Laboratory-Based Correlation between Liquefaction Resistance and Shear Wave Velocity of Sand with Fines

Abstract

This paper presents the results of a laboratory investigation into the effect of non-plastic fines on the correlation between liquefaction resistance and the shear wave velocity of sand. For this purpose, undrained stress-controlled cyclic triaxial and bender element tests were performed on clean sand and its mixtures with non-plastic silt. It is shown that the correlation between liquefaction resistance and shear wave velocity depends on fines content and confining effective stress. Based on the test results, correlation curves between field liquefaction resistance and overburden stress corrected shear wave velocity for sand containing various contents of fines are derived. These curves are compared to other previously proposed by field and laboratory studies.

Applicability of soil‐type index for shear wave velocity‐based liquefaction assessment

“…The thicker solid curves at each figure signify the (CRR) 7.5 -V s1 curves determined in this study. It should be reminded that some of the CRR-V s1 relationships shown in the figures are based primarily on tests performed on soil samples in the laboratory, [9][10][11][12][13][14][16][17][18][19][20] while the others are based primarily on field case histories. [2][3][4][5]7,8,64 At each figure, the existing (CRR) 7.5 -V s1 curves may reflect dissimilarities due to the differences in sedimentation history, mineralogy, grading characteristics of the soils, and testing conditions.…”

“…Several laboratory-based V s -liquefaction resistance correlations have also been reported (e.g., [9][10][11][12][13][14][15][16][17][18][19][20] ). However, the results of different studies show somewhat contradictory behavior.…”

“…The fine content-based CRR-V s1 correlations given above are not well constrained due to their differences in some features, such as grading, mineralogy, fabric, aging, and stress history, as well as the density index parameter employed. 20 This topic has also been studied by some researchers making further separations with regard to effective stress, soiltype, and aging (e.g., 13,14,16,18 ). For instance, Baxter et al 14 recommended laboratory-based CRR-V s1 correlations for silt, while Ahmadi and Paydar 18 suggested laboratory-based CRR-V s1 correlations for two different sands (Babolsar sand and Firoozkooh sand) and other types of silty sands, with FC more than 35%.…”

“…indicated that the CRR‐V s relationship does not show a meaningful change with a variation of fine contents. The fine content‐based CRR‐V s1 correlations given above are not well constrained due to their differences in some features, such as grading, mineralogy, fabric, aging, and stress history, as well as the density index parameter employed 20 …”

Determination of Empirical Correlations between Shear Wave Velocity and Penetration Resistance in the Canakkale Residential Area (Turkey)

“…It is one of the most important input parameters for representing the stiffness of the soil layers [1][2][3][4][5][6][7][8]. Additionally, important engineering features in the ground, such as the small-strain shear modulus (G max ), can be determined [9][10][11][12][13][14][15][16]. The small-strain shear modulus is calculated according to the following equation:…”