Earthquake-induced ground failures such as liquefaction and landslides are among the most damaging natural hazards, threatening urban areas, infrastructure, and vital facilities worldwide. Understanding and predicting these events is especially challenging because soil mixtures respond complexly under cyclic and dynamic loading, with fines, particle morphology, and fabric significantly influencing strength degradation and pore pressure buildup. Despite extensive research, the fundamental mechanisms behind cyclic mobility, static liquefaction, and post-failure deformations remain debated.
Recent advances in particle-based numerical methods, such as the Discrete Element Method (DEM), the Material Point Method (MPM), and Smoothed Particle Hydrodynamics (SPH), open new opportunities to study soil behaviour across multiple scales and to simulate dynamic processes from grain interactions to slope failures. Combined with laboratory and field observations, these methods are increasingly utilised to connect micromechanical insights with hazard-focused modelling.
This session invites contributions that address complex soil structures and their cyclic responses, earthquake-induced landslides, static liquefaction, and the application of particle-based and other advanced numerical methods in geohazard analysis. We particularly welcome interdisciplinary perspectives that connect geotechnical mechanics, seismology, numerical modelling, and hazard assessment to enhance the predictive understanding of earthquake-induced ground failure.