chapter  66
A method for predicting the undrained shear strength from piezocone dissipation test
ByE. Odebrecht, F.M.B. Mantaras, F. Schnaid
Pages 6

A method developed to correlate the measured piezocone dissipation excess pore-water pressure (Δu) to the soil undrained shear strength (su ) has been presented by Mantaras et al. (2015). In the proposed approach, a mathematical closed form solution was derived linking the ratio of normalized maximum excess pore pressure and the normalized undrained shear strength. In the preset paper the predicted su values obtained from the from dissipation tests are calibrated against field vane shear strength in both normally consolidated and lightly overconsolidated soils (OCR of up to 5). Data from 5 cm2 and 10 cm2 piezocone cross section areas are evaluated to demonstrated that reported results are consistent and encourage the use of the method in engineering practice.