EP1521884B1 - Railway track covering - Google Patents

Description

The invention relates to a track cover with Rail level to be laid cover plates, which one the top this cover plates forming cover layer and one of these Cover layer have mechanically reinforcing reinforcement, wherein the cover layer of a composite material of particulate Supplement and binder is formed.

It is known from WO 97/13037 A track covers above Art known in which one of iron rods or fiberglass rods or CFRP rods or ribbons formed reinforcement entirely in the cover sheet embodying the cover layer is embedded. Total embedding of reinforcement in a top layer caused a relatively large thickness of this cover layer and concomitantly a relatively large amount of top layer material and a correspondingly large weight of the finished Cover plates and also required in the production of cover plates a certain amount of manipulation for positioning the reinforcement in the first not yet hardened Composite material mass. An increased manipulation effort and also an increased cost of materials in the production of cover plates also results from one described in WO 97/13037 A Variant of a track cover, in which the Cover plates have a curved trained cover layer and the underside of this vault with a layer of one elastic material is filled, the reinforcement both in the top layer as well as in the elastic material Layer is provided and fully embedded. Any overloads that have occurred will cause damage Reinforcement can result in a complete embedding The reinforcement can not be readily recognized.

It is an object of the present invention to provide track cover to create the aforementioned type, in which the cover plates have a simple structure, given a given Carrying capacity with a lower than previous concepts Expenditure of composite material find the Auslangen and accordingly also have a lower weight and in terms of joining the reinforcement with the cover layer material one simpler procedure in the context of the production of cover plates achieve.

The track cover according to the invention initially mentioned kind is, as described in the claims, characterized in that the reinforcement of the cover plates with corrosion-resistant or corrosion-protected profile bars is formed, which at a part of its surface in the top layer are embedded and with the rest of their surface on the side of the top layer, which is in the built in the track Condition facing down, left exposed. By This training may be good for the purpose set out above It should also be noted that by the Exposing a part of the reinforcement of the cover plates forming corrosion-resistant or protected against corrosion Profile bars not just a simple hold on them in their Target position in the course of joining with the cover layer material is possible but also in the finished state Cover plates at any time an inspection of these profile bars can be made; as corrosion resistant profile bars can be advantageous fiber-reinforced plastic rods provide; Further favorable embodiments are profile bars made of corrosion-resistant Metal or with one against corrosion protective coating provided metal profile bars; hiebei is in particular non-rusting metal or with one against rusting protective coating provided metal for the profile bars to consider; anti-corrosion coatings may be metallic in nature, e.g. Galvanizing, or coatings made of synthetic resins or lacquer coatings.

A preferred embodiment, which in particular with regard to the production of the cover plates offers advantages is characterized in that the reinforcement of the cover plates with corrosion resistant or protected against corrosion Profile bars is formed, which with a portion of their Cross section are embedded in the top layer and with the remaining part of its cross-section from that side of the cover layer stick out, which in the track built-in state down has. A further advantageous embodiment, in which for the reinforcing bars with a relatively low cost of materials the outcome can be found is characterized that the cover layer on its underside is arched and the reinforcement is corrosion resistant or protected against corrosion profile bars, which on opposite sides of such a curvature in the Cover layer are embedded and under the intervening Part of the vault run free.

With regard to the simplest possible manipulation in the course the production of the cover plates and also in the sense of an advantageous Distribution of acting on the cover plates from the outside Strains on the individual forming the reinforcement Plastic rods is an embodiment of the invention trained track cover advantageous, which characterized is that the reinforcement one with corrosion resistant or grate formed against corrosion protected profile bars having.

With regard to the cover layer or with respect to the formation the cover layer provided composite material is for most cases are cheap if the top layer is made of a concrete is formed. It is both in terms of use a material as cost-effective as possible a simple environmental-neutral manufacturing technology advantageous if the top layer of a cement or a cement-like binder bound concrete is formed. To high strength, special corrosion resistance, short Cycle times in the production and also the possibility To repair damaged panels in an easy way It is beneficial to provide the topcoat from a polymer concrete, in particular polyester concrete formed is. In many cases a favorable combination of Properties of the cover plates can be achieved if one Provides that the cover layer is made of a concrete, its binder next to cement or a cement-like substance also contains a synthetic resin.

The proposed in the subject invention training of reinforcement the cover plates with corrosion resistant or against Corrosion protected profiled bars, which only partially in the Cover layer are embedded, also gives the most advantageous Possibility of reinforcement for mechanical protection of the edge the cover layer over its entire circumference or on a part of the Use circumference and it is a related embodiment characterized in that the reinforcement also the edge the cover layer comprising at least part of the circumference Contains strips.

It is particularly advantageous if a track cover the dynamic behavior of a track compared to the dynamic one Behavior of the track from outside the track cover lying Do not stretch or change as little as possible. It can namely strong differences in the dynamic behavior of each other subsequent track sections when driving on the track with heavy rail vehicles lead to adverse damage. For this reason, it is within the scope of the subject invention particularly advantageous if one provides that between the Rails of the track located cover plates with their the Rail facing edges are supported only on the rails and the space between the rails from rail to rail Bridge rail self-supporting.

Fig. 1 ein mit einer erfindungsgemäß ausgebildeten Gleisabdeckung versehenes Gleis in Draufsicht;

Fig. 2 zeigt dieses Gleis mit Gleisabdeckung im Schnitt gemäß der Linie II-II in Fig. 1;

Fig. 3 zeigt dieses Gleis mit Gleisabdeckung in einem Schnitt gemäß der Linie III-III in Fig. 1;

Fig. 4 zeigt einen Ausschnitt einer Abdeckplatte, wie sie bei der in Fig. 1 dargestellten Gleisabdeckung vorgesehen ist, in einem gemäß der Linie IV-IV geführten Schnitt, wobei der in Fig. 1 mit einem Kreis angedeutete Bereich dargestellt ist;

Fig. 5 zeigt eine andere Ausführungsform eines mit einer erfindungsgemäß ausgebildeten Gleisabdeckung versehenen Gleises in einer zu Fig. 2 ähnlichen Schnittdarstellung;

Fig. 6 zeigt ein Gleis mit einer weiteren Ausführungsform einer erfindungsgemäß ausgebildeten Gleisabdeckung, bei der die Bewehrung der Abdeckplatten ein mit korrosionsbeständigen oder gegen Korrosion geschützten Profilstäben gebildeter Gitterrost ist, in Draufsicht;

Fig. 7 zeigt dieses Gleis in einem Schnitt gemäß der Linie VII-VII in Fig. 6; und

Fig. 8 zeigt einen Teilbereich einer inneren Abdeckplatte der bei diesem Gleis vorgesehenen Gleisabdeckung in einem gemäß der Linie VIII-VIII in Fig. 6 geführten Schnitt, wobei der in Fig. 6 mit einem Kreis markierte Teilbereich dargestellt ist;

Fig. 9 zeigt in vergrößertem Maßstab die Umgebung einer Schiene in einem gemäß Fig. 7 geführten Schnitt;

Fig. 10 zeigt eine Weiterbildung der in Fig. 5 dargestellten Ausführungsform, wobei die Bewehrung auch einen mit korrosionsbeständigen oder gegen Korrosion geschützten Profilstäben gebildeten Gitterrost aufweist; es ist dabei die Umgebung einer Schiene des Gleises in vergrößertem Maßstab dargestellt.

The invention will now be further elucidated by way of example with reference to the drawing in which such examples are schematically illustrated. In the drawing shows

FIG. 1 shows a top view of a track provided with an inventive track cover; FIG.

Fig. 2 shows this track with track cover in section along the line II-II in Fig. 1;

Fig. 3 shows this track with track cover in a section along the line III-III in Fig. 1;

Fig. 4 shows a section of a cover plate, as provided in the track cover shown in Figure 1, in a guided according to the line IV-IV section, wherein the area indicated in Figure 1 is indicated by a circle ..;

Fig. 5 shows another embodiment of a rail track provided with a track according to the invention in a sectional view similar to Fig. 2;

FIG. 6 shows a track with a further embodiment of a track cover designed according to the invention, in which the reinforcement of the cover plates is a grid formed with corrosion-resistant or corrosion-protected profile bars, in plan view;

Fig. 7 shows this track in a section along the line VII-VII in Fig. 6; and

8 shows a partial area of an inner cover plate of the track cover provided in this track in a section according to line VIII-VIII in FIG. 6, wherein the partial area marked with a circle in FIG. 6 is shown;

FIG. 9 shows, on an enlarged scale, the surroundings of a rail in a section according to FIG. 7; FIG.

FIG. 10 shows a development of the embodiment shown in FIG. 5, wherein the reinforcement also has a grate formed with corrosion-resistant or corrosion-protected profile bars; it is the environment of a track of the track shown on an enlarged scale.

In the embodiment shown in Figures 1 to 4 a arranged on a track 1 track cover are between the rails 2, 3 of the track 1 arranged inner cover plates 5 and externally to the rails 2, 3 subsequently moved outside Cover plates 6 are provided. The rails 2, 3 of the track are moved to sleepers 4. The inner cover plates 5 are under Insertion of elastic profiles 7 supported on the rails 2, 3, the outer cover plates 6 are on the one hand with an intermediate layer elastic profiles 7 on the rails 2, 3 and on the other elastic profiles 8 arranged next to the track 1 Foundations 9 supported. The cover plates 5, 6 are located at the level of rails 2, 3.

The cover plates 5, 6 have a cover layer 10, which the Top of these cover plates forms and it has the cover plates a reinforcement mechanically reinforcing the cover layer on. The cover layer is made of a composite material of particulate Supplement and binder formed, one such Composite material e.g. a concrete is. The reinforcement is corrosion resistant or against corrosion protected profile bars 11 formed. These profile bars 11 are on a part of their surface embedded in the cover layer 10 and extend with the Rest of their surface on the in the installed state of the cover plates lower side 12 of the cover plates 5, 6 exposed. It is in this embodiment, e.g. Fig. 4 directly can be removed, a section 13 of the Cross-section of these profile bars embedded in the cover layer 10 and the remaining part 14 of the cross section of these profile bars 11 protrudes from the lower side 12 of the cover layer 10th out.

In the embodiment shown in FIG. 5, similar to the embodiment according to FIGS. 1 to 4, Cover plates 5, 6 are provided, which at the rail level of a Track 1 are laid and on the one hand to the rails 2, 3 of the Track and on the other hand supported on foundations 9. The Cover plates 5, 6 have a cover layer in this embodiment 10, which is formed on its underside 12 arched is, and it has the reinforcement corrosion resistant or against Corrosion protected profile bars 11, which on each other opposite sides 15, 16 of the curved bottom 12 of the Cover layer 10 are embedded in the cover layer 10 and in the intervening part 17 of the vault run freely. There are while the ends 18 of this profile bars 11 in the edge regions of Cover layer 10 embedded and it form the intervening lying parts 19 of this profile bars 11 claimed to train Reinforcement elements, which gives a very good reinforcing effect achieve the reinforcement formed with the profile bars 11 leaves.

It is in both the embodiment of Figures 1-4 as well as in the embodiment of FIG. 5, the cover layer 10th the cover plates 5, 6 at least parallel to the Rails 2, 3 extending edges 10a formed thickened and it is the cover plates 5, 6 at these thickened edges 10a the cover layer 10 supported or stored.

Figures 6 to 9 show a track with an embodiment a track cover, where the cover plates for reinforcement their top layer 10 have a grid 20, the off integrated with each other corrosion resistant or against corrosion protected profile bars 11 is formed. The profile bars 11 are also in this embodiment with a partial section 13 of their cross-section embedded in the cover layer 10 and protrude with the remaining part 14 of their cross section from the bottom 12 of the cover layer 10 out. The grid is off parallel to the rails 2, 3 extending profile bars and off formed transversely to the rails 2, 3 extending profile bars. The trained in the form of a grid 20 reinforcement has in this case, at least on the rail 2, 3 in question facing edge 10a of the cover layer 10 of the respective cover plate a bar 22, these bars 22 on the one hand form an enclosure of the respective edge 10a and on the other hand serve for supporting or storage of the cover plates. in the Specials are in this embodiment, such as e.g. from Fig. 6 and Fig. 7 can be seen arranged between the rails 2, 3 Cover plates each in the form of two plate halves 5a, 5b formed, which hingedly at their sides facing each other are joined together. The edges facing each other 21 of the two plate halves are designed so that in the state shown in Fig. 7, in which the two plate halves together form a continuous plate, a mesh these edges is present, this interlocking a stable position mutual support of two plate halves results in each other. This training of facing edges 21 of the two plate halves can be advantageously realized in the form of edge strips 24, the the reinforcement are provided, as an example in Fig. 7 is shown. To install and remove the between the Rail arranged cover plates, the plate halves 5a, 5b hinged to each other. Analogous to in the embodiment of Figures 1 to 4 and the embodiment According to Fig. 5 is given in this case, that the between the rails of the track located cover plates with their rails facing the edges supported only on the rails are and the space between the rails 2, 3 located 23 cantilevered from rail to rail.

In the embodiment shown in Fig. 10 is the Covering layer 10 of the cover plates 5, 6 similar to the embodiment shaped according to Fig. 5 curved at the bottom 12. The reinforcement has profiled bars 11, which with their ends embedded in the sides of the vault and exposed in between run. It is in Fig. 10 only the embedding of one end 18 of the profile bars 11 can be seen. Furthermore, The reinforcement also has a profile formed from profiled bars Grating 20, which is embedded in the cover layer 10.

Claims (10)

1. A track cover comprising cover slabs to be laid on rail level, said cover slabs having a cover layer forming the upper side of these cover slabs, and a reinforcement mechanically reinforcing this cover layer, said cover layer being formed of a composite material consisting of a particulate aggregate and a binder, characterised in that the reinforcement of the cover slabs (5, 6) is formed by corrosion-resistant or corrosion-protected section rods (11) which, over part of their surface, are embedded in the cover layer (10) and, with their residual surface, extend exposed on that side (12) of the cover layer (10) which faces downwards when installed in the track (1).
2. A track cover according to claim 1, characterised in that the corrosion-resistant or corrosion-protected section rods (11) by a portion (13) of their cross-section are embedded in the cover layer (10) and, by the remaining portion (14) of their cross-section, project from that side (12) of the cover layer which, when installed in the track, faces downwards.
3. A track cover according to claim 1, characterised in that the cover layer (10) is arched at its lower side (12) and the section rods (11) are embedded in the cover layer (10) at mutually opposite sides (15, 16) of such an arch and extend exposed under the intermediate part (17) of the arch.
4. A track cover according to any one of claims 1 to 3, characterised in that the reinforcement comprises a grating (20) formed of the corrosion-resistant or corrosion-protected section rods (11).
5. A track cover according to any one of the preceding claims, characterised in that the cover layer (10) is made of concrete.
6. A track cover according to claim 5, characterised in that the cover layer (10) is made of polymer concrete, in particular polyester concrete.
7. A track cover according to claim 5, characterised in that the cover layer (10) is made of a concrete that is bound with cement or a cement-like binder.
8. A track cover according to claim 5, characterised in that the cover layer (10) is made of a concrete whose binder in addition to cement or to a cement-like substance also contains a synthetic resin.
9. A track cover according to any one of the preceding claims, characterised in that the reinforcement also contains ledges (22, 24) embracing the rim of the cover layer (10) at least over part of the periphery of the latter.
10. A track cover according to any one of the preceding claims, characterised in that in their installed state, the cover slabs (5) present between the rails (2, 3) of the track (1), with their rims facing the rails (2, 3) are supported on the rails only, and self-supportingly bridge the space (23) that is present between the rails from rail to rail.

Images