Coupled depth integrated two phase SPH models for fast landslides

A. YAGUE; D. MANZANAL; S. MOUSSAVI TAYYEBI; M. MARTIN STICKLE; M. PASTOR; M. MOLINOS; P. NAVAS

Point based numerical methods in geomechanics

Alert Geomaterials

Año: 2020; p. 89 - 125

Once that readers are familiar with fundamentals of SPH modeling and how this techniquecan be applied to model geotechnical problems involving large deformations,we will address a special technique which can be applied to a special group of problems,where one dimension - depth, for instance- is much smaller than the other two.This technique consists on integrate the partial differential equations describing the3D problem along depth, and thus, reducing the problem to 2D. This technique providesa reasonable compromise between cost and efficiency and has been extensivelyused in other areas such as open channel hydraulics and coastal, harbor and oceanengineering. Its application to fast fluidized landslides is relatively new in comparisonwith the other areas. This Chapter is devoted to describing depth integrated modelsfor landslide propagation.