6533b838fe1ef96bd12a3de8

RESEARCH PRODUCT

One-Dimensional Transient Analysis of Rainfall Infiltration in Unsaturated Volcanic Ash

Lyesse LalouiJohn EichenbergerJames FernAlessio Ferrari

subject

HydrologyUnsaturatedContext (language use)Wetting frontTransient analysisRainfall infiltrationrainfall-induced landslideunsaturated volcanic ashFactor of safetyground water seepageVolcanic AshGeologySoil mechanicsinfinity slope analysisVolcanic ashGroundwater seepage

description

The paper presents a one-dimensional hydro-mechanical analysis of rainfall infiltration in a loose volcanic ash and the utilisation of a factor of safety for the implementation of an early-warning system. Three different rainy seasons with different rainfall patterns were analysed . The analysis aims to understand the influence of the antecedent rainfall on the wetting front, the pore-water pressures and the factor of safety. The analysis was carried out in the context of a Master project of the first author at the Laboratory for Soil Mechanics of EPFL.

https://infoscience.epfl.ch/record/205395