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Eupalinos Tunnel - First Tunnel to be Excavated Simultaneously from Both Ends in the 6th Century B.C.

Vlachopoulos, Nicholas

In the proceedings of: GeoCalgary 2022: 75th Canadian Geotechnical Conference

Session: T2

ABSTRACT: The Eupalinos Tunnel is considered one of the most significant engineering achievements of antiquity as it involved simultaneous excavations from both ends of the tunnel. The tunnel was constructed between 550 and 540 B.C. on the Greek island of Samos and had an overall length of 1036 m. The tunnel measured approximately 1.8 m by 1.8 m with a 4 m deep, parallel trench system that contained a clay water pipe as part of the aqueduct system. This paper summarizes the instrumentation, challenges and techniques that were utilized in order to achieve such an engineering feat. Also included is the historical background, an assessment of the main geological features associated with the tunnel construction, the various tunnel design types and the relevant tunnel construction techniques that were utilized in order for the tunnels to meet within the intended tunnel alignment (within 1.8% accuracy).


RÉSUMÉ: Le tunnel d'Eupalinos est considéré comme l'une des réalisations techniques les plus importantes de l'Antiquité, car il impliquait des fouilles simultanées aux deux extrémités du tunnel. Le tunnel a été construit entre 550 et 540 av. sur l'île grecque de Samos et avait une longueur totale de 1036 m. Le tunnel mesurait environ 1,8 m sur 1,8 m avec un système de tranchées parallèles de 4 m de profondeur qui contenait une conduite d'eau en argile faisant partie du système d'aqueduc. Cet article résume l'instrumentation, les défis et les techniques qui ont été utilisés pour réaliser un tel exploit d'ingénierie. Sont également inclus le contexte historique, une évaluation des principales caractéristiques géologiques associées à la construction du tunnel, les différents types de conception de tunnel et les techniques de construction de tunnel pertinentes qui ont été utilisées pour que les tunnels se rejoignent dans l'alignement prévu du tunnel (à moins de 1,8 % précision).


Please include this code when submitting a data update: GEO2022_163

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Cite this article:
Vlachopoulos, Nicholas (2022) Eupalinos Tunnel - First Tunnel to be Excavated Simultaneously from Both Ends in the 6th Century B.C. in GEO2022. Ottawa, Ontario: Canadian Geotechnical Society.

@article{Vlachopoulos_GEO2022_163, author = Nicholas Vlachopoulos,
title = Eupalinos Tunnel - First Tunnel to be Excavated Simultaneously from Both Ends in the 6th Century B.C. ,
year = 2022
}