ABSTRACT
For many geotechnical problems, a good knowledge of the dynamic soil behavior is important. However, physical measurements can be very difficult. Static and dynamic compaction is still an essential method for improving soils. In the contribution, the Digital Image Correlation (DIC) method was used to evaluate static and dynamic compaction processes in model tests. In addition, with the experiments numerical models using a hypoplastic material law have been validated. The experimental results confirm well-known theories of the fundamental deformation behavior of sand. Using acceleration sensors in the sand, the DIC results recorded by a high-speed camera could be interpreted at specific points. The results show correlations between soil compaction and the propagation of wave fronts. The DIC method allows a detailed and coherent evaluation in a transparent section plane. In addition to compaction processes, the method could be suitable for understanding of mechanical processes in various dynamic geotechnical problems.
