Observations and analysis of incidences of rockburst damage in underground mines

Daniel Heal

    Research output: ThesisDoctoral Thesis

    Abstract

    [Truncated abstract] This thesis deals with the topic of rockburst damage in hard rock, mechanised underground mines. Specifically, given a seismic event occurs at or near an excavation boundary, what factors specific to the characteristics of that excavation determine whether or not rockburst damage occurs and the severity of that damage? These findings were used to develop a probabilistic and empirical based system for assessing the rockburst damage potential of an excavation. An extensive literature review was undertaken to identify the current state of understanding of the rockburst problem, as well as determining shortcomings in the understanding of the rockburst damage potential of underground excavations. The review showed that there was no widely adopted or effective method of determining the likelihood and severity of rockburst damage. A large catalogue of rockburst case histories was collected. The catalogue comprised of 254 instances of rockburst damage from 13 hard rock, metalliferous, mechanised underground mines in Australia and Canada. The mines cover a range of commodities, geological conditions, mining methods and ground support practices. Through preliminary assessment of these case histories it was apparent that certain excavation specific factors contributed to the occurrence and severity of rockburst damage and were common across the different mine sites. It was found that for a given magnitude seismic event at a given distance from an excavation (that is, a characteristic peak particle velocity) there is a significant amount of variation in the amount of rockburst damage done which is dependent on site specific factors at the damage site. The literature review identified that there was limited data available on the in situ performance of complete ground support systems when subjected to dynamic loading.
    LanguageEnglish
    QualificationDoctor of Philosophy
    StateUnpublished - 2010

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    rockburst
    damage
    excavation
    hard rock
    literature review
    analysis
    history
    commodity

    Cite this

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    title = "Observations and analysis of incidences of rockburst damage in underground mines",
    abstract = "[Truncated abstract] This thesis deals with the topic of rockburst damage in hard rock, mechanised underground mines. Specifically, given a seismic event occurs at or near an excavation boundary, what factors specific to the characteristics of that excavation determine whether or not rockburst damage occurs and the severity of that damage? These findings were used to develop a probabilistic and empirical based system for assessing the rockburst damage potential of an excavation. An extensive literature review was undertaken to identify the current state of understanding of the rockburst problem, as well as determining shortcomings in the understanding of the rockburst damage potential of underground excavations. The review showed that there was no widely adopted or effective method of determining the likelihood and severity of rockburst damage. A large catalogue of rockburst case histories was collected. The catalogue comprised of 254 instances of rockburst damage from 13 hard rock, metalliferous, mechanised underground mines in Australia and Canada. The mines cover a range of commodities, geological conditions, mining methods and ground support practices. Through preliminary assessment of these case histories it was apparent that certain excavation specific factors contributed to the occurrence and severity of rockburst damage and were common across the different mine sites. It was found that for a given magnitude seismic event at a given distance from an excavation (that is, a characteristic peak particle velocity) there is a significant amount of variation in the amount of rockburst damage done which is dependent on site specific factors at the damage site. The literature review identified that there was limited data available on the in situ performance of complete ground support systems when subjected to dynamic loading.",
    keywords = "Ground control (Mining), Simulation methods, Subsidences (Earth movements), Earthquake hazard analysis, Mining engineering, Rockburst, Seismic risk, Underground mining",
    author = "Daniel Heal",
    year = "2010",
    language = "English",

    }

    Observations and analysis of incidences of rockburst damage in underground mines. / Heal, Daniel.

    2010.

    Research output: ThesisDoctoral Thesis

    TY - THES

    T1 - Observations and analysis of incidences of rockburst damage in underground mines

    AU - Heal,Daniel

    PY - 2010

    Y1 - 2010

    N2 - [Truncated abstract] This thesis deals with the topic of rockburst damage in hard rock, mechanised underground mines. Specifically, given a seismic event occurs at or near an excavation boundary, what factors specific to the characteristics of that excavation determine whether or not rockburst damage occurs and the severity of that damage? These findings were used to develop a probabilistic and empirical based system for assessing the rockburst damage potential of an excavation. An extensive literature review was undertaken to identify the current state of understanding of the rockburst problem, as well as determining shortcomings in the understanding of the rockburst damage potential of underground excavations. The review showed that there was no widely adopted or effective method of determining the likelihood and severity of rockburst damage. A large catalogue of rockburst case histories was collected. The catalogue comprised of 254 instances of rockburst damage from 13 hard rock, metalliferous, mechanised underground mines in Australia and Canada. The mines cover a range of commodities, geological conditions, mining methods and ground support practices. Through preliminary assessment of these case histories it was apparent that certain excavation specific factors contributed to the occurrence and severity of rockburst damage and were common across the different mine sites. It was found that for a given magnitude seismic event at a given distance from an excavation (that is, a characteristic peak particle velocity) there is a significant amount of variation in the amount of rockburst damage done which is dependent on site specific factors at the damage site. The literature review identified that there was limited data available on the in situ performance of complete ground support systems when subjected to dynamic loading.

    AB - [Truncated abstract] This thesis deals with the topic of rockburst damage in hard rock, mechanised underground mines. Specifically, given a seismic event occurs at or near an excavation boundary, what factors specific to the characteristics of that excavation determine whether or not rockburst damage occurs and the severity of that damage? These findings were used to develop a probabilistic and empirical based system for assessing the rockburst damage potential of an excavation. An extensive literature review was undertaken to identify the current state of understanding of the rockburst problem, as well as determining shortcomings in the understanding of the rockburst damage potential of underground excavations. The review showed that there was no widely adopted or effective method of determining the likelihood and severity of rockburst damage. A large catalogue of rockburst case histories was collected. The catalogue comprised of 254 instances of rockburst damage from 13 hard rock, metalliferous, mechanised underground mines in Australia and Canada. The mines cover a range of commodities, geological conditions, mining methods and ground support practices. Through preliminary assessment of these case histories it was apparent that certain excavation specific factors contributed to the occurrence and severity of rockburst damage and were common across the different mine sites. It was found that for a given magnitude seismic event at a given distance from an excavation (that is, a characteristic peak particle velocity) there is a significant amount of variation in the amount of rockburst damage done which is dependent on site specific factors at the damage site. The literature review identified that there was limited data available on the in situ performance of complete ground support systems when subjected to dynamic loading.

    KW - Ground control (Mining)

    KW - Simulation methods

    KW - Subsidences (Earth movements)

    KW - Earthquake hazard analysis

    KW - Mining engineering

    KW - Rockburst

    KW - Seismic risk

    KW - Underground mining

    M3 - Doctoral Thesis

    ER -