EP2817456A1

EP2817456A1 - Noise reduction device

Info

Publication number: EP2817456A1
Application number: EP12816644.4A
Authority: EP
Inventors: Thomas Danner; Bernhard Lichtberger; Erich Mayrhofer
Original assignee: ART Asamer Rubber Technology GmbH
Current assignee: SARANUS BETEILIGUNGSVERWALTUNGS GMBH
Priority date: 2011-11-22
Filing date: 2012-11-21
Publication date: 2014-12-31
Anticipated expiration: 2032-11-21
Also published as: WO2013075160A1; CN104169500A; AT512523A4; DK2817456T3; CA2860268A1; RU2014125229A; AT512523B1; US20140353393A1; EP2817456B1; JP2015501894A; ES2570565T3

Abstract

The invention relates to a noise reduction device (1) for arrangement on a traffic route, comprising at least one base element (7) and at least one wall element (8), the base element (7) having an upper side (9) and an underside (15) and the wall element (8) being arranged on the upper side (9) of the base element (7). The underside (15) of the base element (7) is directed at an angle (16) that is inclined relative to the horizontal line.

Description

Noise protection device

The invention relates to a noise protection device for arrangement on a traffic route comprising at least one base element and at least one wall element, wherein the base element has a top and a bottom, and wherein the wall element is arranged on top of the base element, and a track system with rails and at least one noise protection device , which is arranged adjacent to the rails and which has at least one base element and at least one wall element, wherein the rails are arranged by means of sleepers on a ballast bed, and wherein the ballast bed is formed on a planum.

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. But there are also known noise protection devices that can be placed on the ballast bed of a track system without anchoring in the ground, in which case a connection to the sleepers of the track system takes place.

The AT 7 753 Ul 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.

DE 298 05 730 U1 discloses a soundproofing wall for traffic routes with a supporting structure supported on the ground floor, to which prefabricated, sound-absorbing wall elements are fastened. The supporting structure comprises a plurality of prefabricated vertical frames, into which the wall elements can be inserted, and wherein the wall elements consist at least partially of recycled material and / or immobilized waste. WO 98/37276 AI describes a sound insulation device for reducing airborne sound propagation, comprising a track system and extending in track longitudinally 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 the track ( Inside) has a profiling that extends substantially over the entire wall height, while their side facing away from the track (outside) is designed mostly flat surface. The inside is at an angle α and the outside at an angle ß, in each case with respect to the track perpendicular to the track inclined, the angle ß 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 AT 8 619 Ul 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 to protect and dampen the rail and sleeper. 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 AT 9 954 Ul a noise barrier for shielding the noise is known, which occurs by driving on railroad tracks, the height of both sides of a track arranged noise protection wall 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% larger than the width of a Clearance profile of the track, wherein the angle of the track facing side of the noise barrier is in a range of about -15 to +15 ⁰ to the vertical and at a lower, resting on the gravel of the track end of the noise barrier on a side facing away from the track a flank nose is provided with a distant from said side remote nose end, which forms an angle of about 10 ⁰ to about 40 ⁰ with a horizontal.

From AT 508 575 B 1 a protective device for arrangement on a traffic route is known, comprising at least one wall element, wherein the wall element is arranged on at least one base element, which can be arranged without foundation on or adjacent to the traffic route, wherein the base element can be arranged on a ballast bed of a track and is not anchored in the ground, 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.

DE 20 2011 052 057 U1 describes a noise protection device for arrangement on a ballast bed of a track system comprising at least one wall element with a longitudinal wall element extension, wherein the wall element is arranged on at least one base element which has a base element longitudinal extension in the direction of the wall element longitudinal extension, wherein the base element has a first end face and a second end face, and the two end faces are opposite each other along the base element longitudinal extension, and wherein 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 in the direction perpendicular to the base element longitudinal extent.

It is the object of the present invention to provide an improved noise protection device for railways. In particular, it is the object of the invention to provide an improved foundation-less light close noise protection device for railways.

The term "clearance" is to be understood according to the specialist terminology in the field of railway construction (see eg DE 20 2011 052 057 Ul). This object is achieved by the aforementioned noise protection device and the aforementioned track system, wherein it is provided in the noise protection device that the underside of the base element is inclined at an angle to the horizontal, and in the track system, the noise protection device according to the invention and arranged on the planum ,

The advantage here is that the noise protection device can be placed directly on the so-called Planum by the beveled bottom of the base element. Due to the base element, a foundation for the wall elements is not required, so that they can be installed without any foundation. In addition, with the base element safely accessible space next to the tracks achieved, which can also be separated by the wall element of the tracks, whereby the security of the security room can be further increased, especially the suction effect of a passing train not or only reduced to the persons in the security room, for example maintenance personnel for the track section, acts. The base element offers the advantage that these persons can safely and even stand while passing a train, as they do not have to resort to the natural ground next to the track. In particular, this is in areas of routing with an embankment or on slopes advantageous. In addition, this embodiment of the noise protection device in comparison to the variants with direct connection to the sleepers or tracks has the advantage that settlements of the ballast pre-head have no influence on the position of the noise protection device.

According to a variant embodiment of the noise protection device, it is provided that at least one recess is arranged in the underside of the base element. It is thus achieved a better positional stability of the noise protection device on the subgrade, since the at least one recess, the noise protection device can oppose a greater resistance to lateral displacement forces.

The at least one recess may extend from a first longitudinal side surface to a second longitudinal side surface of the base element. It is thus achieved an improved discharge of surface water, this (drainage) recess optionally also in addition to the position stabilization, as stated above. In order to further improve the drainage of the ballast bed, one of the two longitudinal side surfaces of the base element may at least partially be arranged running obliquely to the other longitudinal side surface. The discharge of the water in the direction of the abovementioned recess extending transversely to the longitudinal direction of the base element is thus made possible.

To simplify electrical installations, at least one channel-a so-called cable trough-can be arranged in the base element, which channel is accessible from the upper side of the base element. Its arrangement in the base element has the additional advantage that this channel is not arranged as usual in the prior art directly on or in the planum and thus does not hinder the drainage of the ballast bed.

It can further be provided that the wall element is held by at least one carrier element, wherein the carrier element is adjustable in height and / or formed pivotable relative to the horizontal. This development of the noise protection device whose use in elevated routes despite the arrangement on the ground plan is simplified so that no complex structures in this area of the route are required. At least one base element projection may be arranged on the rear longitudinal side end face of the base element. It is thus achieved a better stabilization of the base element, since this base element projection below or in ballast bedding) can be arranged so that the weight of the ballast on this base element projection in the installed state of the noise protection device loads.

According to a variant of the track system it is provided that the ballast bed extends to the wall element of the noise protection device. It is thus achieved an improved security space in the noise protection device by the connection area to the noise protection device formed planar and thus a safe walk-in area can be provided. In particular, in the case of evacuation of the passengers or for inspections, for example by the driver, this is advantageous because the usually beveled in the prior art side edges of the ballast bed (Schottervorkopf) need not be overcome. Another advantage of this design is that the Noise protection device by the wind and the suction effect of the train in passing can not move to the track in the clearance profile, because it is prevented by the gravel in between.

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 shows a detail of a track system in cross section.

Fig. 2 shows a variant of the base element of the noise protection device in

Front view;

3 shows a further embodiment of the base element of the noise protection device in plan view.

4 shows a further embodiment variant of the base element of the noise protection device in plan view;

5 shows a detail of a track system in cross-section with a variant of the noise protection device;

Fig. 6 shows a variant of the noise protection device in an oblique view from below

Fig. 7 shows a further embodiment of the noise protection device in an oblique view from behind.

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 details selected in the description, such as th, laterally, etc. related to the immediately described and illustrated figure and are to be transferred to a new position in a position change accordingly.

In Fig. 1, a first embodiment of a noise protection device 1 is shown. In particular, this noise protection device 1 is installed as a noise protection wall in the area of a track system 2, wherein, as shown in FIG. 1, the noise protection device 1 has the advantage that it can be brought very close to track strands 3, so that in the range of wheels 4th of rail vehicles 5 and the track strands 3 resulting noise can be effectively insulated even at low height of the noise protection device 1 or can be deflected into a no longer disturbing area.

The noise protection device 1 according to FIG. 1 is, of course, arranged so that unimpeded operation of rail vehicles 5 is made possible, that is to say that it is arranged at a sufficient distance 6 from the moving rail vehicles 5. Due to the construction of the noise protection device 1, this distance 6 can be between 0.5 m and 1.2 m, in particular between 0.7 m and 1 m, so that the noise protection device 1 can be mounted very close to the sound source. The distance 6 is measured between the edge of the outermost, the rails facing edge of the noise protection device 1 and the center of the adjacent rail.

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

Such a wall element 4 may, for example, have a length of up to about 3 m, a width of about 12 cm to about 20 cm and a height of about 80 cm to about 100 cm, these details are not limiting are.

This noise protection device 1 may consist of several parts, in particular the base element 7 and the wall element 8 may represent separate components of the noise protection device 1. The base element 7 is preferably designed as a concrete base in the form of a flat element. For example, such a base element 3 has a width of about 1, 1 m, a length of about 3 m and a maximum height (in the region of the wall elements 8) of up to about 0.53 m, with these versions only have exemplary character.

Preferably, a top surface 9 is planar and optionally with a slope in the direction of a longitudinal side trim surface 10, which extends in the direction of a Sockelelement- longitudinal extent 11 (Fig. 3) formed. The gradient can be only a few degrees, for example, between 0.5 ⁰ and 3 °, to drain water.

But it is also possible that this base element 3 is formed so that in a side region 12, which is then formed on a second longitudinal side trim face 13, an at least approximately flat surface 14 is formed on the wall or the wall element (s). 8 be arranged, wherein the width of this surface 14 in the direction of the tracks at least approximately equal to the width of the wall elements 8 or may be greater.

It is also possible that the base element 7 is formed integrally with the wall element 8. An underside 15 of the base element 7, which forms its footprint is formed at an angle 16 inclined to the horizontal.

The term "horizontal" is understood to mean the plane to which the wall element is oriented orthogonally in a vertical arrangement, as shown in Fig. 1. Minor deviations (in particular up to a maximum of 1 °) in the context of manufacturing tolerances are allowed.

The angle 16 may be selected from a range having a lower limit of 2 ⁰ and an upper limit of 10 °. For example, the angle is 5 °, since this angle 16 essentially depends on the angle of inclination of a so-called plane 17 on which the base element 7 rests. Track systems 2 with ballast bed are usually designed so that under the ballast of the track a planum 17 (for example, a compacted sand-gravel mixture or an asphalt layer) is formed with 5 ° inclination. This planum 17 has among other things the task to increase the carrying capacity of the track structure, it is to increase the frost resistance and it is mainly the precipitation water which laterally drain into the drainage.

In the preferred embodiment of the noise protection device 1 according to FIG. 1, the wall elements 8 are in the immediate vicinity of the rails. In particular, they are at least approximately aligned with the inside, i. pointing to the track strand 3, longitudinal side end face 13 is arranged on the base element 7, wherein they can also be arranged slightly distanced to this longitudinal side end face but in any case in the partial region 12. In other words, the wall elements 8 separate the rail area from the upwardly free outer area of the base element 7. However, it is also the inverted arrangement of the wall elements 8 possible, i. In principle, a central arrangement on the base element 7 is possible, although in this case the base element 7 should be widened, since the freely accessible area of the base element 7, i. the security room of the track system 2, at least 50 cm wide should be. The preferred internal arrangement of the wall elements has the advantage that the ballast cleaning can be performed easily with today's conventional machines.

The base element 7 may have on the underside 15 an elastomeric element, for example a rubber mat, or a nonwoven, in order on the one hand to achieve a greater coefficient of friction and, on the other hand, a better load-distributing effect of the weight of the noise protection device 1 on the plane 17. This elastomer element or fleece can be glued to the underside of the base element 7, it is also possible that it is inserted into the formwork for the preparation of the base element 7 and thus already connected to the concrete base during manufacture.

The two broad-side end faces 18, 19 may be straight as shown in FIG. 3 or provided with a rounding, as shown in Fig. 6 and described in DE 20 2011 052 057 Ul, to which reference is made in this regard. For the arrangement of the wall element 8 on the base element 7, at least two anchor plates can be provided, which are arranged at a distance from the two broad side end faces 18, 19, as is known in the AT 508 575 B 1, to which reference is made in this regard. Support elements for the wall elements can be screwed with these anchor plates. In principle, it is also possible that the support elements are screwed directly without anchor plates with the base element 7 or attached thereto.

The carrier element is designed in particular as H-profile carrier, so that the wall elements 8 can be inserted into this without further connecting elements. Of course, if required, the wall elements 30 can be mechanically and / or positively connected to the carrier element. Likewise, it is also possible to use other carrier elements, for example carrier elements for the lateral connection and arrangement of the wall elements 8 as described in DE 20 2011 052 057 Ul, to which reference is made in this regard. The wall elements 8 can therefore be fixed on the top side 9 of the base element 7 or attached to the longitudinal side end face 13 and can not be arranged standing on the base element 7.

The wall elements 8 and optionally the base element 7 can be made of concrete, preferably of one, in particular porous, preferably open-pored, lightweight concrete. But it is also possible that the base element 7 is made of a non-porous concrete.

It should be noted that a lightweight concrete is understood to mean a concrete with a maximum density of 2000 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 to produce the wall element 8 of a different material, for example, a rubber granulate / concrete mixture or a composite element of two lateral cover walls with interposed rubber granulate or with a rubber granules associated 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 8 is entirely made of a plastic or a hard elastomer or the like.

In addition, there is the possibility that the wall element 8 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 the traffic way and are turned away, and can be arranged in between an acoustic filling or noise-reducing filling of an insulating material or the like. In the case of filled with rubber granulate wall elements 8, there is the possibility that they 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 subsequently filled with rubber granules becomes.

An embodiment of the wall element 8 provides rock wool as filling for the cassettes.

Likewise, there is the possibility that the wall element 8 consists at least partially or completely of a light metal or a light metal alloy, for example of aluminum or an aluminum alloy.

Preferably, a wall element 8 is designed so that it can be lifted by a single person. It is thus achieved that - should no escape doors be provided in the noise protection device, although this is of course possible - the wall elements 8 can be removed if necessary, and thus the security room can be easily achieved. It is also possible that in or on the wall element 8 a blocking element is arranged against sound waves, for example made of metal, plastic or concrete.

The wall elements 8 are preferably arranged on the base elements 7 in such a way that they overlap two adjoining base elements 7, whereby the composite within the noise protection wall 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 corresponds at least approximately to the length of the wall elements 8 in the same direction. If necessary, there is also the possibility that the wall element 8 is mechanically connected to the base element 7.

According to a variant embodiment of the noise protection device 1, provision can be made for at least one recess 20 to be arranged in the underside 15 of the base element 7, as shown in broken lines in FIG. This particular channel-like or groove-shaped recess 20 may extend from the first longitudinal side end face 10 to the second longitudinal side end face 13 of the base element 7. By means of this recess 20 extending in the transverse direction of the track, it is achieved that the surface water flowing into the ballast bed can flow away unhindered. Of course, more than one such recess 20 can be provided on the underside 15 of the base element 7. It is also possible to form this recess (s) 20 for drainage as through holes in the base element 7.

The at least one recess 20 may also be designed in the form of a groove, as shown in Fig. 2. In this case, a plurality of recesses 20 are preferably provided on the underside 15, since with such recesses 20, which may be provided in addition to the recess 20 for drainage or alternatively thereto, the resistance of the base member 7 against lateral displacement forces on the subgrade 17th can be improved. These recesses 20 may have a triangular cross-section, as shown in Fig. 2. But there are also other cross-sectional shapes possible, for example, rectangular or square, etc. These recesses 20 may be designed to extend in the direction of the base element longitudinal extension 11 (FIG. 3) and / or orthogonally thereto and / or transversely to these directions.

Preferably, these last-mentioned recesses 20 extend over the entire length of the base element 7 in the direction of the base element longitudinal extension 11 and / or over the entire width of the base element 7 or from the first longitudinal side end surface 10 to the second longitudinal side end surface 13 and / or of the However, it is also possible that these recesses are not formed continuously. Furthermore, there is the possibility that discrete recesses 20 are provided so that the underside 175 has, for example, a microstructure or macrostructure.

According to another embodiment of the base element, it is possible for the longitudinal side end surface 13 of the base element 7 to be at least partially inclined to the other longitudinal side end surface 10, as shown in FIG. It is thus the discharge of water to the or the recesses 20 on the bottom 15 (Fig. 1) of the base element 7 improved. Although two such recesses 20 are shown in FIG. 3, each with two oppositely inclined regions of the longitudinal side end surface 13, there is the possibility that only one or more such recesses 20 are provided, with a correspondingly tapered region per recess 20 the base element 7 is formed. Likewise, several recesses 20 can be provided per such area. Preferably, the recesses 20 are in the region of the respective location with the smallest width of the base element 7, as shown in Fig. 3.

The inclined formed areas of the longitudinal side end face 13 of the base element need not necessarily be straight. It is also possible that this area or these areas of the longitudinal side end face 13 curved form, so that therefore a "drainage bowl" is formed.

This drainage cup or the inclined area must not be further formed over the entire height of the base element 7, although this is possible. Preferably, this area extends or extend these areas starting from the Un- It is thus achieved that the surface 14 for supporting the wall element 8 over the entire length of the base element 7 has a constant cross section (viewed in plan view). It can further be provided that the inner longitudinal side end face 13 (based on the installation position of the noise protection device 1) is fully inclined against the outer longitudinal side end surface 10 extending, so that the base element 7 is formed in the region of the bottom 15 is tapered, as shown in Fig. 4. In this case, the recess 20 is formed for dewatering in the region of the broad side end face 18 or 19 of the base element 7, depending on the inclination direction of

Longitudinal side end surface 13. The recess 20 may be formed in this case as a chamfer in the lower edge of the broad side end face 18 or 19, wherein it is also possible that the recess 20 is formed by the chamfers of two adjoining base elements 7.

Coming back to the representation in FIG. 1, in the context of a further embodiment variant of the noise protection device 1 in the base element 7 at least one channel 21 can be arranged, which is accessible from the upper side 9 of the base element 7. In particular, this is a cable trough, which is introduced into the accessible area of the base element 7. Such cable troughs are used, for example, for signal cables of railway technology, optical fiber cables, signal amplifiers, etc.

Frequently, in the prior art, such cable troughs are placed in the drainage discharge area of the ballast bed, so that they hinder the drainage of water, which adversely affects the durability of the track system. Of course, this is also disadvantageous for the cables and other electronic devices that are often housed in the cable troughs. With the arrangement of the cable troughs in the base element 7, the disadvantages of the prior art can be avoided. In addition, it should be noted that the channel 21, ie the cable trough, extends over the entire length of the base element 7 in the direction of the base element longitudinal extension 11 (FIG. 3).

The channel 21 is preferably provided with accessible cover plates 22, so that the accessible area of a security space 23, shown in phantom in FIG. 1, is not disturbed. The channel 21 can also be used for other purposes if required.

As already stated above, the wall element 8 is held by at least one carrier element, for example an H carrier profile, into which the wall elements 8 can simply be pushed. According to a further embodiment of the noise protection device 1 can be provided that the support element height adjustable (eg by multiple mounting holes in the support member or telescopically extendable support members) and / or against the horizontal pivotable (for example in the range between 0 ⁰ and 5 ⁰ or 0 ° and 3 °), for which corresponding joints can be provided. It is thus the arrangement of the noise protection device 1 also in excessive

Track areas, especially in curves, allows in which the ballast height of the ballast bed (over the cross section) considered differently high, the total height of the wall elements 8 can be leveled to each other in this way, so that the wall elements 8 right and left of the track system 2 on at least almost the same height and can be aligned vertically in the curve areas.

It is also possible that for fine adjustment of the height leveling between the base element 7 and the wall element 8 and / or between the wall elements 8 distance strips, for example made of rubber, are inserted. Such spacers may also be provided between the carrier element and the base element 7 for the same reason.

It is also possible that for height compensation wall elements 8, in particular made of open-pore concrete, provided with different heights and according to the desired height, optionally combined with the other wall elements 8 in standard module height.

In the preferred embodiment, at least the upper two rows of wall panels 8 (or more than two) are formed of high-absorbency wall panels of standard height (e.g., 500mm).

In the context of the invention it can further be provided that a ballast bed 24 extends up to the wall element 8 of the noise protection device 1, as indicated by dashed lines in FIG. is is, so just above the track rust is eingeschottert, whereby a safe walk-in area in the evacuation of the passengers or for the train driver for inspection within the noise barrier on the track rust is obtained when the train is stationary. The base element 7 can be turned inside out so that from the top of the ballast down to the ground 17 an area of predeterminable height, eg at least 600 mm, is kept free between the outer threshold edge extension and the base element 7 so that ballast cleaning work is carried out without any obstruction by maintenance machines can be.

The design variants of the noise protection device have the advantage that virtually all track construction work can be carried out unhindered (plugging, ballast cleaning, track renewal, leveling, overhead line work, rail processing, etc.). When working in the track without a track barrier, the workers in the work area remove the wall elements 8 and can thus unhindered to train access to the security room. Likewise, in principle can be moved at evacuations. However, it may be provided that soundproof doors are arranged at regular intervals (e.g., 150 m apart) for evacuation purposes. A further advantage of this embodiment is also that the noise protection device 1 can not move to the track in the clearance profile due to wind and suction effect of the train when passing, because it is prevented by the gravel in between. It can further be provided a security room 23, in which people can stand level and secure.

However, it is also possible that the upper side 9 of the base element 7 is designed to extend parallel to the horizontal, so that therefore the underside 15 extends inclined to the upper side 9, in particular the angle described above 16 is formed between top 9 and bottom 15. Further, it is possible that the longitudinal and broad side end faces 10, 13, 18 and 19 are aligned at least approximately vertically. Reference is made to FIG. 5. By this embodiment, it is not necessary that the support member is formed pivotable against the horizontal. In Fig. 6 shows a variant of the noise protection device 1 is shown in an oblique view from below. Shown is the base element 7 with arranged thereon wall element 8. The base element 7 has in the bottom 15 a plurality of recesses 20 which serve the drainage of the traffic route, in particular the railway line, and which are preferably open at the bottom, as shown in FIG is shown. The recesses 20 comprise at least one longitudinal recess 25 and at least one, preferably a plurality of transverse recesses (s) 26.

The longitudinal recess 25 extends from the broad side end face 18 to the Breitseitenstirn- surface 19 in the direction of the base element longitudinal extension 11 of the base member 7. After the longitudinal recess 25 is preferably formed in the broad side end faces 18, 19 open, can this longitudinal recess 25 by the joining of several Base elements 7 a flow connection between the base elements 7 are made. However, it is also possible that the longitudinal recess 25 in the Breitseitenstirnflä chen 18, 19 is formed closed.

The transverse recesses 26 extend transversely, in particular orthogonally, to the at least one longitudinal recess 25 and open into the longitudinal recess 25. The latter can therefore form a collecting channel. Preferably, a plurality of transverse recesses 26 having a different cross-sectional area are arranged or formed in the base element 7. In this case, in order to achieve more reliable drainage, even in the case of a straight longitudinal side face 13 facing the ballast bed 24 (FIG. 1), a plurality of transverse recesses 26 starting in the longitudinal side end face 13 and opening into the longitudinal recess 25 can be arranged on transverse recesses 26, which extend from the longitudinal recess 25 to the second, outer longitudinal side stop surface 10, have a smaller cross-sectional area. Also with respect to the longitudinal recess 25, these internal transverse recesses 26 may have a smaller cross-sectional area. It is advantageous if these inner transverse recesses 26 are arranged at a shorter distance from one another than the outer transverse recesses 26. Preferably, the outer transverse recesses 26 in the region of the broad side end face 18, 19 are arranged, as shown in FIG. 6 can be seen. It should be noted that the terms "inside" are to be understood in relation to the installation position of the noise protection device 1 and denote that region of the noise protection device 1 facing the ballast bed 24 (FIG. 1) or the rails. Accordingly, the terms "outside" and "outside" denote the opposite side of the noise protection device 1.

Although the longitudinal recess 25 and the transverse recesses 26 are shown in Fig. 1 with a semi-circular cross section, there is also the possibility that they have a different cross-sectional shape thereof.

It is within the scope of the invention also possible that on the upper side 9 of the base element 7, a longitudinal groove is formed which extends over the entire length of the base element 7 and which serves to receive the wall element 8, as shown in Fig. 6. This longitudinal groove 27 has a width which is only slightly smaller than the width of the wander element 8 in the same direction, preferably by a maximum of 20%, in particular not more than 10%, wider than the wall element 8. Thus, the stability of the integration can be achieved of the wall element 8 in the base element 7 can be improved.

For the drainage, it is possible that instead of or in addition to the recesses 20 on the underside 15 of the base element 7 in this at least one drainage channel (drainage pipe) is arranged with a closed cross-section. With regard to the orientation of this at least one drainage channel, reference is made to the above statements on the recesses 20 for the drainage. Fig. 7 shows a further embodiment of the noise protection device 1 in an oblique view from behind. In this embodiment variant, the base element 7 has a widened base, in that at least one base element projection 28 is arranged on the longitudinal side end face 13, ie the rear side of the base element 7 facing the ballast bed 24 (FIG. 1), in particular integrally formed with the base element 7 , is. This base element projection 28 extends in the direction away from the longitudinal side end surface 13 of the base element 7. Thus, the base element projection 28 projects beyond the wall element 8 in the direction of the ballast bed 24. It is thus achieved that the base element 7 extends through this at least one base element projection 28 to below the ballast bed 24 (FIG. 1), whereby an additional fixation of the base element 7 by the weight of the ballast of the gravel bed 24, which is arranged on this base element projection 28, can be achieved. The base element projection 28 can extend over only a partial area or over the entire base element longitudinal extension 11 (FIG. 3). It is also possible that several, for example two or three, base element projections 28 are arranged or formed one behind the other in the direction of the base element longitudinal extension 11. It can further be provided that an upper side 29 of the base element projection 28 is inclined downwards, as can be seen in FIG. 7.

The base element projection 28 preferably connects flush to the underside 15 of the base element 7 or is a component of this bottom side 15. However, it is also possible for the base element projection 28 to be offset from the underside 15 in the direction of the height of the base element 7.

For the preferred case that the underside of the base element projection 28 is formed in the plane of the underside 15 of the base element 7, the underside is preferably inclined with the inclination of the underside 15 against the horizontal. It is also preferred in this case if, on or in the underside of the base element projection 28, the at least one recess 20, in particular for drainage of the subgrade, is formed.

It is also possible that the base element projection 28 is still tapered in the front in the direction of the longitudinal side end face 13 of the base element 7 away.

For the sake of completeness, it should be noted that the so-called center element of the noise protection wall, as shown in FIG. 5 between the two track sections, can be designed according to the embodiments shown in AT 508 575 B1 or DE 20 2011 052 057 U1. Reference is made to AT 508 575 B 1 and DE 20 2011 052 057 U1. The above-described embodiments of the noise protection device 1 are used in particular as so-called field elements.

The exemplary embodiments show possible embodiments of the noise protection device 1, wherein it should be noted at this point that various combinations of the individual embodiments are possible with each other and this possibility of variation due to the teaching 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 noise protection device 1, these or their components have been shown partly unevenly and / or enlarged and / or reduced in size.

It should also be noted that parts of the noise protection device 1 or the track system 2 can form independent inventions. For example, an independent invention, the arrangement of the channel 21, ie the cable tray, in the base element 7, in particular in the security room 23 be. Another independent invention may be the arrangement of the noise protection device 1 in the track system 2, as shown in Fig. 1, be. Furthermore, the above-described height compensation can represent an independent invention. In these independent inventions, it is not absolutely necessary that the underside 15 of the base element 7 is formed inclined, but there is also the possibility that the underside extends at least approximately parallel to the horizontal. In the context of these further independent inventions there is also the possibility that the noise protection device is arranged on a fixed roadway. Another independent invention may be the arrangement of the base element projection 28. Reference characterization Noise protection device

track system

railway train

wheel

Rail vehicle distance

base element

wall element

top

Longitudinal side end face Base element longitudinal extension

page range

Longitudinal side face

area

Bottom angle

Planum

Wide side face

Recess channel

cover

security Zone

ballast

Longitudinal recess transverse recess

longitudinal groove

Socks element jump ahead

top

Claims

Patent claims

1. A noise protection device (1) for placement on a traffic route, comprising at least one base element (7) and at least one wall element (8), wherein the base element (7) has a top (9) and a bottom (15), and wherein the Wall element (8) on the upper side (9) of the base element (7) is arranged, characterized in that the underside (15) of the base element (7) is inclined at an angle (16) to the horizontal.

2. noise protection device (1) according to claim 1, characterized in that in the bottom (15) of the base element (7) at least one recess (20) is arranged.

3. noise protection device (1) according to claim 2, characterized in that extending the at least one recess (20) from a first longitudinal side end face (10) to a second longitudinal side end face (13) of the base element (7).

4. noise protection device (1) according to claim 3, characterized in that the second longitudinal side end face (13) of the base element (7) at least partially obliquely to the first longitudinal side end face (10) is designed to extend.

5. Noise protection device (1) according to one of claims 1 to 4, characterized in that in the base element (7) at least one channel (21) is arranged, which is accessible from the top (9) of the base element (7).

6. noise protection device (1) according to one of claims 1 to 5, characterized in that the wall element (8) is held by at least one support element, wherein the support element is adjustable in height and / or formed pivotable relative to the horizontal.

7. Noise protection device (1) according to one of claims 1 to 6, characterized in that at least one Sockelelementvor jump 28 is disposed on the rear side longitudinal side face 13 of the base element.

8. Track system (2) with rails and at least one noise protection device (1), which is arranged next to the rails and which has at least one base element (7) and at least one wall element (8), wherein the rails by means of sleepers on a ballast bed (24). are arranged, and wherein the ballast bed on a Planum (17) is formed, characterized in that the noise protection device (1) according to one of the preceding claims formed and arranged on the Planum (17).

9. track system (2) according to claim 8, characterized in that the ballast bed (24) to the wall element (8) of the noise protection device (1) extends, in particular at least approximately horizontally extending to the wall element (8).