Tunnel design and construction has frequently been described as an art rather than a science, because the geotechnical complexities of most tunnelling site are often too numerous to deal with in a strictly scientific manner.
Experience is therefore an essential requirement for the success of any tunnelling project.
Royal Haskoning has been involved in a number of tunnelling projects throughout the world. Work undertaken has ranged from assessment of existing structures, feasibility studies through to detailed design and construction supervision.
- immersed tube tunnelling for large river crossings
- feasibility studies for tunnels for flood relief drains - segmental lined small diameter tunnels
- large diameter pipelines installed for major sewer outfall schemes
- cut and cover construction for underground railways
- checks on the impact of new construction on existing tunnels
- assessment of old railway tunnels
- pipe jacking works