Investigating behind the lining of the Tunnel of Eupalinus in Samos (Greece) using ERT and GPR

摘要

The 2.5-km-long Eupalinian Aqueduct in the island of Samos, Greece, comprises the most impressive sample of ancient Greek engineering surviving almost intact. The main construction is a tunnel 1036 m long and almost 1.8 m wide excavated from both ends into mainly the massif limestone. In some parts of the overall length of about 240 m, the tunnel is dressed by lining of archaic and Roman age. This is of remarkable quality, and presumably, it protected the parts of the tunnel that were affected by subsidence and cave-ins. At some particular locations, it suffers deformations and other failures.