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For more information contact:
Paul Wenden
paul.wenden@flaktwoods.com
Tel: +44 (0) 1206 544122
Link to:
Application page - Metros
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Fläkt Woods has been awarded the contract to supply the entire Turin underground system with a custom-made ventilation solution.
The metro line will cut across the whole city and be ready in time for the Winter Olympic Games that will take place in 2006.
The Company is supplying a total of 44 fans, 2 fans in parallel for each of the 22 ventilation chambers. There are 11 chambers for the stations and 11 chambers for the tunnels. All fans are truly reversible long case JM Aerofoils.
Fläkt Woods is also supplying diffusers, silencers and dampers. The fans have 4 pole motors of 114 kW and are suitable for emergency temperature of 250°C/2h. There is a different rating for tunnel and station fans, tunnel fans have a duty and static pressure of 210.000 m3/h @ 1000 Pa and while station fans have a duty and static pressure 80.000 m3/h @ 700 Pa.
The Metro
Turin Metro will have a total length of around 28 km. Construction will take place in stages: work has already started, while the remainder, on the 4 km Porta Nuova - Lingotto section, will get underway in 2005.
The metro will use the VAL (Automated Light Vehicle) system, with automated controlled trains capable of carrying up to 440 passengers. There will be a train every 2 minutes in peak hours and every 4/6 minutes during the remaining operating period. This will mean 15,000 people per hour can be transported in both directions. Trains are equipped with rubber wheels, a feature contributing to higher speeds, lower braking distances and less vibration than on steel railway lines.
Stations will be built to an Architectural Plan prepared by Kohn & Associates, which rationalises and minimises internal itineraries while ensuring underground areas are as large and open as possible.
The typical station (width 19 m, length 60 m, depth 16 m) has been designed on three levels: a hall or entrance level; a mezzanine level to distribute the public and channel people to the right platform; a level giving access to the trains (equipped with automated platform doors, similar to those used for lifts, to prevent people from accidentally falling onto the track).
Trains and stations will be equipped with video surveillance and smoke detection systems that, together with the absence of closed spaces and an intercom system linked to the Command and Control Point (PCC), will guarantee maximum safety for users.
How it is being built
The tunnel itself is being constructed at a depth of 15/18 m using a TBM, a machine 7.8 m in diameter and 80 m long that, after excavating the hole with its cutter head, assembles prefabricated circular concrete sections (7 sections a day for an average progress rate of 10 metres) that form the lining of the tunnel, which is then ready for the rail tracks and the technological and security systems.
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