A device for heating of railway tracks is provided. The device comprises a magnetic field generator fed with a low-frequency current. The magnetic field generator is formed by a device without a circuit returning a magnetic flux generated by the magnetic field generator. Hereby the magnetic flux can be returned via a heater. The heater is a material generating heat when placed in the magnetic field. The heater can be the railway tracks or a plate provided in conjunction with the railway tracks.

A clip assembly for securing first and second tuned mass dampers to respective first and second sides of a rail. The clip assembly includes a bar element having a connector portion extending between first and second ends thereof and formed to be positioned in a predetermined location relative to the rail at least partially under a foot of the rail, and a first clamping arm connected with the connector portion at the first end of the connector portion, the first clamping arm being formed to engage the first tuned mass damper. The bar element also includes a linkage section located at the second end of the connector portion. The clip assembly includes a second clamping arm extending between upper and lower ends thereof, the lower end comprising a locking portion securable to the linkage section, and the upper end being formed for engagement with the second tuned mass damper.

A tuned mass damper for damping airborne vibrations at one or more rail frequencies from a rail generated by movement of wheels over the rail. The tuned mass damper includes one or more damper elements including a damper element material, and a body element including a body material. The damper elements are at least partially embedded in the body element. The body element has inner and lower exterior surfaces formed to fit within first and second pockets on opposite first and second sides of the rail defined by a web portion and a foot. The damper element material and the body material are selected and formed so that the tuned mass damper vibrates in response to movement of the wheels over the rail at one or more damper frequencies that at least partially interferes with the rail frequencies.

The present invention concerns a gabion (1) comprising: a cage (10) basically box-shaped, made up of a bottom (11), two frontal walls (12, 13) and two side walls (14, 15). That bottom, frontal and side walls are all formed from meshes respectively (11.1, 12.1, 13.1, 14.1, 15.1) that are fixed to each other; two compartmenting partitions (20, 30), that each connect the side walls to one other within the interior of the cage so that the internal volume (V10) of the cage is divided into: two frontal compartments (C1, C2) that are each filled with a filler material (70) made up of aggregate that cannot pass through the respective meshes of the bottom, the frontal or the side walls, nor through the compartmenting partitions in such a way that it is retained within those frontal compartments, and an intermediate compartment (C3), bounded by the compartmenting partitions and which is able to receive a granular acoustic insulation material (2); and at least one lifting partition (50, 60), that fixedly connects the frontal walls (12, 13) to each other within the cage extending through each of the frontal compartments and the intermediate compartment, which, opposite the bottom (11), is provided with at least one grab handle (51, 61), and which, for the part that is set out in the intermediate compartment, is suited to allowing the acoustic insulation material granules (2) to pass through it in such a way that the acoustic insulation material may spread freely, within the intermediate compartment, on either side of the lifting partition.

A system for actively attenuating acoustic vibrations of a rail for rail traffic is provided including at least one sensor for detecting at least a vertical acoustic vibration of the rail, at least one actuator for exciting at least a vertical counter-vibration of the rail and at least one control unit communicatively connected to the at least one sensor and the at least one actuator for controlling the at least one actuator depending on the vibration detected by the sensor, the counter-vibration being adapted to destructively interfere with the detected vibration, and the at least one actuator being mechanically coupled to the rail and to a carrier element supporting the rail. Also provided is a carrier element for the system and a method for actively attenuating acoustic vibrations of a rail for rail traffic.

A special trackwork assembly including a special trackwork body formed to support wheels of a train moving over a running surface portion of an exterior surface of the special trackwork body that generate traffic-related vibrations of the special trackwork body having one or more frequencies of interest. The special trackwork assembly also includes one or more tuned mass dampers secured to the special trackwork body and formed to vibrate, in response to the traffic-related vibrations of the special trackwork body, at the frequency of interest, to at least partially dampen the traffic-related vibrations of the special trackwork body.

A module (100) for a system for the laying of underground and railroad and tram lines both in tunnel and on the surface, in particular railroad and tram lines, comprising a supporting slab (101) for the tracks (6), with substantially parallelepiped shape, the slab having at least four peripheral housings (1), passing from the extrados to the intrados and suitable to house respective adjustable levelling devices (120).

A module (100) for a system for the laying of underground and railroad and tram lines both in tunnel and on the surface, in particular railroad and tram lines, comprising a supporting slab (101) for the tracks (6), with substantially parallelepiped shape, the slab having at least four peripheral housings (1), passing from the extrados to the intrados and suitable to house respective adjustable levelling devices (120).

A rail having a recess or groove therein, wherein a heater is located at least partially within the recess or groove, and a method of manufacturing same, including providing a forming a rail with a recess or groove therein, and installing a heater in the recess or groove.

A rail having a recess or groove therein, wherein a heater is located at least partially within the recess or groove, and a method of manufacturing same, including providing a forming a rail with a recess or groove therein, and installing a heater in the recess or groove.