Effect of steel type on friction developed on driven piles in sands

E. Bittar, B. M. Lehane, P. Watson, A. Shonberg, A. Deeks

Research output: Chapter in Book/Conference paperConference paperpeer-review

Abstract

This paper examines the effect of steel type on the ageing characteristics of shaft friction for driven piles in sand. Mild steel and stainless steel piles were driven and left to age for various periods before being subjected to static tension tests. A series of interface shear tests was also performed using mild steel and stainless steel interfaces to assist interpretation of the field tests. The results indicate that, in dry sand conditions and for piles with non-reactive steel, there is no increase in shaft friction with time. In contrast, significant gains in shaft friction over time are shown by (reactive) mild steel piles in the presence of water. These piles develop a crust bonded to the shaft but the gains in capacity cannot be explained solely by the increase in ultimate friction angle observed in the interface shear tests.

Original languageEnglish
Title of host publicationOffshore Site Investigation Geotechnics 9th International Conference Proceeding
PublisherSociety for Underwater Technology
Pages1955-1961
Number of pages7
ISBN (Print)9780906940594
DOIs
Publication statusPublished - 2023
Event9th International Conference on Innovative Geotechnologies for Energy Transition, 2023 - London, United Kingdom
Duration: 12 Sept 202314 Sept 2023

Publication series

NameOffshore Site Investigation and Geotechnics
ISSN (Print)2754-6322

Conference

Conference9th International Conference on Innovative Geotechnologies for Energy Transition, 2023
Country/TerritoryUnited Kingdom
CityLondon
Period12/09/2314/09/23

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