000021863 001__ 21863
000021863 005__ 20170622131309.0
000021863 04107 $$aeng
000021863 046__ $$k2017-06-15
000021863 100__ $$aRahhal, Muhsin
000021863 24500 $$aNEW INSIGHTS IN THE LIQUEFACTION POTENTIAL EVALUATION METHODS FOR SOILS

000021863 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021863 260__ $$bNational Technical University of Athens, 2017
000021863 506__ $$arestricted
000021863 520__ $$2eng$$aThe paper analyses the evaluation of the liquefaction potential based on in situ tests. The four studied methods are those recommended by the NCEER and those proposed by Boulanger and Idriss. These methods are based on the cyclic stress approach, which characterizes both earthquake loading and soil liquefaction resistance in terms of cyclic stresses. Liquefaction resistance is based on two field tests results, namely SPT and CPT. An extensive analysis is carried out to understand and compare the results obtained. The factor of safety against liquefaction is discussed in terms of many parameters particularly the depth, the percentage of fines and the number of blows N. The analyzed case study is a site in Qatar. Hundreds of CPT and SPT were performed at this site where the foundation soil is calcareous sand, this kind of soil being not commonly considered in the literature. As far as factors of safety against liquefaction are concerned, the results are very close in general, and correspond to the geological and geotechnical soil profile. Analysis shows that the CPT Boulanger and Idriss method is the most conservative. The case study wants to contribute to the understanding of the factors that influence the cyclic stress approach. The SPT resistance is most commonly used but the CPT resistance approach must be gaining more fields in future earthquake geotechnical engineering projects.

000021863 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021863 653__ $$aLiquefaction Potential, Calcareous Sand, SPT, CPT.

000021863 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021863 720__ $$aRahhal, Muhsin$$iZakhem, Dona
000021863 8560_ $$ffischerc@itam.cas.cz
000021863 8564_ $$s791642$$uhttps://invenio.itam.cas.cz/record/21863/files/18171.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS11] Recent advances and challenges in geotechnical earthquake engineering
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000021863 962__ $$r21500
000021863 980__ $$aPAPER