Cylic Undrained DSS Testing of Christchurch Sands

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dc.contributor.authorCappellaro, Claudio
dc.contributor.authorCubrinovski, Misko
dc.contributor.authorBray, Jonathan
dc.contributor.authorChiaro, Gabriele
dc.contributor.authorRiemer, Michael
dc.contributor.authorStringer, Mark
dc.date.accessioned2018-09-19T02:20:56Z
dc.date.available2018-09-19T02:20:56Z
dc.date.issued2018en
dc.description.abstractEarthquake-triggered soil liquefaction caused extensive damage and heavy economic losses in Christchurch during the 2010-2011 Canterbury earthquakes. The most severe manifestations of liquefaction were associated with the presence of natural deposits of clean sands and silty sands of fluvial origin. However, liquefaction resistance of fines-containing sands is commonly inferred from empirical relationships based on clean sands (i.e. sands with less than 5% fines). Hence, existing evaluation methods have poor accuracy when applied to silty sands. Also, existing methods do not quantify appropriately the influence on liquefaction resistance of soil fabric and structure, which are unique to a specific depositional environment. This study looks at the influence of fines content, soil fabric (i.e. arrangement of soil particles) and structure (e.g. layering, segregation) on the undrained cyclic behaviour and liquefaction resistance of fines-containing sandy soils from Christchurch using Direct Simple Shear (DSS) tests on soil specimens reconstituted in the laboratory with the water sedimentation technique. The poster describes experimental procedures and presents early test results on two sands retrieved at two different sites in Christchurch.en
dc.identifier.urihttp://hdl.handle.net/10092/16010
dc.language.isoen
dc.rightsCC-BY 4.0 Internationalen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/legalcode
dc.titleCylic Undrained DSS Testing of Christchurch Sandsen
dc.typeConference Contributions - Otheren
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