The Llogara tunnel is located in the eponymous national park, located in the heart of the Cerauni Mountains and along the Albanian Riviera. It is placed on steep and geologically rich terrain, predominated with limestone and flysch. The construction of a tunnel means a much safer and essential road connection between the south tourist coast with other regional towns. The architecture is based on minimal intervention in nature.
A consortium of design companies led by the iC group offered the client a comprehensive solution. The project team consisted of iC Salzburg, Elea iC, IBE, SEED Consulting, InfraKonsult, and partners from Austria, Slovenia, Albania, and Italy. The entire project was designed in a highly demanding period of six months, including a two-pipe tunnel connected with crossbeams, a bridge with sloping spans of 110 m, and a bridge with a shorter span.
The two-pipe tunnel consists of a main and an emergency tunnel, which will be used to remove drivers in the event of an accident. The north and south portals of the tunnel are designed as integral reinforced concrete structures. According to security requirements, a fire station will be built on the northern portal, which will offer a permanent presence of firefighters. A water reservoir will be placed above the tunnel to ensure water to firefighters in case of fire. The tunnel’s power plant and ventilation will be built on the south portal.
The primary substructure and internal lining of the tunnel, together with both portal areas, were entirely designed within the iC group. To ease the coordination within the consortium, we used geolocated BIM models based on geometry and systematic input of information for extracts of quantities and preparation of inventories.
In addition to the project documentation, the same models also served for visualization and presentation material in all project phases.
Project typeLlogara tunnelLocationLlogara, AlbaniaSection lengthTotal length of the route is 7,42 km, including the 5.99 km long main tunnel and 6 km emergency tunnelInv. value• Tunnel: 129,468,592.47 € (VAT not included),• Tunnel and road: € 146,580,403.07 (VAT not included)Year(s)2020 - 2021Services• Project management and coordination (iC group),• BIM models for architecture and documentation for tunnel pipes, power plant, and fire station. • Project management and coordination (iC group),• BIM models of architecture and documentation for tunnel pipes, power plant, and fire station. • Preparation of project documentation for the primary substructure of the tunnel• BIM models and project documentation for the inner lining of the tunnel• BIM models and project documentation for tunnel portals, ventilation station, power plant, control center, and retaining walls• Preparation of formwork and reinforcement plans for NOO tunnels, portals, ventilation station, power plant, control center, and retaining walls• Inventories for architectural and civil engineering work based on BIM models and project documentation• Phases: FS – Feasibility study PI – Final Project Idea, DD - Detailed Design.InvestorThe Republic of Albania, Ministry of Infrastructure and Energy
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