Three new railway lines needed to be routed via the existing Frankfurt-Mainz for the Gateway Gardens urban-suburban rail connection at railway kilometre 30.017.
As part of this construction project, a structure needed to be built at a height of around 60 m over the Eichengrundschneise, along which Mainova AG operates two high-pressure gas pipelines. For this purpose, the DN 800 jacket pipe needed to be extended to 46 m and the HD147 DN 400 MOP 70 high-pressure gas pipeline needed to be renewed to 100 m.
The new DN 400 St DP70 gas pipeline was installed by bundling protective cable ducts (1 x da110 and 2 x da160). A new measuring and telecontrol cable and a new 10 kV medium voltage cable were pulled in along the entire length of the protective cable ducts.
Mainova AG’s HD4 DN 300 St MOP40 high-pressure gas pipeline was decommissioned and dismantled in the southern section of the 3520 railway line. The DN 700 jacket pipe was insulated with lightweight porous concrete.
- Netzdienste Rhein-Main GmbH
- Place of execution:
- Frankfurt am Main – Eichengrundschneise
- Duration of project:
- June 2017 - November 2017
- Südwestdeutsche Rohrleitungsbau GmbH
- Contract value:
- 0.5 Mio EUR