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Slab Track replacement works, Hohenthurm

Replacement works of the existing slab track between the two cities of Hohenthurm and Halle/Saale, a distance of approx. 4.7km

 

Hohenthurm_Oberbauerneuerung_Feste Fahrbahn_1

Slab Track replacement works

Client:

DB Netz AG

Location::

Hohenthurm, Germany

Project time:

12/2016 - 04/2017

Executing Companies::

Rhomberg Bahntechnik (consortium with GP Günter Papenburg AG, RS Gleisbau GmbH, Sersa GmbH)

Contract value (net)::

13.87 Mio. € (percentage of consortium 60%)

 

In August 2016 the ‘JV Arge FF Hohenthurm’ got awarded for the replacement works of the existing slab track between the two cities of Hohenthurm and Halle/Saale, a distance of approx. 4.7km. The works included the removal of the existing slab track (concrete blocks placed on an asphalt layer) including all of the noise absorbing elements. Additionally, some platform adjustments along the line as well as the installation of two 94to precast concrete elements were part of the contract.

Due to the limited time available as well as the time of the year (December till May) the JV suggested the use the Getrac A3 system to replace the slab track. This was in contrary to the planned system which would have required a lot of concreting works in the middle of the winter.

After the removal of the slab track and the milling­off of the top surface layer, some new asphalt layer was installed by use of a high precision paver. The Getrac sleeper were placed on top of the new asphalt layers ready to receive the rails. After lining the skeleton track by use of a modified tamping machine, the shimming of the rails as well as the installation of the noise absorbing elements proceeded.

Fact Box:

The following works were undertaken as part of the project:

  • 4.700m slab track, system Getrac A3 (including noise absorbing elements)
  • 2 transition areas (Getrac A3 to ballast) using Rheda 2000
  • 2 transition areas (Getrac A3 to Boegl prefabricated slab)
  • 2 94to precast concrete elements to support the platforms
  • 8.000to ballast either side of the track as some sort of noice absorbing measure
  • Adjustment of the catenary
  • Steel bridge refurbishing works