Coefficient of Secondary Consolidation of Peats

Matsuo, Koichiro; Yamaguchi, Haruo; Ohira, Yoshinori

doi:10.3208/sandf1972.26.139

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…Oedometer tests were done against 5 soil (4 highly organic soil and 1 silty clay). While the linear gradient of the curve's latter part is what is conventionally called as the rate of secondary consolidation, we call it as the rate of long-term settlement for distinguishing from those and obtained each value by defining formulas (3) to (6) since results are interpreted here by using natural strain. The rate of long-term settlement (C Ｈｔ ) in Fig.…”

Section: Resultsmentioning

confidence: 99%

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A Prediction Method for Long-Term Settlement of Higly Organic Soft Soil

Kamao¹

2019

GEOMATE

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One of the prediction method of the long-term settlement of soft clay is to predict it by defining the linear slope of the latter half of the s-log t curve, as the rate of secondary consolidation. This method has some disadvantages, because the slope of the straight line is depending on how to set the origin of elapsed logarithmic time, and how to determine the initial thickness of soil layer, and so on. The author carried out a series of laboratory experiments using oedometer apparatus against some kinds of highly organic soil and one silty clay which were sampled in Japan. From the experimental results, the author proposed a prediction method for long-term settlement of highly organic soil based on the isotache theory using natural strain which can be used conveniently by eliminating previous problems. To confirm the applicability of the proposed prediction method, some field measurement data were used, constructed in Japan. They were good correlations, and the applicability of proposed method was proved in this study.

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Section: Resultsmentioning

confidence: 99%

“…Research was conducted by Ohira et al [4], [5], Matsuo et al [6] and Kogure [7] regarding longterm settlement prediction methods, which is the subject of the present paper; the hyperbolic method, √t hyperbolic method, s-log t method, etc. have been proposed and are currently used in design practice.…”

Section: Introductionmentioning

confidence: 99%