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dc.contributor.advisorPando-López, Miguel A.
dc.contributor.authorFernós-Jones, Ricardo
dc.description.abstractThis research study focuses on evaluating slope stability within the watershed during rainfall events. Detailed slope water flow and stability analyses were performed in order to determine the rainfall duration and intensity which most probably led the slope towards failure. Slope models were determined based on a case study slope failure and fictitious slope failures consisting of typical soils and slope angles within the watershed. Results from simulated slope failures demonstrated that these intensities were lower than those depicted by both Pando et al. (2005) and Larsen and Simon (1993) generalized landslide triggering rainfall thresholds. A lower bound threshold was defined by these intensities as i = 22.06D-0.72, where i was the triggering rainfall intensity (mm/hr) of D duration (hrs). Still, this threshold was only found reliable once an initial accumulated precipitation amount exceeded precipitation values depicted by rainstorms from Larsen and Simon (1993) threshold.en_US
dc.description.abstractEsta investigación se enfoca en evaluar la estabilidad de taludes dentro de la cuenca durante eventos de lluvia. Análisis detallados de flujo de agua y estabilidad de talud fueron llevados a cabo con el fin de determinar la duración y magnitud de lluvia que más probablemente causan inestabilidad de talues. Los modelos de taludes analizados fueron generados en base a tipos de suelos y pendientes encontradas dentro de la cuenca, para un talud con falla actual y taludes con fallas ficticioas. Los resultados de las simulaciones de esta falla de talud demostraron que las intensidades que probablemente causaron la falla eran menores que las descritas por Pando et al. (2005) y Larsen y Simon (1993) en sus respectivos umbrales. Un límite inferior del umbral se definió mediante las intensidades como i = 22.06D-0.72, donde i era la intensidad de lluvia (mm/hr) de D duración (hrs). Este umbral fue fiable sólo cuando la cantidad de acumulada de precipitación excedía los valores de precipitación descritos por el umbral de lluvias definido por Larsen y Simon (1993).
dc.subjectWatershed stabilityen_US
dc.subject.lcshSlopes (Soil mechanics)--Puerto Rico--Stabilityen_US
dc.subject.lcshLandslides--Puerto Ricoen_US
dc.titleEstablishing the magnitude of landslide triggering rainstorm events within the Cayaguas river watershed: a proposed methodologyen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2009 Ricardo Fernós-Jonesen_US
dc.contributor.committeeHarmsen, Eric
dc.contributor.committeePagán Trinidad, Ismael
dc.contributor.representativeWang, Guoquan Engineeringen_US
dc.contributor.collegeCollege of Engineeringen_US
dc.contributor.departmentDepartment of Civil Engineeringen_US

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    Items included under this collection are theses, dissertations, and project reports submitted as a requirement for completing a degree at UPR-Mayagüez.

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