A good working balance between simplicity and reliability in assessing seismic slope stability is represented by displacement-based methods, in which the effects of deformability and ductility can be either decoupled or coupled in the dynamic analyses. In this paper, a 1D lumped mass stick slip model is developed, accounting for soil heterogeneity and non linear behaviour, with a base sliding mechanism at a potential rupture surface. The results of the preliminary calibration show a good agreement with frequency-domain site response analysis in no-slip conditions. The comparison with rigid sliding block analyses and with the decoupled approach proves that the stick-slip procedure can result increasingly unconservative for soft soils and deep sliding depths. © 2008 American Institute of Physics.
Titolo: | Prediction of seismic slope displacements by dynamic stick-slip analyses |
Autori: | |
Data di pubblicazione: | 2008 |
Abstract: | A good working balance between simplicity and reliability in assessing seismic slope stability is represented by displacement-based methods, in which the effects of deformability and ductility can be either decoupled or coupled in the dynamic analyses. In this paper, a 1D lumped mass stick slip model is developed, accounting for soil heterogeneity and non linear behaviour, with a base sliding mechanism at a potential rupture surface. The results of the preliminary calibration show a good agreement with frequency-domain site response analysis in no-slip conditions. The comparison with rigid sliding block analyses and with the decoupled approach proves that the stick-slip procedure can result increasingly unconservative for soft soils and deep sliding depths. © 2008 American Institute of Physics. |
Handle: | http://hdl.handle.net/11584/115604 |
ISBN: | 9780735405424 |
Tipologia: | 4.1 Contributo in Atti di convegno |
File in questo prodotto:
File | Descrizione | Tipologia | Licenza | |
---|---|---|---|---|
P4.pdf | Abstract | Administrator Richiedi una copia |