EP1191145B1 - Process and apparatus for connection of a track comprising rails and discrete bearing blocks with a fixed substructure of the track - Google Patents

Abstract

The cement injector for railway line bedding has a chassis (23) carrying a mixer (29) with a feed container (31) and middle draw chests (37) between the support points (15) of the left and right rails (17,18). Two outer draw chests (38,39) are mounted over the outer area (43,44) before the heads of the support points. A cement pump (32) has a mix distributing feed (33) in the middle chests and outer chests.

Description

The invention relates to a method and a device for Connect one consisting of rails and individual bases Track with the support plate or the hydraulically bound base layer (HGT) of a fixed carriageway, in which the track to the Rails on the support plate or on the hydraulically bound one Supporting layer supported and aligned and then by pouring the gaps between the bases with filling concrete the pavement is fixed.

In known designs for producing a solid roadway for Rail vehicles become those that serve as rail bases Sleepers of the track with filling concrete in a previously made, trough-shaped support plate concreted or with between the Thresholds of poured concrete placed directly on the hydraulic bound base layer and anchored against longitudinal and lateral displacement secured. Here is the filling concrete between those in a relatively short distance from each other laid sleepers very elaborately and so far can only be carried out professionally. For this purpose there is already concrete pavers (DE 39 01 347 A1), in which one over Filling box covering the entire track width after filling of a threshold compartment closed at its bottom and for the next sleeper compartment in the longitudinal direction of the track becomes. There are also concrete pavers without a box bottom, at only the amount of concrete that fits into a sleeper compartment is fed out.

On the other hand, solid carriageways are known in which the rails of the track are supported by two-block sleepers that are connected in pairs by reinforcement elements and with track regulation portals be aligned and supported before they are concreted into the trough-shaped support plate (DE 195 08 107 C1). In this embodiment, too, the filling concrete placed in a threshold compartment after the other in batches, because the filling concrete cross section changes strongly in the base plate trough and since it was believed that only a complete completion of all Ensure voids between the rail bases too can (Hans Bachmann / Thomas Foege: "Rheda 2000" EI railway engineer (51) 6/2000, pp. 34-44).

The professional placing of the filling concrete between the bases the track of a solid track is very complex and that batch-wise feeding of the filling concrete harbors the risk of irregularities in the composition and in the compression in the longitudinal direction of the rail track. The object of the invention is therefore, to create a method and a facility with which the track is not only continuously laid and aligned, but also also continuously in a constant high over the length Quality can be firmly connected to the support plate by concrete can and with lateral elevations of the track in Curve sections can be taken into account.

This is achieved with the method according to the invention solved that the filling concrete from a continuously on the support plate or traveling along the hydraulically bound base layer Concrete feed device in the middle area at the same time between the rails and in the outer areas laterally outside continuously introduced next to the rail bases and is compressed.

Surprisingly, it is possible to have a constant per meter Amount of filling concrete even with changing filling concrete cross-section evenly under and between the individual bases spread out when the concrete is vibrated in the central area and liquefied and compressed at the same time in the outside areas becomes. Here, it has proven to be useful to fill the concrete in the areas between everyone's bases Liquefy the rail during insertion by additional vibrators, which ensures that the filled concrete Individual bases completely underflow and all cavities fills.

Not only anchors can be used as individual bases Steel plates, but also prefabricated two-block sleepers Concrete or steel are used, each with two sleeper blocks connected by reinforcement elements in the filling concrete be embedded.

If the track is directly on the hydraulically bound base layer is laid or on a support plate that has no edge beams has, the filler concrete when pouring and compacting on the outer edges of the outer areas by sliding formwork limited, which are attached to the concrete feeder and on guide means arranged in the hydraulically bound base layer be guided along. These management tools can for example, upstands in the hydraulically bound base layer his.

A device for placing and compacting the filling concrete, in particular for practicing the method described above, is characterized by a chassis Paver holding a concrete storage container, one above the central area between support points of the left rail and support points center pull box arranged on the right rail, two External pull boxes arranged above the outer areas in front of the base of the support points and a concrete pump with volume distribution device, as well as vibrators in the center pull box and in the outer pull boxes having.

Such a device allows continuous Distribute one per running meter to the corresponding average Cross-section adjusted constant amount of filling concrete on the middle area between the rails and on the Outside areas each in front of the serving as individual bases Two-block sleepers, the vibrators for the longitudinal distribution and the transverse distribution of the filling concrete in changing Ensure cross section between the bases. For this purpose the drawing boxes are permanently installed in the working direction extending first internal vibrator and additionally transverse to the working direction between the bases of the left and right The rail can be moved backwards and forwards across the second internal vibrator. The first internal vibrators take over the distribution from these of the filling concrete in the longitudinal direction of the track, while the additional, second transverse internal vibrator for a full Filling in the compartments between successive individual bases and the good distribution and compaction of the filling concrete in the transverse direction and in these areas.

For smoothing and compacting the filling concrete in the middle area and in the outside areas are at the rear in the working direction Edges of the pull boxes arranged. On this Pulling surfaces or on the drawing boxes are external vibrators attached, which additionally compact the filling concrete from above and also to the side in the compartments between drive the threshold. This works fine, though according to the invention of fresh concrete in the drawing boxes on one Level of about 5-10 cm above the surface of the fully installed and compacted filling concrete is kept.

At the front edges of the drawing boxes in the working direction down, against the bottom of the support plate or the hydraulic bound base layer facing concrete retaining aprons attached. These concrete retention aprons prevent excessive Flow of the fresh filling concrete in the working direction and ensure a complete underflow of the as individual bases serving threshold blocks and a full fill the sleeper compartments with the filling concrete.

It is useful if approximately in the longitudinal central axis of the central drawing box a dividing and partly over its bottom protruding boundary plate is arranged. This boundary plate prevents drainage in track sections with lateral elevation the larger amount of fresh concrete required for the higher side to the lower side and enables production of curves with a lateral gradient of the filling concrete, whereby the laterally inclined trailing surfaces of the drawing boxes Create the desired flat but inclined surface.

To ensure that fresh filling concrete swells out of the side To prevent drawing boxes, these have on their lower side edges Sealing lips with the side surfaces facing them the rail bases or with the side surfaces of the edge beams interact with the support plate or edge formwork. If the track directly on the hydraulically bound base layer or be laid on a support plate without any boundary it is advisable to use the outside of the outer drawers To fix sliding formwork, which are several meters long and support the filled concrete to the side until it is is firmly solidified.

There is also the option of placing the filler concrete between firmly arranged continuous formwork elements. In this case, the side formwork corresponds to lateral trough cheek of the trough-shaped support plate.

The paver's concrete pump is dependent on the driving speed controlled by the paver in such a way that they are always running Meter installation distance a predetermined, constant Conveying quantity of filling concrete into the drawing boxes. This amount of filler concrete depends on the structure of the cross-section of the road Cross slope of the road, where different road cross sections more filling concrete is required for bends in camber sections is considered in straight lines with a level route.

The quantity distribution device of the concrete pump expediently has Valve with three delivery paths (three-way valve) on, the manual or controlled by level sensors arranged in the drawing boxes and that is continuously conveyed by the concrete pump Filling concrete quantity on the middle drawing box and the outside drawing boxes distributed. It may be sufficient here, only in the outer drawers Provide level sensors and excess quantities feed into the center pull box from which they easily can be pushed into the side threshold compartments.

The undercarriage can be set with wheels or crawlers on the verge of the support plates or on the edge strips of the hydraulic bound base course run. With adequate support of the laid track on the hydraulically bound base layer or the support plate, in particular in sections without or with slight cant, it is also possible to use wheels with wheels run along on the rails of the laid track to let.

Fig. 1

eine schematische Draufsicht auf einen Teil einer festen Fahrbahn mit dem darauf angeordneten, ausgerichteten Gleis und einer Einrichtung zum Einbringen des Füllbetons zwischen die Stützpunkte des Gleises;

Fig. 2

den Gegenstand der Fig. 1 in einem Querschnitt nach Linie II-II;

Fig. 3

einen der Fig. 2 entsprechenden Querschnitt durch eine etwas anders ausgebildete feste Fahrbahn mit trogförmiger Tragplatte;

Fig. 4

einen Teillängsschnitt des Gegenstandes nach Fig. 1 in einer vergrößerten Darstellung, wobei Teile der Fig. 1 weggelassen sind und

Fig. 5

einen Querschnitt der fertig betonierten festen Fahrbahn nach Fig. 1.

Further features and advantages of the invention result from the following description and from the drawings, in which preferred embodiments of the method according to the invention and the device for carrying it out are explained in more detail by means of examples. It shows:

Fig. 1

a schematic plan view of a part of a solid carriageway with the aligned track arranged thereon and a device for introducing the filling concrete between the support points of the track;

Fig. 2

the subject of Figure 1 in a cross section along line II-II.

Fig. 3

a cross-section corresponding to Figure 2 through a slightly differently designed solid track with trough-shaped support plate.

Fig. 4

a partial longitudinal section of the object of FIG. 1 in an enlarged view, parts of FIG. 1 are omitted and

Fig. 5

a cross-section of the concrete paved roadway according to FIG. 1st

In the drawings, 10 is the hydraulically bound base layer HGT designated a fixed track for rail vehicles, on a suitable substructure, for example one carefully compacted earth is applied. The hydraulic bound base layer 10 can also be a bridge plate or the sole of a tunnel on which a track 11 is laid and should be attached.

In the embodiment shown in FIGS. 1, 2, 4 and 5 the track 11 is directly on the hydraulically bound Base layer laid, while in the embodiment after Fig. 3 on the hydraulically bound base layer 10 first a trough-shaped support plate 12 with edge beams 13 is arranged becomes. The track is then in this trough-shaped support plate 12 11 laid and concreted with filling concrete 14. This construction one slab track is known as the "classic Rheda system".

The following is the method according to the invention and this device used in detail only in one embodiment explained in detail, in which the track 11 immediately applied to the hydraulically bound base layer 10 and with this is connected by filling concrete 14, which between the Individual support points 15 and 16 of the left rail 17 and the right one Rail 18 of the track 11 is introduced, as in the Fig. 1, 2, 4 and 5 is shown in more detail.

It can be seen from FIGS. 1, 2 and 5 that the hydraulically bound Base layer 10 is slightly wider than the track 11 with the Filling concrete 14 in which the track is embedded. The side protruding edge strips 19 and 20 of the hydraulically bound Base layer 10 serve as a route for the wheels 21 and 22 of the Running gear 23 of a concrete feed device 24 for the filled concrete 14, which will be described in more detail below. In your middle area is the hydraulically bound base layer 10 a little thicker and the marginal edges 25 and 26 serve as guide means for sliding formwork 27, the filling concrete 14 laterally limit and attached to the concrete feeder 24 are.

In the embodiment shown in Fig. 3, the fixed The concrete feed device 24 travels on the edge beam 13 along the previously produced support plate 12. lateral Sliding formwork is not necessary here, as the edge beams 13 limit the filler concrete 14 to be introduced laterally. The concrete feeder 24 can also be on a fixed surface, namely anchored to the hydraulically bound base layer Drive formwork with wheels or caterpillars that keep the work progress is implemented daily. This embodiment is not shown, however.

If the hydraulically bound base layer 10 and possibly the base plate 12 completed in the area of the route to be manufactured and has hardened, the track 11 is on the central area the hydraulically bound base layer 10 or in the trough the support plate 12 laid and aligned, such as this described in more detail in EP 0 894 898 A1 or WO 00/44987 and is described. That relocated and in height and sideways Aligned track 11 is then using the device 24th by filling concrete 14 according to the inventive method with the hydraulically bound base layer 10 or the base plate 12 connected.

As already mentioned above, the rails 17 and 18 of the Track 11 supported by individual bases 15 and 16 that can be simple steel plates provided with concrete anchors to which the rail fasteners are attached. In the The embodiments shown in the drawings are Individual bases, however, prefabricated concrete blocks, each of which two through transverse reinforcement bars 28 to a two-block sleeper are connected. These cross reinforcement bars 28 can be simple Round concrete bars, but they can also be designed as lattice girders his.

The device 24 for introducing and compacting the filling concrete 14 between the individual support points 15 and 16 of the track 11 from a paver 29, which spans the travel path across and with a chassis 23 on the verges 19 and 20 of the hydraulic bound base layer travels in working direction 30.

The paver 29 has a concrete reservoir 31, which of Transport vehicles is continuously filled with filling concrete 14. The filling concrete produced outside the driveway is more suitable Composition can be against the working direction 30 on the laid and aligned track or on the side next to the on existing paved roads.

Located below and behind the concrete storage container 31 a concrete pump 32 with a quantity distribution device 33, which is continuously supplied by the concrete pump 32 Volume flow of concrete on three channels or lines 34, 35 and 36 divides, of which the central channel 34 to a center pull box 37 and the outer channels 35 and 36 to outer pull boxes 38 and 39 lead. The draw boxes 37, 38 and 39 are the most important Parts of the paver 29. The center pull box 37 is located over the central area 40 of the driveway, which is from the inside 41 and 42 of the individual support points 15 and 16 of the rails 17 and 18 is limited. The outer pull boxes 38 and 39 are over the outside areas 43 and 44 of the driveway arranged in front Head of the bases or 16 and are from the outside 45 or 46 of the support points 15 or 16 up to the sliding formwork 27 (Fig. 1 and 2) or up to the inside of the edge beams 13 (Fig. 3) extend.

The center pull box 37 and the outer pull boxes 38 and 39 are open, essentially rectangular tin boxes on the underside, whose lower edge is at the level of the finished concrete surface located. On the front edge 47 in the working direction of the center pull box 37 and at the front edges 48 and 49 of the outer pull boxes 38 and 39 are concrete retaining aprons 50 or 51 or 52 attached downward against the surface the hydraulically bound base layer or against the ground 53 the support plate 12 are directed and almost to this floor or reach down to the reinforcement arranged in the filled concrete. The Aprons 50, 51 and 52 prevent that from the drawing boxes 37, 38 and 39 exiting filling concrete excessively in the working direction 30 flows ahead. The aprons are suitably made of rubber or a suitable, limited flexible plastic.

At the rear edges 54, 55 and 56 of the drawing boxes 37, 38 and 39 are redrawing surfaces at the level of the filling concrete surface to be removed 57 or 58 or 59 fastened in the form of flat sheets, on which external vibrators 60, 61 and 62 are attached. This Tightening surfaces 57, 58 and 59 are used for smoothing and compacting of the filling concrete 14 in the central area 40 and in the outer areas 43 and 44.

In the central drawing box 37 and in the outer drawing boxes 38 and 39 are first internal vibrator 63 built-in, which is essentially extend in the working direction 30. There are additional transverse second internal vibrator 64 provided the from the center pull box 37 from transverse to the working direction 30 between the individual support points 15 of the left rail 17 or between the Individual bases 16 of the right rail 18 moved back and forth can be, if the center pull box 37 in the area of Spaces between these individual bases 15 and 16 is located.

So that the drawing boxes 37, 38 and 39 without inhibition on the sleeper blocks 15 and 16 can slide along their side edges a distance of about 20-30 mm from the sleeper blocks to have. The joints thus formed are sealed lips 65 made of rubber or the like sealed to prevent the filling concrete from swelling out between the drawing boxes and the sleeper blocks or To avoid edge beams 13 of the support plate 12.

In order to be able to use the paver 29 in the curve area where the track has a lateral cant and possibly where more filler concrete is required under the elevated rail than on the rail that runs through the inner arch is the center pull box 37 approximately in its longitudinal central axis with a Middle pulling box dividing and partly over its bottom protruding boundary plate 66. This boundary plate prevents an overflow or outflow of the multi-concrete from the inflated Side to the lower side of the road.

For the control of the quantity distribution device 33 can preferably Level sensors 67 are provided in the outer pulling boxes if the quantity distribution is not controlled manually.

According to the invention, the filling concrete 14 with that described above Concrete feeder 24 continuously in one running Meter of track and the same amount here by the vibrators 60, 63, 64 of the central drawing box 37 and by the vibrators 61 and 63 of the outer pulling boxes 38 and 39 compacted and by the trailing surfaces 57 and 58 on it Smoothed top. Here, the filling concrete from transport mixers first in a transfer container, not shown given from which the concrete on a conveyor belt, a screw or other transport equipment in the concrete storage container 31 arrives. The reservoir 31 becomes the Filling concrete transported directly to the paver 29 in such a way that depending from the speed of the paver continuously a previously set one, based on the quantity requirements of the cross section adjusted, constant amount of concrete per running meter of track is fed.

It is characteristic of the invention that the introduction and compacting the filling concrete continuously and not professionally takes place so that the entire construction phase, the length of several can be one hundred meters in one go. As a result, there are no construction joints on the entire working route and the road has the highest possible homogeneity.

Through the use of internal vibrators, which are in the middle area between the individual support points 15 and 16 of the rails 17 and 18 and in the edge areas 43 and 44 in front of the outer heads of the Individual bases work in the direction of work and through the additional Vibrator 64, which is transverse to the working direction 30 den Filling concrete in the intermediate compartments between successive Compacting bases works with continuous operation not only an optimal compression, but it will too ensured that the filling concrete all individual bases 15 and 16 also flows completely on its undersides and the Filled in gaps.

Since the fresh concrete is mainly vented inside the drawing boxes are the rails and the rail fasteners very well protected against dirt from concrete splashes.

The invention is not limited to that shown and described Embodiments limited, but there are several changes and additions possible without the scope of the invention leave. For example, it can be advantageous to also Drawing boxes and external vibrators on the sliding formwork, to the liquefaction and compaction of the filling concrete when pouring to improve. Furthermore, another type of control can be used the concrete pump can be provided and it is possible to fill the concrete flow depending on the road profile in the transverse direction to distribute on the drawing boxes.

Claims (18)

1. Method for connecting a track which consists of rails and single support points to the carrier plate or to the hydraulically bound carrier layer of a rigid carriageway, in which the track is supported and aligned at the rails on the carrier plate or on the hydraulically bound carrier layer (HGT) and is then secured by casting the interstices between the support points with filling concrete on the rigid carriageway, characterised in that the filling concrete (14) is continually introduced and compacted by a concrete feeding device (24) which continually drives along on the carrier plate (12) or on the HGT (10) simultaneously in the centre region (40) between the rails (17 and 18) and in the outer regions (43 and 44) laterally outside next to the rail support points (15 and 16).
2. Method according to claim 1, characterised in that the filling concrete (14) is introduced in an amount which is constant for each running meter and is hereby liquidised by vibrating devices (60-64) in the centre region (40) and in the outer regions (43, 44).
3. Method according to claim 1 or 2, characterised in that the filling concrete (14) is liquidised in the regions between the support points (15 or 16) of each rail (17 or 18) during the introduction of additional vibrating devices (64).
4. Method according to one of claims 1 to 3, characterised in that prefabricated sleepers with two blocks are used as single support points (15, 16), in which two sleeper blocks (15 and 16) are each connected by reinforcement elements (28) which are embedded by the filling concrete (14).
5. Method according to one of claims 1 to 4, characterised in that the filling concrete (14) is limited by sliding form boards (27) during the introduction and compaction at the outer edges of the outer regions (43, 44), which are secured to the concrete feed device (24) and which are guided along guide means (25, 26) which are arranged in the HGT (10).
6. Device for introducing and compacting filling concrete between the support points of a track which is installed on a continuous rigid base such as a carrier plate or a hydraulically bound carrier layer, in particular for carrying out the method according to one of claims 1 to 5, characterised by a finisher (29) which is provided with a chassis (23), which comprises a concrete supply container (31), a centre draw chest (37) which is arranged over the centre region (40) between support points (15) of the left rail (17) and support points (16) of the right rail (18), two outer draw chests (38, 39), which are arranged over the outer regions (43, 44) before the head of the support points (15, 16), a concrete pump (32) with a quantity distribution device (33), as well as vibrating devices (60, 63, 64) in the centre draw chest (37) and vibrating devices (61, 62, 63) in the outer draw chests (38, 39).
7. Device according to claim 6, characterised in that the draw chests (37-39) comprise rigidly built-in first inner vibrating units (63) which extend in the working direction, and additional second inner vibrating units (64) which are transverse to the working direction (30), which move to and fro between the support points ( 15 or 16) of the left or the right rail (17 or 18).
8. Device according to claim 6 or 7, characterised in that following draw surfaces (57-59) are arranged at the rear edges (54-56) of the draw chests (37-39) in the working direction (30) for smoothing and compacting the filling concrete (14) in the centre region (40) and in the outer regions (43, 44).
9. Device according to one of claims 6 to 8, characterised in that outer vibrating units (60-62) are mounted at the draw chests (37-39) and/or their following draw surfaces (57-59).
10. Device according to one of claims 6 to 9, characterised in that concrete retaining aprons (50-52) are secured at the front edges (47-49) of the draw chests (37-39) which are directed downwards towards the floor (53) of the carrier plate (12) or the HGT (10) in the working direction (30).
11. Device according to one of claims 6 to 10, characterised in that that a boundary sheet (66) is arranged in the centre region of the centre draw chest (37) which at least divides it and which partially projects from its lower side.
12. Device according to one of claims 6 to 11, characterised in that sealing lips (65) are arranged at the lower edges of the inner sides of the draw chests (37,38), which sealing lips cooperate with the side surfaces (41, 42) of the rail support points (15, 16) facing them or with the side surfaces of the edge beams (13) of the carrier plate (12) or an edge form board.
13. Device according to one of claims 6 to 12, characterised in that sliding form boards (27) are secured at the outer sides (45, 46) of the outer draw chests (38, 39).
14. Device according to one of claims 6 to 13, characterised in that the concrete pump (32) is controlled in dependence of the drive velocity of the finisher (29) in such a manner that it conveys a previously determined constant amount of filling concrete (14) into the draw chests (37, 38) for each running meter of the installation section.
15. Device according to one of claims 6 to 14, characterised in that the quantity distribution device (33) of the concrete pump (32) comprises a three-way valve which distributes the filling concrete amount which is continually conveyed by the concrete pump (32) to the centre draw chest (37) and to the outer draw chests (38, 39).
16. Device according to one of claims 6 to 15, characterised in that fill level sensors (67) are arranged in the draw chests (37, 38, 39), with the help of which the quantity distribution device (33) is controlled.
17. Device according to one of claims 6 to 16, characterised in that the chassis (23) with wheels (21, 22) or track chains runs on the edge strips (19, 20) of the carrier plates (12) or the hydraulically bound carrier layer (10) or a form board which is rigidly anchored to the subsurface (HGT).
18. Device according to one of claims 6 to 16, characterised in that the chassis (23) with wheels runs on the rails (17, 18) of the installed track (11).

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