Trevi Spa is carrying out the foundation works for the ambitious FOUR Frankfurt project.
The works include the construction of the foundation and protection perimeter wall of the excavation. Said procedure is carried out through the construction of a diaphragm wall and the production of about 380 large diameter bored piles (Ø up to 2000 mm).
Moreover, TREVI is responsible for building the drainage system.
Works started in October 2018 while the special foundation works are expected to continue until autumn 2020.