Projects per year
The properties of unbonded rock-steel interfaces and the characteristics that control this behaviour seem to be an under-researched area in terms of geotechnical application, for example in the design of gravity-based foundation systems or dead weight anchors and the interaction of pipelines on rock. Although basic guidance does exist for rock-rock interfaces or pipeline behaviour, this focuses on macro roughness, with little consideration of micro roughness, relative roughness of the surfaces or their strengths and hardness. Therefore, in order for design and understanding to develop in these areas, there is a need for basic interface friction parameters and understanding of the interface characteristics that control the strength of the interface, such that correct values can be used, but also so that the interface properties can be best manipulated to improve interface interaction. This paper presents interface friction angles for four types of rock sheared against steel interfaces of different roughness at a variety of normal stresses. The rocks themselves have a range of surface roughness, strength and hardness. The results of the testing programme are used to improve a simple analytical approach for predicting the shear strength of rock-steel interfaces that allows input of key controlling parameters.
|Number of pages||15|
|Journal||Proceedings of the Institution of Civil Engineers: Geotechnical Engineering|
|Early online date||8 Apr 2021|
|Publication status||Published - 1 Feb 2023|
- shear strength
- Shallow foundations
- Geotechnical engineering
- Strength and testing of materials
- geotechnical engineering
- strength & testing of materials
ASJC Scopus subject areas
- Civil and Structural Engineering
- Geotechnical Engineering and Engineering Geology
- Earth and Planetary Sciences (miscellaneous)
FingerprintDive into the research topics of 'Understanding Rock-Steel interface properties for use in offshore applications'. Together they form a unique fingerprint.
- 1 Finished
Enhanced Gravity Foundations on Rock for Marine Energy Generators (EGFoRMEG) (Studentship)
15/11/12 → 14/11/18
Centrifuge Testing of Large Screw Pile Geometries for Offshore ApplicationsCerfontaine, B., Davidson, C., Brown, M., Knappett, J. & Sharif, Y., 5 Mar 2021, p. 139-144.
Research output: Contribution to conference › Paper › peer-reviewOpen AccessFile
Characterising chalk-concrete interfaces for offshore renewable energy foundationsZiogos, A., Brown, M. J., Ivanovic, A. & Morgan, N., 2018, Engineering in Chalk: Proceedings of the Chalk 2018 Conference. Lawrence, J. A., Preene, M., Lawrence, U. L. & Buckley, R. (eds.). London: ICE Publishing, p. 521-527 7 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference contributionOpen AccessFile108 Downloads (Pure)
Chalk-steel Interface testing for marine energy foundationsZiogos, A., Brown, M., Ivanović, A. & Morgan, N., Jun 2017, In: Proceedings of the Institution of Civil Engineers: Geotechnical Engineering. 170, 3, p. 285-298 14 p.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile
Investigation of the interface shearing resistance of steel and concrete on different rocks for renewable energy gravity foundation applicationsAuthor: Ziogos, A., 2020
Supervisor: Brown, M. (Supervisor) & Knappett, J. (Supervisor)
Student thesis: Doctoral Thesis › Doctor of PhilosophyFile