ASFINAG, A02 - tunnel inspection / refurbishment concepts

Description of projectt

A02 Sued Autobahn
Tunnel chain “Pack” – tunnel Assingberg, Herzogberg, Mitterberg and Kalcherkogel
Structure inspection 2021/2022 (main tunnel survey) and refurbishment concepts

• Assingberg tunnel
  • Overall length north tube approx. 250 m – south tube approx. 248.50 m
  • Miner’s tunnel north tube (lightly reinforced inner shell) approx. 236 m – south tube approx. 216 m
  • Open cut tunnelling north tube: east 7.5 m, west 7 m – south tube: east 22 m, west 10.5 m
  • Soundproofing panels north tube: west approx. 31 mNo escape and emergency routes in the tunnel
  • No breakdown lay-bys
  • No fire niches and no emergency call niches in the tunnel
• Herzogenberg tunnel Overall length north tube approx. 2,007 m – south tube approx. 1,968 m
  • Mainly mining method
  • Open cut tunnelling for both tubes in the portal sections
  • Escape and emergency routes (4 crosscuts)  
  • breakdown lay-by per tunnel tube
• Mitterberg tunnel Overall length north tunnel tube approx. 1,134 m – south tube approx. 1,142 m
  • Miner’s tunnel north tube approx. 1,063 m – south tube approx. 1,055 m
  • Open cut tunnelling north tube: east 31 m, west 40 m – south tube: east 46 m, west 42 m
  • Escape and emergency route (3 crosscuts)
  • No breakdown lay-by
  • Niches (north and south tube each 11 fire niches, 3 emergency call niches and 2 emergency call points)
• Kalcherkogel tunnel
  • Overall length north tunnel tube approx. 1,967 m – south tube approx. 1,993 m
  • Miner’s tunnel north tube approx. 1,911 m – south tube approx. 1,931 m
  • Open cut tunnelling north tube: east 24 m, west 32 m – south tube: east 28 m, west 34 m
  • Escape and emergency route (6 crosscuts)
  • 1 breakdown lay-by per tunnel tube
  • Niches (north and south tube each 17 fire niches, 7 emergency call niches and 1 emergency call point)

Description of tasks

• In-depth survey of the tunnel constructions Assingberg, Mitterberg and Kalcherkogel
• Design of inspection reports according to RVS 13.03.11 (cut-and-cover method) and RVS 13.03.31 (road tunnels) with determination of damage classes
• Inclusion of report in 3-D-tunnel scan of the driving area provided by the client
• Analysis of sewer’s video survey records
• Elaboration of damage plans for premises, crosscuts and cable collectors
• Elaboration of refurbishment concepts for the above-mentioned tunnel sites
• Elaboration of a photographic documentation

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