Rapid landslides are commonly mitigated by artificial embankments that can be constituted of granular material reinforced by geosynthetics. For their design, the evaluation of debris flow impact force against the structure is a crucial issue. The paper focuses on determining the forces transmitted over time to a geosynthetic reinforced structure and on analyzing its response to the impact in terms of horizontal displacement. The impact force has been evaluated adding the static component, depending on the flowing mass height, to the dynamic component, depending on both the flowing mass height and its velocity. In the analyses of the geosynthetic reinforced structure response, two cases have been considered regarding the soil – geogrid interaction: the first one considers a constant soil shear strength angle along the height of embankment the second one considers the variation of soil shear strength angle along the height.
Evaluation of the geosynthetic reinforced structure response to a debris flow impact / Gioffrè, D.; Ciurleo, M.; Mandaglio, M. C.; Moraci, N.. - (2023), pp. 960-965. (Intervento presentato al convegno Geosynthetics: Leading the Way to a Resilient Planet tenutosi a Roma nel 17-21 Settembre 2023) [10.1201/9781003386889-116].
Evaluation of the geosynthetic reinforced structure response to a debris flow impact
N. Moraci
2023-01-01
Abstract
Rapid landslides are commonly mitigated by artificial embankments that can be constituted of granular material reinforced by geosynthetics. For their design, the evaluation of debris flow impact force against the structure is a crucial issue. The paper focuses on determining the forces transmitted over time to a geosynthetic reinforced structure and on analyzing its response to the impact in terms of horizontal displacement. The impact force has been evaluated adding the static component, depending on the flowing mass height, to the dynamic component, depending on both the flowing mass height and its velocity. In the analyses of the geosynthetic reinforced structure response, two cases have been considered regarding the soil – geogrid interaction: the first one considers a constant soil shear strength angle along the height of embankment the second one considers the variation of soil shear strength angle along the height.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.