Abstract
ABSTRACT This experimental research aims to evaluate the effect of the degree of saturation and relative density of the liquefaction resistance of Chlef sand. A series of undrained triaxial was carried out at an initial relative density of 12% and 75% corresponding to a loose and dense state, respectively, and under a confining pressure of 100 kPa for Skempton coefficients of 22%, 45% and 92%. The test results show that an increase of degree of saturation leads to a decrease of the shear strength of the sand. However, the maximum shear strength decreases linearly and the residual shear strength decreases logarithmically with the increase of the degree of saturation, while the excess pore pressure increases logarithmically with the increase of the degree of saturation (B). The internal friction angle decreases logarithmically with the increase of the degree of saturation.
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