3,538m
long
INDUSTRY, INNOVATION AND INFRASTRUCTURE
Build resilient infrastructure, promote sustainable industrialization and foster innovation
Economic growth, social advancement and action against the climate emergency depend largely on investment in infrastructure, sustainable industrial development and technological progress. Today, about 1 billion people live more than 2 km from a roadway, 940 million live without electricity, and 663 million lack improved drinking water sources.
ACCIONA participates in the entire infrastructure construction value chain, from the identification of opportunity, design and execution, to the operation and maintenance of the constructed works, using the most advanced and innovative techniques.
Performance quality and safety are two of the criteria that maximize the company's value proposal in the development of large infrastructure projects and that differentiate it from other competitors in the construction field.
The new infrastructure consists of the excavation of a double-track tunnel by means of an earth pressure shield with a free diameter of 9.60 m, and 0.32 cm precast voussoirs. A 60 kg/m track with a width of 1,668 mm and a distance between axes of 3.82 m embedded in an elastomeric matrix will be mounted on a concrete slab. On the sides of the track, there are several longitudinal 1-m paths under which the pipelines run.
The project included the construction of 8 ventilation shafts along the length of the tunnel, plus emergency exits, 2 of which will also house pumping wells and one ventilation shaft. The project includes the construction of 3 stations along the line, each with 165-m long platforms. Begoña Station was built using mining methods, whereas the stations of El Bibio and Viesques were built using a cut-and-cover method.
The electrification and the signalling and communications installations were not included in the project. The project also did not cover any tunnel ventilation or lighting components, cladding, finishing, or building installation.
GENERAL INFORMATION
- Location: Gijón, Spain.
- Contract type: Construction.
- Infrastructure: 3.91-km long tunnel with a diameter of 10.60 m. 3 new stations.
- Year of project completion: 2006