Influence of Stratigraphic Variability and Ground Motion Properties on the Effectiveness of Dense Granular Columns as Liquefaction Mitigation for Structures

This research aims to investigate the seismic performance of Dense Granular Columns (DGCs) used to mitigate liquefaction in sites with complex, stratigraphically variable soil conditions. Using fully-coupled, 3D, effective stress, nonlinear dynamic finite-element analyses, validated with centrifuge experimental data, this study evaluates how varying soil stratigraphy and mitigation properties affect the performance of DGCs and their impact on foundation and structural behavior. The dataset includes detailed numerical simulations that capture a range of critical parameters such as soil properties, foundation characteristics, DGC configurations, and ground motion characteristics. This comprehensive dataset is designed to aid in understanding the interactions between mitigation strategies, soil-structure systems, and ground motion characteristics, providing valuable insights for improving liquefaction mitigation practices.