Employer
Bau-, Verkehrs- und Energiedirektion des Kantons Bern, CH-3011 Bern
Designer
Tunnel SEI; Ingénieurs-conseils SA, CH-2500 Biel
Trasseebau; ATB SA, CH-2740 Moutier
Time of Completion
11.2006 – 05.2012
Execution of the Work
Groupement Tunnel de Graitery
Consortium Partners
Marti Tunnel AG, CH-3302 Moosseedorf
Parietti & Gindrat SA, CH-2900 Porrentruy
Marti Travaux Spéciaux SA, CH-2087 Cornaux
Pro Routes SA, CH-2710 Tavannes
Lead Company – Technical and Commercial Lead
Marti Tunnel AG, CH-3302 Moosseedorf
Lead Company – Technical and Commercial Lead
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Scope of the Works
National Highway A16, Moutier-Court,
Tunnel of Graitery
- Double track road tunnel
- Tunnel length: 2'462 m
- Safety tunnel parallel to the main tunnel
- Ventilation buildings at the 2 portals
- Hard rock excavation with a diameter: 9 m
Activities
- Excavation and stabilisation of the portal area with
anchors, nails and shotcrete- Driving of the tunnel in the portal area with pipescreen, placing of steelsupport and shotcrete
- Drill & Blast in the limestone sections
- Roadheader driving in the marl sections
- Tunnel lining with sole vault and suspended ceiling
- Enlargement of the safety gallery
- Construction of ventilation stations and cut and cover
sections in the precut North and South
Contact
Marti Tunnel AG
Seedorffeldstrasse 21
CH-3302 Moosseedorf
Tel. +41 31 388 75 10
tunnel@martiag.ch
