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Arraiz Tunnel

Spain

The rentable Doka tunnel formwork traveller, which can be adapted to any geometry, did sterling service here on one of the largest caverns in Europe. Due to the planned cavern width of over 27 m and the targeted construction time of only 4 months, Doka offered the client a special all-in-one solution.

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Project data

Year of completion
2010
Project duration
4 Months
Country
Spain
Town or city
Bilbao
Realization
Ute Arraiz
Structure
Tunnel
Type of structure
Mining-type tunnel

Floor-slab

Construction method
Segmented (non-monolithic)
Cross-sectional shape
Curved/round
Clear width
25.80 m
Clear height
13 m
Formed length of tunnel
75 m
Number of casting sections
6
Cycle time
13 -day cycle

Wall

Construction method
Partially monolithic
Cross-sectional shape
Curved/round
Clear width
14.84 m
Clear height
9.13 m
Type of carriage/traveller or formwork
Sidewall formwork
Number of casting sections
13