Dynamic replacement – practical aspects of application

Dynamic replacement is one of the methods of soil reinforcement in geotechnical engineering. The specific nature of the technology (forming columns of aggregate with heavy rammers dropped from a height of up to 25 m) can create problems in terms of design, execution, and acceptance. The presentation will cover issues related to driven columns in terms of their possible applications (types of structures), design guidelines (soil and water conditions, column shape and diameters, calculations), execution (selection of forming techniques), and acceptance (types of tests). The presentation will be supplemented with selected examples of reinforcements.

Graduate of the Faculty of Civil Engineering at the Silesian University of Technology (2001). In 2001–2003, he worked in a design office specializing in steel and reinforced concrete structures. Since 2003, he has been associated with the Silesian University of Technology. His scientific interests include ground reinforcement methods, in particular the dynamic replacement method, on which he defended his doctoral thesis (2008) and habilitation thesis (2020). He developed dynamic replacement in the areas of, among others: the impact of soil and water conditions and forming techniques on the shape of the columns obtained, the impact of column forming on the surrounding soil, and the interpretation of test load results. Currently working on numerical models of column forming in soil.
Supervisor of over 100 bachelor’s and master’s theses.
In his engineering work, he determines the causes of damage to buildings in the form of opinions and expert reports (over 100 cases in which the damage was geotechnical in nature).
Currently serving as secretary of the Polish Geotechnical Committee (since 2024). In 2021–2024, chairman of the Silesian Branch of the Polish Geotechnical Committee.
In 2023, chair of the organizing committee of the 19th National Conference on Soil Mechanics and Geotechnical Engineering and the 8th National Conference of Young Geotechnical Engineers.