Abstract
Geotechnical engineers worldwide practice variety of in-situ techniques to obtain the physical and engineering properties of soil. Electric piezocone, which is an advanced version of cone penetrometer, is capable of measuring cone resistance, sleeve friction and penetration pore pressure. The piezocone test data not only provide valuable information on soil types but are also useful in deriving correlations with the engineering properties of soil for the purpose of analysis and design of foundations. In a view to establish a region-specific correlation between piezocone penetration resistance and soil properties, piezocone tests (CPTu), marine borings, and SPT tests were carried out at seven locations off Chennai, on the east coast of India. CPTu data was used for classifying soil; henceforth expounded that a reasonable classification of soil can be done using cone resistance, sleeve friction, and penetration pore pressure. The available charts to find out the drained shear strength from CPTu data was also verified for the region-specific use. Correlation between cone resistance ( q c ), and N-value was established and compared with existing recommendations.
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