Predicting moisture levels in response to climatic variables: an approach based on spectral analysis
2024
Vargas Alzate, Yeudy Felipe | Vaunat, Jean | Macias Gutierrez, Andres Miguel | Mariano, Alessandra di | Zapata Franco, Ana Maria | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental | Universitat Politècnica de Catalunya. Doctorat en Enginyeria del Terreny | Universitat Politècnica de Catalunya. Doctorat en Enginyeria Sísmica i Dinàmica Estructural | Universitat Politècnica de Catalunya. GGMM - Grup de Geotècnia i Mecànica de Materials
Changes in water content under climatic actions is one important process in several geotechnical issues, such as earth-structures deformation, foundation heave/settlement or slope failures seated in the vadose zone. Under certain conditions, these changes may act as a forcing condition for the underlying saturated water column and control cyclic pore pressure at higher depths. The deterministic modelling of these effects requires considering soil-atmosphere thermo-hydro-mechanical interactions under long time high-frequency series. Associated computational cost is a limitation for this type of simulations, particularly when going to large geometry or regional analyses. This article shows two strategies to estimate the soil hydraulic response in time under climatic series handled by Fourier decomposition. These strategies present similarities with techniques used to analyse soil response under seismic actions and propose to define soil transfer functions relating the input (climatic time series) to the output (water content or suction/pore pressure variation at several depths).
Afficher plus [+] Moins [-]This research has been funded by the Spanish Research Agency (AEI) through the project with reference: TED2021-132559B-I00 – J-02970.
Afficher plus [+] Moins [-]Postprint (published version)
Afficher plus [+] Moins [-]Mots clés AGROVOC
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