THEORY OF ONE-DIMENSIONAL CONSOLIDATION OF CLAYS WITH CONSIDERATION OF THEIR RHEOLOGICAL PROPERTIES

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The paper concerns the problem of one-dimensional consolidation for clays exhibiting creep under constant effective stress. A stress-strain-time relation relevant to the consolidation process is deduced, by assuming K_0-conditions, from the stress-strain-time theory developed by Murayama et al. (1974) and Sekiguchi (1974). A numerical solution to the mathematical equations governing the consolidation process is presented, and based on the predicted settlement-time factor relations a method of determining the coefficient of consolidation is proposed. Discussion is made of the influence of both the duration of secondary compression during the preceding load and the maximum drainage distance on the consolidation behavior of such clays during the following increment of loading. In addition, it is shown that there is reasonable agreement between the measured settlement and pore pressure dissipation-time curves and the predicted ones for laboratory consolidation tests on specimens of a saturated clay for each of pressure increment ratios of 0.1,0.5 and 1.0.
社団法人地盤工学会の論文
1976-03-15