EP3885491B1 - Verfahren zur renovierung einer schienenstrcke - Google Patents

Verfahren zur renovierung einer schienenstrcke Download PDF

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Publication number
EP3885491B1
EP3885491B1 EP21158715.9A EP21158715A EP3885491B1 EP 3885491 B1 EP3885491 B1 EP 3885491B1 EP 21158715 A EP21158715 A EP 21158715A EP 3885491 B1 EP3885491 B1 EP 3885491B1
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EP
European Patent Office
Prior art keywords
steps
superstructure plate
positioning
stopper
foundation module
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EP21158715.9A
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English (en)
French (fr)
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EP3885491A1 (de
Inventor
Patrizio TOSI
Samuel PEZZOTTA
Michele GAVAZZENI
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Wegh Group SpA
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Wegh Group SpA
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    • 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
    • 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
    • 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
    • E01B1/007—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with interlocking means to withstand horizontal forces
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00—General structure of permanent way
    • E01B2/003—Arrangement of tracks on bridges or in tunnels

Definitions

  • the subject matter of the present invention is a method for renovating an existing railway line with the removal of the ballast.
  • a railway line also means an underground railway, tram, monorail line, etc.
  • the technical field of the present invention relates to the maintenance and renovation of railway lines in general.
  • the invention relates to a method that enables a railway line to be restored quickly and effectively, without causing long interruptions on the line itself.
  • Railway lines traditionally envisage a superstructure composed of sleepers, anchoring systems and rails on a ballast.
  • the superstructure system thus composed is inserted into a ballast, composed of selected particular road metal.
  • the sleepers lie on the latter and by vibration they are buried therein up to the extrados; then the rails are fastened onto them.
  • the sleepers may be made of wood or concrete.
  • a drawback of such solution is connected with the transfer of loads, especially tangential loads, between binary rail plates and foundation plates, during the reactivation of the traffic at reduced speed after the first macro-step.
  • a method for renovating a section of an existing railway line with the removal of a ballast is disclosed by FR-A-2993582 .
  • the technical task underpinning the present invention is to propose a method for renovating an existing railway line with the removal of a ballast, which enables the interventions to be performed during ordinary traffic interruptions (e.g. at night) optimising safe operation.
  • a further object is that of speeding up the intervention as much as possible.
  • foundation module 21 sometimes known as a base plate in technical jargon
  • overlying superstructure plate 81 sometimes known as a binary rail plate in technical jargon
  • the foundation module 21 is placed on an infrastructure that can be, according to the case in question: compacted earth, viaduct, bridge or the bottom of a tunnel and on which, as clarified below, the old pre-existing railway structure has been dismantled.
  • the foundation module 21 is a prefabricated element, preferably made of concrete and, generally, with a rectangular plan shape and with a predetermined height which is also variable.
  • Figure 10 shows such foundation module 1 in an axonometric view for describing it better.
  • niches 212 On the side of the two short sides at least two niches 212 are afforded each side. Such niches 212 pass through the entire thickness with a rectangular plan shape. Threaded bars are inserted into such niches 212 for the longitudinal connection of the foundation modules. In the centre of the manufactured element the steel reinforcements exit vertically (in the form of a plurality of bars 213), which were originally inserted into the module 21 during its assembly step.
  • niches 212 may also not be necessarily passing through the entire thickness.
  • both of the short sides are provided with such niches (preferably rectangular) which face each other perfectly in line when two or more modules are arranged adjacently in succession with one another, as for example highlighted in figure 10 .
  • the prefabricated module 21 described above can obviously be transported in situ and its indicative dimensions are about 2.60 m for the long side and 2.50 m for the short side.
  • the thickness (therefore the height of the sides) can vary in a range between 20 cm and 30 cm (or 35 cm), as a function of the raised part, preferably about 20 cm. They can therefore be stacked onto one another, can be moved with relevant cranes and transported in situ through relevant railway wagons arranged for such maintenance works on the lines.
  • FIG. 3 and 10 show a support layer 10 on which the foundation module 21 is placed. It is a bottom layer of concrete with an earthy consistency and will be better described in the description related to the assembly sequence.
  • supports 6 are interposed, typically made of resinous material. They may also be made of elastomer, as long as they perform a temporary support action. They must have specific elastic characteristics.
  • the supports 6 are temporary. They have the role of supporting the vertical loads temporarily to enable the transit of rolling stock. They will later be removed and replaced with the definitive cast of cementitious mortar. Typically the supports 6 are shaped like strips.
  • compartments are obtained for the insertion of the temporary supports 6.
  • the aforesaid compartments prevent the elastic support 6 from moving during the passage of the rolling stock.
  • the assembly of the overlying superstructure plate 81 is envisaged (also known as the binary rail plate in technical jargon). It is of the precompressed type, typically PRC.
  • the superstructure plate 81 is reinforced and precompressed along the two main directions in order to make it resistant to stress actions and fatigue phenomena, removing cracks under working conditions and making the element durable over time.
  • the useful life of the structural elements of the system is fixed at a minimum of fifty but estimated to be around sixty years and more. Rails and plastic or elastomeric elements have a much shorter useful life and, therefore, replacement times will follow depending on the wear due to the loads and frequency of the railway operations.
  • precompression procedures and techniques are per se well known in the state of the art and in the specific case of the railway platform harmonic steel strands or wires will be used with pre- or post-compression.
  • Figure 11 depicts an axonometric view of the precompressed superstructure plate 81. It is also a transportable manufactured element.
  • Such superstructure plate 81 as shown in figure 11 , comprises a plurality of supports 811 for the attachments of the rail.
  • Such supports 811 are a single body with the platform and the attachment members are fastened onto such supports, as mentioned, onto which the rails 9 are then positioned and fastened.
  • the supports 811 may be for a type of attachment made by the company Vossloh, but also for any other supplier. In the event of using other types of attachment, e.g. Pandrol FCB, they could for example require a flat surface or a different conformation of the supports 811.
  • Figures 14 and 15 show the superstructure plate 81 on which the rails 9 are already mounted but it is to be understood that it is obviously manufactured without rails which are mounted subsequently during the step of mounting and restoring the line.
  • the superstructure plate 81 has at least one, preferably at least two, through holes 810 which, with the injection of mortar, create two definitive stoppers and which, as clarified below, enable the pressurised injection or injection by gravity of the bedding mortar. Sometimes there may be more than two of such through holes 810.
  • the section of figure 8 shows the layer of bedding mortar 5 which fills the space between the foundation module 21 and the superstructure plate 81.
  • the section of figure 16 further highlights such hole 810 and shows the anchoring bars 213 that are appropriately located inside such hole 810. Such bars 213 are incorporated into the underlying foundation module 21 and are completed with brackets, as clarified below, before the definitive bedding mortar injection.
  • FIGs 16 , 19, 20 show the temporary stopper 3 that has the task of transferring the longitudinal and lateral actions due to the passage of rolling stock at reduced speed, before being replaced by the definitive stopper.
  • the temporary stopper 3 comprises/is a cylinder (typically metal, in particular steel) which is fastened to the construction joint bars 213 present in the foundation module 21.
  • the temporary stopper 3 has a smaller diameter than that of the housing 810 into which it is inserted. Therefore, so that it is effective, once installed, the remaining space must be filled with a material that enables safe fastening and contact.
  • a ring of resin 4 is inserted which, once hardened, temporarily transfers the loads between the superstructure plate 81 and the foundation module 21 until it is replaced by the definitive stopper.
  • Regulation systems 85 are also provided so as to place the binary rail 9 in the correct geometry from the planimetric/altimetric point of view.
  • Such regulation systems 85 are clearly visible in the view of figure 14 . They comprise, for example, bolts on which to act by screwing or unscrewing with the consequent lifting or lowering of the binary rail until it reaches the correct position.
  • figure 14 shows a threaded shank 89 of the bolt inserted into a channel 87 passing through the superstructure plate 81 and into which a nut 880 is buried in the prefabrication step, so that when the shank 89 is inserted into the channel 87 it is screwed to the nut 880 and, continuing to screw, it exits from the opposite side and creates a support (coming into contact with the foundation module 21).
  • a support coming into contact with the foundation module 21.
  • a plurality of bolts are provided (preferably four) for regulating the superstructure plate 81 provided on one side and on the opposite side in a symmetrical way.
  • the system for fastening the rails 9 onto the supports 811 can be adapted for the insertion of the most common attachment members on the market and chosen as a function of the specific relevant requirements.
  • the subject matter of the present invention is a method for modifying (renovation in technical jargon) of an existing railway line with the removal of a ballast. It is specified that a ballast means the layer of gravel or ballast in which the sleepers lie.
  • Such method comprises a first group of steps (or even first macro-step).
  • the first macro-step is performed during an ordinary interruption of the traffic along the railway line (e.g. during the night-time when the traffic stops).
  • Such first group of steps comprise a step for the removal of the rails, sleepers and ballast of the existing railway line. This is exemplified by the passage from the configuration of figure 1 to that of figure 2 .
  • the rails are to be cut. Furthermore, with excavators and/or railway wagons and/or mechanical tools in general the rails, the sleepers and the ballast are removed in this order.
  • the first group of steps can comprise a step of creating a support layer 10 for supporting the railway line (the new one).
  • a support layer 10 in technical jargon is also called a levelling layer (as it enables a predefined level to be reached). This takes place subsequently to the demolition of the existing binary rail.
  • This step can comprise the sub-step of modifying an existing foundation, bringing the ground to a pre-defined level through excavation or backfill and then levelling and compacting it. This takes place for example with the use of excavators and vibrocompactors.
  • a topographic survey can be performed on the levels of the foundation.
  • the step of preparing the layer 10 also comprises the creation of a bedding cast (typically made of concrete), see for example figure 3 .
  • the concrete must have the consistency of so-called wet earth. Appropriately it has a minimum thickness of about 8-10 cm.
  • the concrete casts (or similar material) can possibly be performed with pumps and pipes that can even be at a distance (e.g. 150 - 200 metres), appropriately on railway wagons placed on the binary rail.
  • Such layer 10 can therefore be defined as a foundation bedding cast.
  • the method further comprises the step of positioning a plurality of prefabricated foundation modules on said layer 10. Such foundation modules are placed consecutively one on top of the other along the railway line 1 (as shown for example in figure 10 ). Appropriately such step comprises positioning a prefabricated foundation module 21 (appropriately on said layer 10; appropriately it is placed directly in contact, but the presence of an intermediate element cannot be excluded a priori ). See figure 3 for this purpose.
  • the step of positioning a plurality of foundation modules comprises the step of resting the foundation modules in sequence one opposite the other.
  • the step of positioning a plurality of prefabricated foundation modules on said base 10 comprises a step of positioning a further foundation module 22 (which can therefore be defined as the second module) consecutively to the foundation module 21 (which can therefore be defined as the first module 21).
  • the foundation modules together define a longitudinal strip.
  • Such strip (orthogonally to the axis of the rail) has a width for example comprised between 2.4 and 2.6 metres.
  • the first and the second foundation modules 21, 22 comprise, respectively, a first and a second connector 211, 221.
  • the first and the second connector 211, 221 can be connected to one another. In a particular solution this takes place by screwing (however, it could take place in another way, e.g. via quick connection or guillotine joints, etc.).
  • the first connector 211 could comprise a first longitudinal extension element.
  • the second connector 221 can for example comprise a second threaded longitudinal element and a sleeve that can be screwed both onto the first and the second longitudinal element for connecting them together.
  • first and the second connector 211, 221 are at least partially housed respectively in a first and a second niche 210, 220 obtained one on the first and one on the second module 21, 22.
  • first and the second connector 211, 221 are partially buried respectively in the first and the second foundation module 21, 22.
  • the step of positioning the second foundation module 22 consecutively to the first foundation module 21 takes place by placing the first and the second niche 210, 220 opposite one another.
  • first and the second niche 210, 220 opposite one another.
  • niches there is a plurality of niches (with corresponding connectors) along two sides of the first and the second foundation module 21, 22 which are placed opposite one another.
  • the method comprises the step of positioning at least one temporary elastic support 6 on the foundation module 21.
  • this takes place once the laying of the foundation modules has been completed and the connection between them has been made.
  • this envisages inserting such elastic support 6 into a break 60 in the extrados (upper face) of the module 21.
  • the step of positioning the elastic support 6 on the module 21 can take place in the work site or the elastic support 6 can be preassembled (see again figure 4 ), typically in the factory.
  • such elastic support 6 projects externally to said recess 60.
  • such elastic support 6 is shaped like a strip.
  • such strip is arranged so as to have the long side parallel to the direction along which the axis of the rail is intended to extend.
  • a plurality of distinct elastic supports 6 are positioned on the foundation module 21. They are advantageously shaped like strips. Advantageously, they are inserted into corresponding breaks 60 afforded on the extrados of the module 21 (see for example figure 10 ).
  • the elastic support 6 to which reference is made herein could be elastomeric. Appropriately, it acts as a bearing (typically between the module 21 and the superstructure plate 81 described below). The elastic support 6 therefore remains interposed between the foundation module 21 and the superstructure plate 81.
  • the method further comprises the step of superposing on said foundation module a prefabricated superstructure plate intended to support one or more rails.
  • the method comprises the step of superposing on the foundation module 21 a prefabricated superstructure plate 81 intended to support said one or more rails 9 (see figure 5 ). This enables the passage of rolling stock on said rails 9.
  • the method further comprises the step of temporarily positioning a temporary stopper 3 in a corresponding seat 810 of the superstructure plate 81.
  • the step of positioning the stopper 3 and the adjacent elements is better highlighted in the succession of figures 12-15 .
  • the step of temporarily positioning a stopper 3 in a corresponding seat 810 of the superstructure plate 81 can be part of the step of superposing a prefabricated superstructure plate 81 on said foundation module 21. This for example envisages that the insertion of the stopper 3 in said seat 810 takes place as a result of the superposition of the superstructure plate 81 on the foundation module 21, said stopper 3 being first placed on the foundation module 21.
  • stopper 3 could be inserted into said seat 810 after the step of superposing the superstructure plate 81 on said module 21.
  • the method comprises the step of positioning at least said elastic support 6 between the foundation module 21 and the superstructure plate 81.
  • this is obtained with the step of superposing a prefabricated superstructure plate 81 on the foundation module 21.
  • the elastic support 6 previously resting on the foundation module 21 remains interposed.
  • the method further comprises the step of constraining the stopper 3 to the foundation module 21 for transferring the tangential stress between the superstructure plate 81 and the foundation module 21.
  • threaded elements 214 can be screwed to said bars 213, trapping a portion of said stopper 3.
  • the first group of steps can also comprise the step of positioning at least one insert 40 in said seat 810, placing it between the stopper 3 and said prefabricated superstructure plate 81 (see figure 15 ).
  • Such insert 40 enables any lateral play between the stopper 3 and the seat 810 to be minimised therefore any vibrations/oscillations upon the passage of railway train sets.
  • said insert 40 comprises a hardening means 4.
  • the step of activating the hardening of said hardening means 4 is appropriately envisaged.
  • Said at least one insert 40 is introduced between the stopper 3 and the superstructure plate 81 in a state in which the hardening means 4 is still mouldable and/or flexible and hardens or completes its hardening when it is in the position between the stopper 3 and the superstructure plate 81.
  • said at least one insert 40 comprises a flexible casing 400 (appropriately a jacket), e.g. made of plastic.
  • a flexible casing 400 is appropriately toroidal.
  • the casing 400 contains the hardening means 4 which, for example, comprises a fluid epoxy resin.
  • the step of activating the hardening of the hardening means 4 comprises the step of introducing a chemical reactant into the casing 400, appropriately through an injection valve.
  • a chemical reactant into the casing 400, appropriately through an injection valve.
  • such flexible casing 400 can be positioned annularly around the stopper 3. This enables the empty space which remains in the hole 810 between the stopper 3 and the superstructure plate 81 to be filled.
  • the step of positioning said at least one insert 40 in said seat 810 comprises the step of positioning said at least one insert 40 (appropriately containing the hardening means) around said stopper 3.
  • said jacket may be annular (e.g. torus shaped) or a longitudinal body that can be bent to assume an annular conformation.
  • said at least one insert 40 could comprise a plurality of pieces (preferably prismatic) which are arranged around the stopper 3 along an annular path.
  • the step of positioning said at least one insert 40 in said seat 810 is preceded by the step of positioning in said seat 810 a base for the support 30 of said at least one insert 40 (see for example figure 14 ).
  • a base for the support 30 of said at least one insert 40 see for example figure 14 .
  • such base 30 may be an annular element, preferably flexible, e.g. made of foam rubber.
  • such support base 30 could be integrated into the stopper 3, but is preferably a body constrained by the stopper 3.
  • the base 30 prevents the stopper 3 from being able to fall below the platform 81.
  • the support base 30 therefore defines a lower support of the stopper 3. It facilitates the stable positioning thereof in the seat 810.
  • such support base 30 could even be omitted.
  • the method comprises the step of applying an upper retaining means 300 of said at least one insert 40 in said seat 810.
  • the upper retaining means 300 comprises for example a clamp (see figures 16, 17 , 21 ).
  • the means 300 can be fastened (typically in a removable way) to the stopper 3.
  • the means 300 enables said at least one insert 40 to be constrained at the top.
  • the method of positioning a temporary stopper 3 in said seat 810 comprises positioning in said seat 810 a stopper 3 having a lateral surface intended to come into contact with a wall that delimits said seat 810.
  • a lateral surface of the stopper 3 could therefore comprise a coating 301, typically annular, for example made of neoprene (such stopper 3 is exemplified in figures 26-28 ).
  • the lateral surface of the stopper 3 could be substantially countershaped to said seat 810.
  • the superstructure plate 81 could be positioned on the foundation module 21 already with the stopper 3 integrated. The play between the lateral surface of the stopper 3 and the seat 810 is minimal.
  • such temporary stopper 3 is fixed to the foundation module 21, typically to the bars 213. This can take place by means of at least one stop 214, for example one or more bolts that are applied to the bars 213. This happens from above, e.g. through a top opening of the stopper 3 which enables the stopper 3 to be fixed to the bars 214.
  • said stop 302 can be used to compress the stopper 3 against the underlying foundation module 21.
  • the method comprises the step of performing a planimetric/altimetric regulation of the superstructure plate 81 (see for example figure 5 and figure 14 ).
  • spacer elements 85 that enable the distance of corresponding points of the superstructure plate 81 to be regulated from underlying points of the foundation module 21.
  • spacer elements 85 comprise threaded elements comprising a shank 89 that crosses the superstructure plate 81.
  • the shank 89 can be screwed onto a nut 880 buried inside the superstructure plate 81 during the manufacturing step. As a function of the degree of screwing such shank 89 projects to a greater or lesser extent below said superstructure plate 81 (coming into contact with the foundation module 21).
  • the method also comprises the step of positioning said one or more rails 9 on the prefabricated superstructure plate 81 to enable the transit of rolling stock at reduced speed along the railway line 1 (see figure 6 ).
  • the step of performing said planimetric/altimetric regulation takes place prior to the step of positioning said one or more rails. Possibly, it could take place or be repeated at a later date, but however prior to the step (described below) of creating the bedding layer 5.
  • the first group of steps takes place during a first interruption of the rolling stock traffic along the railway line 1.
  • first interruption is at night-time.
  • the railway traffic is less frequent and in many portions completely suspended. Therefore, it does not penalise normal traffic.
  • the method according to the present invention also comprises a second group of steps (that can also be defined as the second macro-step).
  • the second group of steps (depicted from figure 7 to figure 9 ) takes place during a second interruption of the rolling stock traffic along the railway line 1.
  • the second group of steps takes place after at least 4 hours (preferably 8 hours) from the first interruption.
  • Appropriately also the second interruption is at night-time. Typically it takes place the night after the first interruption.
  • Such second group of steps in turn comprises the step of creating a bedding layer 5 between the module 21 and the superstructure plate 81 (see figure 8 ).
  • the step of creating the bedding layer 5 appropriately comprises the step of introducing (typically by injection) a material intended to harden between the module 21 and the superstructure plate 81.
  • the step of creating a bedding layer 5 comprises the step of making a formwork 90 around a gap between the module 21 and the superstructure plate 81 (see figure 7 ).
  • the formwork 90 enables the introduction of such material intended to harden to be confined to a confined space.
  • the step of making the formwork 90 follows the step of removing said elastic support 6 between the module 21 and the superstructure plate 81.
  • the second group of steps comprises the step of removing said elastic support 6 before creating said bedding layer 5.
  • all the elastomeric strips introduced into the corresponding breaks 60 and placed to support the superstructure plate 81 are removed.
  • the second group of steps comprises the step of removing said temporary stopper 3 and said possible at least one insert 40 before creating said bedding layer 5 between the module 21 and the superstructure plate 81.
  • the method comprises introducing into the seat 810 after the removal of the stopper 3, a material that by hardening defines a definitive stopper. This can take place as described below.
  • the step of introducing by injection a material intended to harden between the module 21 and the superstructure plate 81 appropriately envisages occupying (preferably completely filling) also said seat 810 with the material used for the bedding layer 5.
  • the step of introducing said material between the module 21 and the superstructure plate 81 preferably takes place through the seat 810 or one or more injection holes especially arranged in the prefabricated element.
  • the method also comprises a third group of steps (that can also be defined as a third macro-step).
  • the third group of steps can in turn comprise finishing works, e.g. removal of the formwork 90 for containing the bedding mortar and/or the possible adaptation of the water drainage system, filling with gravel or ballasts or with walkable prefabricated elements to the sides of the binary rail.
  • the third group of steps can comprise a step of welding and/or grinding. Therefore, the traffic can be reactivated at the design speed.
  • the third group of steps takes place during a further interruption of the railway traffic, which typically takes place during the night after the one in which the second macro-step was performed.
  • the method comprises the following steps:
  • the present invention achieves important advantages.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Railway Tracks (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Claims (11)

  1. Verfahren zur Renovierung eines Teilstücks einer bestehenden Schienenstrecke mit der Entfernung eines Ballasts, umfassend eine erste Gruppe von Schritten, umfassend die folgenden Schritte:
    - Entfernen von Schienen, Schwellen und Ballast eines Teilstücks der Schienenstrecke;
    - Vorbereiten einer Trägerschicht (10) des Teilstücks der Schienenstrecke;
    - Positionieren eines Fertigfundamentmoduls (21) auf der Trägerschicht (10);
    - Überlagern einer Fertigoberbauplatte (81), die dazu bestimmt ist, eine oder mehrere Schienen zu tragen, auf dem Fundamentmodul (21),
    dadurch gekennzeichnet, dass die erste Gruppe von Schritten auch die folgenden Schritte umfasst:
    - Positionieren eines vorübergehenden Stoppers (3) in einer entsprechenden Aufnahme (810) der Oberbauplatte (81), wobei es sich bei der Aufnahme (810) um ein Durchführungsloch handelt,
    wobei der Schritt zum Positionieren des vorübergehenden Stoppers (3) in der entsprechenden Aufnahme (810) der Oberbauplatte (81)
    • ein Teil des Schritts zum Überlagern der Fertigoberbauplatte (81) auf dem Fundamentmodul (21) ist, wobei das Einfügen des vorübergehenden Stoppers (3) in diese Aufnahme (810) infolge des Überlagerns der Oberbauplatte (81) auf dem Fundamentmodul (21) stattfindet, wobei der Stopper (3) zuerst auf dem Fundamentmodul (21) platziert wird, oder
    • kein Teil des Schritts zum Überlagern der Fertigoberbauplatte (81) auf dem Fundamentmodul (21) ist, wobei das Einfügen des vorübergehenden Stoppers (3) in diese Aufnahme (810) nach dem Überlagern der Oberbauplatte (81) auf dem Fundamentmodul (21) stattfindet;
    - Befestigen des vorübergehenden Stoppers (3) am Fundamentmodul (21), um Längs- und Seitenwirkungen aufgrund der Durchfahrt von Rollmaterial bei einer reduzierten Geschwindigkeit zu übertragen;
    - Positionieren von einer oder mehreren Schienen (9) auf der Fertigoberbauplatte (81), um die Durchfahrt von Rollmaterial entlang des genannten Teilstücks der Schienenstrecke zu ermöglichen,
    wobei das Verfahren eine zweite Gruppe von Schritten umfasst, die folgende Schritte umfasst:
    i) Entfernen des vorübergehenden Stoppers (3) aus der Aufnahme (810);
    ii) Herstellen einer Bettungsschicht (5) zwischen dem Modul (21) und der Oberbauplatte (81), wobei der Schritt zum Herstellen der Bettungsschicht (5) den Schritt zum Einführen eines Materials durch Einspritzen umfasst, das dazu bestimmt ist, einen Bereich zwischen dem Fundamentmodul (21) und der Oberbauplatte (81) zu füllen, wobei der Schritt zum Einführen dieses Materials durch Einspritzen auch das Hinterfüllen der Aufnahme (810) mit dem für die Bettungsschicht (5) genutzten Material umfasst, wobei dieses Material durch Aushärten einen endgültigen Stopper definiert.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die erste Gruppe von Schritten den Schritt zum Positionieren von mindestens einem Einsatz (40) in der Aufnahme (810) umfasst, der zwischen dem vorübergehenden Stopper (3) und der Fertigoberbauplatte (81) platziert wird.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass der Einsatz (40) Härtungsmittel (4) umfasst.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die erste Gruppe von Schritten einen Schritt zum Aktivieren eines Aushärtens der Härtungsmittel (4) umfasst, sodass die Härtungsmittel (4) zwischen dem vorübergehenden Stopper (3) und der Oberbauplatte (81) in einem Zustand eingeführt werden, in dem sie noch flexibel sind und aushärten oder ihre Aushärtung abschließen, wenn sie zwischen dem vorübergehenden Stopper (3) und der Oberbauplatte (81) in Position sind.
  5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass der Schritt zum Aktivieren eines Aushärtens der Härtungsmittel (4) einen Schritt zum Einführen eines chemischen Reaktionsmittels in ein flexibles Gehäuse (400) umfasst, das eine Substanz enthält, die dazu bestimmt ist, mit dem chemischen Härtungsreaktionsmittel zu reagieren, wobei das Gehäuse (400) Teil des Einsatzes (40) ist.
  6. Verfahren nach Anspruch 2 oder 3 oder 4 oder 5, dadurch gekennzeichnet, dass der Schritt zum Positionieren des mindestens einen Einsatzes (40) in der Aufnahme (810) den Schritt zum Positionieren eines ringförmigen Einsatzes (40) rund um den vorübergehenden Stopper (3) umfasst.
  7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Gruppe von Schritten während einer ersten Unterbrechung des Schienenverkehrs entlang der Schienenstrecke (1) stattfindet, wobei die zweite Gruppe von Schritten während der zweiten Unterbrechung des Schienenverkehrs entlang der Schienenstrecke (1) stattfindet.
  8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass die zweite Gruppe von Schritten mindestens 8 Stunden nach der ersten Unterbrechung startet.
  9. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Gruppe von Schritten den Schritt zum Positionieren von mindestens einer elastischen Stütze (6) zwischen dem Fundamentmodul (21) und der Oberbauplatte (81) umfasst.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die zweite Gruppe von Schritten den Schritt zum Entfernen der elastischen Stütze (6) vor dem Herstellen der Bettungsschicht (5) umfasst.
  11. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es einen Schritt zum Positionieren eines weiteren Fundamentmoduls (22) nach dem Fundamentmodul (21) umfasst, wobei diese mittels Verbindern (211, 221) verbunden werden.
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ES2334413B1 (es) * 2007-03-23 2010-12-02 Aftrav (Asociacion De Fabricantes De Traviesas Para Ferrocarril) Losa prefabricada de hormigon estructural para via en placa y procedimiento de instalacion de la misma.
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