Abstract
This study is about the correlation between the Swedish weight sounding test value (Nsw) and the standard penetration test (N value). As a result of the statistical analysis, the following facts become carified. The variations between the N value and the Nsw indicate a tendency that the variations become larger as the values are measured at shallower points of the ground and they become extremely large in a range in which the Nsw is 40 or less. Based on this results, we proposed the correction method on relation between Nsw and N value in a range of Nsw≦40.