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.
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 language | English |
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Title of host publication | Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions |
Editors | Francesco Silvestri, Nicola Moraci |
Place of Publication | Rome |
Publisher | Associazione Geotecnica Italiana |
Pages | 3633-3640 |
Number of pages | 8 |
ISBN (Print) | 978-0-367-14328-2 |
Publication status | Published - 2019 |
Event | 7th International Conference on Earthquake Geotechnical Engineering - Rome, Italy Duration: 17 Jun 2019 → 20 Jun 2019 http://www.7icege.com/ |
Publication series
Name | Proceedings in Earth and Geosciences |
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Conference
Conference | 7th International Conference on Earthquake Geotechnical Engineering |
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Abbreviated title | 7ICEGE |
Country/Territory | Italy |
City | Rome |
Period | 17/06/19 → 20/06/19 |
Internet address |