Abstract
From statistical analyses of accumulated data on dynamic characteristics of various soil deposits measured by means of seismic exploration, it has been found that shear moduli for small shear strain level are well correlated with N-values of the standard penetration test, and that their interrelation may be expressed by a simple, approximate Eq. G=1200N0.8 (tons/sq. meter) regardless of soil types and depths from the ground surface. A few matters related to dynamic Poisson's ratios of soil deposits are also discussed from a statistical viewpoint.
