Gotthard Base Tunnel
Switzerland
All-hydraulic forming of complex cross-section! The 7400 m long Erstfeld contract section is the northern part of the Gotthard Base Tunnel, also including the construction of two 400 m long underground branch-offs built using the drill-and-blast method followed by CIP concrete lining.
Project data
- Year of completion
- 2011
- Project duration
- 10 Months
- Country
- Switzerland
- Address
- Erstfeld
- Realization
- JV 'ARGE AGN'
- Structure
- Tunnel
- Type of structure
- Mining-type tunnel
Floor-slab
- Construction method
- Segmented (non-monolithic)
- Cross-sectional shape
- Curved/round
- Clear width
- 17.65 m
- Clear height
- 10.40 m
- Formed length of tunnel
- 370 m
- Length of concreting section
- 10 m
- Number of casting sections
- 37
wall formwork
- Construction method
- Segmented (non-monolithic)
- Clear height
- 5.65 m
- Formed length of tunnel
- 370 m
- Length of concreting section
- 10 m
- Number of casting sections
- 37