12,6km
of tunnel
Construction of more than 12.6 kilometers of tunnel with a diameter of 2.9 meters.
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.
More than 8,200 meters were excavated to the tunnel’s halfway point, using a tunnel boring machine that had been modified to adapt to the specific geological conditions of the route. This section of the tunnel runs along the bottom of an open valley for 80 meters, where the new entrance portal is located.
The tunnel boring machine used on the project, originally a double-shield TBM, was adapted to the specific needs of this project and a single-shield rock TBM was chosen due to the complex geology of the route.
ENVIRONMENTAL IMPACT
In line with its commitment to sustainability, the joint venture (UTE) implemented measures such as the use of conveyor belts for the removal of earth, minimizing the use of locomotives, which are also electric.
This choice contributes to reducing to zero the emissions of polluting gases generated by transportation inside the tunnel during its construction, in line with ACCIONA's sustainability principles.
GENERAL INFORMATION
- Location: Zaragoza, Spain.
- Contract type:
- Infrastructure: +12.6 km of tunnel with a diameter of 2.9 meters.
- Year of completion: