Parameterbestimmung in der Geotechnik mit Hilfe Inverser Problemstellungen

摘要

This article deals with the formulation and solution of inverse problems as they occur within the evaluation of soil mechanics laboratory tests. First the difficulties of evaluating these tests are shown which are the consequence of the special material 'soil'. Then ideal conditions for soil mechanics laboratory tests are defined, which generally should be obtained or achieved as far as possible. Direct and inverse problems are defined briefly and some special inverse problems are illustrated as they occur from practical geo-technical problems in situ. Formulation and solution of direct and inverse problems are discussed exemplary by means of a simple soil mechanics standard laboratory test. Finally, it is shown why laboratory tests should be evaluated preferably by optimization processes and how this special approach could be used to improve constitutive models and laboratory experiments.