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contributor authorHossein Hayati
contributor authorRonald D. Andrus
date accessioned2017-05-08T21:46:27Z
date available2017-05-08T21:46:27Z
date copyrightNovember 2009
date issued2009
identifier other%28asce%29gt%2E1943-5606%2E0000134.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/61887
description abstractData from over 30 sites in 5 countries are analyzed to develop updated factors for correcting liquefaction resistance for aged sand deposits. Results of cyclic laboratory tests on relatively undisturbed and reconstituted specimens suggest an increase in the correction factors of 0.12 per log cycle of time and an average reference age of 2 days for the reconstitute specimens. Laboratory and field test results combined with cyclic resistance ratio (CRR) charts suggest an increase in the correction factors of 0.13 per log cycle of time and an average reference age of 23 years. A reference age of 23 years seems appropriate for the commonly used CRR charts derived from field liquefaction and no liquefaction case history data. Because age of natural deposits is often difficult to accurately determine, a relationship between measured to estimated shear-wave velocity ratio (MEVR) and liquefaction resistance correction factor is also derived directly from the compiled data. This new MEVR-liquefaction resistance correction factor relationship is not as sensitive to MEVR as in the relationship derived indirectly in a previous paper.
publisherAmerican Society of Civil Engineers
titleUpdated Liquefaction Resistance Correction Factors for Aged Sands
typeJournal Paper
journal volume135
journal issue11
journal titleJournal of Geotechnical and Geoenvironmental Engineering
identifier doi10.1061/(ASCE)GT.1943-5606.0000118
treeJournal of Geotechnical and Geoenvironmental Engineering:;2009:;Volume ( 135 ):;issue: 011
contenttypeFulltext


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