SELI OVERSEAS S.p.A. Via silvio D’Amico, 53 00145 Roma Tel. +39 06 81168500 www.selioverseas.com Project name: COCIV Val Lemme Tunnel Client: CO.CI.V. (Consorzio Collegamenti Integrati Veloci) Contract: Realizzazione delle opere civili di linea e relative opere connesse da pk 16+275 a pk 19+700 (Lotto Val Lemme) Contract amount: 216.837.722,94 EUR (lavori) 4.936.357,43 EUR ( sicurezza) Start: November 2017 Completion: December 2020 Works performed by: SELI Overseas S.p.A. MAJOR WORKS • Excavation of the Cornering Camber with a total length of 180.00 meters in traditional, digging di- ameter of 16.29 m, finished internal diameter of 12.63 m. Coating of the AC tunnel cast in place. • Excavation tunnel evacuation with a total length of 1,500.00 meters in traditional, excavation diameter of 7.82 m, finished internal diameter of 6.32 m. Coating of the AC tunnel cast in place. • Excavation of the Twins Metro Tunnel of total length of 6,849.00 meters in traditional, exca- vation diameter of 10.18 m, finished internal diameter of 7.50 m. Coating of the AC tunnel cast in place. • Excavation of by-pass tunnels and niches in traditional method. CONSTRUCTION METHOD AND EQUIPMENT Tunnel Excavation Traditional method: • Consolidation of the cluster with injected VTR tubes • Excavation in traditional with Hammer, diameter 10,18 m • Pre-coating with Metal Covers and Spritz Beton Reinforced Fibro List of the main machinery-equipment: • HITACHI ZX 470-3 EXCAVATOR with HAMMER ATLAS COPCO HB 3000 DUST S2 / 137012 ATEX • HITACHI ZX 350-3 EXCAVATOR with HAMMER COCIV Val Lemme Tunnel