Print Email Facebook Twitter Capturing cyclic mobility and preloading effects in sand using a memory-surface hardening model Title Capturing cyclic mobility and preloading effects in sand using a memory-surface hardening model Author Liu, H. (TU Delft Geo-engineering) Abell, J. A. (Universidad de los Andes) Diambra, A. (University of Bristol) Pisano, F. (TU Delft Geo-engineering) Contributor Silvestri, Francesco (editor) Moraci, Nicola (editor) Date 2019 Abstract Earthquake-induced build-up of pore water pressure may be responsible forreduced 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. To reference this document use: http://resolver.tudelft.nl/uuid:a870375f-a54b-4efb-9068-ed901e79c0ba Publisher Associazione Geotecnica Italiana, Rome ISBN 978-0-367-14328-2 Source Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions Event 7th International Conference on Earthquake Geotechnical Engineering, 2019-06-17 → 2019-06-20, Rome, Italy Series Proceedings in Earth and Geosciences Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type conference paper Rights © 2019 H. Liu, J. A. Abell, A. Diambra, F. Pisano Files PDF 21_2019_Liu_Abell_Diambra ... E_Rome.pdf 2.01 MB Close viewer /islandora/object/uuid:a870375f-a54b-4efb-9068-ed901e79c0ba/datastream/OBJ/view