Tunnels
Structural engineering for tunnels and underground structures: linings, cut-and-cover frames, shafts and cross passages.
Underground structures in cut-and-cover and mined construction.
What we take on
- Frame and trough structures in cut-and-cover
- Linings, inverts and intermediate slabs
- Shafts, emergency exits and cross passages
- Water-retaining construction and uplift verification
Ground and structure are one system
For a tunnel the analysis cannot be separated from the ground. Bedding, water pressure, excavation sequence and deformation govern the internal forces more than the traffic load models do. We analyse the governing construction stages, not just the final condition.
Watertightness
Water-impermeable construction and crack width control are the principal verifications here. Concrete technology, joint detailing and pour sequence are agreed jointly with the contractor.
Transport Infrastructure