Technical specifications

Scope of work

  • 3 shafts, depth: 100 m, max. diameter: 25 m;
  • 2 caverns with a volume of 70,000 m³ and 100,000 m³ respectively
  • Various smaller tunnels

Construction method

  • Sprayed concrete lining method with excavator and chisel,
  • In-situ concrete inner lining

Geology
Molasse

General data

Project
Complete remodelling of the particle accelerator

Client
CERN – European Organization for Nuclear Research

Contractor
Wayss & Freytag Ingenieurbau AG
in a joint venture

Construction period
1998 to 2003

Construction costs
€ 70 million

Utilisation
Infrastructure
Type
Railway tunnel, single-track
Length
3.6 km
Construction Method
Sprayed concrete lining (SCL) method with excavator and chisel
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