Abstract
The aim of this research is to present a correlation between the measured coefficient of variation of lateral subgrade reaction with depth (f) and both recommended values in codes and the elastic modulus of soil. In order to achieve that aim, four 3D FEM models were developed to simulate four full-scale, non-working pile load tests constructed in different soil profile sites. The soil properties in the models (including the elastic modulus) were calibrated using experimental measurements. Besides that, both experimental and recommended values of (f) were estimated. Comparing these values showed that the experimental values are about (6 to 12) times the recommended ones for granular soils and increase to about 30 times for intact rock. Finally, a non-linear regression was used to develop the correlation formula. The results showed perfect logarithmic relation between (Es) & experimental values of (f).
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