swell and undrained shear strength. These relationships were found
to be statistically significant according to the Student's t-test with 95%
safety. Figs. 7 and 8, respectively, show the plots of the liquidity index
versus swell percent and undrained shear strength.
Strong correlations between the liquidity index and both the
undrained shear strength and percent swell have been demonstrated.
Because the undrained shear strength depends on stress history (or
OCR) and the current effective consolidation stress, it is interesting to
investigate the relationships of the OCR with each of the liquidity
index, percent swell and undrained shear strength. Plots of OCR
versus liquidity index, percent swell and undrained shear strength are
presented in Figs. 9–11, respectively, and regression equations for
swell and undrained shear strength. These relationships were foundto be statistically significant according to the Student's t-test with 95%safety. Figs. 7 and 8, respectively, show the plots of the liquidity indexversus swell percent and undrained shear strength.Strong correlations between the liquidity index and both theundrained shear strength and percent swell have been demonstrated.Because the undrained shear strength depends on stress history (orOCR) and the current effective consolidation stress, it is interesting toinvestigate the relationships of the OCR with each of the liquidityindex, percent swell and undrained shear strength. Plots of OCRversus liquidity index, percent swell and undrained shear strength arepresented in Figs. 9–11, respectively, and regression equations for
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