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Smith et al_Geotechnique Letters_October 2019.pdf (860.48 kB)

Acoustic emission generated by granular soil-steel structure interaction

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journal contribution
posted on 2019-10-24, 10:04 authored by Alister SmithAlister Smith, Helen Heather-Smith, Neil Dixon, James FlintJames Flint, David Pennie
This study has established quantitative interpretation of acoustic emission (AE) generated by granular soil/steel structure interaction. This new knowledge will enable the evolution of soil/structure interaction behaviour to be interpreted from AE measurements. AE monitoring could now provide early warning of soil/structure system (e.g. buried pipelines, pile foundations and retaining structures) limit state failures in the field and enhance insights into element and physical model tests in the laboratory. Results from a programme of large direct-shear tests performed on granular soil/steel interfaces show that AE generation is influenced by the normal effective stress, mobilised shearing resistance and shearing velocity. Compression-induced AE activity in granular soil/steel systems is negligible until the current stress conditions exceed the maximum that has been experienced in the past. Relationships have been quantified between AE and normal effective stress, mobilised shearing resistance and shearing velocity, enabling quantitative interpretation of cyclic and accelerating soil/structure interaction behaviour from AE measurements.

Funding

EPSRC Fellowship (Listening to Infrastructure, EP/P012493/1).

History

School

  • Architecture, Building and Civil Engineering

Published in

Géotechnique Letters

Volume

10

Issue

2

Pages

119 - 127

Publisher

Thomas Telford

Version

  • AM (Accepted Manuscript)

Rights holder

© ICE Publishing

Publisher statement

This paper was accepted for publication in the journal Geotechnique Letters and the definitive published version is available at https://doi.org/10.1680/jgele.19.00065

Acceptance date

2019-10-11

Publication date

2019-12-20

Copyright date

2020

ISSN

2045-2543

eISSN

2045-2543

Language

  • en

Depositor

Dr Alister Smith Deposit date: 11 October 2019

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    Loughborough Publications

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