Project
The Ile de France Interdepartmental Road Directorate (DIRIF) undertook the hazard-proofing of 22 tunnels. Among these, the underground complex of Nanterre – La Défense was a major 15 km-long construction that linked two major highways: the A14 and the A86.
Hazard-proofing work included: the building of additional emergency exits, the installation of 300,000 m2 of fire protection, the redesign of high-voltage and low-voltage networks, ventilation and centralized technical management, and the setting up and maintenance of intelligent lighting.
Close collaboration between all staff enabled complex planning that led to successful night-shift tunnel construction.
Services
setec tpi co-led the engineering design (2010) and the site supervision (2010-2012). Previously, in 2009, setec undertook the preliminary design as part of the same JV.
setec’s assignment focused on:
- Technical studies
- The structures’ fire resistance
- The ventilation
- High-voltage facilities
- Works planning based on the Minimum Requirements of Operations
- Preliminary and Safety Files
- Site Operations File
- The technical coordination within the Group’s Project Management team
Key information
Client: DIRIF – Interdepartmental Directorate of Roads
Cost of projet : 110M€
Design & Construction PM JV: setec, Bouygues TP, SPIE Batignolles, Vinci Energies, AXIMA SEITHA, and COTEBA
Duration: Jan. 2010 – August 2012