Numerical modelling of the dynamic behavior of gravel-rubber mixtures and their efficiency as liquefaction countermeasures

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dc.contributor.authorPaul SM
dc.contributor.authorChiaradonna A
dc.contributor.authorChiaro, Gabriele
dc.date.accessioned2024-08-12T00:48:57Z
dc.date.available2024-08-12T00:48:57Z
dc.date.issued2024
dc.description.abstractDevastating earthquakes, such as those that recently affected Turkey and Morocco in 2023, are among the deadliest natural disasters. In addition, liquefaction-induced damage induced by strong shakings further exacerbates economic losses and elongates the repairing time for structures and infrastructures. Consequently, improving foundation soils and strengthening structural elements are possible ways to enhance the resilient capacity of a building to resist seismic forces. The main goal of this study is to numerically investigate the behaviour of innovative synthetic materials, made by a mixture of gravel and granulated rubber, used as geotechnical seismic isolation (GSI) systems relevant to the mitigation of seismic risk. To this aim, numerical simulations of a well-known and instrumented gravelly site affected by liquefaction during the 1995 Kobe earthquake are performed using a pore water pressure model implemented in one of the most popular nonlinear software adopted for dynamic analyses. The analyses were carried out with and without soil treatment made by a mixture of gravel and rubber, showing the efficacy of the proposed intervention. The result of the study contributes to expanding the knowledge about mixture-composite materials and assessing the gravel-rubber mixtures (GRMs) as an effective mitigation treatment of seismic risk.
dc.identifier.citationPaul SM, Chiaradonna A, Chiaro G (2024). Numerical modelling of the dynamic behavior of gravel-rubber mixtures and their efficiency as liquefaction countermeasures. Osaka, Japan: 8th International Conference on Earthquake Geotechnical Engineering. 07/05/2024-10/05/2024. Japanese Geotechnical Society Special Publication. 10. 60. 2414-2419.
dc.identifier.doihttp://doi.org/10.3208/jgssp.v10.P2-13
dc.identifier.issn2188-8027
dc.identifier.urihttps://hdl.handle.net/10092/107278
dc.publisherThe Japanese Geotechnical Society
dc.rightsAll rights reserved unless otherwise stated
dc.rights.urihttp://hdl.handle.net/10092/17651
dc.subjectliquefaction
dc.subjectgravel–rubber mixtures
dc.subjectnumerical analyses
dc.subjectDEEPSOIL
dc.subjectPort Island
dc.subject.anzsrc40 - Engineering::4005 - Civil engineering::400502 - Civil geotechnical engineering
dc.subject.anzsrc40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineering
dc.titleNumerical modelling of the dynamic behavior of gravel-rubber mixtures and their efficiency as liquefaction countermeasures
dc.typeConference Contributions - Published
uc.collegeFaculty of Engineering
uc.departmentCivil and Natural Resources Engineering
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