Designer
Ingenieurgemeinschaft DL-2010
Lombardi SA, CH-6648 Minusio
Construction Period
2007 – 2010
Contractor
Consorzio Marti Lugano
Consortium Partners
Marti Tunnelbau AG, CH-3302 Moosseedorf
Mancini & Marti SA, CH-6500 Bellinzona
Lead Company – Technical and Commercial Lead
Marti Tunnelbau AG, CH-3302 Moosseedorf
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Scope of the Works
Lot 0211-G4Bidirectional motorway tunnel, part of the luganese beltway system:- Excavation of a tunnel of a length of 2'350 m and a section of 73 - 86 m2- Ventilation shaft of a height of 98 m and a diameter of 4.00 m including an access gallery and a ventilation cavern- Reinforcement of the section where the tunnel will cross the Ceneri railroad tunnel (NRLA)- 4 enlargements for security stop (every 600 m) of a length of 41 m and a section of 156 m2 each
Activities
- Conventional rock excavation using a 3 arms jumbo; depending of the rock quality and other environmental reasons, excavation of the full or partial section.
- The rock cover to the existing railroad Milano-Zürich being only 7 meters, the first phase was executed under the protection of a grouted pipe poling umbrella.
- Rock support by means of shotcrete with fibers, rock bolts and/or steel sets.
- Internal lining: membrane insulation and cast in place concrete.
- Inserted ceiling for the final ventilation system and cast in place concrete for portal work
Geology
Gneiss and chlorite schist with graphite layer
Contact
Marti AS
Karenslyst allé 4b
0278 Oslo
Tel. +47 23 12 06 55
Fax +47 23 12 05 10
info@marti-norge.no
