RFI Rete Ferroviaria Italiana

Trains Workshop, Mestre

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The futuristic RFI (Italian Railway Network) maintenance station in Mestre was designed to minimize the downtime of High Speed ​​Trains.

The futuristic RFI (Italian Railway Network) maintenance station in Mestre was designed to minimize the downtime of High Speed ​​Trains.

To make the washing and maintenance operations of the trains as fluid as possible, a structure has been created that allows trains to travel through the shed autonomously and for technicians to comfortably access all areas of the train, including the girth and roof.

250 meters of elevated track on columns were built for each of the 4 lanes of the workshop.

The 8,500 m² warehouse was fully fitted out with a removable rigid catenary, which allows the convoy to move without the towing of other tractors.

24 movable arms for each of the 4 internal tracks, equipped alternately with 12 motors, activate the displacement of the catenary once the train has reached the position, thus allowing to perform maintenance from above in total safety, through 7 service walkways elevated.

For girth operations, on the other hand, each raised aisle is equipped with an axle lowering system and Bertolotti opening tracks, which facilitate work on wheels and trolleys.

The equipment is completed by the mighty 10-tonne Demag overhead crane, with safety sensors.

In this regard, each track is also equipped with an individual safety system operated by sequential interlocking locks.

To connect the area to the railway network outside the shed, 5 km of tracks were laid, which create the access routes both to the internal tracks of the shed and to the two external tracks of the area used for washing the trains.

The internal installation was completed in record time in just 105 days!

The peculiarities of the Drytech Tank System contributed to this result.

The fact that the installation and injection activities of the Drytech System are parallel and independent from other construction site activities, and from the weather, has actually made it possible to eliminate waterproofing from the time schedule, accelerating the construction site as a whole.

Furthermore, the control of the shrinkage crack guaranteed by the Drytech Tank has considerably speeded up the casting operations.

Ownership: RFI – Italian Railway Network, Roma

Works Management: RFI – Ing. Francesca Perrone, Padova

Structure: Sogen, Padova

Construction:
Quadrio Gaetano Costruzioni, Talamona / Notari Costruzioni Speciali, Aqui Terme

Drytech Tank: 7,600 m²

Railway underpass, Vigevano

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A new pedestrian underpass was built under the Vigevano station, which allows travellers to safely access the platforms and connects the two districts on either side of the station.

A new pedestrian underpass was built under the Vigevano railway station, which allows travellers to safely access the platforms and connects the two districts on either side of the station.

The waterproof structure was designed and built with the Drytech Tank System, without interrupting railway traffic.

A suspended metal structure was created to support the tracks, closing one track at a time in rotation, diverting circulation to the others from time to time.

The underpass was made of watertight concrete based on the Drytech recipe, defined by Drytech Engineering on the basis of the aggregates present in the concrete mixing plant chosen by the Quadrio company.

The construction site did not affect the normal circulation of the trains and, in turn, Drytech did not interfere with the progress of the works, since its activities are parallel to the construction ones and are in fact removed from the work schedule.

Ownership: RFI Rete Ferroviaria Italiana 

Structure: Intera Srl, Roma 

Construction: Quadrio Gaetano Costruzioni SpA, Morbegno

Drytech Tank: 1,580 m²railway

Railway underpass, Albairate

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DRYflex resin injections to waterproof a road subway, without having to interrupt the upper railway traffic.

A waterproof underpass without having to interrupt the upper railway traffic.

The renovation of the Albairate road underpass was necessary due to the failure of the existing bentonite system.

The structure was restored with DRYflex resin injections in the movement joints and in the casting joints.

The underpass began to leak a few months after opening.

Drytech intervened from inside the building, without structural demolitions or external excavations and, above all, without limitations to the normal circulation of trains on the Milan-Vigevano line.

Like any Drytech renovation, this too allowed immediate verification.

Ownership: RFI Rete Ferroviaria Italiana

Restoration project: Ing. Maurizio Schiavo, Padova

Restoration company: D’Adiutorio Appalti e Costruzioni Srl, Montorio al Vomano

Drytech restoration:
277 m movement joints;
133 m joints.