FE-Analyses Tunnel Maliakos, Greece
As part of the Motorway connecting Patras and Athens to Thessaloniki, the massif of Mount Olympus is crossed with three twin-tube tunnels (section Maliakos – Kleidi). The tunnels with lengths of 2.8 to 5.8 km and a cross section area of up to 150 m² (two regular lanes + emergency lane) are excavated using New Austrian Tunnelling Method (NATM).
Ground investigations revealed strongly alternating rock conditions consisting of a succession of phyllites and limestones in various conditions and pronounced fault zones. Taking into account high overburden stresses, rock conditions are a challenge for design and construction work.
ILF Consulting Engineers, Rum bei Innsbruck