Employer
Public work management of the canton of Zurich,
CH-8001 Zürich
Designer
Grouping of engineers N4.1.6, CH-6460 Uri
Time of Completion
2003 - 2008
Contract Sum
CHF 235 Mio.
Execution of the Work
ARGE IBT Islisbergtunnel
Consortium Partners
Marti Tunnel AG, CH-3302 Moosseedorf
Ed. Züblin, DE-70567 Stuttgart
Marti AG, Bauunternehmung, CH-8050 Zürich
Lead Company and Technical Lead
Marti Tunnel AG, CH-3302 Moosseedorf
Commercial Lead
Marti AG, Bauunternehmung, CH-8050 Zürich
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Scope of the Works
Section Uetliberg West – Knonau
- 2 tunnels of 4'950 m
- Excavation cross section A= 110 m²
- 3 ventilation chambers north, south and central
- 15 pces cross cuts, of that 5 driveable
Activities
- TBM-drive Ø= 11.86 m with concrete segmental lining
- Inner lining with PE-waterproofing membrane, service duct, concrete internal ring and suspended ceiling
- Jetting drive in soft ground section at north and south portal
Geology
- Upper Zürich fresh water molasses
Contact
Marti Tunnel AG
Seedorffeldstrasse 21
CH-3302 Moosseedorf
Tel. +41 31 388 75 10
tunnel@martiag.ch