Capturing cyclic mobility and preloading effects in sand using a memory-surface hardening model

H. Y. Liu, J. A. Abell, A. Diambra, F. Pisano

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

2 Citas (Scopus)

Resumen

Earthquake-induced build-up of pore water pressure may be responsible for reduced soil capacity, while the accumulation of shear strains may lead to a violation of serviceability limits. Predicting accurately the soil cyclic behaviour in relation to seismic numerical simulations is still a challenging topic in many respects. Efforts are required to improve several technical aspects, including the development of a reliable and complete constitutive model. This paper reports recent developments after the work of Liu et al. (2018a), and particularly about the performance of a new SANISAND formulation incorporating the memory surface concept (Corti et al., 2016). The performance of the model in terms of strain accumulation and pore pressure build-up is validated against high-quality laboratory test results. A modified dilatancy relationship is given to reproduce within the proposed framework proper cyclic mobility response. The effects of preliminary drained cyclic preloading on soil liquefaction resistance are also studied. © 2019 Associazione Geotecnica Italiana, Rome, Italy.
Idioma originalInglés
Título de la publicación alojadaEarthquake Geotechnical Engineering for Protection and Development of Environment and Constructions- Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, 2019
EditoresFrancesco Silvestri, Nicola Moraci
EditorialCRC Press/Balkema
Páginas3633-3640
Número de páginas8
ISBN (versión impresa)9780367143282
EstadoPublicada - 2019
Evento7th International Conference on Earthquake Geotechnical Engineering, ICEGE 2019 - Rome, Italia
Duración: 17 ene. 201920 ene. 2019

Serie de la publicación

NombreEarthquake Geotechnical Engineering for Protection and Development of Environment and Constructions- Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, 2019

Conferencia

Conferencia7th International Conference on Earthquake Geotechnical Engineering, ICEGE 2019
País/TerritorioItalia
CiudadRome
Período17/01/1920/01/19

Nota bibliográfica

Publisher Copyright:
© 2019 Associazione Geotecnica Italiana, Rome, Italy.

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