000011216 001__ 11216
000011216 005__ 20141205155847.0
000011216 04107 $$aeng
000011216 046__ $$k2008-10-12
000011216 100__ $$aOlgun, C.G.
000011216 24500 $$aDynamic Behavior of Fine Grained Soils – 1999 Kocaeli Earthquake Case History

000011216 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011216 260__ $$b
000011216 506__ $$arestricted
000011216 520__ $$2eng$$aSignificant earthquake-induced settlements occurred in saturated fine-grained soils at the Carrefour Shopping Center in Turkey during the 1999 Kocaeli Earthquake (M=7.4). Construction was ongoing when the earthquake struck. Extensometers had been installed to monitor settlements beneath a 3.3-m surcharge fill. These devices made possible the measurement of earthquake-induced settlements beneath the fill at six elevations within the profile. Most of the settlement was due to the undrained cyclic failure of silt/clay (ML/CL) and high-plasticity clay (CH) strata. Each suffered about 1% vertical strain. Because the soils were plastic and did not meet the Chinese criteria, they were classified as “non-liquefiable” by site engineers and unanticipated as a source of significant seismic deformation. The study demonstrates the limitations of generalized liquefaction screening methods, and dispels the common misconception that high plasticity soils cannot generate high pore pressures and fail under cyclic loading. Subsoil investigations have been performed at the site and laboratory tests have been conducted on undisturbed samples. Test results indicate that the soils at the site can generate significant pore pressures when shaken at levels expected to have occurred during the Kocaeli Earthquake. The mechanisms of the measured deformations are still ongoing with detailed numerical modeling of the site using the laboratory test results.

000011216 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011216 653__ $$aliquefaction, ground failure, fine-grained soils, pore pressure generation, earthquakes

000011216 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011216 720__ $$aOlgun, C.G.$$iSezen,  A.$$iKayali,  S.$$iMartin II,  J.R.$$iPolito,  C.P.$$iYildirim, H.
000011216 8560_ $$ffischerc@itam.cas.cz
000011216 8564_ $$s172375$$uhttps://invenio.itam.cas.cz/record/11216/files/04-01-0184.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 04-01-0184.
000011216 962__ $$r9324
000011216 980__ $$aPAPER