抄録
The objective of the present research is to evaluate the characteristics of secondary consolidation of the stiff Pleistocene clay from natural deposit performing the series of the laboratory oedometer test in which the step loading is varied for the different load incremental ratios and loading period. The study has focused on the secondary compression index of soils in the normally consolidated region and in the loading stage spanning the consolidation yielding stress where it shows tremendous increase of strain and considerable turnoff for the secondary compression. Together with this, the change of soil structure due to the long-term secondary compression of Pleistocene clay comparing the one by the conventional 24 hours consolidation, in terms of pore size distribution using the mercury intrusion porosimetry.
