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Postliquefaction Undrained Shear Behavior of Sand-Silt Mixtures at Constant Void Ratio

Sitharam, TG and Dash, HK and Jakka, Ravi S (2013) Postliquefaction Undrained Shear Behavior of Sand-Silt Mixtures at Constant Void Ratio. In: INTERNATIONAL JOURNAL OF GEOMECHANICS, 13 (4). pp. 421-429.

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Official URL: http://dx.doi.org/ 10.1061/(ASCE)GM.1943-5622.0000...

Abstract

A detailed study on the postliquefaction undrained shear behavior of sand-silt mixtures at constant void ratios is presented in this article. The influence of different parameters such as density, amplitude of cyclic shear stress, and drainage conditions on the postliquefaction undrained response of sand-silt mixtures has been investigated, in addition to the effect of fines content. The results showed that the limiting silt content plays a vital role in the strength of the soil under both cyclic and monotonic shear loading. Both the liquefaction resistance and postliquefaction shear strength of the soils are found to decrease with an increase in the fines content until the limiting silt content is reached. However, further increase in the silt content beyond the limiting silt content increases the liquefaction resistance as well as the postliquefaction shear strength of the soils. It is also observed that these variations on the liquefaction and postliquefaction resistance of soils are closely related to the variations in relative density. (C) 2013 American Society of Civil Engineers.

Item Type: Journal Article
Additional Information: Copyright of this article is belongs to ASCE-AMER SOC CIVIL ENGINEERS
Keywords: Soil mechanics; Saturated soils; Soil properties; Shear strength; Dynamic properties; Soil liquefaction; Sand (soil type); Mixtures; Soil mechanics; Saturated soils; Soil properties; Shear strength; Dynamic properties; Liquefaction
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Depositing User: Id for Latest eprints
Date Deposited: 03 Sep 2013 10:23
Last Modified: 03 Sep 2013 10:30
URI: http://eprints.iisc.ac.in/id/eprint/47032

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