On the applicability of in situ soil probings togeological analyses

Abstract

Examples of geoengineering methods (static and dynamic probings) that can be applied to analyses of geological environments are presented. The potential is shown by the results of the determination of the values of the soil-density index (ID), the soil-behaviour index (Ic), the constrained modulus (M), the over consolidation ratio (OCR) and their vertical changes. The values obtained for ID and Ic facilitate the determination of layers with a specific character. This is demonstrated for several a eolian and glacial deposits in Poland. The application of static probings to the analyses of changes in OCR and M made it possible to identify several depositional phases and the effect of post depositional processes. Usages of the probings can significantly contribute to the interpretation of palaeo-environments (e.g. in the context of geostatistical models), but the results obtained should be handled cautiously.