Technical specifications

Project description

  • Double-lane motorway tunnel Lot 5 „Sperring“ Tunnel
    L=2,894 m, enlargement to full crosssection,
    face/floor, A = 30– 60 m²,
    10 cross-passages
    2 breakdown bays
  • Falkenstein tunnel L=752 m,
    A = 70– 80 m² 2 cross-passages,
  • Lot 4 Klauser tunnel
    2,166 m of which 1,900m to be enlarged to full cross-section
    face/floor, A = 30– 60 m²
    L=160 m complete excavation A = 75– 85 m²,
    8 cross-passages, 2 breakdown bays,
  • Traunfried Tunnel
    L=462m, A = 75– 85 m²
  • 2 service buildings and water tank for firefighting purposes

Construction method
Drill and blast method and tunnel excavator

Geology 

  • Firm to slightly weathered main dolomite
  • tectonically strongly stressed limestone with all grades of weathering
  • slightly weathered to bedded Wetterstein dolomite
  • loose soil layers (unconsolidated colluvium)

General data

General Data
A9 Phyrn Motorway full extension of 2nd tube
Lot 5 “Sperring” and „Falkenstein“ Tunnel
Lot 4 „Klauser“ and „Traunfried“ Tunnel

Client 
Asfinag Baumanagement GmbH

Contractor
Wayss & Freytag Ingenieurbau AG
as commercial leader of a Joint venture

Construction period 
2014 to 2017

Construction costs
€ 66.28 m

Usage
Infrastructure
Tyoe
Motorway tunnel, two-lane
Length
6,274 m
Construction Method
Drill and blast method in combination with tunnel excavator

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