Runout of submarine landslides and their impact on subsea infrastructure using material point method

Youkou Dong

    Research output: ThesisDoctoral Thesis

    Abstract

    The material point method Is adopted to simulate the runout of submarine slides and their impact on subsea Infrastructure. Parallelised code running on graphics processing units yields runtimes about 5% of those for sequential computations.

    Runout behaviour of centrifuge model tests and real case history are simulated and compared with depth-averaged methods.Different runout mechanisms are observed for different combinations of soil and seabed parameters.

    Steady force exerted by slides impacting fixed seabed infrastructure are quantified, fitting results with a hybrid model that captures effects due to Inertia, shear strength and static pressure of the sliding material.
    LanguageEnglish
    QualificationDoctor of Philosophy
    Awarding Institution
    • The University of Western Australia
    Award date16 Feb 2017
    StateUnpublished - 2017

    Fingerprint

    Landslides
    Centrifuges
    Shear strength
    Soils
    Graphics processing unit

    Cite this

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    title = "Runout of submarine landslides and their impact on subsea infrastructure using material point method",
    abstract = "The material point method Is adopted to simulate the runout of submarine slides and their impact on subsea Infrastructure. Parallelised code running on graphics processing units yields runtimes about 5{\%} of those for sequential computations.Runout behaviour of centrifuge model tests and real case history are simulated and compared with depth-averaged methods.Different runout mechanisms are observed for different combinations of soil and seabed parameters.Steady force exerted by slides impacting fixed seabed infrastructure are quantified, fitting results with a hybrid model that captures effects due to Inertia, shear strength and static pressure of the sliding material.",
    keywords = "Submarine landslide, Material point method, Morphology, Runout, Large deformation, Pipeline, Mudmat, Impact",
    author = "Youkou Dong",
    year = "2017",
    language = "English",
    school = "The University of Western Australia",

    }

    Dong, Y 2017, 'Runout of submarine landslides and their impact on subsea infrastructure using material point method', Doctor of Philosophy, The University of Western Australia.

    TY - THES

    T1 - Runout of submarine landslides and their impact on subsea infrastructure using material point method

    AU - Dong,Youkou

    PY - 2017

    Y1 - 2017

    N2 - The material point method Is adopted to simulate the runout of submarine slides and their impact on subsea Infrastructure. Parallelised code running on graphics processing units yields runtimes about 5% of those for sequential computations.Runout behaviour of centrifuge model tests and real case history are simulated and compared with depth-averaged methods.Different runout mechanisms are observed for different combinations of soil and seabed parameters.Steady force exerted by slides impacting fixed seabed infrastructure are quantified, fitting results with a hybrid model that captures effects due to Inertia, shear strength and static pressure of the sliding material.

    AB - The material point method Is adopted to simulate the runout of submarine slides and their impact on subsea Infrastructure. Parallelised code running on graphics processing units yields runtimes about 5% of those for sequential computations.Runout behaviour of centrifuge model tests and real case history are simulated and compared with depth-averaged methods.Different runout mechanisms are observed for different combinations of soil and seabed parameters.Steady force exerted by slides impacting fixed seabed infrastructure are quantified, fitting results with a hybrid model that captures effects due to Inertia, shear strength and static pressure of the sliding material.

    KW - Submarine landslide

    KW - Material point method

    KW - Morphology

    KW - Runout

    KW - Large deformation

    KW - Pipeline

    KW - Mudmat

    KW - Impact

    M3 - Doctoral Thesis

    ER -