Technical specifications

Scope of works:

Construction of pipeline tunnel

  • Length: 612 m
  • Internal diameter: 1.80 m
  • External diameter: 2.30 m
  • Min. radius: 430 m
  • Min. cover: 8.00 m
  • Max. cover: 25.00 m

Jacking Pipes:

  • Type: DN 1800 reinforced concrete
  • Number: 167 pieces
  • Length: 3.00/4.00 m
  • Wall thikness: 0.25 m

Construction method:

  • Pipe jacking using a slurry shield

Geology:

  • Marl, clay, sandstone

General data

Project
Überruhr Pipeline Tunnel, Essen, Germany

Client
Entwässerung Essen GmbH

Contractor
Wayss & Freytag Ingenieurbau AG

Construction period
2018 to 2019

Net construction costs
€ 8 million

Utilisation
Water/Sewerage
Type
Sewerage tunnel
Length
612 m
Construction Method
Pipe Jacking using a slurry shield
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