Abstract
In-situ permeability tests were conducted in peaty soft ground in Hokkaido and oedometer tests on undisturbed peat were performed, to investigate the permeability of peat and its anisotropy.
This study has revealed that the coefficient of permeability of peat from the oedometer test gives lower value of approximately 1/10 to 1/30, as compared with the results from the in-situ permeability tests, which indicate the average value of peat layer. The coefficient of permeability of peat and organic clay depends strongly on consolidation pressure and then “Ck” value increases with their initial void ratio or ignition loss. On the anisotropy of the permeability of peat, almost no dependency of consolidation pressure is found.
