Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
  • E01B19/003—Means for reducing the development or propagation of noise
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
  • E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
  • E01B1/004—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with prefabricated elements embedded in fresh concrete or asphalt
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B21/00—Track superstructure adapted for tramways in paved streets
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
  • E01B29/005—Making of concrete parts of the track in situ

Definitions

• the invention relates to a method for producing a thresholdless
• Track in particular tram tracks without rail fastening means, arranged in a trough with a U-shaped cross section.
• Tolerances in the range and +/- from the slipform paver in the range of +/- 5 mm are corrected after the rails have been inserted into the rail troughs by means of appropriate adjustment using adjusting devices and held in the defined position until they are poured.
• a potting compound is then introduced by appropriate machines, an elastic two-component compound, the composition of which can be designed in such a way that different rail deflections are possible under load. With this design, all rail fastening means are dispensed with, since the rail is completely encapsulated, on the outside to just below the top edge of the rail and on the inside so high that the wheel flange can run freely.
• the rail troughs themselves can also be designed on the outside as high as the encapsulation of the two-component mass is sufficient. This is said to have taken into account the requirements of the railway with regard to return flow and signal technology and the horizontal and vertical forces from the operation of the track are transferred to the concrete part of the track by means of a suitable sealing compound or intermediate layers previously inserted in the rail trough.
• vibrations are to be largely avoided. Problems initially arise with the alignment of the rails in terms of height, longitudinal direction, parallelism of the rails and the usually required rail inclination towards the middle of the track. This can only be solved with a lot of construction work.
• Another problem is the repair of this type of construction insofar as a damaged area of the laid track, eg in the event of a rail break, has to be broken open over a large area and then a new track must be manually embedded again.
• Another disadvantage is the need to use an expensive, precisely working slipform paver, which can only be used for longer distances, i.e. not for tram tracks with the numerous
• EP 0 924 344 A1 also discloses a similar construction for grooved rails
• Rail troughs in a three-layer road surface There the rails are inserted with the upper edge at street level and in the course of the production of the track the trough is formed with a porous starting mass, the pores of which are filled with a hardening reinforcing mass and after inserting the individual rails into the troughs with an unspecified plastic casting compound filled up to the rail head.
• the general problems in the manufacture of such a tram track are the same as previously described in the prior art.
• a reinforced concrete trough is also produced here using in-situ concrete, with trough walls previously in a manufacturer can be produced in a defined length and transported to the construction site on a suitably prepared HGT layer.
• the base plate of the trough is then produced, conventional concrete sleepers are used as rail supports and the concrete sleeper is then poured with in-situ concrete. This is suitable for larger railway lines and corresponds to the well-known RHEDA system. None is disclosed about sound insulation measures.
• FIGS. 52 and 59 show a prefabricated trough made of precast concrete parts in which rail support means or the rails themselves can be inserted with the interposition of elastic components. Potting the rail is not disclosed. According to the design, it can be assumed that conventional rail fasteners are used, but chamber fillers and rail base plates as well as appropriate sound insulation by pulling up the neighboring components are disclosed, so that a significant sound emission from the rail web could be insulated. Tie rods are also not required with this design.
• a substructure for a track for rail vehicles in which a continuously elastically supported track without rail fasteners in a sheet metal trough, one trough for each rail, which are embedded within the floor or a corresponding concrete body.
• the rails themselves are framed laterally by chamber fillers and additional wedges so that they completely fill the tin trough and the rail hangs in these wedge-shaped elements. This design is said to provide strong sound insulation in particular.
• the invention initially assumes that at the tram construction site for laying tram tracks, such as the INFUNDO system, a e.g. thresholdless system without rail fasteners is used, but a certain degree of prefabrication is to be achieved so that the duration of the construction site is reduced to a minimum. It is proposed to proceed in the following procedural steps. First: Make a trough that is adapted to the track width and is U-shaped in cross-section, preferably from z. B. precast concrete with raised edge strips arranged on the outside of the trough.
• This prefabricated concrete trough which can be produced in transportable lengths in a concrete plant, is prefabricated in one piece as a component with a U-shaped cross section, or consists of a prefabricated plate on which corresponding edge strips are placed.
• the plate may be whole or part of the plate, e.g. a reinforced base plate, prefabricated as in-situ concrete.
• the trough can also be produced using other methods known per se.
• the edge strips are preferably form-fitting by means of appropriate mechanical anchoring in the plate, possibly also opposite
• Neighboring border strips joined together endlessly.
• tongue and groove systems or stacked element systems with gluing such as when processing bricks, can also be used.
• Concrete or granite stones can also be installed. This creates an open path in the U-shaped trough.
• pre-assembled track gratings can be placed in the trough here comprising only two rails with spacers, e.g. B. tie rods.
• spacers e.g. B. tie rods.
• chamber stones or chamber fillers can also be prefabricated accordingly and inserted into the chambers of the rails, for example grooved rails, and locked there in a clamping or adhesive manner.
• the installation of the chamber stones is also possible in situ.
• a formwork is positioned next to the rails towards the middle of the track.
• the rail including the chamber stones, is now cast between the formwork and the edge strips, whereby care must be taken that the casting is carried out both under the rail foot and on the inside up to a few millimeters below the rail head, while on the outside, the casting extends to just below the top edge of the rail can and also ends with the surface of the edge strips.
• the thickness of the layer to be cast should be at least about 10 - 15 mm so that a sufficient bond and flow into all joints is possible.
• edge strips and the sealing compound on the surface outside the rail, but also in the middle of the track are still filled with asphalt or bitumen, e.g. to get a road surface identical to a neighboring street and to cover the construction joint between the trough, the poured sound-absorbing mass on the rail and the concrete to be poured in the middle of the track.
• a detachment of the grouting materials to the concrete is therefore not critical, provided that this can still happen under the covering layer.
• the rail After casting the rail, e.g. with a sound-absorbing two-component adhesive, such as polyurethane or the like, or a mixture of polyurethane and recycled material such as rubber or the like, only the middle of the track between the hardened casting compounds in the area of the rail is poured with concrete ,
• the fill level in The middle of the track depends on the desired street surface, for example, an asphalt layer and / or paving stones can be applied over it in order to adjust to the level or type of the terrain surrounding the tram track.
• the tie rod can be recessed when the rail is poured and removed before the concrete is poured in the middle of the track if there is a need to prevent any electrical connection between the rails or to avoid the effects of stray currents or to prevent a sound bridge between the rails. In the event of a repair, eg broken rails, only the concrete in
• the middle of the track and the asphalt layer on the surface can be removed, and the track grate and potting can be removed from the trough.
• a prefabricated concrete slab 11 is provided with edge strips 1, which are positively connected to the plate 11 by metal connectors 17. Both the plate 11 and the edge strips 1 were produced in lengths of approximately 5 m beforehand in a manufacturing plant and brought to the construction site in the position shown and positioned.
• Figure 2 shows pre-assembled track gratings on the construction site with a length of approx.
• Tracks are positioned in height and direction.
• Figure 3 first shows a formwork 21 attached to the middle of the track, for example similar to that known from EP 0 825 300 A1, which is used to cover the small rail trough thus formed between the edge strip and the formwork 21 with a two-component material, for example one Pour out the polyurethane mixture while pouring under the rail base and enclosing the chamber stones on the outside of the rail.
• a formwork 21 attached to the middle of the track, for example similar to that known from EP 0 825 300 A1, which is used to cover the small rail trough thus formed between the edge strip and the formwork 21 with a two-component material, for example one Pour out the polyurethane mixture while pouring under the rail base and enclosing the chamber stones on the outside of the rail.
• FIG. 4 the system has been supplemented by potting the second rail.
• a formwork 21 a which, as shown, is also attached at a distance of approx. 12 mm to and on the chamber filling bodies, has been used to fully enclose the chamber filling body on the inside of the rail.
• the introduction of concrete 6 between the formwork 21a is shown schematically in FIG.
• the formwork can be removed, but it can also remain as lost formwork in the track as shown. If necessary, the remaining joints 9 on both sides of the rail and the concrete 6 can be filled in the middle of the track, e.g. with asphalt or the like to adapt to street level 8 in the neighborhood.
• FIG. 6 An enlarged representation of the situation according to FIG. 4 left side is shown in FIG. 6.
• Grooved rail 20 with rail top edge 22 is provided on both sides with chamber fillers 10, 13, which are excluded in the area 12 on the rail web 7 for screwing the tie rod 18.
• the rail foot 4 is kept at a distance from the plate 11 and the edge strip 1 of the trough.
• a formwork 21a is fastened at a distance to chamber filler 13, so that a joint 14, 15, 16 results around the rail / filler, which is poured out with a two-component material such as a PUR mixture.
• a two-component material such as a PUR mixture.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Railway Tracks (AREA)
• Road Paving Structures (AREA)
• Cable Accessories (AREA)
• Manufacturing Of Magnetic Record Carriers (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7923494

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (5)

Family Cites Families (11)

• 1999
  • 1999-09-28 DE DE19946317A patent/DE19946317C1/de not_active Expired - Fee Related
• 2000
  • 2000-09-08 DE DE50011650T patent/DE50011650D1/de not_active Expired - Fee Related
  • 2000-09-08 EP EP00960631A patent/EP1216326B1/fr not_active Expired - Lifetime
  • 2000-09-08 AU AU72857/00A patent/AU7285700A/en not_active Abandoned
  • 2000-09-08 WO PCT/EP2000/008798 patent/WO2001023669A1/fr active IP Right Grant
  • 2000-09-08 AT AT00960631T patent/ATE310123T1/de not_active IP Right Cessation

Non-Patent Citations (1)

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