NICE (06) - Nice-Côte d'Azur Airport – Prince Albert II of Monaco's hangar
SOGEAMO (S.A.M. Société de gestion et d'Assistance à la Maîtrise d'Ouvrage
Architectes Côte d'Azur F. Chapus, A Belhassen, P.Clavel et J.C. Laborde
Description of project:
Opened in April 2013, a 2,500 m² hangar and its apron accommodate Prince Albert II of Monaco’s new private plane in the eastern sector of the NICE-Côte d’Azur airport zone.
The major loading (substantial compression and lifting forces, significant horizontal forces) and the seismic risk (liquefaction of the soils) led to treatment of the foundation soil by means of tamped columns.
The tamped columns, which go down to a depth of 12 m, have three main roles:
- dealing with the risk of liquefaction (role of vertical drains);
- improving the bearing capacity of the soil beneath the foundations by strip footings and the slab;
- reducing settlement.
Missions entrusted to FONDASOL:
- G12 Pre-project geotechnical study:
- Geological, geotechnical, and hydrogeological context of the site,
- Construction principles to be adopted (consolidation of the soil, foundations, bases for the slabs and apron),
- Constraints for the success of the works.
- G2 project geotechnical study – PRO phase, including the pre-sizing report for the soil improvement function.
- G4 Geotechnical supervision G4 for construction of the tamped columns and the load-distribution mattress.
- Geotechnical investigations carried out in the context of these missions: cored boreholes, stato-dynamic penetration tests down to a depth of 15 m, piezometers, laboratory tests (water content, granulometry).
Date mission carried out: September 2011 to March 2012
Fondasol has responded to the following problems:
Mission carried out by the following branches: