The book provides an overview of the basic concepts of ground modifications to difficult soils in a logical and illustrative way. It teaches how to apply alternative solutions to difficult foundation problems and evaluates their effectiveness before and after construction. The text is supported by a large number of examples, review and multiple choice questions, as well as practical problems. The book is intended to serve as a textbook for undergraduate and postgraduate students of Geotechnical, Transportation, Hydraulic and Environmental Engineering, and a reference work for pracising civil engineers. Contents Introduction Mechanical Modifications Preloading and the Use of Vertical Drains Geosynthetics The Premixing Method Modification by Grouting In-situ Ground Reinforcement Modelling of Soil Reinforcement Annexure Key Features A well researched textbook on ground improvement techniques Conforms to the syllabi of all Indian universities where the subject is taught Written by an expe