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

Haoyuan Liu, J. A. Abell, A. Diambra, Federico Pisano

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)
103 Downloads (Pure)

Abstract

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.
Original languageEnglish
Title of host publicationEarthquake Geotechnical Engineering for Protection and Development of Environment and Constructions
EditorsFrancesco Silvestri, Nicola Moraci
Place of PublicationRome
PublisherAssociazione Geotecnica Italiana
Pages3633-3640
Number of pages8
ISBN (Print)978-0-367-14328-2
Publication statusPublished - 2019
Event7th International Conference on Earthquake Geotechnical Engineering - Rome, Italy
Duration: 17 Jun 201920 Jun 2019
http://www.7icege.com/

Publication series

NameProceedings in Earth and Geosciences

Conference

Conference7th International Conference on Earthquake Geotechnical Engineering
Abbreviated title7ICEGE
CountryItaly
CityRome
Period17/06/1920/06/19
Internet address

Bibliographical note

Accepted Author Manuscript

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