Constitutive and numerical modellig: rock avalanches

M. STICKLE; D. MANZANAL; A. YAGUE; M. PASTOR

Seul

Conferencia; 19th International Conference on Soil Mechanics and Geotechnical Engineering; 2017

ISSMGE

Rock avalanches present high velocities of propagation, and large volume of materials that generate extremelymobility capable of travelling long distance and spreading over large areas causing high destructive power. The accurate predictionof runout, depth and velocity of rock avalanches is of paramount importance since, in general, preventing it is not possible.The purpose of this paper is to assess the influence of the rheology on the avalanche properties using a depth integrated, SPHmodel. The paper compares the performance of different rheological models to reproduce the track, runout and depth of the finaldeposit for a real event such as Thurwieser rock avalanche. The paper provides information on the proposed model accuracy andlimitations.