Railway tunnel typical section showing support systems, C25 final lining, and PVC membrane insulation. Incl. Ø200/Ø300 PVC drainage pipes, granular filter, and cable channel details.
Railway tunnel typical section showing support systems, C25 final lining, and PVC membrane insulation. Incl. Ø200/Ø300 PVC drainage pipes, granular filter, and cable channel details.