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Geotechnical centrifuge modelling techniques for submarine slides

Geotechnical centrifuge modelling techniques for submarine slides
Geotechnical centrifuge modelling techniques for submarine slides

The gradual shift of hydrocarbon developments into deeper waters has presented fresh challenges for offshore geotechnical engineering. Many installations in deep water require export pipelines to shore which can be many hundreds of kilometers in length. These pipelines must negotiate unstable regions of soft seabed around the steep continental shelf and variable terrain including canyons with depths ranging from tens of meters to a several hundred meters. These challenging conditions present potential geohazards for which little understanding has been developed so far. One of the major geohazards is the impact of a submarine landslide on nearby pipelines which could potentially damage the pipeline. Consequently, a Joint Industry Project (JIP) has been initiated at the Centre for Offshore Foundation Systems to improve methods for assessing the potential damage to pipelines and to provide information to assist re-routing of a pipeline to a safer alignment if necessary. This paper presents an overview of the development of specific modeling techniques to (i) trigger a submarine landslide in a geotechnical centrifuge, (ii) measure the strength properties of the slide material before, during, and after the slide failure and (iii) measure the interaction between the runout material and the seabed.

65-72
American Society Of Mechanical Engineers (ASME)
Boylan, N.
e9ddfa83-2c78-4d46-83c4-3414e5adc65a
Gaudin, C.
4d1197f0-7c69-4301-8877-33f840784685
White, D.J.
a986033d-d26d-4419-a3f3-20dc54efce93
Randolph, M.F.
75caa33a-e630-4ae8-84cd-758797bf9633
Schneider, J.A.
a1977f2e-3b1e-4d0b-86ac-c0c9b12de3b6
Boylan, N.
e9ddfa83-2c78-4d46-83c4-3414e5adc65a
Gaudin, C.
4d1197f0-7c69-4301-8877-33f840784685
White, D.J.
a986033d-d26d-4419-a3f3-20dc54efce93
Randolph, M.F.
75caa33a-e630-4ae8-84cd-758797bf9633
Schneider, J.A.
a1977f2e-3b1e-4d0b-86ac-c0c9b12de3b6

Boylan, N., Gaudin, C., White, D.J., Randolph, M.F. and Schneider, J.A. (2009) Geotechnical centrifuge modelling techniques for submarine slides. In Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009. vol. 7, American Society Of Mechanical Engineers (ASME). pp. 65-72 . (doi:10.1115/OMAE2009-79059).

Record type: Conference or Workshop Item (Paper)

Abstract

The gradual shift of hydrocarbon developments into deeper waters has presented fresh challenges for offshore geotechnical engineering. Many installations in deep water require export pipelines to shore which can be many hundreds of kilometers in length. These pipelines must negotiate unstable regions of soft seabed around the steep continental shelf and variable terrain including canyons with depths ranging from tens of meters to a several hundred meters. These challenging conditions present potential geohazards for which little understanding has been developed so far. One of the major geohazards is the impact of a submarine landslide on nearby pipelines which could potentially damage the pipeline. Consequently, a Joint Industry Project (JIP) has been initiated at the Centre for Offshore Foundation Systems to improve methods for assessing the potential damage to pipelines and to provide information to assist re-routing of a pipeline to a safer alignment if necessary. This paper presents an overview of the development of specific modeling techniques to (i) trigger a submarine landslide in a geotechnical centrifuge, (ii) measure the strength properties of the slide material before, during, and after the slide failure and (iii) measure the interaction between the runout material and the seabed.

Full text not available from this repository.

More information

Published date: 2009
Venue - Dates: 28th International Conference on Ocean, Offshore and Arctic Engineering, Honolulu, United States, 2009-05-31 - 2009-06-05

Identifiers

Local EPrints ID: 419872
URI: https://eprints.soton.ac.uk/id/eprint/419872
PURE UUID: 53b69a48-3b9c-4ee0-98d9-51e5d8dd5dde
ORCID for D.J. White: ORCID iD orcid.org/0000-0002-2968-582X

Catalogue record

Date deposited: 23 Apr 2018 16:30
Last modified: 19 Nov 2019 01:26

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