Technical specifications

Tunnel Driving Concept

  1. Design, estimate, verification, procurement, installation, commissioning, dismantling and service for the following components:

    • System for the separation of the excavated material
      Total volume: 5,000 m³/h
    • Conveyor system for the separation system
    • Dewatering system with polymeric conditioning
    • Container system for fresh and used bentonite suspension with fittings
    • Internal pipe and feeding system
    • Bentonite mixing system and silos
    • System for the generation of compressed air
    • System to increase water pressure

  2. Provision of staff for installation, commissioning, operation and dismantling

General data

JV Rastatt Tunnel
Part of the new and upgraded section of the Karlsruhe-Basel railway line
Railway tunnel, single-track
Lease of equipment & services for the TBM slurry shield works.

DB Netz AG (German Railway)
Represented by DB Projektbau GmbH

JV Ed. Züblin AG, Hochtief Solutions AG

Wayss & Freytag Ingenieurbau AG
Area Tunnelling, Department Tunnelling Technologies

August 2015 to December 2017

Gross Contract Value
Approx. 5.5 m €

Kind of tunnel
Railway tunnel,
2 * 4,3 km
Construction Method
TBM drive with 2 slurry shields
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