Alex Garces

University of Chile · Departamento de Ingeniería Civil

Traditionally, interactions between tributary alluvial fans and the main river have been studied in the field and in the laboratory, giving rise to different conceptual models that explain their role in the sediment cascade. On the other hand, numerical modeling of these complex interactions is still limited because the broad debris flow transport...

Accepted paper An extreme precipitation event produced catastrophic debris flows in central Chile during 29-31 January 2021 (austral summer). Our study focuses on the triggering factors and dynamic behavior of hail-debris flows affecting the small commune of Malloa (Central Valley), which caused 200 injured and 73 damaged houses. We carried out a...

Traditionally, interactions between tributary alluvial fans and the main river have been studied on the field and in the laboratory, giving rise to different conceptual models explaining its role in the sediment cascade. On the other hand, numerical modeling of these complex interactions is still limited because the broad debris flow transport regi...

Over the past decades, several numerical models have been developed to understand, simulate and predict debris flow events. Typically, these models simplify the complex interactions between water and solids using a single-phase approach and different rheological models to represent flow resistance. In this study, we perform a sensitivity analysis o...

Over the past decades, several numerical models have been developed to understand, simulate and predict debris flow events. Typically, these models simplify the complex interactions between water and solids using a single-phase approach and different rheological models to represent flow resistance. In this study, we perform a sensitivity analysis o...

Over the past decades, many numerical models have been developed to understand, simulate and predict debris flow processes. Typically, these models simplify the complex interactions between water and solids using a single phase approach and different rheological models to represent flow resistance. Further, different rheological models have differe...

Debris flows present serious hazards to low-lying communities and local socio-economy. These events show to be increasing in frequency given recent climatic changes. Intense rainfall between 24th and 26th of March 2015 took place in the North of Chile. Due to this exceptional event, several debris flow events were triggered in sub-catchments causin...