The papers in this volume cover topics in the field of geoengineering in arid lands. Topics include: coupled thermo-hydro-mechanical processes in geomechanics; sediment formation in marine environment; soil stability and stabilization techniques; sand dune transport; unsaturated soil behaviour and modelling; soil-structure interaction; foundation failures; applied numerical analysis in geotechnical engineering; assessment of subsurface polluted sites via geophysical, geotechnical, and geochemical techniques; organic and inorganic pollutant transport in subsurface environment; soil-pollutant interactions and processes; seawater intrusion into coastal aquifers; environmental management of polluted sites and medical waste; role of regulatory agencies in risk management; gas utilization from landfills; treatment of polluted soils and/or solid wastes by utilization of physical, chemical, and electrochemical techniques.