Tunnels
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Tunnels
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We are a multi-sector engineering group that renders planning, design, construction and operational services in the transportation, building, automotive, energy and environment industries. We have a portfolio of projects developed in more than 20 countries during the last 27 years.
As a group that is committed to progress, we are interested in contributing to the improvement of the countries where we operate. Our philosophy is based on the fact that design and construction are inseparable, and that the application of a deep knowledge of each of them is fundamental to the success of any project.
GPO is a multidisciplinary Engineering and
Architecture Group with
global presence and local nature
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GPO offers engineering and architecture services during all the developing stages of a project: planning, design, construction and operation.
Both the national and international growth of the company, together with the change in our clients’ needs, which widens every day, has led us to broaden the reach of our services and meet new challenges. As a result, we have classified our activity areas into five markets: Transportation, Building, Automotive, Energy and Water.
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Services
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The constructive method of a tunnel plays a very important role within the project and it must be carefully heeded, since it is going to be crucial during the whole constructive process. The final design, geotechnical investigations, calculations, alignment definition or entrance geometry are some of the aspects which must be planned according to the chosen constructive method.
Choosing a determined constructive method leads to choosing a determined kind of supervision team, a specific ground sounding and some other particular decisions that depend on the constructive method.
Constructive Method
By Service
Total: 124,27 Km
Project Management
DetailedDesignsFeasibility Studies Construction Supervision
14,34 50,17 10,13 49,64
By Constructive Method
50,55 4,7 69,03
NATM Traditional TBM/EPB
Total: 124,27 Km
By Use
27,4411,8 39,41 24,80 20,81
WaterSupply
Metro Roads High SpeedRail
Rail
Total: 124,27 Km
GPO provides comprehensive transportation related services including planning, engineering, architecture and construction. Our firm works in close partnership with our
clients through all stages of the process from initial corridor concept to feasibility studies, detailed design, preconstruction
and construction management, and any support activities required in order to achieve an optimal solution.
Our experience with intermodal facilities and major infrastructure projects enables us to effectively integrate
a project across all modes of transportation and with the surrounding environment. We approach each project
with full consideration of impact on the whole and the interrelationship with other elements.
Tunnels
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Uxes Tunnel
In the Pocomaco - Uxes section, a new 4,339 m long double track line was built. In the Pocomaco - San Cristobal section, a new 3,450 m long double track line was built to reach the San Cristobal station in A Coruña. Two new tunnels had to be
executed and the Vío tunnel had to be enlarged. Since the tunnel existed already, the sequence of works was the following: execution of a micropiles support, demolition of the existent lining, excavation and execution of the new lining.
Service Construction SupervisionClient Ministerio de Fomento (Spanish Ministry of Public Works) (Spanish Ministry of Public Works)
Uxes Tunnel
High Speed Atlantic Axis. Section: Uxes – Pocomaco – San CristóbalA Coruña, Spain
Service Feasibility StudyClient Generalitat de Catalunya (Autonomous Government of Catalonia) | GISA
Line 8 Tunnel of Ferrocarriles de la Generalitat Catalana
Line Extension. Section: Plaça Espanya - Francesc Macià - Glòries - BesósBarcelona, Spain
Service Feasibility Study | Environmental Impact Assessment | Detailed DesignClient Generalitat de Catalunya (Autonomous Government of Catalonia) | GISA
Terrassa Tunnel
Extension of the FGC line in TerrassaBarcelona, Spain
16 17Cerceda - Meirama Tunnel
The Cerceda – Meirama is a 8.1 km long segment and it is part of the Atlantic High Speed Rail Axis. It is a bypass of the existing A Coruña -Vigo line. In this segment two tunnels had to be executed: Viris and As Revolta. They meet the new standards in comfort, safety and operation. Moreover, the whole project included a new viaduct, 4 bridges, 3 over passes, 3 under passes, 1 station and 2 connecting tracks with the existing line. The low quality of the terrain forced the use of heavy support lining along the tunnel. In some cases the terrain had to be reinforced with injections.
Service Construction SupervisionClient Ministerio de Fomento (Spanish Ministry of Public Works)
Cerceda - Meirama Tunnel
High-Speed Atlantic Axis. Section: Cerceda - MeiramaA Coruña, Spain
Service Feasibility StudyClient Ministerio de Fomento
Castelldefels - Cornellà - Barcelona Tunnel
New Line of the Commuter Network of BarcelonaBarcelona, Spain
Service Construction SupervisionClient Ministerio de Fomento (Spanish Ministry of Public
Works)
Queixas Tunnel
High-Speed Atlantic Axis. Section: Queixas Bypass
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Júcar Tunnel
The high-speed rail connection from Madrid to the Mediterranean coast (Valencia & Murcia) crosses the Júcar River valley. It is just before the crossing of this river, and due to the rigidity of HSR parameters and the environmental constraints, that a tunnel through the tertiary soils of the Spanish “meseta” had to be executed.
A tunnel was constructed for the high-speed line between Albacete and Cuenca, located near the Júcar River, which is crossed by a viaduct next to the tunnel’s entrance. The Environmental Impact Assessment required the execution of a tunnel in order to limit the visual impact and to provide protection to the aquifers. The tunnel was built through the tertiary soils of the Castilian “meseta” (which consists of sand, gravel and clay). Heavy lining was needed to support the terrain.
Service Detailed Design | Construction SupervisionClient Ministerio de Fomento (Spanish Ministry of Public Works) | ADIF
Júcar Tunnel
Levante High Speed Rail Corridor. Section: Quintanar del Rey - La GinetaAlbacete, Spain
Service Construction SupervisionClient Ministerio de Fomento (Spanish Ministry of Public Works) | ADIF
Almendral Tunnel
Murcia-Almería High Speed Rail Corridor. Section: Pulpí – Almería. Subsection: Barranco de Gafarillos - Los Arejos. Múrcia, Spain
Service Detailed DesignClient Generalitat de Catalunya (Autonomous Government of Catalonia) | GISA
Clariana Tunnel
C-55 Road Cardona - Solsona. Section: Clariana de CardenerBarcelona and Lleida, Spain
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The A-2 freeway is one of the main freeways of Spain. It connects Madrid and Barcelona. Years after the construction of this infrastructure, an upgrade was needed in order to reach the safety and service standards. The works consisted of the extension of the tunnel in the A-2 freeway, between Barcelona and Igualada. The Bruc Tunnel is a double road tunnel that crosses the massif, separating the region of Anoia and the Llobregat valley (and therefore the access to Barcelona), which is used daily by 35,000 vehicles. It was necessary to find a constructive method that did not affect the tunnel or the evacuation tunnel existing between them.
Service Detailed DesignClient Generalitat de Catalunya (Autonomous Government of Catalonia) | GISA
Bruc Tunnel
A-2 Freeway. Improvement Works. Section: Igualada - EsparragueraCatalonia, Spain
Bruc Tunnel
Service Detailed DesignClient Ministerio de Fomento (Spanish Ministry of Public Works) | ADIF
Novelle Tunnel
High-Speed Atlantic Axis. Section: Das Maceiras - RedondelaGalicia, Spain
Service Geological SurveyClient Ministerio de Fomento (Spanish Ministry of Public Works)
Sierra de Callosa Tunnel
Levante High Speed Rail Corridor. Section: Orihuela - Albátera Alicante, Spain
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Bracons Tunnel
C-37 road connects the cities of Vic and Olot, around 80 km north of Barcelona, that were separated by a mountainous massif that made the travel difficult and long. The new infrastructure is a conventional road that consists of two lanes, one for each direction, with a third lane in various segments for slow vehicles, whose most important and complex stretch is a 4.5 km tunnel. The whole project contains 5 other tunnels of minor length that serve as access to the main tunnel. All safety requirements were adopted in this tunnel to reach the national and international standards.
Service Construction SupervisionClient Generalitat de Catalunya (Autonomous Government of Catalonia) | GISA
Bracons Tunnel
C-37 Road Vic - Olot. Section: Torelló - Sant Esteve d’en BasBarcelona and Girona, Spain
Service Construction SupervisionClient Ministerio de Fomento (Spanish Ministry of Public Works)
Railway Tunnel in Barajas Airport
Airport Access Madrid, Spain
Service Construction SupervisionClient Túnel d’Envalira, S.A.
Envalira Tunnel
Construction of Envalira TunnelAndorra
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The line 9 of Barcelona metro, with a total length of 47.8 km, is the longest underground line in Europe. This line connects the north part of Barcelona’s metropolitan area with the southern part, passing through the western quarters of the city. It is a 15.439 m long section, 610 m of which were executed through the cut-and-cover method, and the remaining (14,829 m) were executed by a tunnel boring machine with EPB shield of 9,400 mm in diameter. The tunnel execution had to deal with a water table close to the surface.
Service Construction SupervisionClient GISA
Tunnel of the Line 9 of Barcelona Metro
Barcelona Metro Network. Extension: Llobregat - Parque LogísticoBarcelona, Spain
Service Detailed DesignClient Trasagua
Sierra de Espadán Tunnel
Water transfer from the Ebro River. Hydroelectric exploitation of Mayés reservoirMúrcia, Spain
Line 9 Tunnel
Service Preliminary Design | Feasibility StudyClient Ministerio de Fomento (Spanish Ministry of Public Works)
Figueres Tunnel
N-II Road. Madrid - Barcelona - Frontera Francesa Spain
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Fontsanta - Trinitat Tunnel
For decades, Barcelona’s water supply has been taken from the Ter and Llobregat rivers (north and south of metropolitan area), using two independent pipeline systems. The extreme droughts that affected this region historically forced the connection of both pipelines, in order to provide a more flexible operation. This connection is done by an 11 km long tunnel, passing through the Collserola Massif in West Barcelona. The tunnel, 6 m in diameter, has been executed by two tunnel boring machines, one of which coming from the Fontsanta water facilities in the south, and the other one from Trinitat in the north. The materials excavated by the TBM were paleozoic schistes and black shales.
Service Project ManagementClient Generalitat de Catalunya (Autonomous Government of Catalonia)
Fontsanta - Trinitat Tunnel
Connection of Barcelona water supply branches (Ter and Llobregat)Barcelona, Spain
Service Feasibility StudyClient Ministerio de Fomento (Spanish Ministry of Public Works)
Tosses Tunnel
N-152 Road Barcelona - Puigcerdà. Section: Ribes de Freser - La MolinaBarcelona - Girona, Spain
Service Conceptual Design | Public and Private Collaboration ProjectClient Generalitat de Catalunya (Autonomous Government of Catalonia) | GISA
Diagonal Axis Tunnels
C-15 and C-37 Roads. Sections: Vilanova i la Geltrú - Vilafranca del Penedès - Igualada - ManresaCatalonia, Spain
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Sabadell Tunnel
Sabadell is a city near Barcelona with 200,000 inhabitants. FGC is one of the rail agencies operating in the region and planned to extend the Vallès line in order to improve the service and provide a metro line for Sabadell. To reach this purpose, an urban tunnel was constructed, which includes four stations along the 4.9 km route. The tunnel was executed in the tertiary and quaternary soils of Vallès. During most of its length, the infrastructure is a double single track tunnel with a diameter of 6 m, constructed by a Tunnel boring machine with EPB shield. Some specific sections (maneuvers track and garages) were constructed through traditional methods since they had to accommodate a double track tunnel.
Service Construction SupervisionClient Generalitat de Catalunya (Autonomous Government of Catalonia) | GISA
Sabadell Tunnel
Urban Railway Network of Barcelona. Extension of FGC line in SabadellBarcelona, Spain
Service Construction SupervisionClient Generalitat de Catalunya (Autonomous Government of Catalonia) | GISA
Pau Casals Tunnel
A-16, Barcelona - Comarruga Highway. Section: Sitges - El VendrellBarcelona - Tarragona, Spain
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