Development of design approaches for dynamically installed anchors validated through field and centrifuge studies

Colm Padraig O'Beirne

Development of design approaches for dynamically installed anchors validated through field and centrifuge studies

Research output: Thesis › Doctoral Thesis

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Abstract

As the offshore energy industry moves into deeper waters, it is tending towards cost effective anchoring systems as an alternative foundation solution. Dynamically installed anchors are torpedo shaped and can penetrate up to 3 times their length into the seabed by the kinetic energy obtained through free-fall.
The project investigates the anchors' performance through novel field and centrifuge studies. Existing tools for predicting anchor embedment depth and subsequent holding capacity are rigorously analysed and uncertainties regarding the anchors' behaviour during installation and inclined loading are addressed. New design approaches have been developed and validated against the extensive data.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	O'Loughlin, Conleth, Supervisor Gaudin, Christophe, Supervisor
Award date	22 Dec 2016
Publication status	Unpublished - 2016

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THESIS - DOCTOR OF PHILOSOPHY - O BEIRNE Colm Padraig - 2016
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title = "Development of design approaches for dynamically installed anchors validated through field and centrifuge studies",

abstract = "As the offshore energy industry moves into deeper waters, it is tending towards cost effective anchoring systems as an alternative foundation solution. Dynamically installed anchors are torpedo shaped and can penetrate up to 3 times their length into the seabed by the kinetic energy obtained through free-fall. The project investigates the anchors' performance through novel field and centrifuge studies. Existing tools for predicting anchor embedment depth and subsequent holding capacity are rigorously analysed and uncertainties regarding the anchors' behaviour during installation and inclined loading are addressed. New design approaches have been developed and validated against the extensive data.",

keywords = "Dynamically installed anchor, Centrifuge modelling, Offshore engineering, Capacity, Field tests, Soft soil, MEMS, Inertial measurement unit",

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year = "2016",

language = "English",

school = "The University of Western Australia",

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AU - O'Beirne, Colm Padraig

PY - 2016

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N2 - As the offshore energy industry moves into deeper waters, it is tending towards cost effective anchoring systems as an alternative foundation solution. Dynamically installed anchors are torpedo shaped and can penetrate up to 3 times their length into the seabed by the kinetic energy obtained through free-fall. The project investigates the anchors' performance through novel field and centrifuge studies. Existing tools for predicting anchor embedment depth and subsequent holding capacity are rigorously analysed and uncertainties regarding the anchors' behaviour during installation and inclined loading are addressed. New design approaches have been developed and validated against the extensive data.

AB - As the offshore energy industry moves into deeper waters, it is tending towards cost effective anchoring systems as an alternative foundation solution. Dynamically installed anchors are torpedo shaped and can penetrate up to 3 times their length into the seabed by the kinetic energy obtained through free-fall. The project investigates the anchors' performance through novel field and centrifuge studies. Existing tools for predicting anchor embedment depth and subsequent holding capacity are rigorously analysed and uncertainties regarding the anchors' behaviour during installation and inclined loading are addressed. New design approaches have been developed and validated against the extensive data.

KW - Dynamically installed anchor

KW - Centrifuge modelling

KW - Offshore engineering

KW - Capacity

KW - Field tests

KW - Soft soil

KW - MEMS

KW - Inertial measurement unit

M3 - Doctoral Thesis

ER -

Development of design approaches for dynamically installed anchors validated through field and centrifuge studies

Abstract

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