Seismically induced landslides can often cause severe human and economic losses. Therefore, it is worth assessing the seismic performance of slopes through a reliable quantification of the permanent displacements induced by seismic loading. This paper presents a new semiempirical relationship linking the permanent earthquake-induced displacements of slopes to one or two synthetic ground motion parameters developed considering the Italian seismicity, and a comparison with existing simplified displacement models is illustrated. Once combined with a fully probabilistic approach, these relationships provide a useful tool for practicing engineers and national agencies for a preliminary estimate of the seismic performance of a slope. In this perspective, the predictive capability of different semiempirical relationships is analyzed with reference to the permanent displacements evaluated for the Italian seismicity assimilating the slope to a rigid body and adopting the Newmark integration approach. The consequences of the adoption of these relationships on the results of the probabilistic approach are illustrated in terms of displacement hazard curves and hazard maps for different slope scenarios.

Influence of the displacement predictive relationships on the probabilistic seismic analysis of slopes / Rollo, Fabio; Rampello, Sebastiano. - In: JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING. - ISSN 1090-0241. - 149:6(2023), pp. 1-14. [10.1061/JGGEFK.GTENG-11162]

Influence of the displacement predictive relationships on the probabilistic seismic analysis of slopes

Rollo, Fabio
;
Rampello, Sebastiano
2023

Abstract

Seismically induced landslides can often cause severe human and economic losses. Therefore, it is worth assessing the seismic performance of slopes through a reliable quantification of the permanent displacements induced by seismic loading. This paper presents a new semiempirical relationship linking the permanent earthquake-induced displacements of slopes to one or two synthetic ground motion parameters developed considering the Italian seismicity, and a comparison with existing simplified displacement models is illustrated. Once combined with a fully probabilistic approach, these relationships provide a useful tool for practicing engineers and national agencies for a preliminary estimate of the seismic performance of a slope. In this perspective, the predictive capability of different semiempirical relationships is analyzed with reference to the permanent displacements evaluated for the Italian seismicity assimilating the slope to a rigid body and adopting the Newmark integration approach. The consequences of the adoption of these relationships on the results of the probabilistic approach are illustrated in terms of displacement hazard curves and hazard maps for different slope scenarios.
2023
slopes; semiempirical relationships; earthquake-induced displacements; probabilistic analysis; displacement hazard curves; displacement hazard maps
01 Pubblicazione su rivista::01a Articolo in rivista
Influence of the displacement predictive relationships on the probabilistic seismic analysis of slopes / Rollo, Fabio; Rampello, Sebastiano. - In: JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING. - ISSN 1090-0241. - 149:6(2023), pp. 1-14. [10.1061/JGGEFK.GTENG-11162]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1675753
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