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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

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The Special Issue book presents some works considered innovative in the field of geotechnics and whose practical application may occur in the near future. This collection of twelve papers, in addition to their scientific merit, addresses some of the current and future challenges in geotechnics. The published papers cover a wide range of emerging topics with a specific focus on the research, design, construction, and performance of geotechnical works. These works are expected to inspire the development of geotechnics, contributing to the future construction of more resilient and sustainable geotechnical structures.

ground improvement --- earth reinforcement --- geotextiles --- numerical analysis --- spatial TDR --- moisture content --- soil suction --- SWRC --- transient flow --- excess pore water pressure --- pond filling rates --- upstream tailings dam --- AdaBoost --- support vector machine --- k-nearest neighbor --- random forest --- rockfill materials --- shear strength --- cement-treated soil --- cellulose nanofibre --- strength --- permeability --- sulfate-bearing soil --- ettringite --- soil stabilization --- gypseous soil --- calcium-based stabilizer --- non-calcium-based stabilizer --- biopolymer --- soil stabilisation xanthan gum --- sandy soil --- cement --- soil contamination --- oil field --- SEM --- treatment --- soil-cement mixtures --- fibers --- mechanical properties --- machine learning --- artificial neural networks --- soil improvement --- multiwall carbon nanotubes (MWCNTs) --- unconfined compressive strength tests --- surfactant --- quality control --- quality assurance --- deep mixing method --- cemented iron ore tailings behaviour --- filtered tailings stacking --- Portland cement --- compaction --- n/a

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Safety and sustainability are becoming ever bigger challenges for the mining industry with the increasing depth of mining. It is of great significance to reduce the disaster risk of mining accidents, enhance the safety of mining operations, and improve the efficiency and sustainability of development of mineral resource. This book provides a platform to present new research and recent advances in the safety and sustainability of mining. More specifically, Mining Safety and Sustainability presents recent theoretical and experimental studies with a focus on safety mining, green mining, intelligent mining and mines, sustainable development, risk management of mines, ecological restoration of mines, mining methods and technologies, and damage monitoring and prediction. It will be further helpful to provide theoretical support and technical support for guiding the normative, green, safe, and sustainable development of the mining industry.

Technology: general issues --- History of engineering & technology --- top-coal caving mining --- process parameters --- decision model --- BP neural network --- similaritysimulation test --- time-dependent cohesion --- traction force --- deep-sea sediment --- tracked miner --- rheology --- cemented paste backfill --- curing conditions --- mechanical properties --- mathematical strength model --- AMD --- phytoremediation --- sulfate --- hydroponic experiment --- wetland plants --- ecological pollution --- tailings dam --- safety factor --- quantitative evaluation --- dynamic weight --- comprehensivediagnosis of health --- : rock formations --- surface subsidence law --- surface subsidence process --- 3D test device --- 3Dlaser scanning --- mine ventilation network --- wind speed sensors distribution --- air volume reconstruction --- independent cut set --- surface subsidence --- probability integration --- loess donga --- superimposed calculation --- additional displacement of slope mining slip --- : mining water hazard --- microseismic monitoring --- intelligent recognition --- feature extraction --- support vector machine --- classification model --- freeze–thaw cycles --- tailings --- mechanical behavior --- SEM --- MIP --- thick aeolian sand --- shallow buried thick seam --- overburden failure --- ground damage --- numerical simulation --- rock mechanics --- cyclic impact --- chemical corrosion --- axial compression --- strength degradation --- pipe transportation system test --- pressure loss --- random forest algorithm --- filling-aided design --- vibration signals --- neural network --- drilling state identification algorithm --- drilling depth --- monitoring-while-drilling method ---