EP1721045B1 - Noise reducing track covering - Google Patents

Description

The invention relates to a noise-reducing track covering with arranged on the track Eindeckelementen.

From the DE 3 930 498 C1 a greening system for track systems is known in which Eindeckelemente be set up in the form of tubs by means of a larger number of supports on the track next to the rails. This results in a relatively large structural and manipulative effort. The trays are placed at a distance from the rails, and by this distance is a transmission of rail vibrations on the trays ausrüst. In the tubs is a plant rooting layer, with a nationwide dense vegetation of plants can be obtained; it has been shown that such troughs provided with a fouling have good sound insulation properties. Such vegetation can be relatively easily formed by sowing or planting or even under favorable conditions arise by itself.

On the other hand, in the WO 97/45992 Track coverings described, which are formed with Eindeckelementen, which consist at least on its upper side of a plate-shaped, soft sound material. These cover elements are provided at their edges facing the rails with support ribs, which are supported with the interposition of elastic profiles on the rails. Soft materials are usually mechanically sensitive, usually porous, have relatively high production costs and also require increased care when installing in track systems. These properties do not harmonize with the conditions generally encountered in track systems. Due to the pressure loads exerted on committing such acoustically softened flashing elements and due to the effects of forces which occur on the flashing elements as a result of impact or fall of various objects, the same is easily damaged. In addition, undesirable deposits of fine, particulate material tend to occur in the area of railway installations, and such deposits can lead to a sound-absorbing capability of cover-in elements which is achieved by sound-absorbing openings or pores being adversely affected.

It is an object of the present invention to provide a noise reduction track cover, are largely avoided in the disadvantages of the aforementioned type, and which can be created with relatively low structural and assembly technical effort and can achieve even in rough rail stable operation of Eindeckelemente on the track. It should also be changed by the installation of Eindeckelemente the dynamic behavior of the track as little as possible.

The track covering according to the invention is characterized by the features specified in claim 1. Advantageous embodiments are given in the dependent claims.

In the present track covering the support of the Eindeckelemente results from the provided on this covering elements support lugs which engage in the lateral recesses of the rails, in a structurally simple way a very stable fit of Eindeckelemente, whereby the installation of the Eindeckelemente in the track and a possible expansion the same can be easily made for maintenance. The self-supporting bridging of the present between the rails of the respective track space avoids adversely affecting the ballast of the track through the Eindeckelemente and it is thus a detrimental effect on the dynamic behavior of the track prevented. Next appears by the fact that the support of Eindeckelemente only takes place on the rails, a further improvement of the obtained by the plant growth on the flashing elements Störschalldämmung achievable.

A preferred embodiment of the track covering according to the invention is characterized in that laterally arranged on the rails mounting elements have at their respective rail edge facing support lugs which intervene with the interposition of elastomeric profiles in the lateral recesses of the respective rails, these Eindeckelemente only with these support lugs on supported on the rail concerned and are supported on its side facing away from this rail on a foundation located next to the track and the space between the rail in question and the foundation self-supporting bridge.

It is also very favorable, if it is provided that the intended for rooting of plants layer is covered with a fleece. As a result of this measure, both the layer intended for rooting and plants rooted in this layer which penetrate the nonwoven can be protected in a simple manner, and it can in particular be achieved that the material of the rooting layer and also in this layer is rooted Plants are protected against the force exerted by fast-moving rail vehicles suction effect, and it is further ensured in this way that the Eindeckelemente already a short time after the intended for rooting layer has been filled, committed or with light vehicles, eg Lawn mowers, can be driven without incurring disadvantages. For this purpose, it is also provided that the plate-like base of the Eindeckelemente has sufficient at least for walking on and driving on with light equipment dimensional stability.

In order to avoid unwanted accumulation of precipitation water or other liquids on the flashing elements, it is advantageous to provide the flashing elements with drainage openings and / or gutters.

A structurally very simple and even when installed in the track and a possible removal from the track, easily handled embodiment of Eindeckelemente is characterized in that the plate-like base of Eindeckelemente has the shape of a transverse to the rail longitudinal direction U-profile, which consists of a essentially flat bottom plate and at its transverse to the rail longitudinal direction At the edges located, from the bottom plate upstanding flange ribs is formed, wherein the support of Eindeckelemente on the rail side by support tabs, which are formed by the rails facing the ends of the flange ribs.

Another particularly advantageous in terms of handling the installation of the Eindeckelemente in the track and in a possible expansion of Eindeckelemente from the track embodiment of the invention track covering is characterized in that between the rails of the track from rail to rail reaching arranged Eindeckelemente in the form of Part-Eindeckelementen forming element pairs are formed, wherein the partial Eindeckelemente each pair are hinged together and the geometric hinge axis is parallel to the rails. In this embodiment, it is also advantageous if it is provided that the partial Eindeckelemente each pair of elements are supported at their mutually facing edges and hiebei at each partial Eindeckelement along the other Teil-Eindeckelement of the respective pair facing edge meandering alternately successively supporting sections and support portions are provided, wherein the support portions of a partial Eindeckelementes of the respective pair rest on the support portions of the other partial Eindeckelementes and the support portions of the other partial Eindeckelementes of the respective pair on the support portions of a partial Eindeckelementes.

• Fig. 1 ein Gleis, welches mit einer ersten Ausführungsform einer erfindungsgemäß ausgebildeten Gleiseindeckung versehen ist, in einem quer zur Längsrichtung des Gleises geführten Schnitt;
• Fig. 2 eine Variante hiezu, bei der die Basis der Eindeckelemente an ihrer Oberseite muldenförmig geformt ist, in einem analog Fig. 1 geführten Schnitt; die
• Fig. 3 zeigt eine Ausführungsform, bei der die Basis der Eindeckelemente in Form einer Wanne ausgebildet ist, wieder in einem quer zur Längsrichtung des Gleises verlaufenden Schnitt;
• Fig. 4 zeigt eine Ausführungsform, bei der die Basis der Eindeckelemente die Form eines U-Profils aufweist, in einem quer zur Längsrichtung des Gleises verlaufenden Schnitt und
• Fig. 5 zeigt diese Ausführungsform in einem in Längsrichtung des Gleises verlaufenden Schnitt gemäß der Linie V-V in Fig. 4;
• Fig. 6 zeigt eine Ausführungsform, bei der die Eindeckelemente der Gleiseindeckung in Form von Teil-Eindeckelementen ausgebildet sind, welche paarweise zusammengefügt sind, in einem quer zur Längsrichtung des Gleises verlaufenden Schnitt und
• Fig. 7 zeigt diese Ausführungsform in einer Schrägansicht in aufgefaltetem Zustand, wie er sich beim Einbau oder Ausbau der Eindeckelemente ergibt.

The invention will now be explained below with reference to the drawing, are schematically illustrated in the embodiments of the subject invention. In the drawing shows

• Fig. 1 a track, which is provided with a first embodiment of a rail track formed according to the invention, in a cross-section to the longitudinal direction of the track;
• Fig. 2 a variant of this, in which the base of the Eindeckelemente is trough-shaped on its upper side, in an analogous manner Fig. 1 guided section; the
• Fig. 3 shows an embodiment in which the base of the Eindeckelemente is formed in the form of a trough, again in a direction transverse to the longitudinal direction of the track section;
• Fig. 4 shows an embodiment in which the base of the Eindeckelemente has the shape of a U-profile, in a transverse to the longitudinal direction of the track section and
• Fig. 5 shows this embodiment in a running in the longitudinal direction of the track section along the line VV in Fig. 4 ;
• Fig. 6 shows an embodiment in which the Eindeckelemente the track covering are formed in the form of partial Eindeckelementen, which are assembled in pairs, in a transverse to the longitudinal direction of the track section and
• Fig. 7 shows this embodiment in an oblique view in unfolded state, as it results during installation or removal of Eindeckelemente.

At the in Fig. 1 shown track 1, the rails 2, 2 'of the track with rail fastening elements 3 are mounted on sleepers 4, which in turn are mounted on a ballast bed 5. This track is provided with an embodiment of a rail track formed according to the invention, which is formed with covering elements 6 arranged between the rails 2, 2 'and with covering elements 7 subsequently arranged on the rails 2, 2'. The Eindeckelemente 6, 7 have a plate-like base 8 and at the top 9 a plant rooting layer 10 for rooting of plants. In this layer 10 roots plants 11, which may be grasses, for example, are indicated. The plate-like base of Eindeckelemente 6 has edge strips 12 which limit the rooting provided for layer 10 to the track grooves 13 out; These edge strips 12 may be integrally formed on the base 8 or attached to this. Edge strips 12 'are provided in an analogous manner in the cover elements 7, which delimit the layer 10 provided for rooting with these cover elements at the edges of the cover elements 7 extending in the longitudinal direction of the rail.

Plant growth may also be cut frequently to suit the conditions of rail traffic, with corresponding machines e.g. can ride on the track. Various materials can be used to form the rooting plant. For example, In addition to soil, humus and sand also granular materials such. Clay or rock particles or plastic granules, in question and also foam in plate or in particle form. By the base of Eindeckelemente while a clear separation between this provided for rooting of plants layer and the track bedding is given, and it can not adversely affect the vegetation and the fine material which forms the intended for rooting of the plant layer, the track bedding , The material which forms the intended for rooting of plants layer can be applied to already laid base parts of Eindeckelemente, which simplifies laying, since the, provided by the rooting of plants layer, resulting weight load when laying the Eindeckelemente eliminated. Due to the constant growth of the vegetation a regeneration of the sound insulating properties is given even after disturbing influences.

The rails 2, 2 'facing edges 14 of Eindeckelemente 6, 7 are in the form of support tabs 15 which are supported with the interposition of elastomeric profiles 16 on the rails. In this way, the Eindeckelemente 6 are mounted only on the rails 2, 2 'and bridge the space 17 between the rails 2, 2' cantilever from rail to rail. The covering elements 7 are supported on their side facing away from the respective rail 2, 2 'with the inclusion of elastomer profiles 19 on foundations 18 located next to the track, whereby a cantilevered bridging of the respective rail 2, 2' to the relevant foundation 18 is present. In the longitudinal direction of the track, a plurality of cover elements 6, 7 are subsequently arranged one after the other. It can be provided at the transverse to the longitudinal direction of the track edges of Eindeckelemente at the base 8 edge strips that limit the intended for rooting layer 10 in the individual Eindeckelementen, or one of several Eindeckelemente provide continuously extending layer 10, wherein the Eindeckelemente 6, 7 are to be laid in successive sequence and at best remaining narrow gaps between successive Eindeckelementen bridged with a cover strip or a joint filler can be closed.

It is advantageous to arrange a fleece 20 on the rooting provided for layer 10, since in this way the layer 10 and the plant vegetation 11 is stabilized against external influences. For the discharge of liquid substances which act on the Eindeckelemente, which rainwater is to count among these influences, 7 drainage openings 21 are provided in the base 8 of the Eindeckelemente.

The illustrated construction of the track 1 on a ballast bed 5 is to be regarded as an example. There are also other embodiments of the substructure in question.

At the in Fig. 2 illustrated variant of the embodiment according to Fig. 1 is from the track covering only one between the rails 2, 2 'of the track arranged Eindeckelement 6 shown. It is also possible, of course, for this variant to be provided on the rails 2, 2 'of the track, which are subsequently arranged on the rails. The illustrated base 8 has on its top 9 troughs 22, which are separated by ribs 23 from each other. By this trough-shaped formation of the top 9 of the base 8 of the Eindeckelemente 6 a good grip of the rooting plant provided for layer 10 is achieved on the basis of 8. It is also at this in Fig. 2 variant shown in the base 8 drainage holes 21 are provided. If desired, it is also possible to arrange a fleece on the layer 10 provided for rooting plants 11.

At the in Fig. 3 embodiment shown, the base of Eindeckelemente in the form of a trough 25 is formed and these troughs 25 are each filled with the provided for rooting of plants 11 layer 10. There are at the edges 14 of the trough 25 support tabs 15 formed, which are supported by the insertion of elastomeric profiles 16 on the rails 2, 2 ', and it are in this way the Eindeckelemente 6 of the track covering only on the rails 2, 2 'supported and bridge the space 17 between the rails from rail to rail self-supporting. The trays 25 are provided with drainage holes 21.

In the in the Fig. 4 and 5 illustrated embodiment of an inventive track covering the plate-like base 8 of the Eindeckelemente 6 is formed in the form of a transverse to the rail longitudinal direction U-profile 27. This U-profile is formed from a substantially flat bottom plate 28 and flange ribs 29, which attach to the transverse to the rail longitudinal direction edges of the bottom plate 28 and projecting from the bottom plate 28 upwards. There are these Eindeckelemente 6 with support lugs 30 with the interposition of elastomeric profiles 16 only on the rails 2, 2 'mounted and bridge the space 17 between the rails from rail to rail self-supporting. The support lugs 30 are formed only by the rails facing the ends of the flange 29. The space present in the U-profile 27 between the flange ribs 29 is filled with the layer 10 provided for rooting the plants 11. For the discharge of liquid substances, drainage channels 24 are provided in this embodiment, which lead to discharge openings 21 or can also lead directly to the outside. Such gutters 24 are advantageously formed streamlined.

In the in the 6 and 7 illustrated embodiment of an inventive track covering, arranged between the rails 2, 2 'of the track Eindeckelemente in the form of partial Eindeckelementen 31, 31' are formed, which together form element pairs. The partial cover elements 31, 31 'of each of these pairs are hinged together, the geometric hinge axis 32 being parallel to the rails 2, 2'. There are the Teil-Eindeckelemente 31, 31 'of each pair of elements at their mutually facing edges 33, 33' supported each other. In this case, meandering alternately successively support sections 34 and 34 'and support sections 35 and 35' are provided along each of the other part-Eindeckelement along the other part-Eindeckelement of the respective pair facing edge. The support portions 35 of a partial Eindeckelementes 31 of the respective pair are on the support portions 34 'of the other partial Eindeckelementes 31' of the respective pair and there are the support portions 35 'of the other partial Eindeckelementes 31' of the respective pair on the support portions 34 of a partial Eindeckelementes 31 of the respective Couple on. The partial cover elements 31, 31 'are connected in pairs in such a way to a plate-like element, which in the leveled position, as in Fig. 6 not only loads originating from the rooting layer 10 and plants 11 rooted therein, but also external loads such as those occurring when boarding or driving on such a track covering. The base of the sub-Eindeckelemente 31, 31 'is in the in the 6 and 7 illustrated case in the form of a respective tub 36 and it is these trays 36 with support tabs 15 which are integrally formed on the rail side edge of the respective tub, with the interposition of elastomeric profiles 16 on the rails 2, 2 'stored. The space 17 between the rails 2, 2 'is bridged cantilevered from rail to rail. The planting 11 formed by the plants 11 and extending over the top of the sub-roofing elements is in FIG Fig. 7 For the sake of simplicity, indicated in the form of a geometric pattern. By the in Fig. 7 shown possibility to unfold the partial Eindeckelemente each pair hinged, the insertion of these Eindeckelemente in the track and possibly to be carried out removing the Eindeckelemente from the track is much easier.

For the sake of simplicity are in the in the Fig. 3 to 7 illustrated embodiments of the present invention designed track covering only the arranged between the rails 2, 2 'of a track Eindeckelemente shown. But you can also provide in these embodiments outside the rails of the track then arranged Eindeckelemente.

Claims (7)

1. A noise-reducing track covering including covering elements (6, 7) arranged on a track (1) and having a plate-like base (8) on whose upper side (9) a plant rooting layer (10) is provided, characterized in that the covering elements (6, 7), to the extent arranged between the rails (2, 2') of the track (1), comprise on their edges (14) facing the rails (2, 2') support noses (15; 30) engaging in the lateral recesses of the rails (2, 2') via interposed elastomer profiles (16), wherein the covering elements (6) are supported on the rails only by said support noses and self-supportingly bridge the space (17) between the rails, from rail (2) to rail (2').
2. A track covering according to claim 1, characterized in that covering elements (7) arranged to externally adjoin the rails (2, 2') comprise on their edges (14) facing the respective rails (2, 2') support noses (15) engaging in the lateral recesses of the respective rails (2, 2') via interposed elastomer profiles (16), wherein the covering elements (7) are supported on the respective rail only by said support noses and, on their sides facing away from said rail, are supported on a pedestal (18) located beside the track and self-supportingly bridge the space between the respective rail and the pedestal.
3. A track covering according to claim 1 or 2, characterized in that the layer (10) provided for the rooting of plants (11) is covered by a non-woven fabric (20).
4. A track covering according to claim 1 or 2, characterized in that the plate-like base (8) of the covering elements (6, 7) has a dimensional stability at least sufficient for walking thereon and for travelling thereon with light equipment.
5. A track covering according to any one of claims 1 to 4, characterized in that the plate-like base (8) of the covering elements (6, 7) has the shape of a U-profile (27) extending transversely to the longitudinal direction of the rails, which U-profile is comprised of a substantially plane bottom plate (28) and flange ribs (29) projecting upwardly from the bottom plate (28) and provided on the plate edges extending transversely to the longitudinal direction of the rails, wherein the support of the covering elements on the side of the rails is provided by support noses (30) formed by the ends of the flange ribs (29) facing the rails.
6. A track covering according to any one of claims 1 to 4, characterized in that the covering elements (6) arranged between the rails (2, 2') of the track to extend from rail to rail are formed of partial covering elements (31, 31') forming element pairs, the partial covering elements of each pair being joined together in a hinge-like manner and the geometric hinge axis (32) extending in parallel with the rails.
7. A track covering according to claim 6, characterized in that the partial covering elements (31, 31') of each element pair are supported on each other on their edges (33, 33') facing each other, and carrying sections (34, 34') and supporting sections (35, 35') are provided on each partial covering element (31, 31') in meander-like alternating succession along the edge facing the other partial covering element of the respective pair, the supporting sections (35) of one (31) of the partial covering elements of the respective pair resting on the carrying sections (34') of the other (31') of the partial covering elements, and the supporting sections (35') of the other (31') of the partial covering elements of the respective pair resting on the carrying sections (34) of said one (31) of the partial covering elements.

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