An experimental and numerical study of runout from a tailings dam failure

Huiting Liu

    Research output: ThesisDoctoral Thesis

    Abstract

    The aim of this research was to study the importance of the outflow hydrograph associated with a tailings dam failure and the resulting runout distance using both experimental and numerical modelling.
    In the laboratory experiment, the 'tailings' - simulated by a Carbopol 940 solutions was released from a reservoir using an automated, sliding vertical gate, with the position to which the gate was dropped. Twenty five flume tests were carried out, using a range of initial reservoir volumes.
    Numerical modelling of the experiments was carried out using Computational Fluid Dynamics (CFO). The Volume of Fluid (VOF) method was used to simulate flow released from the reservoir and resulting flow patterns using Herschel-Bulkley fluid model. Comparison of the experimental data with the modelling was similarly excellent, illustrating that, very good predictions of runout distance are possible, as long as the development of a reservoir (TSF) failure can be adequately characterized.
    LanguageEnglish
    QualificationDoctor of Philosophy
    Awarding Institution
    • The University of Western Australia
    Supervisors/Advisors
    • Fourie, Andries, Supervisor
    • Draper, Scott, Supervisor
    Award date12 Mar 2018
    DOIs
    StateUnpublished - 2018

    Fingerprint

    dam failure
    tailings dam
    modeling
    fluid
    computational fluid dynamics
    hydrograph
    flow pattern
    tailings
    sliding
    outflow
    prediction
    experiment

    Cite this

    @phdthesis{65027e431c3046aeb804d03764d2ad7d,
    title = "An experimental and numerical study of runout from a tailings dam failure",
    abstract = "The aim of this research was to study the importance of the outflow hydrograph associated with a tailings dam failure and the resulting runout distance using both experimental and numerical modelling. In the laboratory experiment, the 'tailings' - simulated by a Carbopol 940 solutions was released from a reservoir using an automated, sliding vertical gate, with the position to which the gate was dropped. Twenty five flume tests were carried out, using a range of initial reservoir volumes. Numerical modelling of the experiments was carried out using Computational Fluid Dynamics (CFO). The Volume of Fluid (VOF) method was used to simulate flow released from the reservoir and resulting flow patterns using Herschel-Bulkley fluid model. Comparison of the experimental data with the modelling was similarly excellent, illustrating that, very good predictions of runout distance are possible, as long as the development of a reservoir (TSF) failure can be adequately characterized.",
    keywords = "Carbopol 940, Reservoir volume, Tailings Dam Failure, Volume of Fluid (VOF), Dam-break, Outflow hydrograph, Herschel-Bulkley, Runout distance",
    author = "Huiting Liu",
    year = "2018",
    doi = "10.4225/23/5ac6e5ef2b0f4",
    language = "English",
    school = "The University of Western Australia",

    }

    Liu, H 2018, 'An experimental and numerical study of runout from a tailings dam failure', Doctor of Philosophy, The University of Western Australia. DOI: 10.4225/23/5ac6e5ef2b0f4

    An experimental and numerical study of runout from a tailings dam failure. / Liu, Huiting.

    2018.

    Research output: ThesisDoctoral Thesis

    TY - THES

    T1 - An experimental and numerical study of runout from a tailings dam failure

    AU - Liu,Huiting

    PY - 2018

    Y1 - 2018

    N2 - The aim of this research was to study the importance of the outflow hydrograph associated with a tailings dam failure and the resulting runout distance using both experimental and numerical modelling. In the laboratory experiment, the 'tailings' - simulated by a Carbopol 940 solutions was released from a reservoir using an automated, sliding vertical gate, with the position to which the gate was dropped. Twenty five flume tests were carried out, using a range of initial reservoir volumes. Numerical modelling of the experiments was carried out using Computational Fluid Dynamics (CFO). The Volume of Fluid (VOF) method was used to simulate flow released from the reservoir and resulting flow patterns using Herschel-Bulkley fluid model. Comparison of the experimental data with the modelling was similarly excellent, illustrating that, very good predictions of runout distance are possible, as long as the development of a reservoir (TSF) failure can be adequately characterized.

    AB - The aim of this research was to study the importance of the outflow hydrograph associated with a tailings dam failure and the resulting runout distance using both experimental and numerical modelling. In the laboratory experiment, the 'tailings' - simulated by a Carbopol 940 solutions was released from a reservoir using an automated, sliding vertical gate, with the position to which the gate was dropped. Twenty five flume tests were carried out, using a range of initial reservoir volumes. Numerical modelling of the experiments was carried out using Computational Fluid Dynamics (CFO). The Volume of Fluid (VOF) method was used to simulate flow released from the reservoir and resulting flow patterns using Herschel-Bulkley fluid model. Comparison of the experimental data with the modelling was similarly excellent, illustrating that, very good predictions of runout distance are possible, as long as the development of a reservoir (TSF) failure can be adequately characterized.

    KW - Carbopol 940

    KW - Reservoir volume

    KW - Tailings Dam Failure

    KW - Volume of Fluid (VOF)

    KW - Dam-break

    KW - Outflow hydrograph

    KW - Herschel-Bulkley

    KW - Runout distance

    U2 - 10.4225/23/5ac6e5ef2b0f4

    DO - 10.4225/23/5ac6e5ef2b0f4

    M3 - Doctoral Thesis

    ER -