3D Groundmodel Neder-Betuwe levee reinforcement project in the Netherlands-PPT Presentation

PPT Presentation

Pdf Summary

The Neder-Betuwe levee reinforcement project in the Netherlands developed a 3D ground model covering a 20-kilometre corridor, approximately 160 metres wide and 30–50 metres deep. The model integrates CPT, borehole and electrical resistivity tomography (ERT) data to represent seven distinct soil layers. More than 8,300 soil-layer identifications informed the classification process, while automated interpolation allows the model to be updated as new data becomes available.<br /><br />The model supports several engineering applications. For settlement analysis, cross-sections were generated every 10 metres, and a natural-neighbour algorithm converted two-dimensional settlement results into a continuous surface for use across disciplines. For heave and uplift calculations, it helped inform the design of 10.9 kilometres of sheetpile. Slope-stability analysis supported reinforcement of 5.9 kilometres of levee, helping minimise the project footprint and preserve nearby buildings. It also enabled optimisation of sheetpile length and type, anchors, safety factors, and structural deformations and forces.<br /><br />The project highlights how integrating diverse datasets in a shared 3D ground model can improve the reliability and efficiency of geotechnical analysis and design. The presentation also reports environmental benefits from material-reuse strategies, including a 97.5% reduction in CO₂-equivalent emissions. Overall, the model contributed to safer, more sustainable infrastructure and more efficient collaboration across engineering disciplines.

Keywords

Neder-Betuwe

levee reinforcement

3D ground model

geotechnical analysis

CPT data

borehole data

electrical resistivity tomography

settlement analysis

slope stability

CO2 reduction