Granular Trenches and Stone Columns as Ground Improvement Techniques — Case Histories of Field Applications

Vast areas of Deposits of Soft clays and loose sands is a common occurrence generally in all the countries particularly in the Coastal towns of the State of Andhra Pradesh, India. The utility of these deposits for founding structures becomes vital in view of the enormous land cost and their existence in developed areas. The structures resting on these deposits will be subjected to many problems as these deposits possess very low insitu strength. Appropriate ground improvement technique, supported by quality assurance tests after implementation of technique in the field will be a better solution in problematic soils. The paper aims in presenting the field applications of Granular Trenches and Stone Columns for the construction of Bus stations at three different regions