Employer
BLS AlpTransit AG, CH-3601 Thun
Time of Completion
2000 – 2005
Contract Sum
CHF 500 Mio.
Designer
Gruppo d’ingegneri IGWS
Execution of the Work
ARGE MaTrans
Consortium Partners
Marti Tunnelbau AG, CH-3302 Moosseedorf
Walter Gruppe, DE-86150 Augsburg
Porr AG, AT-1100 Wien
Balfour Beatty Ltd., UK-London
Lead Company
Marti Tunnelbau AG, CH-3302 Moosseedorf
Commercial Lead
Porr AG, AT-1100 Wien
More…
Less…
Scope of the Works
Base tunnel Steg (railway tunnel NEAT) / Acces tunnel of Lötschberg
Principal advances
- Acces tunnel Steg and west tunnel: L= 8’925 m with TBM
- Base tunnel west Raron – Lötschen: L= 4’600 m with drill and blase
- Base tunnel east Raron – Ferden: L= 10’005 m with TBM
Supplementary constructions
- Cross cuts: 20 pces, A= 18 m2
- Connecting caverns Lötschen: L= 296 m, V=21'700 m3, A= 64 - 75 m2
- Track changing Lötschen West: L= 199 m + 82 m
- Operating central station Lötschen West: L= 50 m, V= 12'000 m3
- Gates, walls retaining, bridge
Activities
- TBM drive: Ø= 9.43 m:
- Rock stabilisation with anchors, nets, shotcrete, support archs
- Pipe screen drilling
L= 35 m, A= 92 - 104 m2- Blast driving: Rock stabilisation wich ancors, nets, shotcrete, support archs
- Concrete lining in shotcrete manufactured on place
Contact
Marti AS
Karenslyst allé 4b
0278 Oslo
Tel. +47 23 12 06 55
Fax +47 23 12 05 10
info@marti-norge.no
