The railway line Oldenburg-Wilhelmshaven built in the 1930s was in two sections still single- track and had various shortcomings. The track system was not up to the forecast freight traffic, especially after the opening of the Jade-Weser-Port.
In the 3rd stage of development, the upgraded line was completely double-tracked, electrified and the permissible pace increased to 120 km/h.
The 52 km long route is largely over marshes. The subsoil conditions are very often characterized by soft layers (i.a. clay and peat) and the groundwater is very high.
- supervison of the digestion and field trials and conducting laboratory tests
- creation of subsoil assessments with subsoil assessment including dimensioning of the base courses
- slope fracture and terrain fracture calculations
- stability proofs for supporting structures and earthworks
- serviceability checks for the route
- expert evaluations for the mixing-injection method for soil improvement
- special expert for piles in accordance with UiG/ZiE for foundations of low-level foundations in special areas
- geotechnical consultation of the client during the planning and execution
- vibration measurements
- seismic measurements (Downhole, Crosshole Measurements, Seismic Cone Penetration Testing, Seismic refraction)
- dynamic calculations to determine the necessary stengthening measures
- demonstration of the dynamic stability of the track according to RIL 836 with dynamic soil-structure interaction in a finite element model
- installation of the reinforced protective layer as an upgrade measure for the dynamic stability of the track in Varel station