Engineering structures to be constructed within the influence zones of metro and tunnel alignments should be evaluated in terms of tunnel-ground-structure interaction. Within this scope:
- Deformations that may develop in the foundations of structures located within the tunnel influence zone as a result of tunnel construction are analyzed, and the resulting angular distortions are assessed.
- For new structures to be constructed within the influence zones of existing tunnel alignments, stress increases induced in the tunnel lining are evaluated, and the resulting internal forces in the permanent tunnel lining are checked against the capacity of the existing reinforcement.
