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The Revealed Mechanism of Rock Burst Based on an Innovative Calculation Method of Rock Mass Released Energy

Author

Listed:
  • Wenlong Zhang

    (School of Civil Engineering and Architecture, Qingdao Huanghai University, Qingdao 266427, China)

  • Jicheng Feng

    (School of Safety Engineering, North China Institute of Science & Technology, Langfang 065201, China)

  • Ji Ma

    (College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China)

  • Jianjun Shi

    (School of Safety Engineering, North China Institute of Science & Technology, Langfang 065201, China)

Abstract

It is very necessary to study the mechanism of rock burst, which is related to the safe construction of many geotechnical projects. Previous studies have shown that small trigger stress will lead to large energy release, but the specific conditions that cause the release and how to quantify the energy are urgent problems to be solved. In this study, an innovative calculation method of rock mass energy release is proposed, and the calculated release energy is consistent with the monitoring results of field monitoring equipment. The revealed mechanism of rock burst reflected is that under the condition of a large-ratio pre-state stress field (mostly > 2.5), a small trigger stress field will lead to a large amount of energy release under “late butterfly shape” or “final butterfly shape” of the plastic zone. This study reveals the key factor of rock burst, which plays an important reference role for the mechanism research, subsequent monitoring and treatment method of rock burst.

Suggested Citation

  • Wenlong Zhang & Jicheng Feng & Ji Ma & Jianjun Shi, 2022. "The Revealed Mechanism of Rock Burst Based on an Innovative Calculation Method of Rock Mass Released Energy," IJERPH, MDPI, vol. 19(24), pages 1-12, December.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:24:p:16636-:d:1000078
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    References listed on IDEAS

    as
    1. Weiyao Guo & Qingheng Gu & Yunliang Tan & Shanchao Hu, 2019. "Case Studies of Rock Bursts in Tectonic Areas with Facies Change," Energies, MDPI, vol. 12(7), pages 1-11, April.
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