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The Effect of Preloading on the Cyclic Liquefaction Strength Measured in the Laboratory
Konstantinos Stamatopoulos
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DOI:10.17265/1934-7359/2024.06.002
Stamatopoulos and Associates, 5 Isavron Street, Athens 11471, Greece
The effect of preloading on the liquefaction cyclic strength was investigated by cyclic shear tests where horizontal shear stress oscillated about a zero mean value on sands with varying fines content and at varying prestress ratios, densities and vertical stresses. Test results showed a marked increase of the cyclic soil strength with the prestress ratio. The effect is more pronounced for the looser specimens. An empirical expression predicting this effect is proposed. This expression is validated from results of a field test.
Cyclic liquefaction, shear stress, field test.
Journal of Civil Engineering and Architecture 18 (2024) 269-275 doi: 10.17265/1934-7359/2024.06.002
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