Abstract
One of the major steps for safe and optimum design of foundations is ultimate bearing capacity determination. Among commonly used approaches such as theoretical solutions, static analysis, and full-scale loading tests, employment of in situ records is realized as a supplementary tool for static analysis. Evaluating the bearing capacity of foundations from cone penetration test (CPT) data is one of the earliest applications of this test and includes two main approaches; direct and indirect methods. Direct CPT methods apply the measured values of cone bearing for bearing resistance with some modifications regarding scale effects, i.e., influence of foundation width to the cone diameter ratio. Indirect CPT methods employ friction angle and undrained shear strength values estimated from CPT data based on bearing capacity or cavity expansion theories.
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