Engineering Commons^™

Piezocone Penetration Testing Device, Chung R. Song, Benyam M. Bekele, Brian Sawyer

Nebraska Department of Transportation: Research Reports

Hydraulic characteristics of soils can be estimated from piezocone penetration test (called PCPT

hereinafter) by performing dissipation test or on-the-fly using advanced analytical techniques. This

research report presents a method for fast estimation of hydraulic conductivity of overconsolidated soils

based on the piezocone penetration test. The method relies on an existing relationship developed for the

determination of hydraulic conductivity of normally consolidated soils on-the-fly. The present research

revises this relationship so that it can be applied for overconsolidated soils by incorporating a proper

correction equation. The revised relationship provides a pore pressure representing the hydraulic

conductivity of a hypothetical “equivalent …