The flowslide is reproduced by the quasi-real scale model-slope tests on river sand by artificial rainfall, in which subsurface water movement and downslope deformation are carefully monitored. The rainfall at the intensity of 100 mm/hour on the specimen formed at loose state (9.0-metre long, 1.0-metre wide, 0.5metre deep) have brought about the failure at 2,931 sec after the onset of sprinklin...

The dynamics of debris flow depend on internal stress components, such as particle–particle stress, the exerted by pore water, and interactions between particles water. Although dominant components grain size composition, effects are not fully understood. To investigate flows, fluid pressures were measured in an open channel experiment. In experiment, monodisperse flows triggered for five diffe...

We model landslide initiation as slip surface growth driven by local elevated pore pressure, with particular reference to submarine slides. Assuming an elastic medium and friction that weakens with slip, solutions exist in which the slip surface may dynamically grow, without further pore pressure increases, at a rate of the order of the sediment shear wave speed, a situation comparable to earth...