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The Italian art of tunneling - 23/09/2020

Giovi 3rd Pass Railway

The Valico tunnel (27km) will be the longest (#1) in Italy and the #11 in the world. The railway line, 53km long, 36km of which in tunnels, with a max. gradient of 1.25% will make the Genoa port more competitive for freight transportation in Europe.

Official website: https://www.terzovalico.it/

  • Galleria di Valico 27,250 km (conventional and TBM excavation)

  • Galleria Serravalle 7,094 km (TBM excavation)

  • Galleria Campasso 0,716 km

  • Galleria Pozzolo 1,984 km (cut & cover tunnel)

 

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Serravalle tunnel - TBM assembly at north portal in Novi Ligure
Preparation for cross-passage excavation
Aerial view of the Polcevera site
Tunnel lining segments stacking
Shotcrete
Invert excavation
Rockbolts
Temporary Linng
Portal construction
TBM
Radimero launch shaft
Special formwork for junctions
Castagnola tunnel - Junction
Worker
Model of formwork for junctions
Excavation face
Self-supporting formwork
Self-supporting formwork
Formwork
Ventilation of Castagnola tunnel junction
Excavation face
Formwork permanent lining
Cavern excavation
Lining reinforcement
Cerimony for twin breakthrough on Valico and Serravalle tunnels
TBM
Spoil removal
Reinforcement of excavation face
Cavern
Ventilation

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