000011990 001__ 11990
000011990 005__ 20141205160008.0
000011990 04107 $$aeng
000011990 046__ $$k2008-10-12
000011990 100__ $$aVessia, Giovanna
000011990 24500 $$aA Numerical Approach for Liquefaction Potential Definition

000011990 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011990 260__ $$b
000011990 506__ $$arestricted
000011990 520__ $$2eng$$aLiquefaction phenomenon in saturated granular soil is not that frequent as amplification cases but can cause heavy damages on buildings and infrastructures whenever is occurs especially within superficial strata. In fact the lack of shear resistance of soil due to liquefaction affects mostly shallow foundations and road surfaces. Up now, several studies have been addressed to overpass the inadequacy of liquefaction safety factor by means of introducing the liquefaction potential. Nevertheless, the difficulty in (1) defining a scale of damage related to liquefaction potential values and (2) collecting field data from damages caused prevalently by liquefaction makes the punctual factor of safety still popular in engineering practice. In this paper a new approach to liquefaction potential estimation is proposed based on finite element dynamic analyses and on the concept of “significant volume” according to possible effects suffered by shallow foundations. One-dimensional simulation of liquefaction occurrence is performed by means of the Pastor-Zienkiewicz constitutive law. Hence the estimation of liquefaction potential is gained as well as the stress influence factor from Westergaard solution is calculated.

000011990 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011990 653__ $$aLiquefaction potential, Pastor-Zienkiewicz constitutive law, granular soil. 

000011990 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011990 720__ $$aVessia, Giovanna$$iTruillo, J.Arias$$iLopez-Querol, Susana$$iCherubini, Claudio$$iBlázquez, Rafael$$iFoti, Dora
000011990 8560_ $$ffischerc@itam.cas.cz
000011990 8564_ $$s169430$$uhttps://invenio.itam.cas.cz/record/11990/files/04-02-0018.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 04-02-0018.
000011990 962__ $$r9324
000011990 980__ $$aPAPER