Secondary Compression Behavior in Standard Consolidation Tests

概要

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One-dimensional consolidation analysis is described for predicting the consolidation time curve of clays exhibiting secondary compression during primary consolidation. The constitutive soil model is based on the equation governing the secondary compression rate of the decrease in void ratio. This model uses four parameters, namely, C_c, C_c, C_α and C_v, that can be easily determined or assumed from conventional standard oedometer test results. To check the validity of the proposed soil model, the consolidation time curves observed in oedometer specimens are compared with those predicted by the analysis. A satisfactory agreement can be obtained between the computed behavior and oedometer observations. In addition, it is shown that the void ratio rate due to secondary compression during primary consolidation varies by approximately two times its final value before the application of the next loading increment.
東海大学の論文