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This Special Issue (SI) collects fourteen articles published by leading scholars of numerical modeling in civil and mining geotechnical engineering. There is a good balance in the number of published articles, with seven in civil engineering and seven in mining engineering. The software used in the numerical modeling of these article varies from numerical codes based on continuum mechanics to those based on distinct element methods or mesh-free methods. The studied materials vary from rock, soil, and backfill to tailings. The investigations vary from mechanical behavior to hydraulic and thermal responses of infrastructures varying from pile foundations to tailings dams and underground openings. The SI thus collected a diversity of articles, reflecting the state-of-the-art of numerical modeling applied in civil and mining geotechnical engineering.

Technology: general issues --- History of engineering & technology --- near-surface thick deposit --- surface subsidence --- numerical simulation --- unmanned aerial survey --- accurate model --- railway ballast fouling --- ballast degradation --- micro-mechanical parameters --- shear strength --- large diameter bored pile --- hyperparameters --- supervised machine learning --- finite element method --- parametric study --- load transfer --- failure mechanism --- geothermal heat exchangers --- permafrost --- thaw settlement --- sustainability --- embedded beam elements --- finite element --- mesh sensitivity --- soil-structure interaction --- deep foundation --- 3D modelling --- fluid fine tailings --- dewatering --- modelling --- seasonal weathering --- freeze–thaw --- evaporation --- mining backfill --- compressibility --- constitutive models --- numerical modeling --- plasticity --- critical state soil model --- modified Cam Clay model --- model normalization --- precomputation --- incompatibility --- rock --- plastic deformation --- goaf-side entry --- stability of surrounding rock --- pillar size optimization --- confined water --- paste filling mining --- filling step --- advancing distance --- floor failure --- tailings dam --- impacting force --- kinetic energy --- smoothed particle hydrodynamics (SPH) --- 3D nonlinear yield criterion --- elastoplastic model --- circular opening --- backfill --- FLAC3D --- pore water pressure --- hydraulic conductivity --- alternative method --- numerical analyses --- unsaturated soil --- n/a --- freeze-thaw