TECNE – Genoa Sub-Port Tunnel

CSI contributed to the geological characterization of the area where the Genoa Sub-Port Tunnel will be built: a project approximately 4.2 km long, including 3.4 km of tunnel, extending from the San Benigno junction in the west to Viale Brigate Partigiane in the Foce district in the east. The structure includes two separate main tubes, one for each direction of travel, constructed using mechanized excavation.

Through a campaign of continuous coring, CSI reconstructed the stratigraphic sequence of the area involved in the works, with particular attention to the thickness of the geological layers, their spatial distribution in relation to the tunnel's features, and the collection of samples for laboratory analysis.

To avoid interference with port activities, deep drilling was carried out from the quay, with boreholes oriented and inclined just a few degrees from horizontal to reach strategic points along the planned alignment.

CSI:

• provided the geological data necessary for detailed design and collected samples for geotechnical characterization;
• ensured the achievement of targets and the maintenance of planned drilling trajectories, verified through gyroscopic spatial logging;
• completed the program within the required timeframe.