Abstract
This paper describes the vane shear strength characteristics of ultra soft clay ground during self-weight consolidation in centrifugal flight. A series of vane shear tests is carried out in the laboratory floor after centrifugal flight. An effect of stress relief in the process from centrifugal field to gravity field on the shear strength is also discussed.
As a conclusion, the relationship between vane shear strength and water content of its part of clay ground is unique during the self-weight consolidation. Applying the equivalent effective stress to the test results of laboratory floor, the relationship between vane shear strength and effective stress is equivalent to that of centrifugal field.
