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Analysis of Energy Accumulation and Dissipation of Coal Bursts

Author

Listed:
  • Xiaohan Yang

    (School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia)

  • Ting Ren

    (School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
    Centre of Infrastructure Protection and Mining Safety, University of Wollongong, Wollongong, NSW 2522, Australia)

  • Alex Remennikov

    (School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
    Centre of Infrastructure Protection and Mining Safety, University of Wollongong, Wollongong, NSW 2522, Australia)

  • Xueqiu He

    (School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
    School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China)

  • Lihai Tan

    (School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia)

Abstract

Coal bursts are a serious dynamic hazard for underground coalmines, and they attract the extensive interest of studies from mining and geotechnical researchers worldwide. More recently, coal-burst incidents were reported in some Australian coalmines as a result of inadequate geological assessment of coal-burst hazards. The coal-burst process is closely associated with the accumulation of elastic energy and the rapid dissipation of kinetic energy. This paper introduces the essential geological conditions for energy accumulation, and the likely precursors for rapid energy dissipation leading to coal burst, which can be used by Australian coalmines to determine their coal-burst risk accordingly. Different energy forms and their transformations during the coal-burst process are introduced in detail in this paper. The dominant geological factors resulting in the accumulation of massive energy are analyzed, and the likely precursors associated with the instant release of elastic energy are discussed.

Suggested Citation

  • Xiaohan Yang & Ting Ren & Alex Remennikov & Xueqiu He & Lihai Tan, 2018. "Analysis of Energy Accumulation and Dissipation of Coal Bursts," Energies, MDPI, vol. 11(7), pages 1-10, July.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:7:p:1816-:d:157420
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    References listed on IDEAS

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    1. Xiaofei Liu & Guang Xu & Chong Zhang & Biao Kong & Jifa Qian & Dong Zhu & Mingyao Wei, 2017. "Time Effect of Water Injection on the Mechanical Properties of Coal and Its Application in Rockburst Prevention in Mining," Energies, MDPI, vol. 10(11), pages 1-26, November.
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    Cited by:

    1. Du, Xuanhong & Xue, Junhua & Shi, Yu & Cao, Chen-Rui & Shu, Chi-Min & Li, Kehan & Ma, Qian & Zhan, Keliang & Chen, Zhiheng & Wang, Shulou, 2023. "Triaxial mechanical behaviour and energy conversion characteristics of deep coal bodies under confining pressure," Energy, Elsevier, vol. 266(C).
    2. Zhiguo LU & Wenjun JU & Fuqiang GAO & Youliang FENG & Zhuoyue SUN & Hao WANG & Kang YI, 2019. "A New Bursting Liability Evaluation Index for Coal –The Effective Elastic Strain Energy Release Rate," Energies, MDPI, vol. 12(19), pages 1-15, September.

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