Identification of soil parameters by inverse analysis

This paper presents a methodology for identifying soil parameters that take s into account different constitutive equations. The procedure, applied her e to identify the modified Cam-Clay parameters from a pressuremeter curve, is based on an inverse analysis approach, which consists of minimizing the function representing the difference between the experimental data and the data obtained by integrating the model along the loading path in in-situ te sting. The numerical process implemented here is based on the interaction o f two numerical tools; an optimization code (SiDoLo) and a general finite e lement code (CESAR-LCPC). (C) 2000 Elsevier Science Ltd. All rights reserve d.