Rock-steel interface testing and considerations for gravity foundations for tidal energy generators

A. D. Ziogos, M. J. Brown, A. Ivanovic, N. Morgan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

This paper presents results from research which aims to establish better understanding of the shear resistance of rock-steel interfaces to develop enhanced gravity foundations for tidal energy generators. Findings from laboratory testing are presented along with issues arising from field visits at sites with high tidal energy potential in Scotland. Direct shear box testswere carried out on rock analogue-steel interfaces at relatively low normal stresses. Different rock analogues and various techniques (polishing, machining etc.) were used for the surface preparation of steel samples resulting in a wide range of rock-steel relative interface roughness. Thisallowed the investigation of the effect of surface roughness on the interface behaviour along with the effect of the rock’s unconfined compressive strength. Results of laboratory testing suggest that relative rock-foundation roughness and rock strength are significant controls on interface resistance.

Original languageEnglish
Title of host publicationFrontiers in Offshore Geotechnics III
Subtitle of host publication3rd International Symposium on Frontiers in Offshore Geotechnics, ISFOG 2015
Place of PublicationLeiden
PublisherCRC Press/Balkema
Pages1245-1250
Number of pages6
ISBN (Electronic)9781315675510
ISBN (Print)9781138028487
DOIs
Publication statusPublished - 15 May 2015
EventProceedings of the 3rd International Symposium on Frontiers in Offshore Geotechnics, ISFOG 2015 - Oslo, Norway
Duration: 10 Jun 201512 Jun 2015

Conference

ConferenceProceedings of the 3rd International Symposium on Frontiers in Offshore Geotechnics, ISFOG 2015
CountryNorway
CityOslo
Period10/06/1512/06/15

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  • Cite this

    Ziogos, A. D., Brown, M. J., Ivanovic, A., & Morgan, N. (2015). Rock-steel interface testing and considerations for gravity foundations for tidal energy generators. In Frontiers in Offshore Geotechnics III : 3rd International Symposium on Frontiers in Offshore Geotechnics, ISFOG 2015 (pp. 1245-1250). CRC Press/Balkema. https://doi.org/10.1201/b18442