EP2374931A2 - Refurbishment method for multi-layer substructure of rail sections - Google Patents

Abstract

The method involves providing a substructure having a crushed stone layer (11) and soil layers (10), and expanding the crushed stone layer, where new crushed stones are installed for the new crushed stone layer. The soil layer is expanded using a lifting device (8). New soil material is installed for the new soil layers.

Description

The invention relates to a method for rehabilitating consisting of a ballast layer and from underlying soil layers multi-layer substructure consisting of sleepers and rails tracks on rail lines.

Railways consist of a multi-layered substructure on which the tracks are located. The tracks consist of the sleepers and the rails. The multi-layer substructure initially consists of soil layers. These are, in particular, a protective cover layer, an antifreeze layer and possibly further layers. On these soil layers is then a gravel layer. This serves to receive the track.

The above-described multi-layer substructure must be rehabilitated from time to time. The track itself is not necessarily always renewed. It can also be renewed or partially renewed at the same time. The known methods for refurbishing this multi-layer substructure using appropriate machines are technically complex and inflexible, especially with regard to the machine equipment.

Based on this, the object of the invention is therefore to provide an improved method for rehabilitating the multilayer substructure consisting of a ballast layer as well as underlying ground layers of railroad tracks consisting of sleepers and rails.

The technical solution is characterized by the features of claim 1.

As a result, an improved method for rehabilitating existing of a ballast layer and underlying soil layers of multi-layer substructure consisting of sleepers and rails tracks on railways created, which is characterized by its simple technical realization using flexible working car with appropriate machinery. As a result, this means that the multi-layer substructure and possibly the track can be rehabilitated in a much more cost effective manner than was previously possible. The core idea of the rehabilitation process according to the invention is that between the work car to remove the track and a separate, further work car for reinstalling the same or new or partially renewed track additional, separate work cars are. This or these intermediate work cars take on very specific tasks for the rehabilitation of the substructure and are therefore flexible because of their separate training with respect to the other work cars. An essential aspect is that all work cars are continuously moved forward during the work process. In particular, the soil layer below the ballast is integrated with regard to its rehabilitation in the continuous remediation process. Specifically, the soil layer to be rehabilitated is removed by means of a lifting unit, which is located on a separate work car between the work car for track removal and the work car for track installation. The core idea thus lies in the continuous expansion of the soil layer with the track dismantled as part of a continuous process of all sub-operations or complete operations. Thus, the invention is characterized by a continuous rehabilitation of the railway line with renewal or processing of all or individual soil layers in a continuous process, including the replacement of the existing track or a completely new or partially renovated track. The particular advantage of the rehabilitation process according to the invention with the special expansion of the soil layer by means of a separate work car is in the workplace height with a developed track with complete accessibility of the track.

The development according to claim 2 proposes a yokewise track renewal. The basic idea is that first the track is split into a short yoke and long jetties. The first work car then picks up the yokes. By means of a transport device, the yokes are then fed to the second work car and reinstalled by this after the renovation of the substructure. The transport device for transporting the yokes from the first work cart to the second work cart is preferably a gantry crane, which can be moved longitudinally on the work cart on rails. Other transport facilities are conceivable. It is also conceivable to completely renew the yokes or at least partially renew the developed, existing yokes. For this purpose, suitable work car with the storage and transport of the appropriate material.

Alternatively, the development proposes according to claim 3, that the rails are not completely expanded in the form of yokes, but rather spread. It will be taken only by the first work car then exposed sleepers and transported by a corresponding transport unit to the second work car, where they can be reinstalled after the rehabilitation of the substrate and the rails can be re-spread. Again, it may be at the transport device for the thresholds to a longitudinally movable gantry crane. Other transport facilities are also conceivable here. Furthermore, it is conceivable to completely renew or at least partially renew the rails and / or sleepers. For this purpose, suitable work car with the storage and transport of the appropriate material.

The development according to claim 4 proposes that the ballast layer is excavated in the flow before removing the track. This purpose is served by a corresponding machine, which is not part of the above-described work car. The removal of the old gravel layer then has the result that the track rests on the soil layer.

Alternatively, according to the embodiment in claim 5, the gravel layer can also be removed by means of or one of the intermediate cars between the track removal wagon and the track laying wagon. This expansion of the ballast can be done independently of the expansion of the soil layers, but also together.

The development according to claim 6 proposes that the new gravel and / or the new soil materials are installed by means of the second work vehicle, ie with the track installation wagon. The corresponding built-in machines are then seen in the direction of the machine in front of the machine to reinstall the track.

Alternatively, it is also conceivable according to the embodiment defined in claim 7 to install the new ballast layer and / or the new soil materials in an intermediate work car between the track removal wagon and the track installation wagon. This means that the built-in machines are integrated in the work cart, which also has the excavation unit for the bottom layer. Of course, a separate work car can be provided for this purpose. In this context, the most diverse variants are conceivable.

The development according to claim 8 proposes that behind the excavating device for the soil layers there is a processing device for the excavation bottom located under the soil layers. This processing device is a working unit in the form of a milling cutter and / or an installation unit for improving the substrate. With this work unit, the existing substrate can be worked up. This means that the upcoming soils are milled out below the excavation by means of the router. With the milling out soil improvers, such as lime or cement or other substances or mixtures can be introduced. Also can be leveled and compacted by means of the milling unit of the ground. This is done by means of appropriate technical modules available on the market or special constructions of the corresponding milling / installation unit. In addition, with this milling / installation unit supplied soil, such as fines of sieved gravel the leading ballast cleaning machine can be introduced or applied or installed in the upcoming floor or on the upcoming floor. At the same time during this activity soil improvers such as lime or cement can be added / mixed and introduced / installed. By this workup with the track dismantled, in the best case, even a reduction of the new layer protection layer or antifreeze layer or the like can take place. Thus, in this way, in the continuous process with the track dismantled, an additional soil preparation of pending or additionally to be incorporated layers can be carried out in an overall machine.

Finally, the development proposes according to claim 9, that all or part of the work car crawler tracks for supporting and moving the respective work car on the trackless surface.

Fig. 1a

ein Arbeitszug mit drei Arbeitswagen einer ersten Ausführungsform;

Fig. 1b

eine Darstellung des Verfahrensablaufes des Arbeitszugs in Fig. 1a;

Fig. 2a

ein Arbeitszug mit drei Arbeitswagen einer zweiten Ausführungsform;

Fig. 2b

eine Darstellung des Verfahrensablaufes des Arbeitszugs in Fig. 2a;

Fig.3a

ein Arbeitszug mit drei Arbeitswagen einer dritten Ausführungsform;

Fig. 3b

eine Darstellung des Verfahrensablaufes des Arbeitszugs in Fig. 3a;

Fig. 4a

ein Arbeitszug mit drei Arbeitswagen einer vierten Ausführungsform;

Fig. 4b

eine Darstellung des Verfahrensablaufes des Arbeitszugs in Fig. 4a.

Four embodiments of the rehabilitation method of railway lines according to the invention are described below with reference to the drawings. In these shows:

Fig. 1a

a work train with three work car of a first embodiment;

Fig. 1b

a representation of the procedure of the work in Fig. 1a ;

Fig. 2a

a work train with three work cars of a second embodiment;

Fig. 2b

a representation of the procedure of the work in Fig. 2a ;

3a

a work train with three work cars of a third embodiment;

Fig. 3b

a representation of the procedure of the work in Fig. 3a ;

Fig. 4a

a work train with three work cars of a fourth embodiment;

Fig. 4b

a representation of the procedure of the work in Fig. 4a ,

The first embodiment of the work train in Fig. 1a has a seen in the direction of travel (corresponding to the arrow) first work car 1 and at the end of a second work car 2. Between this first work cart 1 and the second work cart 2 is a third work cart 3.

The first work car 1 is used to remove the track 4 consisting of rails 5 and sleepers 6. The second work car 2 is the reverse process, namely the replacement of the track 4. In addition, in this embodiment, the second work car 2 still installation means 7 for the soil materials and for the gravel. The third work cart 3 has an excavating device 8. Finally, both the second work cart 2 and the third work cart 3 each have a crawler undercarriage 9.

• Mittels dieses Arbeitszuges soll unter Belassung des Gleises 4 die untere Bodenschicht 10 (Planumsschutzschicht sowie Frostschutzschicht sowie ggf. weitere Schichten) sowie die darauf befindliche Schotterschicht 11 erneuert werden. Die Schotterschicht 11 ist dabei bereits im Vorlauf ausgebaut worden. Außerdem ist zuvor bereits das Gleis in ein Kurzjoch 12 sowie in Langjoche 13 aufgetrennt worden.

The operation is as follows:

• By means of this work train, leaving the track 4, the lower soil layer 10 (layer protection layer and antifreeze layer and possibly further layers) as well as the gravel layer 11 thereon should be renewed. The ballast layer 11 has already been removed in the flow. In addition, previously the track has been separated into a short yoke 12 and 13 in Langjoche.

In step 1 in Fig. 1b the initial situation is shown.

Step 2 shows that the first work cart 1, the short yoke 12 and the long yokes 13 expands. The crawler undercarriage 9 has moved down and is supported on the bottom layer 10 from.

In step 3 it can be seen that by means of a gantry crane 14, the short yoke 12 and the long yokes 13 are moved to the second work cart 2.

In step 4 it is shown how the excavating device 7 of the third carriage 3 expands the bottom layer 10. The corresponding expansion material is removed. In principle, it is conceivable that this excavating device 8 not only the bottom layer 10 but also the ballast layer 11 expands simultaneously.

In step 5, two things are recognizable. On the one hand, the installation devices 7 build a new bottom layer 10 and a new ballast layer 11. On the other hand, the long yokes 13 are installed on the new substructure thus formed. The crawler undercarriage 9 of the middle, third work car 3 first moves on the old ground layer 10 (step 4) and then on the excavation floor (step 5).

In step 6 is shown when at the end of the railway line to be rehabilitated encounters the existing railway line. This means that the trolleys of the first work vehicle 1 and the third work trolley 3 can be moved again on the track 4, so that the crawler chassis 9 is raised.

Step 7 shows how the last elongated yoke 13 is installed and then in step 8 the short yoke 12 is installed. The finished railway line is then shown in step 9.

The embodiment of Fig. 2a and 2 B shows that the installation means 7 are not arranged here on the second work car 2, but on the third work car third

The installation devices 7 are seen in the direction of travel (according to the arrow) behind the excavating device 8.

From the basic principle changes in the process sequence compared to the first embodiment of the Fig. 1a and 1b Nothing. The difference exists only on the one hand in the described other arrangement of the installation devices 7, on the other hand drives the crawler chassis of the middle, third working car 3 on the new ballast layer 11 and not on the excavation floor.

The third embodiment of Fig. 3a and 3b is based on the first embodiment of Fig. 1a and 1b , The difference is that the middle, third work car 3 still has a processing device 15 in the form of a milling and installation device for underground improvement for processing the substructure. The plow can be used to milled the pending soil underneath the excavated layers. In addition, soil improvers such as lime or cement or other substances or mixtures can be introduced with the milling. Also, by means of this processing device 15, the soil can then be leveled and compacted. It is also possible that by means of this processing device fines of the screened ballast of the leading ballast cleaning machine introduced into the pending floor or on the upcoming floor or applied / installed. At the same time soil improvers of the type described above can also be supplied / mixed and introduced / installed. The corresponding processing with this processing device 15 takes place in steps 4 to 6.

The fourth embodiment of Fig. 4a and Fig. 4b Finally, based on the third embodiment of Fig. 3a and 3b , The difference is that here the track 4 is not widened yokewise, but that the rails 5 are spread out. Here takes the first work car 1 then the sleepers 6 and transports them by means of a gantry crane for replacement to the second work car 2, after the substructure has been redeveloped. In this position, the rails 5 can then be eingespreizt again. In principle, it is also conceivable to replace the old sleepers 6 by new sleepers 6 and / or to replace the old rails 5 with new rails 5.

This applies equally to the above-described embodiments, i. that also there in addition to the maintenance of the old track 4, a complete renovation or at least a partial renovation of the track 4 is performed.

In the embodiments described above, the number of work cars and the arrangement of the work equipment are shown purely by way of example. Of course, between the first work car 1 and the second work car 3 not only a single intermediate work car, but several intermediate work car be arranged, which are equipped with appropriate machinery. The arrangement and number of crawler tracks is equally variable here.

LIST OF REFERENCE NUMBERS

1

first work car

2

second work car

3

third work car

4

track

5

rail

6

threshold

7

installing means

8th

excavator

9

crawler track

10

soil layer

11

gravel layer

12

Kurzjoch

13

Langjoch

14

gantry crane

15

processing device

Claims (9)

Method for rehabilitating the multi-layer substructure consisting of a ballast layer (11) as well as of underlying soil layers (10) of tracks (4) consisting of ties (6) and rails (5) in the case of railway lines,
wherein a first work car (1) the track (4) initially removed from the old substructure and seen in the direction behind it second work car (2) the same track (4) or a new track (4) or a partially renewed track (4) reinstalled on the renovated substructure,
wherein the ballast layer (11) is removed,
refurbished or new ballast being installed for the new ballast layer (11),
wherein between the first work cart (1) and the second work cart (2) at least one further, third work cart (3) is used, which removes all or individual soil layers (10) by means of an excavating device (8),
wherein reclaimed or new soil material is incorporated for the new soil layers (10) and
wherein the work cars (1, 2, 3) are continuously moved forward during the work processes. Method according to claim 1,
characterized,
that the track (4) in a short yoke (12) and in long yokes (13) is separated and that either the same yokes (12, 13) from the first work car (1) taken and transported to the second work car (2) and there again be installed or
that the yokes (12, 13) are partially renewed and installed by the second work cart (2) or
that new yokes (12, 13) from the second work cart (2) are installed. Method according to claim 1,
characterized,
that the rails (5) are spread open and
that either the same threshold (6) from the first work car (1) and taken to the second work car (2) transported and reinstalled there and the same rails (5) are re-spread or
that the same thresholds (6) from the first work car (1) and taken to the second work car (2) transported and reinstalled there and new rails (5) are spread or
that new sleepers (6) installed by the second work car (2) and the same rails (5) are re-spread or
that new sleepers (6) from the second work car (2) installed and new rails (5) are spread. Method according to one of claims 1 to 3,
characterized,
that the ballast layer (11) in the flow before the removal of the track (4) is excavated. Method according to one of claims 1 to 3,
characterized,
in that the ballast layer (11) is removed by means of the third work cart (3) or by means of a further work cart between the first work cart (1) and the second work cart (2). Method according to one of claims 1 to 5,
characterized,
in that the ballast and / or the ground materials are installed by means of the second work cart (2). Method according to one of claims 1 to 5,
characterized,
in that the ballast and / or the ground materials are installed by means of the third work cart (3) or by means of another work cart between the first work cart (1) and the second cart (2). Method according to one of the preceding claims,
characterized,
that the third work cart (3) or another work cart between the first work cart (1) and the second cart (2) behind the excavating device (8) for the soil layers (10) comprises a processing device (15) for under the soil layer (10). has excavating floor located. Method according to one of the preceding claims,
characterized,
that all or part of the work car (1, 2, 3) caterpillars (9) for supporting and moving the work car (1, 2, 3) on the trackless surface.

Images