Toto Holding

Tag: Tunnels

Allocco Tunnel

Length: Northbound barrel (55.69+1,655.07); Southbound barrel (72.12+1693.33) Excavation section: 155 m³    Digging radius: 7.80 m Coating thickness: 60 cm Consolidation: front n. 15÷50 VTR L=15m – contour n. 35÷55 VTR high pressure injected L=15m Driveways and pedestrians by-passes: n. 4 pedestrians + n. 1 driveway The Allocco tunnel (double-barrel tunnel) measures a total length of 3,480 m, divided into the

Read More »

Carestia Tunnel

A24 Strada dei Parchi Length: 830 m Excavation section: 156 m³ Digging radius: 7.70 Coating thickness: 90 cm Consolidation: front no. 30 VTR L = 18 m – contour no. 55 Reinforced micro-piles L = 15 m Vehicle and/or pedestrian by-passes: n. 2 pedestrians, L = 33 m Technological installations: LED handrail on both sides The Carestia tunnel (single barrel) is

Read More »