Employer
Ritom SA,
c/o FFS SA
Infrastruttura, Energia, Grandi progetti Energia,
Industriestrasse 1
CH-3052 Zollikofen
Designer
Consorzio Ritom Ticino (CRT),
c/o IM Maggia Engineering SA,
Via Franscini 5,
CH-6601 Lugano
Site Supervisor
Consorzio Ingegneri CORI,
c/o Renzo Tarchini Cantieri & Contratti SA,
Via Montarina 19,
CH-6900 Lugano
Time of Completion
11.2018 – 05.2022
Execution of the Work
Consorzio Marti-Ferrari Ritom
Consortium Partners
Marti Tunnel AG, CH-3302 Moosseedorf
Mancini & Marti SA, CH-6501 Bellinzona
Ennio Ferrari SA, CH-6527 Lodrino
Lead Company – Technical and Commercial Lead
Marti Tunnel AG, CH-3302 Moosseedorf
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Scope of the Works
Renewal Ritom hydroelectric power station
- Pressure gallery, total length = 2'300 m
- Power plant building Ritom
- Equalizing basin 100'000 m³
Activities
Installation site Piora (1847 m):
- Drill and blast access shaft T = 35 m, 82 m²
- Drill and blast valve chamber 3‘200 m³
- Drill and blast upper pressure
gallery L = 142 m, 12 m²
- New water intake Lake Ritom
Installation site Piotta (1001 m):
- Drill and blast lower pressure
gallery L = 575 m, 20 m²
- Drill and blast assembly cavern TBM
- Excavation of inclined shaft with
Gripper-TBM Ø = 3.23 m
- Lower inclined shaft 42% L = 880 m
- Upper inclined shaft 90% L = 633 m
- Drill and blast, 3 distribution
galleries L = 54 + 46 + 29 m, 7 m²
- Power plant building Ritom
- Equalizing basin 100'000 m³
Contact
Marti Tunnel AG
Seedorffeldstrasse 21
CH-3302 Moosseedorf
Tel. +41 31 388 75 10
tunnel@martiag.ch
