EP1861545B1 - Track system and concrete slab of a fixed track - Google Patents

Abstract

The invention relates to track system having two substantially parallel tracks (6) which are disposed on respective concrete slabs (1) of a fixed track. The slabs (1) comprises a plurality of track supports (2, 2′) for receiving and fastening thereon two parallel rails (5). The top surfaces (3) of the slabs (1) of the two tracks (6) are inclined independent of the a guiding system of the tracks (6) and of the corresponding position of the rail supports (2, 2′) relative to the two outer sides (8) of the track system and form a slope. The invention also relates to a concrete slab of a fixed track, which comprises supports (2, 2′) for the first rail (5) which are higher in relation to the top surface (3) of the slab (1) than the supports (2, 2′) for the second rail (5).

Description

The present invention relates to a track system with two substantially parallel tracks, which are each arranged on concrete slabs of a slab track and the plates have a plurality of rail support points for the storage and attachment of two mutually parallel rails and a corresponding concrete slab of a slab track.

If tracks are routed in a conventional way on a ballast superstructure, the rainwater seeps through the track ballast and is led to the outside on a surface protection layer. A congestion of rainwater in the area of the tracks is thus largely avoided. However, railways on a ballast track are disadvantageous for high-speed rail traffic, which is why here usually a slab track is used. In the case of slab track, a hydraulically bound support layer is built directly onto the protective layer. On the support layer then the slab track is laid, which is made either of in-situ concrete or precast slabs. In the case of slab tracks made of cast-in-situ concrete, prefabricated sleepers or points of contact are often laid accurately and finally cast with in-situ concrete. If the slab track is manufactured from precast concrete slabs, these already have rail supports. The precast concrete panels are finally laid on the hydraulically bound base course and fixed.

In both types of production in the area of transition arches and radii, the slab track is built with superelevation, ie, that of the in-situ concrete or delivered as a precast concrete slab of the slab track inclined to a suitably prepared support layer is constructed. In a track system, which usually consists of at least two largely parallel tracks, thus precipitation water, which impinges on the track located inside the bow, flow to the inner outside of the track system, the rain water, which hits the outer track, however, in the middle area flow between the two tracks. From this center area it must be derived by means of a drainage device under the slab track.

If the slab track is rebuilt, this is not a big problem structurally. If a track system to be converted from a ballast track to a slab track, but this can be difficult, since usually the driving is to be largely maintained and larger conversion measures can not be realized therefore.

US-A-5,163,614 shows a generic slab track according to the preamble of claim 1.

Object of the present invention is thus to accomplish the drainage of a track system with slab track without the usual center drainage.

This object is achieved with a track system or a concrete slab according to the independent claims.

In a track system according to the invention two substantially parallel tracks are each arranged on concrete slabs of a slab track. The plates have a plurality of rail supports for the storage and attachment of two mutually parallel rails. The tops of the plates of both tracks are inclined regardless of the track guidance of the tracks and the associated position of the rail support points to the two outer sides of the track system and form a slope. This ensures that precipitation water acting on the track system is discharged substantially to the outside. The rainwater does not collect between the two parallel running tracks and therefore does not have to be removed from there. A central drainage system is no longer required. This offers particular advantages in the conversion of an existing ballast track in a track system with a slab track, especially if the conversion is to be performed quickly and possibly while maintaining the driving of at least one track.

When the track in the curve area is elevated, the curve-outside rail of a track is higher in its level than the curve-inside rail. In conventional slab tracks, the plate on which the rails are mounted, laid in the same elevation. This causes precipitation water to flow toward the inside of the curve. In the case of track systems with at least two parallel tracks, this means that although the track inside the track directs the rainwater to the inside of the track system, the track outside the track leads the rainwater into the middle area between the two tracks. From there it must be removed by means of a drainage device. According to the invention it is now proposed that in such a case, the curve outer track has a plate which is executed against the rail elevation and thus has a slope to the outside of the track outside the track. Impact water falling onto this plate is thus not directed into the middle area, but to the outside of the track system on the outside of the curve. The inclination of the top plate and the rail cant are thus carried out in opposite directions.

In general, the invention can therefore be described so that the inclination of the top of the plate designed independently of the rail support points for the elevation of the rail guide and always so that when a laid plate sufficient slope to the outside edge of the track is formed.

The board for the inside track can be designed in a conventional manner with an elevation, which gives a sufficient slope for water drainage, wherein the elevation of the track guide runs parallel with the top of the corresponding concrete slab. At a very low elevation but can also be provided here that the top of the plate is more inclined than the elevation of the track guide, so that a rapid drainage of the track system takes place to the outer sides of the track system out.

Advantageously, the top of each plate is formed so that it forms a drainage device to the outside of the track system. It is possible that the top of the plate is flat. But there are also individual, different inclinations on the top of the plate possible, which collect the rainwater and dissipate at one or more defined points of the plate to the outside of the track system. It is essential that the precipitation water accumulating on the plate is largely prevented from flowing into the central area of the track system. There are therefore appropriate measures to be taken in the design of the top of the plate, that the water can flow as freely as possible and quickly to the outside of the track system.

In order to prevent precipitation water accumulating in the middle region between the two tracks, it is advantageously provided that the middle region between the plates of the tracks has a gradient at least towards one of the outer sides of the track system. As a result, the rainwater is reliably discharged from the middle area.

In order to avoid congestion of the rainwater between the central region and the tracks, it is advantageously provided that the central region is at least as high as the upper side of at least one row of the plates. The rainwater is thereby discharged across the top of the plates away to the outside of the track system.

A concrete slab according to the invention of a slab track has a multiplicity of support points for the mounting and fastening of two mutually parallel rails which project beyond an upper side of the slab. According to the invention, the support points for the first rail are formed higher with respect to the upper side of the plate than the support points for the second rail. As a result, an increase in the routing of the track relative to the top of the plate is obtained. The top of the plate forms a slope, which is inclined regardless of the required elevation of the route to the outsides of the later track system out. While conventionally the upper side of the plate has been designed such that the individual support points project substantially equidistant over the upper side of the plate, the upper side is now carried out depending on the required routing. Essential for the design of the top of the plate is the ability that the rain water can flow against the elevation of the route and thus when laying the plate creates a gradient in which rainwater towards the over-elevated rail and thus be discharged to the outside of the track system can.

Advantageously, the top of the plate forms a slope, which is opposite to the elevation of the route. The slope must be carried out at least on a part of the top of the plate accordingly, to collect the precipitation water and supply this slope distance, so that it can be derived at this point of the plate.

In a particularly simple embodiment of the plate, this is carried out substantially with a constant thickness. The manufacture, transport and installation of such a plate is thereby simplified. The plate is according to the invention then constructed so that the plate of constant thickness has support points, which protrude for the first rail at a predetermined height above the surface of the plate, while the bases for the second rail protrude with a deviating from the first height second height above the top of the plate. The plate itself thus has a substantially rectangular cross-section.

It is particularly advantageous if the plate is a precast concrete part. As a result, the production of concrete slab is standardized and made possible under constant environmental conditions. The corresponding prefabricated precast concrete part is then integrated into the track system at the construction site. Alternatively, it is possible that the rail supports are laid individually or in the form of concrete sleepers and then the concrete slab is made with in-situ concrete. Again, the invention provides that the inclination of the in-situ concrete layer with respect to the rail cant of rail supports is independent and is designed so that a flow of rain water to the outside of the track system is made possible.

The rail supports are advantageously arranged discontinuously on the plate. The rainwater can flow off between the individual rail support points over the top of the plate. The gaps are large enough to be able to dissipate the usually expected amount of rain quickly to the outside of the track system.

Figur 1

eine schematische Darstellung einer horizontalen Schienenführung;

Figur 2

eine schematische Darstellung einer überhöhten Schienenführung;

Figur 3

eine schematische Darstellung einer überhöhten Schienenführung mit verringertem Gefälle;

Figur 4

eine schematische Darstellung einer überhöhten Schienenführung mit vergrößertem Gefälle;

Figur 5

ein Ausführungsbeispiel einer erfindungsgemäßen Platte mit einzelnen Stützpunkten;

Figur 6

ein Ausführungsbeispiel einer Platte mit schwellenartigen Stützpunkten;

Figur 7

eine erfindungsgemäße Gleisanlage;

Further advantages of the invention are described in the following exemplary embodiments. It shows:

FIG. 1

a schematic representation of a horizontal rail guide;

FIG. 2

a schematic representation of an elevated rail guide;

FIG. 3

a schematic representation of an elevated rail guide with reduced slope;

FIG. 4

a schematic representation of an elevated rail guide with increased slope;

FIG. 5

An embodiment of a plate according to the invention with individual bases;

FIG. 6

an embodiment of a plate with threshold-like support points;

FIG. 7

a track system according to the invention;

FIG. 1 shows a schematic representation of a horizontal rail storage. The dashed arrow lines H and V represent the horizontal and vertical direction. On a concrete slab 1 rail supports 2 and 2 'are arranged. The rail supports 2 and 2 'extend along the horizontal line H, so that the later on the rail support points 2 and 2' mounted rails are also arranged horizontally to each other. The concrete slab 1 has an upper surface 3 which is inclined at an angle α with respect to the horizontal line H. The angle α represents the slope of the plate 1, thereby allowing rainwater to drain from the plate 1 in the direction of the rail base 2 '. Thus, although the course of the two mutually parallel rail support points 2 and 2 'is horizontal, the drainage of the precipitation water is nevertheless caused by means of the surface 3 of the plate 1 to a defined outside. The bumps of the rail support points 2 'are accordingly higher in relation to the surface 3 than those of the rail support points 2.

FIG. 2 shows a schematic representation of a concrete slab 1 according to the invention, in which the route is excessive. In particular, in curves while the curve outer rail is arranged higher than the curve inner rail. According to the present illustration of the FIG. 2 Here, too, the rail support 2 is lower with respect to the horizontal H than the rail support 2 '. As a result, an elevation angle β results for the two rails. As well as in FIG. 1 is also in the presentation of FIG. 2 lowered the plate 1 relative to the horizontal H with the angle α. As a result, an angle α, which forms a gradient of the upper side 3 of the plate 1 relative to the horizontal H, results opposite to the superelevation angle β. Thus, although the track on the rail supports 2 and 2 'is inclined towards the center of the curve, the top 3 of the plate 1 is inclined to the outside of the curve. As a result, rainwater can flow out to the outside of the track system.

In the FIGS. 3 and 4 Further embodiments and arrangements of the inventive concrete slabs 1 are shown. FIG. 3 shows an elevated rail guide with a β reduced over the elevation angle β gradient angle. In FIG. 4 is a schematic representation of an elevated rail guide shown with increased slope angle α. In any case, therefore, the slope can be selected according to the respective requirements and regardless of the elevation of the tracks.

FIG. 5 shows an embodiment of a concrete slab 1, which is manufactured as precast concrete. A plurality of these plates 1 is strung together and connected to each other, so that a continuous solid roadway is formed. On the plate 1, a plurality of rail supports 2 and 2 'are arranged. In each case, a rail is mounted discontinuously on the rail supports 2 and 2 '. Due to the inclination of the upper side 3 of the plate 1 relative to the horizontal H, water can drain between the individual support points to the side of the higher support points 2 '. A drainage on the side of the lower rail supports 2 is not required.

FIG. 6 shows a further embodiment of a concrete slab according to the invention 1. Here are threshold-like rail supports 2, 2 'on the upper side 3 of the plate 1 is arranged. Rainwater flows through the inclination of the upper side 3 relative to the horizontal H between the individual threshold-like rail support points 2, 2 ', as described above, from.

In FIG. 7 a track system 4 according to the invention is shown. The track system 4 consists of two mutually parallel concrete slabs 1, which each have a plurality of rail supports 2 and 2 '. The surfaces 3 of the plates 1 are each inclined so that rain water can drain to the outside of the track system. On the rail supports 2 and 2 'rails 5 are attached. In each case two rails 5 on a plate 1 form a track. 6 The tops 3 of the two plates 1 are inclined so that they are facing away from each other. This causes precipitation water to flow into the outer regions 8 of the track system 4. There, the rainwater can seep or be discharged in each case a drainage system. Water from a central region 9 between the two tracks 6 flows over the tops 3 of the plates 1 also to the outer regions 8. For this purpose, a hydraulically bonded support layer 10, on which the plates 1 are laid, laterally of the plates 1 arranged so high that the rain water flow largely without backwater from the central region 9 on the top 3 of the plate 1 and can finally reach the outside area 8. The middle region 9 is stepped therefor, wherein one side of the step is carried out substantially flush with the top 3 of the plate 1 shown on the left and the lower step is substantially flush with the top 3 of the right plate 1.

The illustrated concrete slabs 1 can be manufactured both as precast concrete as well as in-situ concrete construction or a combination thereof. After the angle β of the superelevation and the angle α of the upper side 3 of the plate 1 in bending to a horizontal are independent of each other, of course, a construction is possible in which both α and β have the same direction of inclination. This can be particularly advantageous if the rail cant is low, but for a reliable flow of rain water, a greater gradient is required. Although the invention is intended primarily to eliminate central drainage, applications for the concrete slab 1 according to the invention are also possible in which the upper sides 3 are inclined in the direction of the center of the track system 4 and the drainage takes place via the central region 9. The inclination of the upper side 3 can be performed so strong regardless of the inclination of the track 6, that a rapid drainage of the slab track takes place. In most cases, however, it will be so that the intended rail cant is smaller than the actual elevation of the rail supports on the top 3 of the concrete slab 1. Here, when installing the concrete slab 1 in the track system a greater slope of the top 3 relative to the horizontal H causes as alone could be achieved by the rail cant.

The present invention is not limited to the illustrated embodiments. Rather, numerous modifications within the scope of the claims are possible and are also within the scope of the invention.

Claims (10)

1. Track system with two tracks (6) that run largely parallel to one another, in each case arranged on concrete slabs (1) of a fixed track, with the slabs (1) having numerous rail supports (2, 2') for laying and fastening two rails (5) running parallel to one another, characterized in that the top surfaces (3) of the slabs (1) of both tracks (6) are inclined towards both external sides (8) of the track system (4) regardless from the guiding system of the tracks (6) and the location of the rail supports (2, 2') associated with it and create a slope .
2. Track system according to the previous claim characterized in that the top surfaces (3) of the slabs (1) are a drainage device towards the external side of the track system (4).
3. Track system according to one of the previous claims characterized in that the middle area (9) between the slabs (1) of the tracks (6) forms a slope towards at least one of the external sides (8) of the track system (4) for diverting rainwater from the middle area (9).
4. Track system according to one of the previous claims characterized in that the middle area (9) that is at least as high as the top surface (3) of at least one row of the slabs (1) for diverting rain water over the top surface (3) of the slabs (1).
5. Concrete slab of a fixed track with numerous supports (2, 2') for laying and fastening two rails (5) running parallel to each other that jut out over the top surface (3) of the slab (1) characterized in that - with respect to the top surface (3) of the slab (1) -, the supports (2, 2') for the first rail (5) are executed higher than the supports (2, 2') for the second rail (5) and the top surface (3) of the slab (1) forms a slope that slopes towards the external sides (8) of the future track system (4), regardless from the required superelevation of the guiding system of the tracks.
6. Concrete slab according to the previous claim characterized in that the top surface (3) of the slab (1) has a slope opposite the superelevation of the guiding system of the tracks.
7. Concrete slab according to one of the previous claims characterized in that the slab (1) has a mostly uniform thickness.
8. Concrete slab according to one of the previous claims characterized in that the slab (1) consists of pre-assembled concrete.
9. Concrete slab according to one of the previous claims characterized in that the rail supports (2, 2') are discontinuously arranged on the slab (1).
10. Concrete slab according to one of the previous claims characterized in that the continuous rail placement has openings (11) for diverting rainwater over the top of the top surface (3) of the slabs (1).

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