A consolidation model was established for vacuum preloading-electroosmosis combined single prefabricated vertical drain (PVD), which is used to consolidatelow-permeable soil mass. The model was derived in terms of “equalstrain hypothesis”and one-dimensional electroosmosis consolidation theory. The analytical solutions to the model are able to predict the primary consolidation of soil, including pore pressure, consolidation degree as well aswater discharge volume. A laboratory apparatus was set up to examine the consolidation of kaolin which was subjected to the combined consolidation process. The test resultswere compared against analytical results to verify the predictabilityof the consolidation model. It is indicated that vacuum preloading-electroosmosis combined processis able to facilitate the consolidation of the kaolin and the analytical results are in good agreement with test results.
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