불교란 점토 압밀시험 결과의 새로운 해석법

Abstract

In this study, the results of a series of consolidation test for undisturbed Ariake clay in Japan were analyzed by three methods, e-log p (e: void ratio, p: consolidation pressure), log e-log p and n-log p (n: porosity). Moreover, the characteristics of each analysis method were studied. For undisturbed Ariake clay, the log e-log p and the n-log p relationships can be found as two groups of straight lines of different gradients, but both the elastic consolidation and plastic consolidation regions of e-log p relationship are expressed as a curve. In this paper, the porosity of consolidation yield ny, consolidation yield stress py, and the gradient of the plastic consolidation region Cp were represented by the log e-log p method, and nc, pcn and Ccn were represented by the n-log p method. The meaning and the relationships of each value were studied, and the interrelationships among compression indices i.e. Ccn, Cp and Cc are obtained from each analysis method as a function of initial porosity n0.