<p><p><strong>Reference(s):</strong></p><p><em>Fordham and Purcell (1991)<br>Ghandi et al. (1999)</em></p><p><strong>Method Summary</strong></p><p>Shear wave velocity can be measured by generating an impulse at the surface and measuring the shear wave velocity in an adjacent borehole (downhole measurements) or by generating an impulse in one borehole and measuring the shear wave velocity with a receiver in another borehole (cross-hole measurements). Cone penetrometers containing shear wave measuring instrumentation are available for downhole shear wave velocity measurements during CPT tests.</p><p><strong>Accuracy and Precision</strong></p><p>Shear wave velocity measurements are relatively accurate and precise, but the correlations to specific soil properties are not always accurate.</p><p><strong>Adequacy of Coverage</strong></p><p>Shear wave velocity measurements can be done in the same areas with the same number of measurements as CPTs or SPTs.</p><p><strong>Implementation Requirements </strong></p><p>Shear wave velocity measurements can be performed in conjunction with CPTs or standard borings.</p><p><strong>General Comments </strong></p><p>Shear wave velocity measurements can be used in all applications of blast densification.</p></p>