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.
Project data
- Year of completion
- 2010
- Project duration
- 4 Months
- Country
- Spain
- Town or city
- Bilbao
- Contractors
- 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