Employer
Federal Roads Office FEDRO, CH-8404 Winterthur
Designer
Pöyry Infra AG, CH-8005 Zürich
Time of Completion
05.2011 – 06.2013
Execution of the Work
ARGE Sisto Milchbuck
Consortium Partners
Marti Tunnel AG, CH-3302 Moosseedorf
Marti AG, Bauunternehmung, CH-8050 Zurich
Lead Company – Technical and Commercial Lead
Marti Tunnel AG, CH-3302 Moosseedorf
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Scope of the Works
Urban tunnelling works for a safety gallery of the Milchbuck highway tunnel in Zurich, 1‘380 m and underground water retention basin.
Activities
- Excavation in unconsolidated rock with jetting and pipe umbrella construction system (380 m)
- TBM excavation Ø = 4.15 m (1’000 m)
- Waterproofing, shotcrete concrete lining
- Water retention basin
Geology
Soft ground excavation:
Mainly moraine and locally upper freshwater molasses
TBM excavation:
Horizontal layer of upper freshwater molasses composed of sandstone, silt and clay material
Contact
Marti Tunnel AG
Seedorffeldstrasse 21
CH-3302 Moosseedorf
Tel. +41 31 388 75 10
tunnel@martiag.ch