Railway Line Corinth – Patra
Rehabilitation of railway line Corinth – Patra, section km 75 – km 90, Greece
Technical Details
The project involves the rehabilitation of the existing railway line of a total length of 15 km, from Corinth to Patra, including service road network, with the aim to upgrade it to double – track high-speed railway line. Along the line, there is the “Aigion“ Tunnel 3.5 km long, 4 railway bridges with total length 363 m, 4 overpasses, 16 underpasses and 8 stations.
Aigion tunnel has a total length of 3.252 m and 3 escape tunnels, spaced approx. every 1.000 m (total length approx. 800 m) and access roads totaling 105 m. The natural ground elevation along the tunnel alignment ranges from +43m to +44m at the portal areas, reaching approx. +114m at the point of maximum overburden. Excavation was carried out in accordance with the New Austrian Tunneling Method (ΝΑΤΜ).
Services Provided
The scope of services includes the Infrastructure and Substructure design (Railway, Road, Structural Design), in Conceptual Preliminary and Final stage including Geotechnical Surveys and Design.
OBERMEYER, having elaborated the geotechnical and structural design of Aigion Tunnel (Excavation and temporary support, final lining, portals, C&C etc.), acted as Technical Supervisor during the Aigion Tunnel’s construction. OBERMEYER’s scope of services included specialized engineering consulting services and technical support during construction, approval of materials, quality control, progress and financial monitoring.
