Study on long-term large settlement behavior of clay ground related to clay structure failure and construction of its prediction theory

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It is reported that the observed values of the consolidation settlement of clay ground were larger than the values predicted by the existing consolidation theories. In this study, the newly developed consolidation tests were carried out on the naturally deposited clays under constant loading and cyclic loading to evaluate the skeleton structure of clay. It was clarified that the change in the skeleton structure of clay is influenced by the loading pattern and the destruction of the skeleton structure is larger under the cyclic loading than under the constant loading as the consolidation time goes by. Furthermore, the new consolidation model was established to express these settlement behaviors.