Foundations and special underground works

1361 – Naples – Poggioreale metro station (Italy)

Special foundations and consolidation works for the construction of the Poggioreale metro station on line 1 of the Naples Metro and construction of the tunnels of the Tribunale - Poggioreale section.

C.M.V. S.c.a.r.l.

Period of Execution:
February 2016 - October 2019

Works Amount:
€ 6.697.800,00


Construction of diaphragms in reinforced concrete with a rectangular section, 27 meters deep along the central body of the station, and 8-9 meters deep along the side exits of the Poggioreale station. Execution of a jet-grouting bottom plug in the station area and at the side exits, with length of 5 or 11 m and drilling depth up to 32 meters, due to the presence of ground water at a depth of approximately 6 m. Jet-grouting consolidations for the excavation of tunnels under the monumental cemetery of Naples, with columns having diameters of 1.000 mm, and a 50° and 80° inclination.