Technical details
Client
Webuild S.p.A. (ex Salini Impregilo) and NGE
Dates
2019 – ongoing
Missions
Independent Check
Location
France
Perimeter
Geotechnics and hydrogeology, Temporary works, Internal structures, Tunnel, Connection Branches, Monitoring system, Vulnerability analysis of buildings BIM modeling.

Line 16 of the Grand Paris Express is one of the new metropolitan connections designed to connect the north-eastern border region of Paris with the capital.

Line 16 crosses the departments Seine-et-Marne, Seine-Saint-Denis and Val-d’Oise, crossing lines 11 and 17 and connecting at the ends with lines 15 North and 15 South. The 10 stations along the route of line 16 will welcome a daily average of around 800,000 travellers.

Line 16 is entirely underground, with a length of 27.5 km and the use of 8 TBM. The works’ conclusion is scheduled for 2030. For the creation of this new metropolitan line, three construction lots were planned. The second lot was won by the Salini Impregilo-NGE group in autumn 2018. This lot, which runs from Aulnay-sous-Bois to Chelles, includes 4 stations, 11 annexed works and 11.1 km of tunnels. The last one will be realized by employing 2 TBM.

In this complex project, SYSTRA SWS is responsible for the external control mission in the execution phase of 16 Lot 2 line.

The mission provides for the control and approval of all the documentation concerning the following topics:

  • Geotechnics and hydrogeology;
  • Temporary works;
  • Internal structures;
  • Tunnel;
  • Connection Branches;
  • Monitoring system;
  • Vulnerability analysis of buildings;
  • BIM modeling.
Some examples of projects in Tunnelling & Underground, Urban mobility
A14 BOLOGNA – BARI – TARANTO HIGHWAY CLUJ-NAPOCA METRO & SUBURBAN TRAIN E6 RENTVANNSTUNNEL FRÉJUS TUNNEL SAFETY GALLERY GRAND PARIS EXPRESS, Line 14 lot GC04 TOPRAKKALE – BAHÇE CONVENTIONAL RAILWAY
See a selection of SYSTRA's projects