurally soft materials for at least one wall of the large-capacity container. For example, can be done by the relatively low resonance frequencies of the large-capacity container or the cavity resonator successfully shielding from noise, which is generated for example by truck engines.
  • At least one reflection element is arranged in the large-capacity container.
  • These elements serve to improve the damping properties of the large-capacity container, wherein an adaptation of the resonant frequency of the corresponding cavity resonator to the respective requirements can be realized in particular by the different design, number and arrangement of these elements in the large-capacity container. It is also conceivable to arrange further sound-absorbing elements and / or foreclosures in the interior of the large-capacity container, in particular to improve the sound insulation in the low frequency range.
  • the position of the reflection element within the large-capacity container can be varied, whereby at least the above-described effect of adapting the large-capacity container with respect to the resonance frequencies to the respective requirements can be carried out.
  • the noise barrier on a foundation on which the large-capacity container is arranged can be, for example, as a strip foundation.
  • the noise barrier can be arranged without the need for a deep foundation in the vicinity of a noise source.
  • the large-capacity container can be easily parked on the foundation for the production of the noise barrier and possibly anchored on this.
  • the invention provides that a breakwater is arranged in the upper area of the noise protection wall.
  • This breakwater serves to reduce diffraction effects of the sound waves, especially in low frequency ranges, wherein the breakwater causes a phase shift and refraction of the sound waves impinging on it.
  • a maximum shielding of, in particular, low frequencies is thus generated overall.
  • the sound is absorbed by the serving as cavity resonators large capacity containers.
  • the sound is prevented from escaping across the noise barrier.
  • the breakwater is pivotally mounted on the noise barrier.
  • This allows adaptation of the noise barrier to the local conditions. For example, there are different requirements for close to the road or remote from the road arranged noise barriers, namely because the noisy sound impinges on the noise barrier depending on the distance between the noise source and the noise barrier at different angles.
  • the pivoting can be done for example by means of mechanical, pneumatic or electromotive devices whose control can be performed with a suitable control device.
  • the noise protection wall has a fixing means with which the respective position of the breakwater can be fixed.
  • This embodiment is required in the pivotable arrangement of the breakwater on the large-capacity container, wherein the breakwater is first pivoted into an optimum position for noise shielding and then fixed there by means of the fixing agent.
  • the fixing means which are suitable for fixing the position of the breakwater in such a way that, for example, in storm or other external influences, a noise protection wall with high stability and suitable construction is provided.
  • the breakwater has at least one resonator.
  • This resonator can also be designed, for example, as a cavity resonator and serves to not only cause a phase shift and refraction of the sound impinging on it, but that an attenuation of the incident sound or absorption of corresponding sound waves can take place at the same time. which has a further positive effect on the noise protection properties of the noise protection wall.
  • the breakwater on several resonators with different resonant frequencies in order to absorb or attenuate sound waves and the associated noise in a large frequency range as possible.
  • the resonator of the breakwater on its side facing the noise source has a perforation and / or slotting.
  • This embodiment also serves to further improve the damping or absorption properties of the breakwater and thus the noise barrier.
  • a noise protection wall of essentially any size can be realized as a kind of "building blocks" using a large number of cavity resonators. It can be found preferably in a simple manner stackable cavity resonators use, as they are given for example by cuboid-shaped large capacity containers, namely ISO containers or overseas containers of the type mentioned above.
  • the noise protection wall has a facade which can be fastened to the large-capacity container or the noise protection wall.
  • a facade for example, in the form of a greening, planking with lightweight elements or covering done with canvases, films or the like, which on the one hand has a positive effect on the appearance of the noise barrier and on the other hand has a positive effect on their noise protection properties.
  • solar elements are arranged as cladding elements on the noise barrier, if this is desired.
  • the large-capacity containers are open on one side, in such a way that the noise protection wall forms a storage rack.
  • the space required by the comparatively thick noise protection wall can be used advantageously as a storage area.
  • the storage takes place similar to a conventional high-bay warehouse.
  • a noise barrier is thus proposed, which has a maximum of effectiveness and also in a simple manner and can be produced inexpensively.
  • a wide variety of combinations of the aforementioned features are conceivable in order to be able to provide a noise protection wall optimally adapted to the respective circumstances on site.
  • Fig. 1 is an embodiment of the noise protection wall 1 according to the invention refer to a side view, in which three cavity resonators in the form of large capacity containers 2 are arranged one above the other.
  • the large containers are ISO containers of conventional design.
  • the lowest open-plan container 2 is arranged on a strip foundation 3, wherein the feet 4 of the lower open-plan container 2 are embedded in the foundation 3 in order to produce an adequate connection between the foundation 3 and the lower open-plan container 2.
  • the feet 4 can stand up on the foundation 3 and be anchored there.
  • the two arranged above large-capacity container 2 are placed in a simple manner on the lower bulk container 2, which illustrates the simple structure and the associated low installation costs.
  • a breakwater 5 is pivotally mounted on the upper edge of the noise protection wall 1.
  • the pivoting of the breakwater 5 can take place here via a joint 6, via which the breakwater 5 is connected to the upper open-plan container 2 of the noise protection wall 1.
  • the fixing means with which the breakwater 5 can be fixed in the respectively optimum position is formed in this embodiment as a cable or wire 7, which or which is attached to the far end of the container 2 far end of the breakwater 5.
  • the cable or the wire 7 is deflected towards the ground via a deflection roller 8, which is arranged on the upper edge of the side facing away from the noise source of the noise protection wall 1 and has at its lower end an anchor 9, with this end of the rope or the wire 7 can be fixed in the region of the soil with or on suitable means, whereby the fixation of the breakwater 5 takes place in the respective assumed position.
  • the breakwater 5 has four resonators 10, which are designed as cavity resonators of different sizes, which differ in their resonant frequencies such that absorption or attenuation of the noise can take place over a relatively large frequency range.
  • the large capacity container 2 and accordingly the entire noise protection wall 1 open on one side, so that it can be used as a storage rack.
  • the noise protection wall 1 can be loaded in the illustrated embodiment from the right to be stored Good, for example by means of a forklift.
  • the partitions 11 together with the outer walls on the left side and at the top and bottom of the Container 2, the cavity resonators. These are filled with a sound-absorbing material 12.
  • the partitions 11 may be slotted and / or perforated to optimize the sound-absorbing properties.

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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)
  • Revetment (AREA)

Description

Die vorliegende Erfindung betrifft eine Lärmschutzwand mit wenigstens einem Hohlraumresonator.The present invention relates to a noise barrier with at least one cavity.

Gattungsgemäße Lärmschutzwände sind hinlänglich aus dem Stand der Technik bekannt und können von unterschiedlichster Ausgestaltung sein, um den jeweiligen Anforderungen gerecht zu werden. Meist werden solche Lärmschutzwände entlang von Straßen, insbesondere Autobahnen, aufgestellt, um den durch die auf der Straße fahrenden Fahrzeuge erzeugten Lärm abzuschirmen, damit beispielsweise Anwohner in der näheren Umgebung einer solchen Straße nicht durch den Lärm belästigt werden. Statt der erwähnten Fahrzeuge als Lärmquellen können beispielsweise auch Kältemaschinen, Generatoren oder Ähnliches Lärmquellen sein, die es, beispielsweise in Industriegebieten, abzuschirmen gilt.Generic noise barriers are well known from the prior art and can be of different design to meet the respective requirements. Most such noise barriers along roads, especially highways, set up to shield the noise generated by the vehicles driving on the road so that, for example, residents in the vicinity of such a street are not bothered by the noise. Instead of the mentioned vehicles as sources of noise, chillers, generators or the like can be sources of noise, for example, which have to be shielded, for example in industrial areas.

Beispielhaft sei das Gebrauchsmuster DE 295 12 787 U1 erwähnt, welches eine Lärmschutzeinrichtung aus flachen, eine Vielzahl von Resonatoren aufweisenden Bauelementen aufweist, die zu einer lärmschluckenden Anordnung miteinander kombiniert sind, wobei die verschiedenen Resonatoren auf verschiedene Frequenzbereiche ansprechen. Die vorbekannte Lärmschutzeinrichtung kann in einem relativ großen Frequenzbereich wirksam den im Straßenbereich erzeugten Lärm abschirmen.Exemplary is the utility model DE 295 12 787 U1 mentioned, which has a noise protection device made of flat, having a plurality of resonator components, which are combined to form a noise-absorbing arrangement, wherein the different resonators respond to different frequency ranges. The previously known noise protection device can effectively shield the noise generated in the road area in a relatively large frequency range.

GB 2 403 961 A offenbart die Merkmale des Oberbegriffs des Anspruchs 1. GB 2 403 961 A discloses the features of the preamble of claim 1.

Nachteilig bei den herkömmlichen Lärmschutzwänden ist, dass diese zur Steigerung der Effektivität meist einen relativ komplizierten und somit kostenintensiven Aufbau aufweisen, der zudem keine Anpassung der Lärmschutzwandausgestaltung an die jeweiligen Gegebenheiten vor Ort ermöglicht.A disadvantage of the conventional noise barriers is that they usually increase the effectiveness of a relatively complicated and thus have cost-intensive structure, which also allows no adaptation of the noise barrier design to the local conditions.

Daher ist es die Aufgabe der vorliegenden Erfindung, eine Lärmschutzwand bereitzustellen, die einfach und kostengünstig herstellbar sowie an die jeweiligen Gegebenheiten vor Ort anpassbar ist.Therefore, it is the object of the present invention to provide a noise barrier, which is simple and inexpensive to produce and adaptable to the particular conditions on site.

Diese Aufgabe wird erfindungsgemäß durch eine Lärmschutzwand nach Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen der Lärmschutzwand sind in den Unteransprüchen offenbart.This object is achieved by a noise barrier according to claim 1. Advantageous embodiments of the noise barrier are disclosed in the subclaims.

Erfindungsgemäß ist vorgesehen, dass der Hohlraumresonator ein Großraumbehälter ist.According to the invention, it is provided that the cavity resonator is a large-capacity container.

Unter Großraumbehältern im Sinne der Erfindung sind insbesondere Frachtcontainer wie beispielsweise Überseecontainer und ISO-Container zu verstehen. Diese werden, vorzugsweise nachdem Sie als Transportmittel ausgedient haben, zur Ausbildung der erfindungsgemäßen Lärmschutzwand verwendet. Dadurch ist nicht nur eine sehr kostengünstige Lärmschutzwand herstellbar, sondern es kann eine Lärmschutzwand bereitgestellt werden, die auf einfache Art und Weise aufstellbar ist und zudem eine Konstruktion und Stabilität aufweist, welche teure Baumaßnahmen, wie etwa eine Tiefgründung oder Ähnliches, unnötig macht. Ein entsprechender Großraumbehälter kann einfach zu dem jeweiligen Einsatzort in der Nähe einer Lärmquelle transportiert und abgestellt werden. Die Erfindung ermöglicht somit einen kostengünstigen und dennoch effektiven Lärmschutz. Ein Großraumbehälter im Sinne der Erfindung ist weiterhin ein Behälter jedweder Art, der nicht ein Frachtcontainer im vorbeschriebenen Sinne sind, diesem aber hinsichtlich Form und Größe ähnelt. Ein solcher Behälter kann kostengünstig, beispielsweise aus Metallblechen und -profilen, hergestellt werden.Under large-capacity containers in the context of the invention are in particular freight containers such as overseas containers and ISO containers to understand. These are, preferably after you have served as a means of transport, used to form the noise barrier according to the invention. As a result, not only a very inexpensive noise barrier can be produced, but it can be provided a noise barrier, which can be set up in a simple manner and also has a construction and stability, which makes expensive construction measures, such as a deep foundation or the like, unnecessary. A corresponding large-capacity container can be easily transported to the respective site in the vicinity of a noise source and parked. The invention thus enables cost-effective, yet effective noise protection. A large-capacity container according to the invention is further a container of any kind, which are not a freight container in the above sense, but this is similar in shape and size. Such a container can be produced inexpensively, for example from metal sheets and profiles.

Ferner ist der Großraumbehälter quaderförmig ausgebildet, was sich insbesondere positiv auf den Aufwand auswirkt, welcher für das Aufstellen der Lärmschutzwand erforderlich ist. Als Spezialfall der quaderförmigen Ausbildung ist auch die kubische Form für einen Großraumbehälter denkbar, und letztendlich soll auch eine im Querschnitt trapezförmige Ausgestaltung eines Großraumbehälters nicht ausgeschlossen werden. Diese eckigen Ausgestaltungen sorgen dafür, dass der einzelne Großraumbehälter eine einfach stapelbare Einheit bildet, die mit gleichartigen Einheiten zur Ausbildung einer entsprechend größeren Lärmschutzwand verwendet werden kann.Furthermore, the large-capacity container is cuboid, which in particular has a positive effect on the effort required for setting up the noise barrier. As a special case of cuboid training is the cubic shape for a large capacity container conceivable, and ultimately should not be excluded a trapezoidal cross-sectional configuration of a large capacity container. These angular configurations ensure that the single large capacity container forms a simple stackable unit that can be used with similar units to form a correspondingly larger noise barrier.

Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, dass gegenüberliegend angeordnete Wände des quaderförmig ausgebildeten Großraumbehälters untereinander einen Abstand von wenigstens 1 m, vorzugsweise wenigstens 1,5m aufweisen. Durch diese großvolumige Ausgestaltung des Großraumbehälters und somit des Hohlraumresonators ergibt sich ein Resonanzverhalten, das zur Abschirmung von relativ tiefen Frequenzen (z.B. Lärm durch langsam laufende Dieselmotoren) gut geeignet ist. Dabei ist in diesem tiefen Frequenzbereich erfindungsgemäß etwa eine Schalldämmung von bis zu 20 dB realisierbar.A further advantageous embodiment of the invention provides that oppositely disposed walls of the cuboidal large-capacity container with each other at a distance of at least 1 m, preferably at least 1.5m. This large-volume design of the large-capacity container, and thus of the cavity resonator, results in a resonant behavior that is well-suited for shielding relatively low frequencies (e.g., noise from low-speed diesel engines). In this case, according to the invention, approximately a sound insulation of up to 20 dB can be realized in this low frequency range.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist wenigstens eine Wand des quaderförmig ausgebildeten Großraumbehälters zumindest teilweise aus einem biegeweichen Material ausgebildet. Diese Ausgestaltung bringt insbesondere den Vorteil, dass gerade Schwingungen im tieffrequenten Bereich von dem Großraumbehälter gut aufgenommen werden. Die Wand selbst gerät in Schwingung, wenn sie durch Schallwellen niedriger Lärm-Frequenzen angeregt wird. Die stark gedämpften Wandschwingungen bewirken eine effektive Schallabsorption.According to a further advantageous embodiment of the invention, at least one wall of the cuboid-shaped large-capacity container is at least partially formed of a flexible material. This embodiment has the particular advantage that just vibrations in the low-frequency range are well received by the large-capacity container. The wall itself vibrates when excited by sound waves of low noise frequencies. The strongly damped wall vibrations cause effective sound absorption.

Im Zuge der vorliegenden Erfindung wird es weiter als vorteilhaft erachtet, wenn die Resonanzfrequenz des Großraumbehälters im Bereich von 50 Hz bis 250 Hz liegt. Dies wird insbesondere durch die großvolumige Ausgestaltung des Großraumbehälters sowie durch die vorbeschriebene Verwendung von biegeweichen Materialen für wenigstens eine Wand des Großraumbehälters ermöglicht. Beispielsweise kann durch die relativ niedrigen Resonanzfrequenzen des Großraumbehälters beziehungsweise des Hohlraumresonators erfolgreich eine Abschirmung von Lärm erfolgen, welcher z.B. durch LKW-Motoren erzeugt wird.In the course of the present invention, it is further considered advantageous if the resonant frequency of the large-capacity container is in the range of 50 Hz to 250 Hz. This is made possible in particular by the large-volume design of the large-capacity container and by the above-described use of flexurally soft materials for at least one wall of the large-capacity container. For example, can be done by the relatively low resonance frequencies of the large-capacity container or the cavity resonator successfully shielding from noise, which is generated for example by truck engines.

Gemäß der Erfindung ist in dem Großraumbehälter wenigstens ein Reflexionselement angeordnet. Diese Elemente dienen der Verbesserung der Dämpfungseigenschaften des Großraumbehälters, wobei sich insbesondere durch die unterschiedliche Ausgestaltung, Anzahl und Anordnung dieser Elemente in dem Großraumbehälter eine Anpassung der Resonanzfrequenz des entsprechenden Hohlraumresonators an die jeweiligen Anforderungen realisieren lässt. Denkbar ist auch, weitere Schallschluckelemente und/oder Abschottungen im Innenraum des Großraumbehälters anzuordnen, um insbesondere die Schalldämmung im niedrigen Frequenzbereich zu verbessern.According to the invention, at least one reflection element is arranged in the large-capacity container. These elements serve to improve the damping properties of the large-capacity container, wherein an adaptation of the resonant frequency of the corresponding cavity resonator to the respective requirements can be realized in particular by the different design, number and arrangement of these elements in the large-capacity container. It is also conceivable to arrange further sound-absorbing elements and / or foreclosures in the interior of the large-capacity container, in particular to improve the sound insulation in the low frequency range.

Erfindungsgemäß ist die Position des Reflexionselementes innerhalb des Großraumbehälters variierbar, wodurch zumindest der vorbeschriebene Effekt der Anpassung des Großraumbehälters hinsichtlich der Resonanzfrequenzen an die jeweiligen Anforderungen erfolgen kann.According to the invention, the position of the reflection element within the large-capacity container can be varied, whereby at least the above-described effect of adapting the large-capacity container with respect to the resonance frequencies to the respective requirements can be carried out.

Gemäß einem weiteren Vorschlag weist die Lärmschutzwand ein Fundament auf, auf dem der Großraumbehälter angeordnet ist. Das Fundament kann beispielsweise als Streifenfundament sein. Somit kann die Lärmschutzwand ohne das Erfordernis einer Tiefgründung im Umfeld einer Lärmquelle angeordnet werden. Der Großraumbehälter kann zur Herstellung der Lärmschutzwand einfach auf dem Fundament abgestellt und ggf. auf diesem verankert werden kann.According to a further proposal, the noise barrier on a foundation on which the large-capacity container is arranged. The foundation can be, for example, as a strip foundation. Thus, the noise barrier can be arranged without the need for a deep foundation in the vicinity of a noise source. The large-capacity container can be easily parked on the foundation for the production of the noise barrier and possibly anchored on this.

Um die Lärmschutzeigenschaften der Lärmschutzwand weiter zu verbessern, ist erfindungsgemäß vorgesehen, dass im oberen Bereich der Lärmschutzwand ein Wellenbrecher angeordnet ist. Dieser Wellenbrecher dient der Verminderung von Beugungseffekten der Schallwellen gerade in tiefen Frequenzbereichen, wobei der Wellenbrecher eine Phasenverschiebung und Brechung der auf ihn treffenden Schallwellen bewirkt. Durch diese Ausgestaltung der Lärmschutzwand wird somit insgesamt eine maximale Abschirmung von insbesondere tiefen Frequenzen erzeugt. Der Schall wird von den als Hohlraumresonatoren dienenden Großraumbehältern absorbiert. Zusätzlich wird der Schall an einem Entweichen über die Lärmschutzwand hinweg gehindert.In order to further improve the noise protection properties of the noise protection wall, the invention provides that a breakwater is arranged in the upper area of the noise protection wall. This breakwater serves to reduce diffraction effects of the sound waves, especially in low frequency ranges, wherein the breakwater causes a phase shift and refraction of the sound waves impinging on it. As a result of this embodiment of the noise protection wall, a maximum shielding of, in particular, low frequencies is thus generated overall. The sound is absorbed by the serving as cavity resonators large capacity containers. In addition, the sound is prevented from escaping across the noise barrier.

Nach einer vorteilhaften Ausgestaltung der Erfindung ist der Wellenbrecher verschwenkbar an der Lärmschutzwand angeordnet. Dies ermöglicht eine Anpassung der Lärmschutzwand an die jeweiligen Gegebenheiten vor Ort. Beispielsweise bestehen unterschiedliche Anforderungen bei nah am Straßenverlauf oder fern vom Straßenverlauf angeordneten Lärmschutzwänden, und zwar weil der lärmende Schall je nach Abstand zwischen Lärmquelle und Lärmschutzwand unter verschiedenen Winkeln auf die Lärmschutzwand auftrifft. Die Verschwenkung kann beispielsweise mittels mechanischer, pneumatischer oder elektromotorischer Einrichtungen erfolgen, deren Steuerung mit einer geeigneten Steuereinrichtung durchgeführt werden kann.According to an advantageous embodiment of the invention, the breakwater is pivotally mounted on the noise barrier. This allows adaptation of the noise barrier to the local conditions. For example, there are different requirements for close to the road or remote from the road arranged noise barriers, namely because the noisy sound impinges on the noise barrier depending on the distance between the noise source and the noise barrier at different angles. The pivoting can be done for example by means of mechanical, pneumatic or electromotive devices whose control can be performed with a suitable control device.

Weiter ist vorgesehen, dass die Lärmschutzwand ein Fixiermittel aufweist, mit dem die jeweilige Position des Wellenbrechers fixierbar ist. Diese Ausgestaltung ist bei der verschwenkbaren Anordnung des Wellenbrechers an dem Großraumbehälter erforderlich, wobei der Wellenbrecher zunächst in eine zur Lärmabschirmung optimale Position verschwenkt und anschließend mittels des Fixiermittels dort festgelegt wird. Für das Fixiermittel sind unterschiedliche Ausgestaltungen denkbar, welche geeignet sind, eine Fixierung der Position des Wellenbrechers derart vorzunehmen, dass auch beispielsweise bei Sturm oder anderen äußeren Einflüssen eine Lärmschutzwand mit hoher Stabilität und geeigneter Konstruktion gegeben ist.It is further provided that the noise protection wall has a fixing means with which the respective position of the breakwater can be fixed. This embodiment is required in the pivotable arrangement of the breakwater on the large-capacity container, wherein the breakwater is first pivoted into an optimum position for noise shielding and then fixed there by means of the fixing agent. Different embodiments are conceivable for the fixing means, which are suitable for fixing the position of the breakwater in such a way that, for example, in storm or other external influences, a noise protection wall with high stability and suitable construction is provided.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung weist der Wellenbrecher wenigstens einen Resonator auf. Auch dieser Resonator kann beispielsweise als Hohlraumresonator ausgebildet sein und dient dazu, dass durch den Wellenbrecher nicht nur eine Phasenverschiebung und Brechung des auf ihn treffenden, lärmenden Schalls erzeugt wird, sondern dass gleichzeitig auch eine Dämpfung des auftreffenden Schalls beziehungsweise eine Absorption entsprechender Schallwellen erfolgen kann, was sich weiter positiv auf die Lärmschutzeigenschaften der Lärmschutzwand auswirkt.According to a further advantageous embodiment of the invention, the breakwater has at least one resonator. This resonator can also be designed, for example, as a cavity resonator and serves to not only cause a phase shift and refraction of the sound impinging on it, but that an attenuation of the incident sound or absorption of corresponding sound waves can take place at the same time. which has a further positive effect on the noise protection properties of the noise protection wall.

In vorteilhafter Ausgestaltung der Erfindung weist der Wellenbrecher mehrere Resonatoren mit verschiedenen Resonanzfrequenzen auf, um Schallwellen und den damit verbundenen Lärm in einem möglichst großen Frequenzbereich absorbieren bzw. dämpfen zu können.In an advantageous embodiment of the invention, the breakwater on several resonators with different resonant frequencies in order to absorb or attenuate sound waves and the associated noise in a large frequency range as possible.

Des Weiteren ist es von Vorteil, wenn der Resonator des Wellenbrechers auf seiner der Lärmquelle zugewandten Seite eine Lochung und/oder Schlitzung aufweist. Auch diese Ausgestaltung dient der weiteren Verbesserung der Dämpfungs- bzw. Absorptionseigenschaften des Wellenbrechers und somit der Lärmschutzwand. Durch die jeweilige Anzahl an Löchern oder Schlitzen in der der Lärmquelle zugewandten Seite des Resonators kann eine Anpassung der Lärmschutzeigenschaften des Wellenbrechers und somit der Lärmschutzwand an die jeweiligen Gegebenheiten vor Ort erfolgen.Furthermore, it is advantageous if the resonator of the breakwater on its side facing the noise source has a perforation and / or slotting. This embodiment also serves to further improve the damping or absorption properties of the breakwater and thus the noise barrier. By the respective number of holes or slots in the side facing the noise source side of the resonator, an adaptation of the noise protection properties of the breakwater and thus the noise barrier to the respective local conditions can be done.

Es wird weiter vorgeschlagen, dass mehrere selbsttragende Hohlraumresonatoren vorgesehen sind, die über- und nebeneinander angeordnet sind und so die Lärmschutzwand bilden. Dadurch ist eine Lärmschutzwand im Wesentlichen beliebiger Größe unter Verwendung einer Vielzahl von Hohlraumresonatoren gleichsam als "Bausteine" realisierbar. Es finden vorzugsweise auf einfache Art und Weise stapelbare Hohlraumresonatoren Verwendung, wie sie beispielsweise durch quaderförmig ausgebildete Großraumbehälter, nämlich ISO-Container oder Überseecontainer der oben erwähnten Art, gegeben sind.It is further proposed that a plurality of self-supporting cavity resonators are provided, which are arranged above and next to each other and thus form the noise barrier. As a result, a noise protection wall of essentially any size can be realized as a kind of "building blocks" using a large number of cavity resonators. It can be found preferably in a simple manner stackable cavity resonators use, as they are given for example by cuboid-shaped large capacity containers, namely ISO containers or overseas containers of the type mentioned above.

Ferner wird vorgeschlagen, dass die Lärmschutzwand eine Fassade aufweist, die an dem Großraumbehälter beziehungsweise der Lärmschutzwand befestigbar ist. Eine solche Fassade kann beispielsweise in Form einer Begrünung, Beplankung mit Leichtbauelementen oder Bespannung mit Leinwänden, Folien oder Ähnlichem erfolgen, was sich einerseits positiv auf die Optik der Lärmschutzwand und andererseits positiv auf deren Lärmschutzeigenschaften auswirkt. Auch ist denkbar, dass Solarelemente als Verkleidungselemente an der Lärmschutzwand angeordnet werden, falls dieses gewünscht ist.It is also proposed that the noise protection wall has a facade which can be fastened to the large-capacity container or the noise protection wall. Such a facade, for example, in the form of a greening, planking with lightweight elements or covering done with canvases, films or the like, which on the one hand has a positive effect on the appearance of the noise barrier and on the other hand has a positive effect on their noise protection properties. It is also conceivable that solar elements are arranged as cladding elements on the noise barrier, if this is desired.

Gemäß einer sinnvollen Weiterbildung der erfindungsgemäßen Lärmschutzwand ist vorgesehen, dass die Großraumbehälter an einer Seite offen sind, in der Weise, dass die Lärmschutzwand ein Lagerregal bildet. Auf diese Weise kann der von der vergleichsweise dicken Lärmschutzwand benötigte Platz vorteilhaft als Lagerfläche genutzt werden. Die Lagerung erfolgt dabei ähnlich wie bei einem herkömmlichen Hochregallager.According to a useful development of the noise protection wall according to the invention it is provided that the large-capacity containers are open on one side, in such a way that the noise protection wall forms a storage rack. In this way, the space required by the comparatively thick noise protection wall can be used advantageously as a storage area. The storage takes place similar to a conventional high-bay warehouse.

Mit der vorliegenden Erfindung wird somit eine Lärmschutzwand vorgeschlagen, welche ein Höchstmaß an Effektivität aufweist und zudem auf einfache Art und Weise sowie kostengünstig herstellbar ist. Dabei sind unterschiedlichste Kombinationen der vorgenannten Merkmale denkbar, um eine entsprechend an die jeweiligen Begebenheiten vor Ort optimal angepasste Lärmschutzwand bereitstellen zu können.With the present invention, a noise barrier is thus proposed, which has a maximum of effectiveness and also in a simple manner and can be produced inexpensively. In this case, a wide variety of combinations of the aforementioned features are conceivable in order to be able to provide a noise protection wall optimally adapted to the respective circumstances on site.

Ein Ausführungsbeispiel der Erfindung wird im Folgenden anhand der Figur beschrieben. Dabei zeigt

Fig. 1
eine schematische Seitenansicht einer erfindungsgemäßen Lärmschutzwand.
Fig. 2
eine schematische Seitenansicht eines zweiten Ausführungsbeispiels einer erfindungsgemäßen Lärmschutzwand.
An embodiment of the invention will be described below with reference to FIG. It shows
Fig. 1
a schematic side view of a noise barrier according to the invention.
Fig. 2
a schematic side view of a second embodiment of a noise barrier according to the invention.

Der Fig. 1 ist ein Ausführungsbeispiel für die erfindungsgemäße Lärmschutzwand 1 in Seitenansicht zu entnehmen, bei dem drei Hohlraumresonatoren in Form von Großraumbehältern 2 übereinander angeordnet sind. Bei den Großraumbehältern handelt es sich um ISO-Container üblicher Konstruktion. Der unterste Großraumbehälter 2 ist auf einem Streifenfundament 3 angeordnet, wobei die Füße 4 des unteren Großraumbehälters 2 in das Fundament 3 eingelassen sind, um eine angemessene Verbindung zwischen dem Fundament 3 und dem unteren Großraumbehälter 2 zu erzeugen. Ebensogut können die Füße 4 auf dem Fundament 3 aufstehen und dort verankert sein. Die beiden darüber angeordneten Großraumbehälter 2 sind auf einfache Art und Weise auf den unteren Großraumbehälter 2 aufgestellt, was den einfachen Aufbau und den damit verbundenen geringen Aufstellaufwand verdeutlicht.Of the Fig. 1 is an embodiment of the noise protection wall 1 according to the invention refer to a side view, in which three cavity resonators in the form of large capacity containers 2 are arranged one above the other. The large containers are ISO containers of conventional design. The lowest open-plan container 2 is arranged on a strip foundation 3, wherein the feet 4 of the lower open-plan container 2 are embedded in the foundation 3 in order to produce an adequate connection between the foundation 3 and the lower open-plan container 2. Just as well, the feet 4 can stand up on the foundation 3 and be anchored there. The two arranged above large-capacity container 2 are placed in a simple manner on the lower bulk container 2, which illustrates the simple structure and the associated low installation costs.

Auf der einer Lärmquelle zugewandten Seite der Lärmschutzwand 1 (in Fig. 1 links) ist an der Oberkante der Lärmschutzwand 1 ein Wellenbrecher 5 verschwenkbar angeordnet. Die Verschwenkung des Wellenbrechers 5 kann hier über ein Gelenk 6 erfolgen, über das der Wellenbrecher 5 mit dem oberen Großraumbehälter 2 der Lärmschutzwand 1 verbunden ist. Durch diese verschwenkbare Anordnung des Wellenbrechers 5 an dem oberen Großraumbehälter 2 beziehungsweise an der Lärmschutzwand 1 kann der Winkel zwischen der der Lärmquelle zugewandten Seite der Großraumbehälter 2 und der der Lärmquelle zugewandten Fläche des Wellenbrechers 5 so variiert werden, dass eine optimale Abschirmung des durch die Lärmquelle erzeugten Lärms erfolgen kann und möglichst kein Lärm nach oben über die übereinander gestapelten Großraumbehälter 2 entweicht. Hierbei wird insbesondere ausgenutzt, dass von dem Wellenbrecher 5 ausgehende Schallwellen mit den übrigen Schallwellen destruktiv interferieren, um eine maximale Lärmreduktion zu realisieren.On the side facing the noise source of the noise protection wall 1 (in Fig. 1 left) a breakwater 5 is pivotally mounted on the upper edge of the noise protection wall 1. The pivoting of the breakwater 5 can take place here via a joint 6, via which the breakwater 5 is connected to the upper open-plan container 2 of the noise protection wall 1. By this pivotal arrangement of the breakwater 5 at the upper large capacity container 2 or on the noise protection wall 1, the angle between the side facing the noise source of the bulk container 2 and the noise source facing surface of the breakwater 5 can be varied so that optimal shielding of the noise generated by the noise source can be done and no noise above the stacked large capacity container 2 escapes. In this case, it is particularly exploited that sound waves emanating from the breakwater 5 destructively interfere with the remaining sound waves in order to realize maximum noise reduction.

Das Fixiermittel, mit dem der Wellenbrecher 5 in der jeweils optimalen Position fixierbar ist, ist in dieser Ausführung als Seil oder Draht 7 ausgebildet, welches beziehungsweise welcher an dem dem Großraumbehälter 2 fernen Ende des Wellenbrechers 5 befestigt ist. Das Seil beziehungsweise der Draht 7 wird über eine Umlenkrolle 8, welche an der Oberkante der der Lärmquelle abgewandten Seite der Lärmschutzwand 1 angeordnet ist, Richtung Boden umgelenkt und weist an seinem unteren Ende einen Anker 9 auf, mit dem dieses Ende des Seils beziehungsweise des Drahts 7 im Bereich des Bodens mit oder an geeigneten Mitteln befestigt werden kann, wodurch die Fixierung des Wellenbrechers 5 in der jeweils eingenommenen Position erfolgt.The fixing means with which the breakwater 5 can be fixed in the respectively optimum position is formed in this embodiment as a cable or wire 7, which or which is attached to the far end of the container 2 far end of the breakwater 5. The cable or the wire 7 is deflected towards the ground via a deflection roller 8, which is arranged on the upper edge of the side facing away from the noise source of the noise protection wall 1 and has at its lower end an anchor 9, with this end of the rope or the wire 7 can be fixed in the region of the soil with or on suitable means, whereby the fixation of the breakwater 5 takes place in the respective assumed position.

In der gezeigten Ausführungsform weist der Wellenbrecher 5 vier Resonatoren 10 auf, welche als Hohlraumresonatoren unterschiedlicher Größe ausgebildet sind, die sich in ihren Resonanzfrequenzen derart unterscheiden, dass eine Absorption beziehungsweise eine Dämpfung des Lärms über einen relativ großen Frequenzbereich erfolgen kann.In the embodiment shown, the breakwater 5 has four resonators 10, which are designed as cavity resonators of different sizes, which differ in their resonant frequencies such that absorption or attenuation of the noise can take place over a relatively large frequency range.

Bei dem in der Fig. 2 gezeigten Ausführungsbeispiel sind die Großraumbehälter 2, und entsprechend die gesamte Lärmschutzwand 1 einseitig offen, so dass diese als Lagerregal genutzt werden kann. Die Lärmschutzwand 1 kann bei dem dargestellten Ausführungsbeispiel von rechts her mit zu lagerndem Gut, beispielsweise mittels eines Gabelstaplers, beladen werden. Es sind zur Abteilung des zur Lagerung vorgesehenen Raumes Trennwände 11 im Inneren der Großraumbehälter 2 vorgesehen. Die Trennwände 11 bilden zusammen mit den Außenwänden an der linken Seite sowie an der Ober- und Unterseite der Behälter 2 die Hohlraumresonatoren aus. Diese sind mit einem schallschluckenden Material 12 ausgefüllt. Die Trennwände 11 können zur Optimierung der schalldämmenden Eigenschaften geschlitzt und/oder gelocht ausgebildet sein.In the in the Fig. 2 shown embodiment, the large capacity container 2, and accordingly the entire noise protection wall 1 open on one side, so that it can be used as a storage rack. The noise protection wall 1 can be loaded in the illustrated embodiment from the right to be stored Good, for example by means of a forklift. There are provided to the department of the space provided for storage partitions 11 inside the bulk container 2. The partitions 11 together with the outer walls on the left side and at the top and bottom of the Container 2, the cavity resonators. These are filled with a sound-absorbing material 12. The partitions 11 may be slotted and / or perforated to optimize the sound-absorbing properties.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
LärmschutzwandSound barrier
22
GroßraumbehälterHigh Capacity Feeder
33
Fundamentfoundation
44
Fußfoot
66
Wellenbrecherbreakwater
66
Gelenkjoint
77
Drahtwire
88th
Umlenkrolleidler pulley
99
Ankeranchor
1010
Resonatorresonator
1111
Trennwandpartition wall
1212
schallschluckendes Materialsound-absorbing material

Claims (14)

  1. Noise barrier (1) having at least one cavity resonator, wherein the cavity resonator is a large-volume container (2) of cuboidal configuration in which at least one reflective element is arranged, wherein the position of the reflective element within the large-volume container (2) is variable, characterized by a wave breaker (5) arranged in the upper region of the noise barrier (1).
  2. Noise barrier according to Claim 1, characterized in that at least one damping element is arranged in the large-volume container (2).
  3. Noise barrier (1) according to Claim 1 or 2, characterized in that mutually opposite walls of the large-volume container (2) are at a distance of at least 1 m from one another.
  4. Noise barrier (1) according to one of the preceding claims, characterized in that at least one wall of the large-volume container (2) is formed at least partially from a flexible material.
  5. Noise barrier (1) according to one of the preceding claims, characterized in that the resonance frequency of the cavity resonator is in the range from 50 Hz to 250 Hz.
  6. Noise barrier (1) according to one of the preceding claims, characterized by at least one foundation (3) on which the large-volume container (2) is arranged.
  7. Noise barrier (1) according to one of the preceding claims, characterized in that the wave breaker (5) is arranged in a pivotable manner on the noise barrier (1).
  8. Noise barrier (1) according to Claim 7, characterized by a fixing means by way of which the particular position of the wave breaker (5) is fixable.
  9. Noise barrier (1) according to one of the preceding claims, characterized in that the wave breaker (5) has at least one resonator.
  10. Noise barrier (1) according to Claim 9, characterized in that the wave breaker (5) has a plurality of resonators with mutually different resonance frequencies.
  11. Noise barrier (1) according to Claim 9 or 10, characterized in that the resonator has holes and/or slots on its side facing a source of noise.
  12. Noise barrier (1) according to one of the preceding claims, characterized in that the noise barrier is formed by a plurality of self-supporting cavity resonators which are arranged on top of and alongside one another.
  13. Noise barrier (1) according to one of the preceding claims, characterized by a façade which is fastenable to the large-volume container (2).
  14. Noise barrier (1) according to one of the preceding claims, characterized in that the at least one large-volume container (2) is open on one side such that the noise barrier (1) forms a storage rack.
EP08016055.9A 2007-09-11 2008-09-11 Anti-noise barrier Active EP2037043B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007043040 2007-09-11

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EP2037043A1 EP2037043A1 (en) 2009-03-18
EP2037043B1 true EP2037043B1 (en) 2016-05-25

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Publication number Priority date Publication date Assignee Title
DE202021103884U1 (en) 2021-05-28 2021-08-05 Heinrich Blase Noise protection device with several functions
DE102021113822A1 (en) 2021-05-28 2022-12-01 Heinrich Blase Noise protection device with multiple functions

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EP2543766B1 (en) 2011-07-07 2017-03-29 Wittfeld GmbH Protective wall for traffic routes
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CN108221723B (en) * 2018-01-03 2019-11-15 鲲鳌建设有限公司 A kind of noise reduction isolation strip
EP3664077A1 (en) * 2018-12-06 2020-06-10 Wavebreaker AB Interference noise-control unit

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DE202021103884U1 (en) 2021-05-28 2021-08-05 Heinrich Blase Noise protection device with several functions
DE102021113822A1 (en) 2021-05-28 2022-12-01 Heinrich Blase Noise protection device with multiple functions

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