000004943 001__ 4943
000004943 005__ 20141119144607.0
000004943 04107 $$aeng
000004943 046__ $$k2002-06-02
000004943 100__ $$aYang, Zhaohui
000004943 24500 $$aOPTIMIZATION FOR CALIBRATION OF LIQUEFACTION CONSTITUTIVE MODEL

000004943 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004943 260__ $$bColumbia University in the City of New York
000004943 506__ $$arestricted
000004943 520__ $$2eng$$aLarge sets of soil experimental data (field and laboratory) are becoming increasingly available for calibration of soil constitutive models. A challenging task is to calibrate a potentially large number of model parameters to satisfactorily match many data sets simultaneously. This calibration effort can be facilitated by optimization techniques. In this paper, an existing numerical optimization computer code is employed in calibrating a plasticity model developed for liquefaction simulation. Calibration is based on experimental data from a dynamic mild-slope liquefaction centrifuge experiment. The objective function is chosen to minimize the difference between computed and observed liquefaction-induced lateral spreading. The optimized computational results show a reasonable agreement with the experimental counterparts. In addition, a parametric study is conducted to demonstrate the effectiveness of, and certain subtleties associated with numerical optimization techniques.

000004943 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004943 653__ $$aOptimization, Liquefaction, Sand, Constitutive Model, Calibration.

000004943 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004943 720__ $$aYang, Zhaohui$$iElgamal, Ahmed
000004943 8560_ $$ffischerc@itam.cas.cz
000004943 8564_ $$s741638$$uhttps://invenio.itam.cas.cz/record/4943/files/591.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004943 962__ $$r4594
000004943 980__ $$aPAPER