ABSTRACT

The specific objectives of the research reported in this chapter were to investigate the effect of disturbance on the swelling behavior of Ankara Clay, to estimate the depth of the active zone, to develop a simple technique based on water content of soil-water mixture for predicting degree of swelling, to propose predictive models for swelling pressure and percent swell using index properties of the clay, to make a synthesis of observed damage details, and to construct swell pressure and percent swell maps. The latter would provide information on the swelling potential of the clay for engineers, city planners, and local authorities. The basis for site selection and climatic and geological conditions, were discussed. The physical and mineralogical properties were obtained, and laboratory-swelling tests were conducted for direct estimation of swell potential. A simple laboratory test method to predict swelling potential was also suggested. The data obtained was statistically analyzed, to determine if any single property or a group of properties could be used for prediction of swelling potential. Finally, details of damage to structures in the light of environmental conditions, site observations, and laboratory-derived data were discussed, and swelling potential maps for the metropolitan area were constructed.