contributor author | Hossein Hayati | |
contributor author | Ronald D. Andrus | |
date accessioned | 2017-05-08T21:46:27Z | |
date available | 2017-05-08T21:46:27Z | |
date copyright | November 2009 | |
date issued | 2009 | |
identifier other | %28asce%29gt%2E1943-5606%2E0000134.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/61887 | |
description abstract | Data 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. | |
publisher | American Society of Civil Engineers | |
title | Updated Liquefaction Resistance Correction Factors for Aged Sands | |
type | Journal Paper | |
journal volume | 135 | |
journal issue | 11 | |
journal title | Journal of Geotechnical and Geoenvironmental Engineering | |
identifier doi | 10.1061/(ASCE)GT.1943-5606.0000118 | |
tree | Journal of Geotechnical and Geoenvironmental Engineering:;2009:;Volume ( 135 ):;issue: 011 | |
contenttype | Fulltext | |