SO 01- Ovčiarsko – exploration gallery for Tunnel
Slovenská správa ciest, Bratislava
February 1997 – May 1998
Excavation works were executed by drilling works, supporting was executed by shotcrete, steel mesh reinforcement, TH reinforcement and SN resp. Swelex bolts. Final works of exploration gallery represented drainage of water from primary lining to main gallery drainage system and tanks in tunnel portals and construction of concrete layer along the whole length of exploration gallery.
- rock excavating and exploration gallery support, cross-section profile area of 16 m2, length of 2386.1 m
- final works exploration gallery