This invention relates to a cut and cover method of constructing grade separation structures. The methods include partially burying precast substructure elements with associated trench boxes under live traffic. Once the precast substructure elements are buried the substructure is completed and the bridge span is installed. Other methods include installing precast superstructure elements with formwork system and forming a bridge substructure and excavating underneath the superstructure once the substructure is formed.

This invention relates to a cut and cover method of constructing grade separation structures. The methods include partially burying precast substructure elements with associated trench boxes under live traffic. Once the precast substructure elements are buried the substructure is completed and the bridge span is installed. Other methods include installing precast superstructure elements with form-work system and forming a bridge substructure and excavating underneath the superstructure once the substructure is formed.

A system and method for automating railroad maintenance for a tie gang using electronic tie marking (ETM) configured to optimize railroad asset maintenance. The system enables the automating of an adaptive maintenance process for the asset that is being maintainanced. The system can identify a railroad asset scheduled for maintenance using various forms of inspection including real-time kinematic (RTK)-corrected GPS data, radar signal processing data, and real-time imaging. The system also provides for the acquisition and upload of asset pictures for verification and analysis of a railroad asset. The system can identify a next location to perform maintenance and can calculate an optimum path based on sensor input incorporating machine-specific and environmental characteristics. The system further can provide a customizable user interface to identify, track, and process information related to maintenance of the railroad asset.

A system and method for automating railroad maintenance for a tie gang using electronic tie marking (ETM) configured to optimize railroad asset maintenance. The system enables the automating of an adaptive maintenance process for the asset that is being maintainanced. The system can identify a railroad asset scheduled for maintenance using various forms of inspection including real-time kinematic (RTK)-corrected GPS data, radar signal processing data, and real-time imaging. The system also provides for the acquisition and upload of asset pictures for verification and analysis of a railroad asset. The system can identify a next location to perform maintenance and can calculate an optimum path based on sensor input incorporating machine-specific and environmental characteristics. The system further can provide a customizable user interface to identify, track, and process information related to maintenance of the railroad asset.

A fish plate clamp for unloading rails 1. The fish plate clamp includes a support element (11, 12) with a first piece (11) and a second piece (12) each one located on a face of the rail (1). Each piece of the support element (11, 12) includes an internal mortise (13) in the area of the web (3) of the rail (1). The fish plate clamp also includes a gripping element (14) located in an internal mortise (13) of the support element (11, 12). The internal mortises (13) have an inclined surface (15) in a manner that, when the gripping element (14) moves along the length of the inclined surface (15) of the internal mortise (13) in the direction of the pull of the rail (1), the gripping element (14) latches onto the web (3) of the rail (1).

A fish plate clamp for unloading rails 1. The fish plate clamp includes a support element (11, 12) with a first piece (11) and a second piece (12) each one located on a face of the rail (1). Each piece of the support element (11, 12) includes an internal mortise (13) in the area of the web (3) of the rail (1). The fish plate clamp also includes a gripping element (14) located in an internal mortise (13) of the support element (11, 12). The internal mortises (13) have an inclined surface (15) in a manner that, when the gripping element (14) moves along the length of the inclined surface (15) of the internal mortise (13) in the direction of the pull of the rail (1), the gripping element (14) latches onto the web (3) of the rail (1).

A method for renewal of a track includes picking up a plurality of old track panels using a crane jib projecting over the track from a train end of a work train and depositing the old track panels on the work train, thus creating a renewal gap delimited by a gap beginning and a gap end. New ballast is introduced with the aid of the crane jib into the gap end of the renewal gap. Subsequently, a new track panel pre-deposited on the work train is placed by the crane jib on the graded ballast of the gap end. A work train for renewal of a track is also provided.

A method for renewal of a track includes picking up a plurality of old track panels using a crane jib projecting over the track from a train end of a work train and depositing the old track panels on the work train, thus creating a renewal gap delimited by a gap beginning and a gap end. New ballast is introduced with the aid of the crane jib into the gap end of the renewal gap. Subsequently, a new track panel pre-deposited on the work train is placed by the crane jib on the graded ballast of the gap end. A work train for renewal of a track is also provided.

The invention relates to a railway work vehicle comprising a chassis supported by a drive mechanism and work devices supported by the chassis. According to the invention, the transportation of material within the work vehicle below and/or above and/or next to the working devices can be improved by using at least one conveyor track on which conveyor bodies for objects or objects forming conveyor bodies, in the form of a parceled goods, can be driven along the working vehicle.

The invention relates to a railway work vehicle comprising a chassis supported by a drive mechanism and work devices supported by the chassis. According to the invention, the transportation of material within the work vehicle below and/or above and/or next to the working devices can be improved by using at least one conveyor track on which conveyor bodies for objects or objects forming conveyor bodies, in the form of a parceled goods, can be driven along the working vehicle.