DE202011052057U1 - Noise protection device - Google Patents

Abstract

Noise protection device (1) for arrangement on a traffic route comprising at least one wall element (8) with a wall element longitudinal extension (28a), the wall element (8) being arranged on at least one base element (7) having a base element longitudinal extension (12) in FIG Direction of the wall element longitudinal extent (28a), wherein the base element (7) has a first end faces (14) and a second end face (15), and the two end faces (14, 15) along the base element longitudinal extension (12) opposite each other lying, characterized in that the first end face (14) of the base element (7) with a first rounding (16) and the second end face (15) of the base element (7) with a second rounding (17) are formed, wherein the two curves (16, 17) extend in the direction perpendicular to the base element longitudinal extent (12).

Description

The invention relates to a noise protection device for arrangement on a traffic route comprising at least one wall element with a wall element longitudinal extension, wherein the wall element is arranged on at least one base element having a base element longitudinal extent in the direction of the wall element longitudinal extent, wherein the base element has a first end faces and a second end face, and the two end faces along the base element longitudinal extent facing each other, a noise barrier system comprising a plurality of longitudinally successively arranged protection devices and the use of the noise protection device.

Noise protection devices in the form of wall elements are used on or on traffic routes for noise protection. Usually, these protective devices are fixedly placed on or next to the traffic route, and a corresponding foundation is made for this purpose, on which or in which the stands for the noise barriers themselves, which are normally made of steel as I or H beams, are anchored become.

The AT 7 753 U1 describes a soundproofing element for use in railway construction. To insulate the sound generated when rolling the wheels on the tracks is provided that on an attachable to the ground, a footprint forming base element an insulating element is arranged, which preferably extends vertically in the height and with respect to the base element movable, preferably folded down , and / or is removably stored.

From the DE 298 05 730 U1 is a sound barrier wall for traffic routes with a supported on the ground support structure are fixed to the prefabricated, sound-absorbing wall elements known, the support structure comprises a plurality of prefabricated vertical frame in which the wall elements are used, and wherein the wall elements at least partially made of recycled material and / or immobilized waste.

The DE 85 28 305 U1 describes a kit for the construction of unsupported noise barriers, wherein the individual kit elements consist of noise protection wall elements having rear plates on which Dämmstofflagen are arranged, which are covered with perforated plates, wherein at least one lateral end of the rear plates has a hinged formation with hinge axis, which is formed cooperable with the neighboring plate.

From the AT 10 131 U1 a mobile noise barrier is known, which consists of a concrete base, a releasably connected thereto noise protection element and a cross brace which is releasably connected to both the concrete base and with the noise protection element consists. The noise protection element consists of highly absorbent noise protection panels in a steel construction and is mounted on the concrete base and fixed by means of cross brace.

From the DE 44 19 886 A1 is a soundproofing coating for sound-emitting and / or sound-reflecting surfaces, in particular for railway superstructure, known, wherein the soundproofing coating comprises a rubber granules, which is solidified by means of a preferably elastically deformable plastic, wherein the coating additionally a relatively high, at least partially open-pore air entrainment comprises.

From the DE 24 07 281 A1 For example, there is known a sound insulating material in which two contacting layers are provided, each containing a plurality of inorganic particles which are thinly covered with and bonded to an adhesive, with holes formed between the adjoining particles. The particle sizes in each layer differ from each other in such a way that essentially all particles of a layer are more than twice greater than the maximum size of the particles in an adjacent layer. All particles in all layers are essentially in the size range between 0.1 mm to 15 mm.

The WO 98/37276 A1 describes a soundproofing device for reducing airborne sound propagation, comprising a track system and a running in the longitudinal direction of track and elastically deformable low noise protective wall made of rubber or plastic, said arranged at a distance from the track low-noise protective wall on its side facing towards the track (inside) has a profiling, the extends substantially over the entire wall height, while their side facing away from the track (outside) is designed mostly flat. The inside is at an angle α and the outside at an angle β, in each case with respect to the track perpendicular to the track inclined, wherein the angle β is greater than the angle α. The profiling of the inside is a system of lips, with the lips at an angle γ, relative to the track horizontal, to the track floor show. The low-noise protective wall is at the top, where the inside and the outside converge towards each other, closed by a lip inclined towards the track, which points at an angle δ, with respect to the track perpendicular, upwards. Furthermore, the low-noise protective wall has at least one cavity running in the longitudinal direction of the track.

From the AT 8 619 U1 a fastening mechanism is known which allows the use of a soundproof wall without foundation. The attachment mechanism consists of a simple, easy-to-install and dismantle profile that can be connected to a rail. The simple assembly and disassembly is done by applying force to a mounting plate. A correspondingly bent mounting bracket holds the soundproofing wall at the exact horizontal distance to the rail and at the same time stabilizes the right-angled position to the track. A locking plate connects by snapping the soundproof wall with the attachment mechanism. The mounting bracket is covered with rubber or other elastic material for the protection and vibration damping of the rail and threshold. The offset of the mounting bracket during the transition from the threshold to the ballast bed downwards serves to ensure that it is embedded in the ballast and that the weight load of the soundproofing wall is entirely taken over by the ballast bedding.

From the AT 9 954 U1 is a noise barrier for shielding the noise is known, which occurs by driving on railroad tracks, the height of the arranged on both sides of a track noise barrier is about 0.5 m to 2 m. The distance between two - in a normal to a longitudinal direction of the track opposite each other - noise barriers is only in a range of about 3 to 5% greater than the width of a clearance gauge of the track, wherein the angle of the track facing side of the noise barrier in one area is located at about -15 to +15 ° to the vertical and at a lower, resting on the ballast of the track end of the noise barrier on a side facing away from the track a nose with a side facing away from said side remote nose end is provided with a horizontal one Angle of about 10 ° to about 40 °.

From the AT 508 575 B1 For example, there is known a protective device for mounting on a traffic route, comprising at least one wall element, wherein the wall element is arranged on at least one base element, which can be arranged on the traffic path without foundation, wherein the base element can be arranged on a ballast bed of a track and not in the track Floor is anchored, and the base element has at least one connecting element with which the base element with a threshold and / or a rail of a track is connectable.

It is the object of the present invention to simplify the construction of noise abatement devices for railway tracks. In particular, it is the object of the invention to provide an improved noise protection device.

This object is achieved in each case independently by the noise protection device mentioned at the outset, by the protective wall system mentioned at the outset and by the use of the noise protection device, wherein in the noise protection device the first end face of the base element is formed with a first rounding and the second end face of the base element with a second rounding, the two curves extending in the direction perpendicular to the base element longitudinal extension, the protective wall system is formed from the noise protection devices, and when using the protection device as a soundproof wall along a track, the soundproof wall is placed at a distance from the adjacent rail between 50 cm and 120 cm ,

The advantage here is that due to the trained curves curve radii can be made easier. In addition, it is achieved that with this construction, the noise protection wall system higher attacking lateral forces withstand, since the forces are distributed by the adjoining noise protection devices on several noise protection devices, with a lateral sliding apart of the noise protection devices assembled condition of the noise barrier system can be prevented. In other words, the lateral mobility of the individual noise protection devices is reduced in the noise protection wall system, so that can be dispensed with a connection of the noise protection device to the rails or to the threshold, although these noise protection devices are placed at a very short distance to the rail, preferably without a foundation, d. H. that they are placed only on a ballast bed or possibly on a solid roadway. It is thus possible to approach very close to the sound source with the noise protection wall system, whereby the height of the noise protection devices can be reduced. It is thus also a higher security in the middle region between the tracks of two directions of orientation fixing the noise protection devices possible. By avoiding mechanical connections between the noise protection devices and the rails or sleepers, a simplified construction of the noise protection wall system is achieved.

According to a preferred embodiment, it is provided that the first rounding has a conical course and the second rounding has a convex course. The base elements or the entire soundproofing elements can thus all have the same shape, whereby on the one hand the manufacture of the elements and on the other hand their assembly are simplified. It is beyond that making it possible to produce tighter radii of curvature with greater stability of the soundproof wall.

It can further be provided that the wall element and the base element are formed integrally with each other. It can thus be significantly reduced assembly time of the sound barrier system. Conversely, however, the dismantling can be shortened or simplified by simply lifting the soundproofing device with a crane, which in particular benefits are achieved during maintenance work on the track or during mining work after train accidents.

According to another embodiment, it is provided that the wall element and / or the base element consist of a lightweight concrete with pores. It is thus possible monolithic form these sound insulation elements, so that can be dispensed with a complex structure to achieve the sound insulation effect. Moreover, it is thus possible in a simple manner that sound insulation behavior by appropriate selection of the pore size or by providing a pore size spectrum or by the number of pores, d. H. easy to adjust the entire pore volume.

But it can also be provided that the wall element has a filling of rock wool or rubber granules. In particular, this wall element is used as a so-called field element. It is thus provided a wall element that has a high weather resistance, which require no special treatment to improve the weather resistance and low maintenance can be performed, but at the same time a relatively high reduction of noise pollution is achieved by residents on the railway line.

To further reduce the noise pollution can be provided that is arranged on and / or in the wall element, a blocking element against sound waves. It is possible in this way to keep the total weight with improved sound reduction low.

According to a variant of the noise protection wall system, it is provided that the noise protection devices are connected to one another in a form-fitting manner. It is thus possible to dispense with an additional non-positive connection, for example by means of retaining clips or screws. On the one hand, the assembly and disassembly of the noise protection wall system is in turn simplified by an exclusively positive connection, on the other hand, the production of the noise protection device is simpler, as can be dispensed to Eilegeteile, such as screw or the like., For producing a non-positive connection between the noise protection devices.

In order to reduce the risk that the noise protection device due to (micro) movements in the ballast bed in terms of their location, in particular with respect to the distance to the rails changes, it can be provided that only the first and / or last noise protection device of the plurality of consecutively arranged Noise protection devices comprises or have at least one connecting element with which the noise protection device with a threshold and / or a rail of a track is connectable. Again, it is advantageous that this connection is limited to a maximum of two noise protection devices, whereby the assembly and disassembly of the noise barrier system can be further simplified. The positional stability of the further noise protection devices between the two end members is achieved by the positive connection of the individual noise protection devices.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

Each shows in a schematically simplified representation:

1 the formation of a soundproofing device on a railroad track in front view in the direction of the rail traffic route;

2 a soundproofing device in an oblique view;

3 the soundproofing device after 2 in plan view;

4 a first end element for the soundproofing device according to 4 in an oblique view;

5 after the end element 4 in plan view;

6 a further end element for the soundproofing device according to 4 in an oblique view;

7 a section of a sound barrier system with several soundproofing after the 2 to 6 in oblique view with rail connection;

8th the sound barrier system after 7 in plan view;

9 a section of another sound insulation wall system with several Sound insulation devices according to a variant in an oblique view with rail connection;

10 the sound barrier system after 9 in plan view;

11 the sound barrier system after 9 in front view;

12 an embodiment of a fastening element for fastening a wall element on a base element of a soundproofing device in front view;

13 the fastener after 12 in side view;

14 the fastener after 12 in view from behind;

15 the fastener after 12 in plan view;

16 a rail connection element for connecting a soundproofing device to a rail in plan view;

17 the rail connection element after 16 in side view;

18 the rail connection element after 16 in an oblique view;

19 a variant of a base element of the soundproofing device in plan view;

20 a further embodiment of a base element of the soundproofing device in plan view.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location selected in the description, such as. B. top, bottom, side, etc. related to the immediately described and illustrated figure and are mutatis mutandis to transfer to a new position on a change in position.

In 1 are two variants of a soundproofing device 1 represented are very similar to each other and in the 2 to 8th respectively. 9 and 10 are shown in more detail. In particular, these noise protection devices are used 1 as noise barriers in the area of railway tracks 2 , being like this 1 Show the soundproofing device 1 has the advantage that these are very close to railway tracks 3 can be brought, so in the range of wheels 4 of rail vehicles 5 or the track strands 3 arising noise even at low height of the soundproofing device 1 can be effectively insulated or can be redirected to a no longer disturbing area.

These two soundproofing devices 1 to 1 are of course arranged so that unimpeded operation of rail vehicles 5 that is, that they are at a sufficient distance 6 . 7 to the moving rail vehicles 5 are arranged. Due to the construction of the noise protection devices 1 can this distance 6 . 7 to the two noise protection devices 1 between 0.5 m and 1.2 m, in particular between 0.7 m and 1 m, so that so the two noise protection devices 1 can be mounted very close to the sound source. The distance 6 . 7 is between the edge of the outermost, the rails facing edge of the noise protection devices 1 and the center of the adjacent rail measured.

In the 2 and 3 is now the first embodiment of the protection device 1 to 1 , a so-called center element, which is arranged in particular at least approximately centrally between two track sections.

The noise protection device 1 comprises or consists of a (em) base element 7 and at least one (em) wall element 8th , where also several wall elements 8th can be used, for example two on top of each other. Of course, also a different number of wall elements 8th , which are arranged one above the other, in the noise protection device 1 be provided.

Such a wall element 4 may for example have a length of about 3 m, a width of about 12 cm to about 20 cm and a height of about 80 cm to about 100 cm, and this information is not to be understood as limiting.

This noise protection device 1 may consist of several parts, in particular the base element 7 and the wall element 8th separate components of the noise protection device 1 can represent.

The base element 7 is preferably formed as a concrete base in the form of a sheet-like element as from 2 and 3 evident. For example, such a base element 3 a Width of about 1.2 m, a length of about 3 m and a height of about 0.26 m have, and these versions have only exemplary character.

Preferably, a surface 9 planar and optionally with a slope in the direction of the longitudinal side end faces 10 . 11 extending in the direction of a base element longitudinal extension 12 run, trained. The gradient can be only a few degrees, for example, between 0.5 ° and 3 °, to drain water.

But it is also possible that this base element 3 is designed so that in a central area 13 an at least approximately planar surface is formed, on which the wall element or elements (e) 8th be arranged, wherein the width of this surface in the direction of the tracks at least approximately the width of the wall elements 8th equal or greater.

However, the base element is preferred 7 integral with the wall element 8th trained, so is in the production with the wall element 8th produced as a part.

The underside of the base element 3 is preferably executed flat to a larger footprint and thus a higher stability of the noise protection device 1 to reach.

After the base element 7 on a gravel bed 14 ( 1 ) of a track system 2 is arranged, it may be advantageous if at the bottom of the base element 7 an elastomer element, for example a rubber mat, or a fleece is arranged, in which the crushed grains can be partially pressed. This elastomer element or fleece may be on the underside of the base element 7 be glued, there is also the possibility that it in the formwork for the preparation of the base element 7 is inserted and thus already connected during production with the concrete base.

The base element 7 has a first end face 14 and a second end face 15 on that along the base element longitudinal extension 12 are formed opposite each other. Like from the 2 and 3 it can be seen, is the first end faces 14 with a first rounding 16 and the second end face with a second rounding 17 formed, wherein the two curves in the direction perpendicular to the base element longitudinal extent 12 run. The first rounding 16 has a first radius of curvature 18 and the second rounding 17 a second radius of curvature 19 on, wherein in this embodiment, the two radii of curvature 18 . 19 parallel to the plane of the surface 9 run like this from the 2 and 3 is apparent.

The two radii of curvature 18 . 19 can be of different sizes, but in the preferred embodiment they have at least approximately the same value, ie are at least approximately on.

It should be noted at this point that by "at least approximately" in the context of the description is meant that deviations within the manufacturing tolerances are permissible. A different meaning is mentioned separately.

The values of the two radii of curvature 18 . 19 can be selected from a range of 0.75 m to 1.5 m, in particular from a range of 0.85 m to 1.2 m. For example, the two radii of curvature 18 . 19 have a size of 1 m.

With the curves 16 . 17 is achieved that the socket element 7 in a noise barrier system 20 , by juxtaposing several base elements 7 arises and, for example, in 7 is shown in sections, in the direction of the base element longitudinal extent 12 have a certain mobility in the horizontal direction, so that a better replica of the curve radius is made possible in particular in the curved area of rails. However, this flexibility is due to the curves 16 . 17 not so big that the pedestal elements 7 From the mutual interference, so that also a stabilization of the noise barrier system 20 is achieved in the longitudinal direction. This in turn achieves the advantage that a connection of the base elements 7 to the rails or sleepers is not required because the base elements 7 of the noise barrier system 20 stabilize itself in terms of their relative position to each other.

The two curves 16 . 17 the faces 14 . 15 can have different radii of curvature 18 . 19 exhibit. However, these two curves preferably have at least approximately the same radii of curvature 18 . 19 on.

In the in the 2 and 3 illustrated embodiment is the first rounding 17 the first face 14 curved inwards, ie concave, and the second rounding 18 the second end face 15 arched outwards, so convex. In the noise barrier system 20 is achieved by the juxtaposition of noise protection devices 1 formed a positive connection by the convex curve 17 a first noise protection device 1 in the concave rounding 16 a second, subsequent noise protection device 1 intervenes.

For the arrangement of the wall element 8th on the base element 7 At least two anchor plates may be provided which are off-center and spaced from the two end faces 5 are arranged as in the AT 508 575 B1 is known, which is expressly incorporated herein by reference, and thus to this extent belongs to the subject matter description.

In the preferred embodiment of this in the 2 and 3 illustrated embodiment, however, is the base element 7 integral with the wall element 8th educated. In particular, these two elements are made of concrete, preferably one, in particular porous, lightweight concrete. But it is also possible that the base element 7 is made of a non-porous concrete on which the wall element 8th is poured from lightweight concrete, including appropriate formworks are used to order a one-piece noise protection device 1 to obtain.

It should be noted that a lightweight concrete is understood to mean a concrete with a maximum volume weight of 2500 kg / m ³ .

The lightweight concrete may have pores of a size selected from a range of 2 mm to 12 mm, in particular from a range of 4 mm to 8 mm. It is also the formation of pores of different sizes of advantage, since thus a wider range of sound frequencies can be covered.

However, it is also possible, the wall element 8th made of a different material, as will be described in more detail below.

To move this noise protection device can at the top of the wall element 8th Lifting eyes 21 arranged, in particular in the wall element 8th be poured.

At least some of the edges of the noise protection device 1 This or all variant (s) may be executed beveled. Likewise, the transition between the wall element 8th and the base element 7 be executed rounded.

In the 4 and 5 such as 6 are variants of the noise protection devices 1 shown in an oblique view and plan view. The show 4 and 5 a first end element 22 and the 6 a second end element 23 of the noise barrier system 20 like this in 7 is shown.

Unlike the embodiment of the noise protection device 1 after the 2 and 3 are these end elements 22 and 23 with wall elements 8th provided, which at least partially have an oblique course. Accordingly, the height takes over the base element 7 of the wall element 8th the embodiment of the noise protection device 1 after the 4 and 5 starting from the end face 15 towards the frontal area 14 to and those of the embodiment according to 8th in this direction, wherein in both variants oblique areas of the wall elements 8th can transition into a horizontally extending area of the top, as in the 4 to 6 is shown.

It should be noted, however, that a separate embodiment of the end elements 22 . 23 Although advantageous, but for these end elements 22 . 23 also the noise protection device 1 after the 2 and 3 can be used.

After these noise protection devices 1 the end elements 22 . 23 of the noise barrier system 20 can form the frontal area 15 of the base element 7 the noise protection device 1 after the 4 and 5 and the frontal area 14 of the base element 7 the noise protection device 1 to 6 straight, ie without curves, be executed, since no further noise protection device 1 positive fit on these faces 14 . 15 is applied. The execution of these faces 14 . 15 with the above-described curves 16 . 17 is possible.

It is further possible that these end elements 22 . 23 shorter than the noise protection device 1 after the 2 and 3 ,

In addition, these end elements can 22 . 23 like the noise protection device 1 after the 2 and 3 be executed, in particular with regard to the choice of material for the base element 7 and the wall element 8th ,

The 7 and 8th show this from several noise protection devices 1 composite noise barrier system 20 in oblique view and top view. In particular, from these figures is also the positive connection of the individual noise protection devices 1 to see.

Although in the 7 and 8th only two noise protection devices 1 after the 2 and 3 as well as the end element 22 can be seen, the number of noise protection devices depends 1 according to the length of the route, with these noise barriers 1 should be equipped so that so the representation in the 7 and 8th is not limiting. In addition, on the left Side in the figures as a conclusion and the end element 23 to 6 be arranged.

The noise protection devices 1 between the two end elements 22 and 23 are not with the railroad track 3 connected. They are also not connected to the thresholds, but are unfounded on the ballast bed, not shown. Only the two end elements 22 . 23 can be preferred with the track rope 3 connected to the relative position of the noise barrier system 20 to the railroad track 3 to fix. A fixation of the further noise protection devices 1 between the end elements 22 . 23 is due to the positive connection between the noise protection devices 1 not mandatory.

The connection of the end elements 22 . 23 with the railroad track 3 - Alternatively, these end elements could 22 . 23 also be connected to one threshold - via one connecting element 24 , For connection of the connecting element 24 to the end element 22 respectively. 23 You can do this with a coupling element 25 respectively. 26 (see also 4 and 6 ) be provided. In the simplest case, these coupling elements 25 . 26 designed as metal strips on which the connecting element 24 is screwed on. The coupling elements 25 . 26 can be on the surface of the base element 7 be attached, for example with screws. Preferably, however, these are inserted into the concrete body of the base element and in particular potted with this and anchored in this, for example with claws, round steel bars, flat steel tongues, etc. These can be these coupling elements 25 . 26 be placed in the mold for the preparation of the base element before it is poured with the concrete.

But there are also other coupling elements 25 . 26 usable, with which the connection between the connecting element 24 and the noise protection device can be manufactured. Optionally, also on the coupling elements 25 . 26 dispensed and the connecting element 24 directly with the noise protection device 1 connected, in particular screwed.

In the 9 to 11 is that variant of the noise protection device 1 to 1 represented, which in the side areas of a track, so not between two tracks, is arranged, ie the so-called field element. Again form several noise protection devices 1 the noise barrier system 20 , Wherein also in this embodiment, the two end elements 22 . 23 (in the 9 to 11 is only the end element 22 shown) and in particular with the connecting element 24 with the track 3 can be connected. Reference should therefore be made to the above statements.

The base element 7 is preferably cast from concrete and designed as a flat element, but may have a smaller width than the base element 7 the embodiment according to the 2 and 3 , Preferably, this width of the top is dimensioned so that in addition to the wall elements 8th a walkway with a width of about 0.75 m can be formed.

In principle, it is possible that in this embodiment of the noise protection device 1 the base element 7 with the wall element 8th is formed in one piece. Preferably, however, the separate version, so that the wall elements, if necessary, can be easily removed, but the new placement by the remaining base element 7 is predetermined, so that the re-installation is easier.

Also this base element 3 For example, the anchor plates as described above may have the wall elements above them 8th that is, to be able to fix the holders for this purpose, the latter not being arranged in a central region, but in the region of one of the longitudinal side edges 27 . 28 , depending on whether the wall element 8th be arranged right or left. The long side edges 27 . 28 extend in the direction of a wall element longitudinal extent 28a ,

However, a variant is preferred in which the wall element 8th laterally on the base element 7 via a carrier element 29 the better it is attached 12 to 15 is apparent. With this carrier element 29 is a holding element 30 connected to that for holding the wall elements 8th serves. The holding element 30 is in particular designed as H-profile carrier, so that the wall elements 8th can be inserted without further fasteners in these. Of course, if necessary, the wall elements 30 but be mechanically and / or positively connected to the support element.

The carrier element is on a side surface 31 of the base element 7 in particular mechanically connected thereto, for example screwed. This side surface is chamfered and jumps inwards, as can be seen from the 9 and 11 is apparent. By this obliquely with respect to the surface of the base element 7 running side surface 31 becomes a better grip of the support element 29 achieved, especially with regard to the suction effect and the thrust of a passing train.

The the track 3 facing side surface 32 is formed starting from the top of the base element at least partially bevelled. This bevel ensures that the base element 7 taking into account the clearance gauge of the rail vehicle (see 1 ) closer to the railroad track 3 can be brought up. It is thus a more efficient sound insulation despite low wall height, these may for example be between 0.7 m and 1.2 m, in particular between 0.8 m and 1 m, of the wall element 8th reached.

The base element 7 this embodiment of the noise protection device 1 thus preferably has a cross section in the form of an irregular pentagon, as is apparent from 11 is apparent.

Also this base element 7 can the lifting lugs 21 exhibit.

In view of the curves 16 . 17 the faces 14 . 15 of the base element 7 , the end elements 22 . 23 reference is made to the above statements.

The wall element 4 itself may be formed of concrete, a rubber granulate / concrete mixture or a composite element consisting of two lateral cover walls with rubber granules arranged therebetween or rubber granules bonded with a binder. There is also the possibility that commercial acoustical nonwovens are arranged to improve the acoustic effect on the side surfaces, in particular those surfaces which face the traffic route.

There is also the possibility that the wall element 4 is formed entirely of a plastic or a hard elastomer or the like.

If a rubber particle / concrete or rubber particles / plastic particles / plastic binder mixture is used, the proportion of rubber particles in this mixture may be selected from a range with a lower limit of 10 vol .-% and an upper limit of 70 vol .-% or from a range with a lower limit of 20% by volume and an upper limit of 65% by volume and / or a range with a lower limit of 25% by volume and an upper limit of 55% by volume.

The rubber particle / concrete mixture may optionally also be added to a binder for plastics or the like. The proportion of the plastic binder in both variants may range between 5% by weight and 25% by weight, in particular between 10% by weight and 15% by weight. As plastic particles z. As particles of PE, PP, PTFE, PVC, etc., in particular recycled materials used. Optionally, the rubber particles / plastic particles / plastic binder mixture also a hydraulic binder such. As cement.

Furthermore, there is a possibility that an average grain size of these rubber particles is selected from a range having a lower limit of 0.4 mm and an upper limit of 4 mm and a range having a lower limit of 1 mm and an upper limit of 3.5 mm or from a range with a lower limit of 1.5 mm and an upper limit of 3 mm.

In the case of a filled with rubber granules wall element 4 For example, this rubber granulate may have a particle size between 0.5 mm and 4 mm. It proves advantageous if different particle sizes of rubber granulate in a wall element 4 For example, grain sizes of 0.5 mm and 2.5 mm and 4 mm to achieve different filling levels and a different acoustic behavior. It is possible that cavities are formed between the individual rubber particles, wherein a void fraction between 5 vol .-%, and 30 vol .-%, based on the total occupied by the rubber granules volume can be. About these cavities, a reduction of the noise level of the side facing away from the traffic is also achieved.

In general, the rubber particles can be provided in the context of the invention with a conventional plastic binder, wherein its proportion between 5 wt .-% and 15 wt .-% may be. Preferably, a polyurethane adhesive is used.

Cement or concrete can in turn be used as the binder, although other binders are also possible in order to produce a self-supporting wall element made from a rubber granulate 8th to obtain.

With regard to the particle sizes of the rubber granules, it is advantageous if these are also used in the rubber particle / concrete mixture.

There is also the possibility that the wall element 8th is constructed differently, so for example made of wood materials, which wood materials in turn can also be designed as composites, for example, with a wooden battens on the two side walls, that is those walls which are the traffic route and turned away, and can between an acoustic filling or a Noise-reducing filling of an insulating material or the like can be arranged.

In the case of filled with rubber granules wall elements 8th there is the possibility that these are also cast, for example, an elastomer, in particular a hard elastomer, or concrete, in which case a corresponding recess is provided between the two side walls, which is subsequently filled with rubber granules.

A preferred embodiment of the wall element 8th provides as filling for the cassettes rock wool.

It is further possible that in or on the wall element 8th a blocking element is arranged against sound waves, for example made of metal, plastic or concrete.

It should be noted that even with variant of the noise protection device 1 after the 2 and 3 , So the center element, such a wall element 8th instead of the one-piece wall element described there 8th can be arranged, although this is not the preferred embodiment of this noise protection device 1 is.

The wall elements 8th are preferably so on the base elements 7 arranged that they have two adjacent base elements 7 overlap, causing the composite within the noise barrier system 20 can be improved. There is also the possibility that the base element 7 has a length in the direction of the track extension, which at least approximately the length of the wall elements 8th in the same direction.

Only for the sake of completeness it should be noted that the two end elements 22 . 23 shorter than the rest of the noise protection devices 1 ,

If necessary, there is also the possibility that the wall element 8th mechanically with the base element 7 is connected.

The base element 7 is preferably not anchored in the ground, so is fundamentally on a gravel bed.

In the 12 to 15 is the carrier element 29 shown in different views. This carrier element 29 consists in particular of a metallic material, preferably of steel. One of the wall element 8th (eg 10 ) repellent outer edge 33 is executed at least partially round, this form is not to be understood as limiting. Rather, angular embodiments, etc., can be used.

Essentially, the carrier element is divided into a lower region 34 and an upper area 35 , The upper area 35 forms a contact surface 36 for the holding element 30 , So for example, the above-described H-profile beam. This contact surface 36 is aligned with its longitudinal extent to the installed state at least approximately vertically.

The lower area 34 again has a connection surface 37 on, over which the carrier element 29 with the base element 7 is connected, in particular with the side surface described above 31 is screwed. This can be done with this interface 37 corresponding breakthroughs 38 exhibit.

The interface 37 is at an angle 39 arranged to the vertical, like this 13 it can be seen that the connecting surface 37 at least approximately flat surface on the side surface 31 of the base element 7 is applied. The angle 39 may be selected from a range of 120 ° to 180 °. Accordingly, the side surface 31 inclined at least approximately with the corresponding angle.

At the top of the carrier element 29 can be a cover plate 40 be provided, with the open-top end of the retaining element 30 can be covered (eg 10 ).

But there is also the possibility that the support element 29 even the holding element 30 for the wall element 8th forms. In this embodiment variant forms the contact surface 36 the central web of the H-shaped cross section. At the back are two contact surfaces 41 . 42 formed by a vertical leg 43 can be formed. Between the lower area 34 and the upper area 33 are bearing surface 44 . 45 formed in the installed state of the support element 29 extend at least approximately in the horizontal direction and a support for the wall element 8th form. The wall element 8th can thus preferably between one of the bearing surfaces 44 . 45 and the cover plate 40 be trapped. After inserting the wall elements 8th in the carrier element 29 can the open to the rear area with another, in particular plate-shaped, cover 46 ( 9 ) are closed, so that in top view again results in an H-shaped cross-section.

The carrier element 29 Can also be part of the grounding of the noise protection device 1 be used.

The 16 to 18 show the connecting element 24 with which the end elements 22 respectively. 23 to the railroad track 3 ( 11 ), in different views.

The connecting element 24 is in particular designed as a clamp and consists essentially of two parts (apart from the illustrated screw connection of these two parts), namely a clamping element 47 and a connection element 48 ,

About the connection element 48 becomes the connecting element 29 with the base element 7 connected. For this purpose, this connection element 48 at the rear end at least approximately L-shaped with an at least approximately vertically aligned legs 49 be educated.

The clamping element 47 is at least approximately bow-shaped or at least approximately formed sled-shaped and has at its front end hook-shaped end portions 50 . 51 on, the the Gleisstrang 3 grip around at the bottom and are hooked to this, as z. B. from the 7 . 9 and 11 is apparent. To achieve the clamping effect is the front end of the connection element 48 formed with a viewed in side view approximately U-shaped cross section and thus forms a clamping element part 52 , The clamping element part 52 has at its front at least approximately vertical leg at least one contact element 53 , For example, a rubber damper, on, in the installed state in the area above the rail foot to the track rope 3 is applied and thus clamps this.

Preferably, this compound is designed so that a certain relative movement between the base element 7 and rail is made possible.

In 19 is a further embodiment of the noise protection device 1 as a central element in the noise protection wall system 20 shown in plan view. This in turn comprises the base element 7 and the wall element 8th , In contrast to the above embodiments, in this embodiment, a base element 7 only convex curves 17 and the adjoining base element 7 only concave curves 16 on, with the radii of curvature turn in terms of their value in all base element 7 preferably the same size.

20 shows a variant of the noise protection device 1 in the noise barrier system 20 in side view with the base element 7 and the wall element 8th , In this embodiment, the curves run 16 . 17 not horizontal but vertical.

It should be noted that, although in the representations in the 19 and 20 the noise protection devices 1 not adjacent to each other are shown, these as in all variants of the noise protection devices 1 abutting each other in the noise protection wall system 20 to be ordered.

In a further embodiment, not shown, there is the possibility that the base element 7 the curves 16 . 17 has running in both the horizontal direction and in the vertical direction, so that an at least approximately spherical portion-shaped surface of the end faces 14 . 15 (eg 3 ) arises.

Generally it should be noted that the curves 16 . 17 be provided with a radius of curvature in all variants, which increases or decreases by the course of the rounding.

Next, in all variants of the noise protection device 1 or the noise barrier system 20 that between the noise barriers 1 on the front surfaces 14 . 15 at least partially, at least one sealing element, for. B. a Compriband N is arranged.

It is advantageous if the base element 7 Grounding connections for electrical grounding has.

The embodiments show possible embodiments of the noise protection device 1 , It should be noted at this point that also various combinations of the individual variants are possible with each other and this possibility of variation due to the doctrine of technical action by objective invention in the skill of those working in this technical field.

For the sake of order, it should finally be pointed out that for a better understanding of the structure of the soundproofing device 1 these or their components have been partially displayed off-scale and / or enlarged and / or reduced.

It should also be noted that parts of the noise protection device 1 or the noise barrier system 20 can form independent inventions. This relates in particular to the design of the base element 7 and / or the wall element 8th made of porous lightweight concrete, the formation of the wall element 8th with rock wool, the connecting element 24 for connection of the noise protection device 1 or the noise barrier system 20 to a rail and the support element 29 for connecting the wall element 8th with the base element 7 ,

LIST OF REFERENCE NUMBERS

1

Noise protection device

2

track system

3

railway train

4

wheel

5

track vehicle

6

distance

7

base element

8th

wall element

9

surface

10

Longitudinal side face

11

Longitudinal side face

12

Base element longitudinal extension

13

mid-range

14

face

15

face

16

curve

17

curve

18

radius of curvature

19

radius of curvature

20

Noise barrier system

21

Lifting eye

22

end element

23

end element

24

connecting element

25

coupling element

26

coupling element

27

Longitudinal side edge

28

Longitudinal side edge

28a

Wall element longitudinal extension

29

support element

30

retaining element

31

side surface

32

side surface

33

outer edge

34

Area

35

Area

36

contact surface

37

interface

38

breakthrough

39

angle

40

cover

41

contact surface

42

contact surface

43

vertical leg

44

bearing surface

45

bearing surface

46

cover

47

clamping element

48

connecting element

49

leg

50

end

51

end

52

Clamping element part

53

contact element

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

• AT 7753 U1 [0003]
• DE 29805730 U1 [0004]
• DE 8528305 U1 [0005]
• AT 10131 U1 [0006]
• DE 4419886 A1 [0007]
• DE 2407281 A1 [0008]
• WO 98/37276 A1 [0009]
• AT 8619 U1 [0010]
• AT 9954 U1 [0011]
• AT 508575 B1 [0012, 0065]

Claims (10)

Noise protection device ( 1 ) for placement on a traffic route comprising at least one wall element ( 8th ) with a wall element longitudinal extent ( 28a ), wherein the wall element ( 8th ) on at least one base element ( 7 ), which has a base element longitudinal extension ( 12 ) in the direction of the wall element longitudinal extent ( 28a ), wherein the base element ( 7 ) a first end faces ( 14 ) and a second end face ( 15 ), and the two end faces ( 14 . 15 ) along the base element longitudinal extension ( 12 ) are opposite one another, characterized in that the first end face ( 14 ) of the base element ( 7 ) with a first rounding ( 16 ) and the second end face ( 15 ) of the base element ( 7 ) with a second rounding ( 17 ), the two curves ( 16 . 17 ) in the direction perpendicular to the base element longitudinal extent ( 12 ). Noise protection device ( 1 ) according to claim 1, characterized in that the first rounding ( 16 ) a conical shape and the second rounding ( 17 ) has a convex course. Noise protection device ( 1 ) according to claim 1 or 2, characterized in that the wall element ( 8th ) and the base element ( 7 ) are integrally formed with each other Noise protection device ( 1 ) according to one of claims 1 to 3, characterized in that the wall element ( 8th ) and / or the base element ( 7 ) consist of a porous lightweight concrete. Noise protection device ( 1 ) according to one of claims 1 to 4, characterized in that the wall element ( 8th ) has a filling of rock wool or rubber granules. Noise protection device ( 1 ) according to one of claims 1 to 5, characterized in that on and / or in the wall element ( 8th ) A blocking element is arranged against sound waves. Noise protection wall system ( 20 ) comprising a plurality of longitudinally consecutively arranged noise protection devices ( 1 ), characterized in that the noise protection device ( 1 ) are formed according to one of claims 1 to 6. Noise protection wall system ( 20 ) according to claim 7, characterized in that the noise protection devices ( 1 ) are positively connected with each other. Noise protection wall system ( 20 ) according to one of claims 7 or 8, characterized in that only the first and / or the last noise protection devices ( 1 ) of the plurality of noise protection devices ( 1 ) at least one connecting element ( 24 ) or with which the noise protection device ( 1 ) is connectable to a threshold and / or a rail of a track. Use of the noise protection device ( 1 ) according to one of claims 1 to 6 as a soundproof wall along a track, wherein the soundproof wall is placed at a distance to the adjacent rail between 50 cm and 120 cm.

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