Centrifuge modelling of active slide–pipeline loading in soft clay

Submarine slides are a significant hazard to the safe operation of pipelines in the proximity of continental slopes. This paper describes the results of a centrifuge testing programme aimed at studying the impact forces exerted by a submarine slide on an offshore pipeline. This was achieved by dr...

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Main Authors:	Boylan, Noel, Fauzan, Sahdi, Gaudin, Christophe, White, David J.
Format:	Article
Language:	English
Published:	Plum Analytics 2014
Subjects:	GE Environmental Sciences TJ Mechanical engineering and machinery
Online Access:	http://ir.unimas.my/16157/ http://ir.unimas.my/16157/ http://ir.unimas.my/16157/ http://ir.unimas.my/16157/1/Centrifuge%20modelling%20of%20active%20slide%E2%80%93pipeline%20%28abstract%29.pdf

id	unimas-16157
recordtype	eprints
spelling	unimas-161572017-05-08T01:58:51Z http://ir.unimas.my/16157/ Centrifuge modelling of active slide–pipeline loading in soft clay Boylan, Noel Fauzan, Sahdi Gaudin, Christophe White, David J. GE Environmental Sciences TJ Mechanical engineering and machinery Submarine slides are a significant hazard to the safe operation of pipelines in the proximity of continental slopes. This paper describes the results of a centrifuge testing programme aimed at studying the impact forces exerted by a submarine slide on an offshore pipeline. This was achieved by dragging a model pipe at varying velocities through fine-grained soil at various degrees of consolidation, hence exhibiting properties spanning from the fluid to the geotechnical domains, relevant to the state of submarine slide material. To simulate the high strain rates experienced by the soil while flowing around a pipe in the path of a submarine slide, tests were conducted at pipe–soil velocities of up to 4.2 m/s. The changing density and shear strength of the samples were back-calculated from T-bar penetrometer test results. A hybrid approach combining geotechnical and fluid-mechanics-based components of horizontal drag resistance was developed. This approach provides an improved method to link the density and strength of the slide material to the force applied on the pipe. Besides fitting the present observations, the method provides an improved reinterpretation of similar data from the literature. Plum Analytics 2014 Article PeerReviewed text en http://ir.unimas.my/16157/1/Centrifuge%20modelling%20of%20active%20slide%E2%80%93pipeline%20%28abstract%29.pdf Boylan, Noel and Fauzan, Sahdi and Gaudin, Christophe and White, David J. (2014) Centrifuge modelling of active slide–pipeline loading in soft clay. Géotechnique, 64 (1). pp. 16-27. ISSN 0016-8505 https://www.researchgate.net/publication/274764994 DOI: 10.1680/geot.12.P.191
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Sarawak
building	UNIMAS Institutional Repository
collection	Online Access
language	English
topic	GE Environmental Sciences TJ Mechanical engineering and machinery
spellingShingle	GE Environmental Sciences TJ Mechanical engineering and machinery Boylan, Noel Fauzan, Sahdi Gaudin, Christophe White, David J. Centrifuge modelling of active slide–pipeline loading in soft clay
description	Submarine slides are a significant hazard to the safe operation of pipelines in the proximity of continental slopes. This paper describes the results of a centrifuge testing programme aimed at studying the impact forces exerted by a submarine slide on an offshore pipeline. This was achieved by dragging a model pipe at varying velocities through fine-grained soil at various degrees of consolidation, hence exhibiting properties spanning from the fluid to the geotechnical domains, relevant to the state of submarine slide material. To simulate the high strain rates experienced by the soil while flowing around a pipe in the path of a submarine slide, tests were conducted at pipe–soil velocities of up to 4.2 m/s. The changing density and shear strength of the samples were back-calculated from T-bar penetrometer test results. A hybrid approach combining geotechnical and fluid-mechanics-based components of horizontal drag resistance was developed. This approach provides an improved method to link the density and strength of the slide material to the force applied on the pipe. Besides fitting the present observations, the method provides an improved reinterpretation of similar data from the literature.
format	Article
author	Boylan, Noel Fauzan, Sahdi Gaudin, Christophe White, David J.
author_facet	Boylan, Noel Fauzan, Sahdi Gaudin, Christophe White, David J.
author_sort	Boylan, Noel
title	Centrifuge modelling of active slide–pipeline loading in soft clay
title_short	Centrifuge modelling of active slide–pipeline loading in soft clay
title_full	Centrifuge modelling of active slide–pipeline loading in soft clay
title_fullStr	Centrifuge modelling of active slide–pipeline loading in soft clay
title_full_unstemmed	Centrifuge modelling of active slide–pipeline loading in soft clay
title_sort	centrifuge modelling of active slide–pipeline loading in soft clay
publisher	Plum Analytics
publishDate	2014
url	http://ir.unimas.my/16157/ http://ir.unimas.my/16157/ http://ir.unimas.my/16157/ http://ir.unimas.my/16157/1/Centrifuge%20modelling%20of%20active%20slide%E2%80%93pipeline%20%28abstract%29.pdf
first_indexed	2018-09-06T16:27:08Z
last_indexed	2018-09-06T16:27:08Z
_version_	1610876168561491968

Centrifuge modelling of active slide–pipeline loading in soft clay

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