Preloading, vertical drains, deep compaction of cohesionless soils: vibrofloatation, vibratory probes, compaction piles, dynamic compaction, blasting, grouting: permeating grouting, compaction grouting, chemical grouting, jet grouting, deep mixing. Soil reinforcement: Soil nailing, micro piles, reinforced earth, stone columns, lime columns, geotextiles, freezing, electro-osmosis.