PREDICTION OF THE SHEAR WAVE VELOCITY VS FROM CPT AND DMT

The paper examines the correlations to obtain rough estimates of the shear wave velocity V-S from non-seismic dilatometer tests (DMT) and cone penetration tests (CPT). While the direct measurement of V-S is obviously preferable, these correlations may turn out useful in various circumstances. The experimental results at six international research sites suggest that the DMT predictions of V-S from the parameters I-D (material index), K-D (horizontal stress index), M-DMT (constrained modulus) are more reliable and consistent than the CPT predictions from q(c) (cone resistance), presumably because of the availability, by DMT, of the stress history index K-D.