Technical specifications

Project description

  • Length and Cross-section: power descent,
    inclined shaft approx. 400 m
  • Gradient less than 31%
  • Surge chamber plumb vertical shaft
  • Excavation and securing works, T=100m, Ø 15 m
  • Concrete works vertical shaft, inner Ø 14 m
  • Return Drive (in opposite direction) approx. 1,000 m
  • Concrete works return drive inner lining bottom and roof Access tunnel, caverns

Construction method
Drill and blast method and tunnel excavator

Geology
Dark limestone phyllite

General data

Project
Gemeinschaftskraftwerk Inn (GKI) Prutz/Ried

Client
Tiroler Wasserkraft (Tirolean Hydropower)/
EKW-OEE/Verbund

Contractor
Wayss & Freytag Ingenieurbau AG
Southern Division in a joint venture (GKI Prutz/Ried JV)

Construction period
2014 to 2018

Construction costs
€ 56 million

Usage
Water/ Sewerage tunnel
Type
Supply tunnel
Length
400 m + approx. 1,000 m
Construction Method
Drill and blast method
Related Projects
Hengsberg Tunnel
Hengsberg Tunnel
Austria

A milestone for the Koralm railway line from Graz to Klagenfurt: the double-track tunnel with a length of 1.7 km forms the centrepiece of this construction section.

Read more
Stuttgart Underground Line, U6 Fasanenhof
Stuttgart Underground Line, U6 Fasanenhof
Germany

The U6 underground line connects the district of Möhringen with the industrial area “Am Schelmenwasen”. The double-track underground railway tunnel crosses below the industrial area „Fasanenhof”.

Read more
Roppen Tunnel JV
Roppen Tunnel JV
Austria

The Roppen tunnel between Innsbruck and Landeck in Austria was made safer by the construction of the second tube. The 5,069 meter long tunnel was driven conventionally.

Read more

Cookies Policy

Our website uses cookies to improve your experience. Certain cookies can contain personal information. We deactivate Cookies, unless you allow Cooky usage.
Additional information

Allow Cookies
Do not allow cookies
Cookies Settings