Correlation between Cone and Standard Penetration tests

Extensive application of CPT in recent years and SPT-based experience of soil behavior has brought to attention the importance of correlation between these tests. In this paper a review on available correlations has been carried out. Also influence of parameters such as friction ratio, pore water pressure, fines content and mean particle size on these correlations have been studied in detail. Employing a CPT-SPT database collected from two sites and using evolutionary regression method new correlations have been proposed. Although the new correlations do not provide a precise approximation of the qc/N60 ratio but considering the inherent variability of penetration tests and soil behavior, it presents a good estimation of this ratio

کلیدواژه ها:

SPT ، CPT ، Correlation ، Penetration Tests ، Regression