Formwork traveller for Tunnel Legutiano 2-2

 



Formwork traveller for Tunnel Legutiano 2-2


Rúbrica Tunnels

Customer: Hergon Metropolitan
Country: España
Location: Legutiano
Year: 2013

Description:

Construction project of the Albertia tunnel, Bilbao-Donostia HSR. Legutiano Section (Álava) - Eskoriatza (Guipúzcoa), Subsection II.The new HSR will allow the interconnection of the three Basque capitals. Travel times between Vitoria-Gasteiz and Bilbao will be 28 minutes; between Vitoria-Gasteiz and San Sebastián, 34 minutes; and 38 minutes between Bilbao and San Sebastián.The HSR is part of Priority Project No. 3 of the European Atlantic Railway Axis, giving continuity in Spanish territory to the Madrid-Valladolid-Vitoria / Gasteiz line, extending it to the French border.

IDENTIFIED NEEDS:
Tunnel consisting of two tubes connected by auxiliary galleries every 400m. The left tunnel is 4.786m long and the right one is 4.777m.
Equipment consisting of 1 formwork and 1 formwork carriage, R1 = 4.58m and R2 = 7.75m, advance 15m.
Each tunnel has a free section of 57m2 that will house a single track of international gauge in each of them.
It allows the lower free passage for vehicles.

What was the challenge?:
Due to the technical conditions of the work, one of the travelers requires a special assembly procedure so that the structure can be assembled both outside and inside the tunnel excavation itself.

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