Norwegian rail development: The Follo Line Project constructing the longest railway tunnel to date in the Nordic countries Project Director Per ...
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Norwegian rail development: The Follo Line Project constructing the longest railway tunnel to date in the Nordic countries Project Director Per David Borenstein Brussels 19 November 2018
Lillehammer
Moelv
InterCity development 2018/2019 Brumunddal
Hamar
Stange
Tangen
• Planning
• Completed sections
Eidsvoll
InterCity project background Oslo Lufthavn
Hønefoss
• Population growth in the eastern part of
Sundvollen
Norway
Lillestrøm
• Increased demand for rail transport and Sandvika Oslo S
more congestion in urban areas Asker
Lysaker
• Good transport solutions needed to Drammen
Ski
help organize a well functioning
housing & job market Sande
• InterCity development will provide Holmestrand
general development in the region Horten
Moss
Rygge
Råde
Sarpsborg
Tønsberg
Skien Stokke Fredrikstad
Torp
Porsgrunn Sandefjord Halden
Larvik
22 km
Åsland rig area
Connection to Oslo D&B / D&S TBM: 18,5 km Open section and
Central station Ski station
20 km tunnel
The Follo Line Project – production from five rig areas
Two large EPC contracts and several smaller contracts
Oslo
11 min
Ski
The Follo Line: High speed line Oslo-Ski. 70 % of the project is executed (November 2018)
Venjar-Langset
Dovrebanen – en del av
Section
InterCityOslo
Central Station
• Kortere reisetid
• 600 m tunnel under Oslo
• Økt kapasitet
Medieval Park for gods- og
persontog
• Archaeological
excavations
• Challenging ground 2023
Planlagt åpning
conditions
• Traffic to be
considered to and
from the busy central
rail station
Constructing a 600 meter culvert/tunnel to be extended under Oslo Medieval Park
Installation of railway tunnels with use of hydraulic equipment
Constructions and traffic in proximity of Oslo Central Station
Section tunnels
by drill & blast
• Complicated
crossings
• Sensitive
infrastructure
• Includes drill & split
with no explosives in
sensitive areas
• Two tubes for the
Follo Line and one
for the realigned
Østfold Line (local
trains)
Complicated crossings and restrictions in the northern
part of the tunnel section
Complicated crossings and restrictions in the northern part of the tunnel sectionMountain hall (Tresporshallen) in the Ekeberg Hill
Drill & Split method
Drill & split in sections with sensitive infrastructure
Venjar-Langset
Section tunnel
production by
four TBMs – en del av
Dovrebanen
InterCity
• Compact and
•efficient
Kortere reisetid
rig area
• •Multipel
Økt kapasitet for gods- og
persontog
simultaneous
operations
• One rig area instead
Planlagt
of severalåpning
access 2023
points
• Segment factories
• Most of the exavated
material reused as
construction ground
for a new residential
areaOslofjorden Ekebergåsen
Holmlia
Assembly caverns
north and south
Bjørndal
E6
Atkomsttunneler
Åsland rig area
E6
Åsland rig area between Oslo and Ski – «the heart» of the tunnel productionÅsland rigg Fire tunnelboremaskiner skal bore 18,5 km av tunnelen fra et stort riggområde på Åsland ved E6 Fire tunnelboremaskiner skal bore 18,5 km September 2018: Double breakthrough celebration for the TBMs working towards Oslo
Åsland rigg Fire tunnelboremaskiner skal bore 18,5 km av tunnelen fra et stort riggområde på Åsland ved E6 Fire tunnelboremaskiner skal bore 18,5 km September 2018: Double TBM breakthrough north towards Oslo city center
From Germany: Four tailormade tunnel boring machines constructed for extreme hard rock
At Åsland rig area 141 000 concrete elements are produced and installed in the tunnel
A TBM is like a tunnel factory installing segments for a water proof tunnel
Section Ski • A new, modern rail station with six tracks and three platforms and facilities • An open section from the long tunnel • Challenging ground conditions • Two tracks scheduled for completion Autumn 2019
Oslo
Ski
Entering Ski traffic hub: Complicated constructions with realignment of the existing rail lineThe center of Ski: Constructions 24/7
24 Excavating the tunnel exit - and final breakthrough for the TBMs early spring 2019
2012 – before constructions 2021 – after constructions
• Currently Norway´s largest transport project • 22 km new double track line from Norway´s capital to the public transport center of Ski • Includes extensive works at Oslo Central Station, realignment of tracks, construction of a new station at Ski • Station and between the tunnel and the new Ski Station • Comprise the construction of around 64 km new railway tracks • Comprise a 20 km long tunnel; the longest rail tunnel in the Nordic countries • Excavated mainly with tunnel boring machines (TBM), but also by drill/blast and drill & split • The first long railway tunnel in Norway with separate twin tunnels (each 18,5 km long) • Will enable a 50 % reduction in journey time Oslo-Ski/ • Designed for speed up to 250 km/h • Part of the Norwegian InterCity rail development project
Thank you Bane NOR The state-owned Norwegian company responsible for the national railway infrastructure Management and maintenance Construction and renewal Operation and traffic control
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