DE202011103938U1 - Sound insulation device for railways - Google Patents

Abstract

Soundproofing device (10; 40) for railways with at least one soundproofing element (13) which complies with the clearance profile (3) and is arranged on at least one foundation (11; 41), characterized in that the soundproofing element (13) is at least partially opposite to the vertical (V) has an inclined design in the direction of the railroad track (2), the soundproofing element (13) engaging under the clearance profile (3) at least in some areas (U).

Description

The present invention relates to a soundproofing device for railways according to the preamble of claim 1.

For railways different sound insulation devices are in use. So revealed the DE 20 2005 003 255 U1 a soundproofing device, which is designed so that it can absorb high dynamic loads and thus in particular for noise protection on high-speed rail lines, for example, up to 200 km / h is suitable, extending about 3 m above the rail top. Such soundproofing devices effectively dampen the sound impersonated when driving on the railroad, but are associated with relatively high costs and impede both the view of the travelers on the environment as well as the landscape or the urban design overall impression.

In order not to affect the view from the rail vehicle, but also visual axes across the rail and also to improve the overall aesthetic impression of the rail in the countryside, it is now known to use low noise barriers, as they DE 10 2008 002 836 A1 and DE 10 2008 006 273 A1 demonstrate.

A disadvantage of these solutions, however, the associated design effort and their still unsatisfactory sound insulation performance. Demands of 4 dB at a frequency of 500 Hz, 5 dB at a frequency of 1000 Hz and 6 dB at a frequency of 2000 Hz are required here.

Object of the present invention is therefore to propose a soundproofing device that eliminates the disadvantages of previously common solutions. In particular, the soundproofing device should have a high sound insulation performance with low design effort and thereby neither affect the view nor shape the landscape significantly.

This object is achieved with a soundproofing device according to claim 1. Advantageous further developments are specified in the subclaims.

Based on the realization that in railways most of the sound in the area of contact between the wheels and the rails and by the running of the wheels in the camps (especially during braking) is emitted and therefore there is the sound insulation to be set, the inventors have recognized that the protection against this caused by rolling noise and braking sound can be significantly increased by the fact that the sound insulation elements are inclined relative to the vertical in the direction of the rail, the sound insulation elements engage the gauge at least partially. This ensures that the imitated by rolling noise and braking sound from the soundproofing element is significantly reduced and the soundproofing elements reflected sound is not released into the environment, but reflected in the track bed and recorded there, resulting in a total of a significant reduction of the imitated into the environment Achieve sound.

In this context, the term "clearance gauge" implies that rail vehicles and their wagons or trailers when passing over the rail path have an extent that is arranged at least partially vertically above individual areas of the sound insulation elements. This prevents sound from the sound insulation elements to the outside of the rail vehicles and cars reflected and can get from there directly or via further reflections in the environment.

The particular effectiveness of the soundproofing device according to the invention is thus achieved by a combination of the inclination with the gripping of the clearance space profile.

In an expedient development, it is provided that the inclination relative to the vertical is 5 ° to 45 °, preferably 10 ° to 30 °, in particular 15 ° to 25 °. As a result, the soundproofing device is particularly effective and at the same time visually inconspicuous.

In a further expedient embodiment, the length of the soundproofing element is 1 m to 12 m, preferably 3 m to 9 m, in particular 5 m to 7 m. Then you come out with relatively few base elements and the device is particularly simple and inexpensive to assemble, the stability of the sound insulation elements can still be adjusted relatively easily. If even longer soundproofing elements are to be provided, either supporting support elements must be provided or special measures for reinforcing the soundproofing elements must be undertaken, which makes the device more expensive.

Particularly advantageous is a punctiform foundation provided, preferably designed as a flat or deep foundation, in particular concrete base or steel support base are provided. Due to the punctiform foundations, the effort involved in setting up and also during dismantling, which may be necessary due to maintenance work, is substantially reduced, whereby the device according to the invention is much cheaper than previously known solutions.

Preferably, at least one transitional aid is provided, which preferably has at least one step, wherein in particular it is provided that steps facing the rail path are removably arranged. As a result, the soundproofing device can be overcome very easily during maintenance or evacuation measures both from the outside and from the inside.

In this context or in addition it can be provided that a cover of the soundproofing element is designed as a transitional aid.

Particularly expedient, the crossing aid is provided in the area of the foundation because it can be arranged there particularly easily and inexpensively.

In a particularly preferred embodiment, it is provided that at least one elastic element is arranged, which compensates for irregularities in the distance between railroad track and soundproofing device. As a result, the construction and operation of the soundproofing device is considerably simplified, because costly leveling work on rail and embankment can be omitted.

Suitably, an H-beam is arranged between at least two soundproofing elements, in which sound insulation elements are inserted on both sides. Then the soundproofing elements can be kept and secured particularly effective.

If a slot guide is arranged between soundproofing element and foundation, into which a guide element, in particular a mandrel engages, can be compensated for in a particularly simple and cost-effective manner, length fluctuations, in particular those which are temperature-related. Furthermore, this manufacturing and assembly-related tolerances can be compensated.

The fact that at least one damping element, in particular an elastomeric bearing is provided between the soundproofing element and the foundation, on the one hand acoustic emissions in the environment by the soundproofing elements themselves prevented and on the other hand, the longevity of the soundproofing device can be substantially increased because no material impairing working of the soundproofing elements against the foundation more can be done.

It is very advantageous if the soundproofing element is arranged so that it can be spaced away from the railroad track, because this makes maintenance considerably easier. For this purpose, in particular a hinge element can be provided on the foundation, whereby the soundproofing element can be spaced in a defined manner and moved back to the original position. This is done simply by flipping a portion of the foundation or structure down the foundation so that maintenance vehicles can easily use the railroad.

The characteristics and further advantages of the present invention will now become apparent in the following with reference to the description of two preferred embodiments in conjunction with the figures. Showing:

1 an overall view of a railway track with the soundproofing device according to the invention in connection with the clearance gauge.

2 the soundproofing device according to the invention in a first preferred embodiment in a cross-sectional view,

3 the soundproofing device according to the invention 2 in a plan view,

4 the soundproofing device according to the invention in a second preferred embodiment in a cross-sectional view,

5 the soundproofing device according to the invention 4 in a plan view and

6 the transition between two soundproofing elements of the soundproofing device according to the invention.

In 1 is purely schematically the soundproofing device according to the invention 1 in terms of a rail route 2 shown in section.

At the railroad 2 it is a railroad track, for the standard, a clearance gauge 3 is fixed. Alternatively, it may also be a tram track, S-Bahn track or the like. This clearance gauge 3 is used to define areas that need to be job-free so that rail vehicles or wagons (not shown) do not interfere with facilities and elements of the railway track 2 or other installations, such as platforms and the like, can collide.

It can be seen that the soundproofing elements 4 the soundproofing device 1 opposite the clearance gauge 3 are arranged so that they at least partially engage. This means that when driving on the railway 2 the rail vehicle or a rail car the sound insulation elements 4 at least partially overlaps, so that largely due to rolling and braking noise propagating sound can only get into the environment in a reduced form, as he of the soundproofing elements 4 taken or in the ballast bed 5 of the railway track 2 is reflected back and recorded there.

The soundproofing device according to the invention 1 Thus, it attacks where the sound significantly develops, so that largely impairments of the view from the rail vehicle and the landscape image are avoided. In addition, the soundproofing device 1 structurally very simple and therefore cost-effective, as explained in more detail in particular in connection with the following description.

In 2 and 3 is a first preferred embodiment of the soundproofing device according to the invention 10 Showing a one-time shallow foundation using a reinforced concrete precast foundation with concrete bases 11 having. On the concrete pedestals 11 are H-carriers 12 , also known as double T-beams, which, with respect to the vertical V, have a 20 ° inclination towards the railroad 2 exhibit. As especially related to 6 results are on both sides of each H-beam 12 Sound insulation elements 13 in the U-shaped shots 14 of the H-beam 12 inserted.

These soundproofing elements 13 are preferably six meters long (can be made to adapt to the local situation but in any other length) and have a centrally located acoustic insulation board 15 , for example, made of rock wool, on the side of Kant sheets 16 (profiled sheets) is limited and where outside side cover 17 are provided. Furthermore, the soundproofing elements 13 one upper strap each 18 and a bottom strap 19 on. At the bottom strap 19 are bearing plates 20 arranged, the oblong holes 21 exhibit. In these oblong holes 21 grab thorns 22 as guide elements that the soundproofing elements 13 opposite the H-beams 12 position and at the same time permit thermal expansion. For damping both in the vertical and against lateral vibration are elastomeric bearings 23 intended.

The concrete base 11 has incorporated treads 24 on and one from the railway 2 remote tread 25 , Furthermore, to the H-beam 12 a step 26 from the railroad 2 arranged apart and another tread 27 on the side of the railway 2 , This tread 27 is detachable designed to facilitate the work during maintenance. Finally, the H-beam 12 above a cover plate 28 covered, which also serves as a footboard. In this way, the soundproofing device 10 in the area of each foundation 11 for maintenance or evacuation effort, both externally and internally.

Furthermore, a grounding connector 29 provided to provide a continuous train service. Also, on the bottom strap 19 an elastic apron 30 arranged on the embankment 31 of the railroad track 2 elastically abuts and so by means of their sufficiently dimensioned height differences between embankment 31 and bottom strap 19 balances. Through the elastic apron 30 So unwanted spaces are avoided for sound leakage. Furthermore, in the elastic apron 30 Passages for small animals are integrated. Likewise, if necessary, in the sound insulation elements 13 such passages are integrated.

The general design of soundproofing elements 13 is known in the art. In this regard, in particular on the DE 20 2005 003 255 U1 the contents of which are hereby incorporated in full.

In the event that maintenance work must be carried out, can - as I said - the inner tread 27 be removed. If more extensive maintenance work, for example during reconstruction work on the superstructure, and in particular also maintenance work on the embankment 31 The flat based concrete pedestal can be completed 11 be lifted away without further notice.

It can be seen that the soundproofing device 10 structurally very simple and is also easy to set up and remove. In addition, the soundproofing device works 10 Very effective against noise emitted in the wheel rail area and prevents its leakage into the environment very effectively.

In the 4 and 5 is a second preferred embodiment of the soundproofing device according to the invention 40 shown purely schematically. It can be seen that, in contrast to the first preferred embodiment 10 according to the 2 and 3 in this case, no foundation with a concrete base 11 but a deep foundation using a vibrated or rammed steel girder 41 is present.

On the steel beam 41 is the H-carrier 42 above a removably arranged horizontal cross member 43 arranged. In essence, that is Construction same as in the first preferred embodiment 10 according to 2 and 3 , which is why the separate description of the same elements is omitted. The crossbeam 43 is on the steel beam 41 screwed on and can be removed during maintenance.

It can be seen that again different treads 44 on the outside as well as a removable step 45 are arranged on the inside. A cover plate 46 again forms an upper kick.

This preferred embodiment is used above all when there is no sufficient slope width, so that no concrete base requiring a relatively large bearing surface is used 11 can be used. In addition, such deep foundations will always be used when the soil conditions do not allow for flat foundations.

In addition, the horizontal cross member 43 be showered for the production of a peripheral path behind the soundproofing device.

From the above representations it has become clear that the soundproofing device according to the invention 10 . 40 a high soundproofing performance with low constructional effort and thereby neither affects the view nor shapes the landscape significantly.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202005003255 U1 [0002, 0036]
• DE 102008002836 A1 [0003]
• DE 102008006273 A1 [0003]

Claims (12)

Soundproofing device ( 10 ; 40 ) for railways with at least one gauge ( 3 ) einhaltendem soundproofing element ( 13 ) on at least one foundation ( 11 ; 41 ), characterized in that the soundproofing element ( 13 ) at least in regions one opposite the vertical (V) in the direction of the rail track ( 2 ) inclined training, wherein the soundproofing element ( 13 ) at least partially the gauge ( 3 ) (U). Soundproofing device ( 10 ; 40 ) according to claim 1, characterized in that the inclination relative to the vertical (V) is 5 ° to 45 °, preferably 10 ° to 30 °, in particular 15 ° to 25 °. Soundproofing device ( 10 ; 40 ) according to claim 1 or 2, characterized in that the length of the soundproofing element ( 13 ) 1 m to 12 m, preferably 3 m to 9 m, in particular 5 m to 7 m. Soundproofing device ( 10 ; 41 ) according to one of the preceding claims, characterized in that a punctiform foundation is provided, preferably designed as a flat or deep foundation, wherein in particular concrete base ( 11 ) or steel support base ( 41 ) are provided. Soundproofing device ( 10 ; 40 ) according to one of the preceding claims, characterized in that at least one transitional aid ( 24 . 25 . 26 . 27 . 28 ; 44 . 45 . 46 ), which preferably has at least one stage ( 24 . 25 . 26 . 27 . 28 ; 44 . 45 . 46 ), wherein it is provided in particular that the railroad facing stages ( 27 ; 45 ) are removably arranged. Soundproofing device ( 10 ; 40 ) according to one of the preceding claims, characterized in that a cover of the soundproofing element ( 28 ; 46 ) is provided as a transitional aid. Soundproofing device ( 10 ; 40 ) according to claim 5 or 6, characterized in that the Überstiegshilfe ( 24 . 25 ; 44 ) in the area of the foundation ( 11 ; 41 ) is provided. Soundproofing device ( 10 ; 40 ) according to one of the preceding claims, characterized in that at least one elastic element ( 30 ), the irregularities of the distance between railways ( 2 ) and soundproofing device ( 10 ; 40 ) compensates. Soundproofing device ( 10 ; 40 ) according to one of the preceding claims, characterized in that between at least two soundproofing elements ( 13 ) an H-beam ( 12 ) is arranged, in which on both sides of the soundproofing elements ( 13 ) are inserted. Soundproofing device ( 10 ; 40 ) according to one of the preceding claims, characterized in that between soundproofing element ( 13 ) and foundation ( 11 ; 41 ) a slot guide ( 21 ) is arranged, in which a guide element, in particular a mandrel ( 22 ) intervenes. Soundproofing device ( 10 ; 41 ) according to one of the preceding claims, characterized in that between soundproofing element ( 13 ) and foundation ( 11 ; 41 ) at least one damping element, in particular an elastomer bearing ( 23 ) is provided. Soundproofing device according to one of the preceding claims, characterized in that the soundproofing element is arranged so as to be spaced from the railway, wherein in particular a hinge element is provided.

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