UUT 23 Existing Ulriken tunnel
March 2021 – January 2022
Katrine Sælensminde Erstad – Project Manager Tunnel
Eksisterende Ulriken tunnel
Existing Ulriken tunnel
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Åpnet i 1964
7,8 km lang
Tverrsnitt på 25-30 m2
Opened in 1964
Length of 7,8 km
Cross sections of 25-30 m2
Eksisterende Ulriken tunnel
Existing Ulriken tunnel
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Flekkvis udekket PE-skumplater som
vann- og frostsikring
Patches of uncovered PE-foam as water
and frost proofing
Eksisterende Ulriken tunnel
• Enkeltspor
• KL-anlegg
• Dreneringssystem
• Kabeltrasé
• Ledebelysning
• Diverse installasjoner signal og tele
Existing Ulriken tunnel
• Single track
• Catenary system
• Drainage system
• Cable ducts
• Emergency lighting
• Various installations for signalling and
telecommunications
Scope of work
Arbeidsomfang
• Tunneldriving: gjennomslag for to
diagonaltunneler mellom eksisterende og
ny tunnel i Arna
Scope of work
• Tunneling: Breakthrough for two diagonal
tunnels between existing and new tunnel
in Arna
Arbeidsomfang
Scope of work
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Tunneldriving gjennomslag for
adkomsttunnel i Fløen (kun til
eksisterende tunnel)
Tunneling: Breakthrough for access tunnel
at Fløen (only to existing tunnel)
Arbeidsomfang
Scope of work
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Strossing for viftepar i heng i Fløen
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Back-ripping (enlargement of profile) for
fans in the tunnel roof in Fløen
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Rive eksisterende PE-skumplater gjennom
hele tunnelen
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Dismanteling of existing PE-foam
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Back-ripping for new water and frost
proofing at different locations through the
tunnel
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Punktvis strossing for vann- og frostsikring
gjennom hele tunnelen
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Erstatte eksisterende PE-skumplater og
brannsikre med sprøytebetong
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Replacement of existing PE-foam,
fireproofing with shotcrete
Kompletterende arbeid ved tverrpassasjer
(sprenging/pigging/kabelkanaler)
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Complimentary work in cross passages
(blasting/road heading/cable ducts)
Montere bolter for oppheng av skilt og
vifter
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Installation of bolts for signs and fans
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Maintenance/adjustment of existing
drainage system, emergency lighting and
cable ducts
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Ivareta/tilpasse eksisterende drenering,
ledelys og kabelkanaler
Interfaces with other contracts
UUT 21 Nye Ulriken tunnel
• Rive eksisterende bro og etablere ny bro i
Fløen
• Etablere ny portal i Fløen
UUT 21 New Ulriken tunnel
• Dismantling of existing bridge and
construction of new bridge in Fløen
• Construction of new portal in Fløen
UUT 31 Jernbaneteknikk
UUT 31 Railway engineering
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Fjerne skinner og KL i Arna (1 km)
Dismantling of tracks and catenary system
in Arna (1 km)
UUT 25 Arna stasjon
UUT 25 Arna station
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Etablere ny portal i Arna
Construction of new portal in Arna
Timetable
Rigging areas
Arna
Fløen
Nøkkeltall
Key figures
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Riving av eksisterende PE-skum 2 400 m2
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Dismantling of existing PE-foam 2 400 m2
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Sprenging 27 000 m3
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Blasting 27 000 m3
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Ny vann- og frostsikring 18 000 m2
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New water and frost proofing 18 000 m2