Technical specifications

Lot 1: Driving of access tunnel

  • L approx. 80 m and start cavern
  • V approx. 1,000 m³
  • Construction of 2 pressure partitions(walls)
  • Extension of access tunnel incl. tunnel portal
  • Infrastructure provisions

Construction method

  • Drill and blast
  • SCL inner lining

Geology

  • Mainly dolomite

Lot 2: driving of target shaft

  • D = 7 m
  • T approx. 40 m
  • Target cavern L approx. 15 m

Construction method 

  • Drill and blast
  • SCL inner lining

Geology

  • Mainly dolomite

Lot 3: TBM driven seepage water tunnel

  • D = 3.0 m
  • L approx. 160 m

Construction method

  • Pipe jacking with reinforced concrete pipes
  • L = 2.8 m
  • Installation of two soft gel seals respectively in the transition area between rock and dam fill

General data

Project
Sylvenstein Dam BA (construction lot) 3
construction of a new seepage water tunnel
Lots 1-3

Client
Wasserwirtschaftsamt (water authority) Weilheim for the Free State of Bavaria

Contractor
Wayss & Freytag Ingenieurbau AG

Construction period
March 2013 to July 2014

Construction costs
approx. € 5.6 million

 

 

 

Utilisation
Water/Sewerage
Type
Seepage water tunnel
Length
160 m
Construction Method
Pipe Jacking
Related Projects
New Coal-Fired Power Plant in Wilhelmshaven
New Coal-Fired Power Plant in Wilhelmshaven
Germany

High quality and in time: four cooling water pipelines in pipe jacking drive for a new coal-fired power plant in Wilhelmshaven.

Read more
Channel Tunnel Rail Link
Channel Tunnel Rail Link
Great Britain

Simultaneous drive of two tunnel tubes with two EPB shields for the high-speed Channel Tunnel Rail Link.

Read more
Weinberg Tunnel, Lots 3.1 and 3.2
Weinberg Tunnel, Lots 3.1 and 3.2
Switzerland

The Zurich main station - Altstetten - Oerlikon cross-city line forms the central part of the West- East-axis of the Swiss railway lines. The Weinberg tunnel is the centrepiece of the cross-city line and connects the new through station “Löwenstraße” in Zurich with Oerlikon station.

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