Mechanical properties of a carbonate sand from a dredged hydraulic fill

Author:

Giretti D.1ORCID,Fioravante V.2,Been K.3,Dickenson S.4

Affiliation:

1. ISMGEO srl, Seriate, Bergamo, Italy.

2. University of Ferrara, Ferrara, Italy.

3. Golder Associates Ltd, Halifax, NS, Canada.

4. New Albion Geotechnical Inc., Reno, NV, USA.

Abstract

This paper focuses on the properties of a crushable, uncemented, carbonate sand, retrieved from an artificial island to be used for petroleum production offshore of the United Arab Emirates. The sand was dredged from an offshore borrow area, placed hydraulically within engineered bunds to create the island and densified by vibroflotation. The results of a comprehensive laboratory testing programme are summarised in this paper, providing a set of mechanical properties for carbonate sand. The laboratory programme included static, cyclic and dynamic tests, the results of which are interpreted in a critical state soil mechanics framework, including stress dilatancy. The results of this testing programme contribute to on-going research on the behaviour of carbonate sands under static and cyclic loading conditions. The results are also compared with selected data for other carbonate and siliceous sands, and highlight the behaviour of crushable, carbonate sands used as hydraulic fills.

Publisher

Thomas Telford Ltd.

Subject

Earth and Planetary Sciences (miscellaneous),Geotechnical Engineering and Engineering Geology

Reference39 articles.

1. A state parameter for sands

2. Boese, R. J. (1989). The study of the mechanical behaviour of uncemented carbonate sands. BSc dissertation, The City University, London, UK.

3. Boulanger, R. W. & Idriss, I. M. (2014). CPT and SPT based liquefaction triggering procedures, Report No. UCD/CGM-14/01. Davis, CA, USA: Center for Geotechnical Modeling, Department of Civil and Environmental Engineering, University of California.

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