Disclosed is a method for renewing old rails of a railway track in which, during a first phase, new long rails are unloaded along the railway track from a set of transport wagons of a work train travelling in a first direction of travel and, during a second phase, the work train travels in a second direction of travel opposite the first direction of travel, the new long rails being placed on then fastened to a fixed structure of the railway track during the second phase; and a work train designed to implement the method for renewing old rails.

Disclosed is an initial method for laying new long rails of a railway track by means of a work train travelling in a direction of travel, the initial method being intended to be implemented during a process for replacing old rails of the railway track, said method including a phase during which the new long rails are laid and subsequently fastened to sleepers of the railway track when the work train is travelling in said direction of travel, the initial laying method including a step of laying at least one portion of a first of the new long rails on the sleepers at least one end of an old joining rail.

Disclosed is an initial method for laying new long rails of a railway track by means of a work train travelling in a direction of travel, the initial method being intended to be implemented during a process for replacing old rails of the railway track, said method including a phase during which the new long rails are laid and subsequently fastened to sleepers of the railway track when the work train is travelling in said direction of travel, the initial laying method including a step of laying at least one portion of a first of the new long rails on the sleepers at least one end of an old joining rail.

A method and a device for laying a rail for rail transit are provided. In the present method for laying a rail for rail transit, the rail is a steel rail, which is fabricated and laid continuously on site; the on-site fabrication of the steel rail adopts at least on-site rolling; the rolling is continuous rolling; there is also a casting process before the steel rail is rolled; and the casting process is a continuous casting process. Through the continuous casting and rolling processes, the rolled steel rail is in a continuous state. The continuous steel rail is laid directly after being fabricated by the continuous casting and rolling processes. By improving the existing equipment, the present disclosure transfers the fabrication process of the steel rail to the rail laying site and directly lays the steel rail into a continuous seamless rail.

A work train lays a rail of a railway track. The work train has a heating device with a heating zone, gas burners, and a radiant body interposed between the gas burners and the heating zone. The radiant body has openings that open into the heating zone. The work train is moved in a laying direction, so that at each moment a portion of the rail to be fixed passes through the heating zone. Heat is supplied to the rail to be fixed through the heating zone by feeding the gas burner so that no flame emerges from the openings in the heating zone and that at least 75% of the heat supplied to the rail is transmitted by radiation from the radiant body. Then the rail is fixed after the heat has been applied to a tie of the railway track behind the heating zone in the laying direction.

A work train lays a rail of a railway track. The work train has a heating device with a heating zone, gas burners, and a radiant body interposed between the gas burners and the heating zone. The radiant body has openings that open into the heating zone. The work train is moved in a laying direction, so that at each moment a portion of the rail to be fixed passes through the heating zone. Heat is supplied to the rail to be fixed through the heating zone by feeding the gas burner so that no flame emerges from the openings in the heating zone and that at least 75% of the heat supplied to the rail is transmitted by radiation from the radiant body. Then the rail is fixed after the heat has been applied to a tie of the railway track behind the heating zone in the laying direction.

The invention relates to a method for unloading, transporting and installing a railway track, which does not require the rail-carrying train to be brought closer after each cycle of unloading continuous welded rail (CWR), the train remaining parked at the end of the track already laid until all the CWR has been completely unloaded. According to the invention, the method consists of: fastening two rails to a crane of an unloading wagon and moving same through windows along the wagon, facilitating the descent thereof to the track; transferring the rails to a machine for pulling and positioning which moves along, leaving the rails supported on transport elements that move along the track already laid; transferring the rails from the track already laid to a section of sleepers; and moving the rails to their final position, using sliding elements placed on the sleepers.

The invention relates to a method for unloading, transporting and installing a railway track, which does not require the rail-carrying train to be brought closer after each cycle of unloading continuous welded rail (CWR), the train remaining parked at the end of the track already laid until all the CWR has been completely unloaded. According to the invention, the method consists of: fastening two rails to a crane of an unloading wagon and moving same through windows along the wagon, facilitating the descent thereof to the track; transferring the rails to a machine for pulling and positioning which moves along, leaving the rails supported on transport elements that move along the track already laid; transferring the rails from the track already laid to a section of sleepers; and moving the rails to their final position, using sliding elements placed on the sleepers.

In order to fix a rail of a rail track using a rail machine, the rail machine is moved in a working direction so that at all times a portion of the rail which is not attached to a cross-member of the rail track passes through a thermal conditioning zone of a thermal conditioning device of the rail machine, a temperature of a surface region of the portion of the rail passing through the thermal conditioning zone is modified using the thermal conditioning device by generating a non-homogeneous temperature distribution in the portion of the rail, and the portion of the rail is fixed to a cross-member of the rail track, after modification of the temperature of the surface region of the portion of the rail, without waiting for the temperature distribution in the portion of the rail to be homogenized.

In order to fix a rail of a rail track using a rail machine, the rail machine is moved in a working direction so that at all times a portion of the rail which is not attached to a cross-member of the rail track passes through a thermal conditioning zone of a thermal conditioning device of the rail machine, a temperature of a surface region of the portion of the rail passing through the thermal conditioning zone is modified using the thermal conditioning device by generating a non-homogeneous temperature distribution in the portion of the rail, and the portion of the rail is fixed to a cross-member of the rail track, after modification of the temperature of the surface region of the portion of the rail, without waiting for the temperature distribution in the portion of the rail to be homogenized.