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Effect of initial relative density on the post-liquefaction behaviour of sand

Rouholamin, M, Bhattacharya, Subhamoy and Orense, RP (2017) Effect of initial relative density on the post-liquefaction behaviour of sand Soil Dynamics and Earthquake Engineering, 97. pp. 25-36.

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Abstract

Understanding the behaviour of soils under cyclic/dynamic loading has been one of the challenging topics in geotechnical engineering. The response of liquefiable soils has been well studied however, the post liquefaction behaviour of sands needs better understanding. In this paper, the post liquefaction behaviour of sands is investigated through several series of multi-stage soil element tests using a cyclic Triaxial apparatus. Four types of sand were used where the sands were first liquefied and then monotonically sheared to obtain stress-strain curves. Results of the tests indicate that the stress-strain behaviour of sand in post liquefaction phase can be modelled as a bi-linear curve using three parameters: the initial shear modulus ( ), critical state shear modulus ( ), and post-dilation shear strain ( ) which is the shear strain at the onset of dilation. It was found that the three parameters are dependent on the initial relative density of sands. Furthermore, it was observed that with the increase in the relative density both and increase and decreases. The practical application of the results is to generate p-y curves for liquefied soil.

Item Type: Article
Subjects : Civil & Environmental Engineering
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
NameEmailORCID
Rouholamin, MUNSPECIFIEDUNSPECIFIED
Bhattacharya, Subhamoys.bhattacharya@surrey.ac.ukUNSPECIFIED
Orense, RPUNSPECIFIEDUNSPECIFIED
Date : 7 March 2017
Identification Number : 10.1016/j.soildyn.2017.02.007
Copyright Disclaimer : © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Liquefaction, multi-stage soil element test, post-liquefaction behaviour, saturated sand
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 28 Feb 2017 14:22
Last Modified : 06 Jul 2017 07:03
URI: http://epubs.surrey.ac.uk/id/eprint/813644

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