Exploration Tunnel Feldkirch City Tunnel (AT)
Exploration Tunnel Feldkirch City Tunnel (AT) Projects Description The construction of the 1212-meter-long exploration tunnel Tisis, as part of the Feldkirch City Tunnel project in Austria, was initiated by the Allianz EKS Tisis Jägerbau, Strabag, State of Vorarlberg. To fulfil its safety function after excavation and also as part of the permanent inner shell, macro-fibre…










