Line 4 is part of Milan metro system; length: 15 km; n. 21 stations; it is the second driverless line in the city.
Alpina prepared preliminary and detailed design of structural and geotechnical works and assistance during construction of:
8 underground stations,
3 underground buildings,
3 tunnels,
1 bridge.
Geotechnical conditions were loose soils below water table level in urban context (existing buildings and infrastructures).
The main structures were designed and built using either bottom-up or combined bottom-up and top-down methods for deep excavations (up to 30m, 20m below water table).
Capitale Sociale € 1.155.170 interamente versato C. F. e iscrizione al Registro Imprese di Milano 01033390392 REA 1337939 Partita IVA 10241540151
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