Advanced laboratory characterization of a fine marine sand from Dunkirk, France

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Title: Advanced laboratory characterization of a fine marine sand from Dunkirk, France
Authors: Liu, T
Aghakouchak, A
Taborda, DMG
Jardine, RJ
Item Type: Conference Paper
Abstract: Dense fine marine sand is encountered at the Dunkirk ZIP Les Huttes test site located in northern France that has been employed extensively for research into pile behaviour. Laboratory testing of the sand is required to fully characterise site conditions and determine parameter inputs for analysing the field pile experiments. This paper summarises some of the comprehensive laboratory testing programmes undertaken to investigate the sand’s mechanical behaviour, including stress-strain relationships, stiffness and strength anisotropy, cyclic behaviour, and interface shear properties. The paper first reviews the site’s geotechnical conditions and their potential variations over time. The stringent laboratory requirements that are necessary for the accurate measurement of shear stiffness, strength, and creep strains are then discussed, before presenting illustrative results regarding the sand’s small strain stiffness and time-dependent behaviour. The importance of reproducing site conditions and stress states are also addressed in relation to integrating the laboratory research with field observations and analyses of both recent and historical piling experiments at the Dunkirk test site.
Issue Date: 17-Sep-2017
Date of Acceptance: 5-May-2017
Publisher: ICSMGE
Start Page: 439
End Page: 442
Journal / Book Title: Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul 2017
Copyright Statement: © 2017 ICSMGE
Sponsor/Funder: DONG Energy Wind Power A/S
DONG Energy Wind Power A/S
The Royal Society
Funder's Grant Number: 030-13-0133
Layered Soils Extension Projec
Conference Name: 19th International Conference on Soil Mechanics and Geotechnical Engineering
Start Date: 2017-09-17
Finish Date: 2017-09-22
Conference Place: Seoul, Korea
Open Access location:
Appears in Collections:Civil and Environmental Engineering

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