Employer
République et canton de Genève; DETA / DGGC,
CH-1213 Petit-Lancy
Designer
Groupement NATIF, p/a T-Ingénierie;CH-1211 Genève
Time of Completion
09.2017 - 07.2022
Execution of the Work
Groupement Tunnel Nations
Consortium Partners
Marti Construction SA, CH-1217 Meyrin
Marti Tunnel AG, CH-3302 Moosseedorf
Lead Company
Marti Construction SA, CH-1217 Meyrin
Technical and Commercial Lead
Marti Tunnel AG, CH-3302 Moosseedorf
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Scope of the Works
Underground motorway junction joining the airport with
the Palais des Nations.
Activities
- Tunnel L = 490 m
- Reduction of the groundwater table by
filter wells over the entire length of the section- Excavation in soft ground in divided section
(foot galleries, cap, stross and invert)- Umbrella vault and front anchors as a
stabilization measure- Hangers and sprayed concrete as support
- Waterproofing and inner ring in reinforced
concrete- Excavation 50'000 m³
- Pipe umbrella 30'000 m
- Shotcrete 11'500 m³
- Rock support steel 900 t
- Face bolting 45'000 m
- Concrete inner lining 20'000 m³
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- Cut and Cover trench L = 380 m
- Earthworks 150'000 m³
- Backfilling 30'000 m³
- Shotcrete and bolts 2'000 m²
- Bored piles 1'000 m
- Concrete 21'500 m³
- Reinforcement 3'000 t
- Roadworks 900 m
Geology
- Sédiments d‘argiles et de sable
- Couches 7a et 9a (Classification genevoise)
Contact
Marti Tunnel AG
Seedorffeldstrasse 21
CH-3302 Moosseedorf
Tel. +41 31 388 75 10
tunnel@martiag.ch
