An Electrokinetic Testing Apparatus for Undisturbed/Remoulded Soils under In-Situ Stress Conditions

摘要

In this paper, the design and construciton of an apparatus for the study of electrokinetics are presented in detail. The apparatus is capable of both applying a designawted effective stress to a soil sample and measuring the volume change and pore pressure during the electrokinetic testign. The results of a high voltage electrokinetic test on a remolded natural clay sample are reported to illustrate the operation of the apparatus and to study the mechanism of high voltage electrokinetics. During the 91 day test period of, including the application of a high voltage (-10 kV to -12 kV) for 51 days via insulated electrodes, the volume and pore pressure changes were negligible.