Role of hydraulic conductivity on the mechanism of earthquake induced submarine landslides – a CFD-MPM analysis
Role of hydraulic conductivity on the mechanism of earthquake induced submarine landslides – a CFD-MPM analysis
Submarine landslides can occur in many different soil types, for example in clay and sand. The failure mechanism and morphology of these two types of submarine landslides are quite different. Sand failures are typically characterized by sand flow slides, whereas clay failures are characterized by spread, which results from the dislocation and movement of soil blocks. There are significant differences between these types of submarine landslides due to the differences in hydraulic conductivity. It is hypothesized that the hydraulic conductivity of soil layers is a critical factor in the failure mechanism of seismic-induced submarine landslides. It is, however, unclear how the hydraulic conductivity influences the failure mechanism of seismic induced submarine landslides. Utilizing an advanced numerical technique (coupled Computational Fluid Dynamics and Material Point Method), we simulate the full process of seismic-induced submarine landslides and examine the role of the hydraulic conductivity of the soil in their failure mechanism.
Quoc Anh Tran; Erik Ravik Sorlie; Gustav Grimstad; Gudmund Reidar Eiksund
10th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE2023)
12. Offshore geotechnics
https://doi.org/10.53243/NUMGE2023-79
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom