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Continuous characterisation of near-surface soil strength

Continuous characterisation of near-surface soil strength
Continuous characterisation of near-surface soil strength

A sound understanding of near-surface soil strength is essential for the accurate prediction of the response of structures laid on or shallowly embedded in the seabed. However, characterisation of the uppermost region of the seabed, which is typically very soft and at a low-stress state, is extremely challenging. This paper demonstrates a novel technique for characterising the in situ undrained shear strength of near-surface soils using a newly-developed pile penetrometer. The pile penetrometer is vertically embedded into the near-surface soil and is driven laterally. A simple calculation of the resistance mobilised over the embedded depth of the pile penetrometer is presented along with its application to the continuous measurement of spatial variation in near-surface strength in virgin and disturbed regions of soil.

American Society Of Mechanical Engineers (ASME)
Cocjin, Michael
42ee9efc-8d8a-4330-ae75-00665def8fd3
White, David
a986033d-d26d-4419-a3f3-20dc54efce93
Gourvenec, Susan
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Cocjin, Michael
42ee9efc-8d8a-4330-ae75-00665def8fd3
White, David
a986033d-d26d-4419-a3f3-20dc54efce93
Gourvenec, Susan
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8

Cocjin, Michael, White, David and Gourvenec, Susan (2014) Continuous characterisation of near-surface soil strength. In Offshore Geotechnics. vol. 3, American Society Of Mechanical Engineers (ASME).. (doi:10.1115/OMAE2014-23469).

Record type: Conference or Workshop Item (Paper)

Abstract

A sound understanding of near-surface soil strength is essential for the accurate prediction of the response of structures laid on or shallowly embedded in the seabed. However, characterisation of the uppermost region of the seabed, which is typically very soft and at a low-stress state, is extremely challenging. This paper demonstrates a novel technique for characterising the in situ undrained shear strength of near-surface soils using a newly-developed pile penetrometer. The pile penetrometer is vertically embedded into the near-surface soil and is driven laterally. A simple calculation of the resistance mobilised over the embedded depth of the pile penetrometer is presented along with its application to the continuous measurement of spatial variation in near-surface strength in virgin and disturbed regions of soil.

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More information

Published date: 2014
Venue - Dates: ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014, , San Francisco, United States, 2014-06-07 - 2014-06-12

Identifiers

Local EPrints ID: 414515
URI: http://eprints.soton.ac.uk/id/eprint/414515
PURE UUID: 8a02d47a-3e70-454e-abd6-c9674e36ccd9
ORCID for David White: ORCID iD orcid.org/0000-0002-2968-582X
ORCID for Susan Gourvenec: ORCID iD orcid.org/0000-0002-2628-7914

Catalogue record

Date deposited: 03 Oct 2017 16:31
Last modified: 09 Jan 2022 03:59

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Contributors

Author: Michael Cocjin
Author: David White ORCID iD
Author: Susan Gourvenec ORCID iD

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