Sand response to a large number of loading cycles under zero-lateral-strain conditions: Evolution of void ratio and small-strain stiffness

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Abstract

Geotechnical structures often experience a large number of repetitive loading cycles. This research examines the quasi-static mechanical response of sands subjected to repetitive loads under zero-lateral-strain boundary conditions. The experimental study uses an automatic repetitive loading frame operated with pneumatic pistons. Both vertical deformation and shear wave velocity are continuously monitored during 10 000 repetitive loading cycles. The void ratio evolves towards the terminal void ratio e T as the number of load cycles increases. The terminal void ratio e T is a function of the initial void ratio e 0 and the stress amplitude ratio
Original languageEnglish (US)
Pages (from-to)501-513
Number of pages13
JournalGeotechnique
Volume69
Issue number6
DOIs
StatePublished - Jun 27 2018

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