This paper outlines the methodology for investigating the performance of soil foundation systems utilizing Geotextile Encased Columns (GECs) subjected to reloading. The study involves multiple centrifuge tests at Deltares geotechnical facilities, employing physical models optimized for efficient testing within a constrained time frame and minimal disturbance to the clay model. Sensors track the development of load distribution and settlement of both the columns and surrounding soil. Additionally, the response of pore water pressures to surcharge load changes are monitored.
The research examines changes in the stiffness of columns and surrounding soil during loading, unloading and reloading phases, and their possible impact on the load-bearing behaviour of GEC-based foundation systems. The insights gained are relevant for infrastructure projects subjected to load changes, such as partial embankment removal for additional foundation works. This study anticipates providing valuable insights into the reloading response of GEC foundation systems.
5th European Conference on Physical Modelling in Geotechnics (ECPMG2024)
Geotechnical infrastructure