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- NGI-GBV – Quantification of 3D effects on slope stability in QC terrain
NGI-GBV – Quantification of 3D effects on slope stability in QC terrain
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There is today no reliable approach to model the complete process, including initiation and run-out, of landslides in sensitive clays, both on land and offshore. A better understanding and modelling of the entire process would help assess more correctly potential release zones for landslides in sensitive clays, and thereby lead to a better hazard zone mapping than what is done today. The purpose of the project is to model landslide initiation and propagation (mobility) with the coupled Eulerian-Lagrangian (CEL) version of the finite element method (FEM)-based program ABAQUS in 3D. The project includes a collaboration with Tongji University (Shanghai, China). Tongji was awarded recently an international research Center of Excellence on Resilient Infrastructure (ICRI) to which NGI is a partner.
Predicted Rissa landslide propagation versus time, plan view, modelled by BingClaw. Red dotted curve is the mapped landslide extent. (Liu et al. 2021).
![](/globalassets/bilder/prosjekter/international-quick-clay-center/figur2-qcc.jpg?width=664&quality=80)
Figure 1. Contour depicting development of softening in the quick clay layer for the Skjeggestad bridge slope. The colour scale illustrates the degree of softening (where 0 no softening, and 1 is complete softening).