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NGI-GBV – Reconsolidation of remoulded quick clay

After the occurrence of quick clay landslides, mitigation measures to improve slope stability may be considered. The implementation of measures is often time critical in (quick) clay, but the measures require time to take effect.

This is closely correlated to dissipation of excess pore pressure and the reconsolidation of the clay after failure (and thus the evolution of the undrained shear strength with time). 

After the Gjerdrum landslide, data from triaxial tests, CPTu and more are conducted in the same locations but at different times, offering valuable insight into the reconsolidation process. This data is analysed. Hopefully, the data will make it possible to better understand the reconsolidation process and how shear strength increases after initial remoulding.

Portrait of Marius Mathisen Søvik

Marius Mathisen Søvik

Project Engineer I Slope Stability and Risk Assessment marius.mathisen.sovik@ngi.no
+47 414 36 655