The project involves the extension of the current Sofia Metro, Line III Lot 4 from Shipka Street and Slatina District up to Tsarigradsko Street with a total length of 5.4 km TBM work, the design, and construction of the tunnel.
- Location Sofia / BULGARIA
- Client Metropoliten “EAD”
- Cross Section TBM - Circular
- Excavation Diameter TBM - 9,39 m
- Length of the Tunnels 4.440m TBM
- Earthworks 306.360 m³ - TBM Excavation
55.5200 m³ - Shaft Excavation
- Concrete 105.000 m³
- Segment 3.103 Rings (6+1), 210.721 Segments
- Shoring Works 3.500 m² - Diaphragm Wall
13.600 m³ - Cement Grouting
33.750 m - Bored Pile
4.73600 m - Anchorage
