caa a22 4500 467930961 CHVBK 20180406152943.0 cr unu---uuuuu 170328e20060801xx s 000 0 eng 10.1007/s10706-005-7723-x doi (NATIONALLICENCE)springer-10.1007/s10706-005-7723-x Three-dimensional finite element modelling of stress relaxation tests in anisotropic clayey medium: direct problem and back analysis [Elektronische Daten] [Richard Giot, Albert Giraud, Francoise Homand] This paper deals with a new strategy for initial stress identification by stress relaxation methods, coupled with finite element calculation, and applied to the overcoring test. The back-analysis of such a test uses an inversion method which consists in the minimisation, with a gradient-based algorithm, of a cost functional of least-squares type, which quantizes the difference between measured and computed strains. The computed strains are assessed by three-dimensional finite element modellings of the overcoring test. The inversion methodology is applied to a recent in situ overcoring test performed at Mont Terri laboratory, Switzerland. The inversion gave good results and allows us to validate the inversion methodology. The constitutive law considered for this application is transverse isotropic elasticity but the inversion method developed is applicable to most constitutive laws and every kind of in situ test. Springer, 2006 identification nationallicence inversion nationallicence overcoring nationallicence sensitivity analysis nationallicence stress relaxation nationallicence stress tensor nationallicence Giot Richard LAEGO-ENSG, BP40, F-54501, Vandoeuvre-lès-Nancy Cedex, France aut Giraud Albert LAEGO-ENSG, BP40, F-54501, Vandoeuvre-lès-Nancy Cedex, France aut Homand Francoise LAEGO-ENSG, BP40, F-54501, Vandoeuvre-lès-Nancy Cedex, France aut Geotechnical & Geological Engineering Kluwer Academic Publishers 24/4(2006-08-01), 919-947 0960-3182 24:4<919 2006 24 10706 https://doi.org/10.1007/s10706-005-7723-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10706-005-7723-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Giot Richard LAEGO-ENSG, BP40, F-54501, Vandoeuvre-lès-Nancy Cedex, France aut NATIONALLICENCE 700 1- Giraud Albert LAEGO-ENSG, BP40, F-54501, Vandoeuvre-lès-Nancy Cedex, France aut NATIONALLICENCE 700 1- Homand Francoise LAEGO-ENSG, BP40, F-54501, Vandoeuvre-lès-Nancy Cedex, France aut NATIONALLICENCE 773 0- Geotechnical & Geological Engineering Kluwer Academic Publishers 24/4(2006-08-01), 919-947 0960-3182 24:4<919 2006 24 10706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer