- Road construction and maintenance
- Urban development
- Building light-rail transit systems
- Building and maintaining railways
- Carrying out civil engineering mandates
- Making transportation infrastructure safe
- Feasibility studies and construction for drainage networks
- Building lasting infrastructure
- Installing road equipment
Feasibility studies and construction for drainage networks
In the city, worksites can perturb social and economic activity. Eurovia is aware of city residents' need in this regard: that is why we strive to minimize nuisances and make our urban worksites as unobtrusive as possible.
Accordingly, the use of self-compacting backfill (Autocan® or Recycan®) reduces the scope of drainage worksites, eliminates vibration that would have been produced by the compacting process, and restores networks to full operability quickly. An alternative to this process is the use of trenchless techniques, which minimize disturbances.
Water treatment at Rovinj in Croatia
Tegra, a Eurovia subsidiary in Croatia, built for the Rovinj commune a 1,400-m-long rain- and waterwater treatment network in rocky soil. The project included underwater pipe-laying, which was carried out by professional divers.
Heating system at Aubenas
Since December 2009, teams from Eurovia DALA - Aubenas have been taking part in the construction of one of the largest wood-heating systems in France. As part of its sustainable development policy, the Aubenas commune has entrusted a 24-year service mandate to Révia (a subsidiary of GDF Suez) for the construction and operation of a wood-heating system, using local...
resources, and the implementation of a network serving the commune's main building (hospital, schools, daycares, public services, etc.), large plants, and subsidized and community housing, including 3 primary radiators 7.895 km long and the equivalent of 3.7 km of secondary radiators and connections.
Eurovia, in consortium, is carrying out all excavation-related works: earthworks, pipe beds (average depth of 1.3 m), coating layer, trench cover, and road repair.
The Aubenas commune will also rehabilitate its wastewater and drinking water networks in streets impacted by the excavation: this work will be carried out on a retainer basis. In addition, some streets will be completely repaved.
Trenchless construction
To avoid digging trenches, Eurovia calls on the expertise of its subsidiary, Valentin, which uses innovative technologies such as microtunnelling in the construction of new subsurface networks.
Different techniques are employed:
• To upgrade networks: cured-in-place pipe...
• For maintenance and repair: reaming and grouting
Trenchless construction techniques can be used to create
subsurface networks and to install pipelines in optimal
conditions.
Repairs and upgrades to underground networks that do not permit human entry help to prevent or eliminate pipeline erosion and ensure infrastructure sustainability by restoring its original resistance and sealing strength.