Technical specifications

Scope of works:

Double track railway tunnel

  • parallel service tunnel
  • underground station
  • caverns and access tunnel

Construction method:

  • Drill and blast: Length 5.60 km with an excavated volume of approx. 655.000 m
  • Cross-sections: 80 m² (access tunnels)
    130 m² (standard cross-section of double-track tunnel)
    up to 600 m² (widened tunnel in the area of Korsvägen Station East)

Open construction:

  • Korsvägen Station East excavation: 140 m long, up to 28 m deep,
    open construction
  • Liseberg excavation: 260 m long, up to 22 m deep, top-down method
    Almedal trough structure
  • open construction section: 620 m long
    Civil works including several temporary bridges and a highway access ramp

Geology:

  • Drill and blast: granite, granodiorite, gneiss
  • Open construction/top-down method: topsoil, sand, slit, (Lera-)clay,
    quick clay, moraine

 

General data

Project
West Link Project, Korsvägen Section, Gothenburg, Sweden
Double track railway tunnel

Client
Trafikverket (Schwedish Transportation Authority)

Contractor
Wayss & Freytag Ingenieurbau AG
in a joint venture

Construction period
2018 to 2026

Net construction costs
SEK 3.8 billion (approx. € 385 million)

 

Utilisation
Infractructure
Type
Railway tunnel, double-track
Length
5.6 km
Construction Method
Drill and blast method, open construction/ top-down method with civil enginering works

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