DYNAMIC LAYERED MODEL
OF SUBMARINE SEDIMENT SLIDE

Stress-strain dependence for sedimentsDistribution of friction angles used for calculation ___________________

II stage: Taking into account 1) rheological effect of decreased sediment mass strength above yield stress; 2) porous saturation of sediment mass; 3) possibility of landslide masses liquefaction under condition of any external action. The key factor which controls the localisation process of plastic strain and related slope instability is a friction angle.

[1] Garagash I.A., Lobkovsky L.I., Kozyrev O.R., Mazova R.Kh. Generation and runup
of tsunami wave under submarine landslide. Oceanology 43, 173-181 , 2003.
[2] Garagash I.A., Chemenda A. Numerical modeling of submarine landsliding triggered by seismic and tectonic processes. in: Proc. of 2nd Taiwan-France Symposium on Natural Hazards Mitigation: Methods and Applications, Villfranche-sur-Mer (SE France), 2003.