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Investigation of Rockburst Mechanisms and Rockburst Prediction Using Numerical Modeling Methods
, 2023 Rockburst is a sudden rock failure characterized by the breaking up and expulsion of rocks from their surroundings, accompanied by a violent release of energy. Due to its unpredictability and high intensity, rockburst is one of the most hazardous geological disasters. It has caused thousands of injuries and fatalities and significant economic losses to
Wang, Jun
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Rockburst mechanism and prediction based on microseismic monitoring
International Journal of Rock Mechanics and Minings Sciences, 2018Abstract In this study, the rockburst definition is comprehensively described and several main rockburst theories (the strength theory, the energy theory, the bursting liability theory, the rigidity theory and the instability theory) are analyzed.
Chun’an Tang, Shibin Tang, Xu Zhu
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Study on Evolution Mechanism of Structure-Type Rockburst: Insights from Discrete Element Modeling
Sustainability, 2021 Taking the “11.28” rockburst occurred in the Jinping II Hydropower Station as the engineering background, the evolution mechanism of structure-type rockburst was studied in detail based on the particle flow code.
Diyuan Li, Shunchuan Wu, Long Chen
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Rockburst mechanisms in tunnels and shafts
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1994Abstract Rockburst occurrences in tunnels have been reported from many countries, and it is apparent that there are different concepts of “rockbursting.” In this paper, several different mechanisms of rockbursting are distinguished, and a clear distinction is drawn between source and damage mechanisms.
W.D. Ortlepp, T.R. Stacey
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Rock Mechanics and Rock Engineering, 2021
As the buried depth of the tunnel increased, rockbursts occurred frequently during the tunnel boring machine (TBM) excavation of a diversion tunnel. In addition, multiple rockbursts occurred in the same area within a short period of time, seriously threatening the safety of workers and construction equipment.
Yucheng Wang +6 more
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As the buried depth of the tunnel increased, rockbursts occurred frequently during the tunnel boring machine (TBM) excavation of a diversion tunnel. In addition, multiple rockbursts occurred in the same area within a short period of time, seriously threatening the safety of workers and construction equipment.
Yucheng Wang +6 more
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Possible mechanism of rockbursts in coal mines
pure and applied geophysics, 1986One of the important questions of rockburst prevention is the understanding of the mechanism of rockburst source. This question can be effectively studied by direct seismic observations in the rockburst regions. For this purpose, the distribution ofP-wave onset signs and the inversion of first motion amplitudes were utilized as the basic method.
V. Rudajev +3 more
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Geomechanical types and mechanical analyses of rockbursts
Engineering Geology, 2017Abstract Rockbursts generally occur in highly stressed rock masses because of underground openings. To ensure the safety of construction works, factors that play a role in predicting and preventing rockbursts should be analyzed. Based on numerous geological and mechanical analyses of rockbursts in China, six basic geomechanical types of rockbursts ...
Tianbin Li +4 more
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Induced Mechanism of Stope Roof Rockbursts in Underground Excavation
57th U.S. Rock Mechanics/Geomechanics Symposium, 2023ABSTRACT A rockburst is defined as a sudden and violent disruption of rock in underground excavation. Rockbursts have been regarded as the least understood and the most feared mining disasters. Excavation-induced stress redistribution may lead to slippage of some pre-existing faults or even a new faulting in the ...
J. Deng, X. Q. Wang
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Analytical and Numerical Study on the Pillar Rockbursts Mechanism
Rock Mechanics and Rock Engineering, 2005Based on cusp-type catastrophe theory, a sample rock–rock model for studying the pillar rockburst mechanism is presented in this paper. It is shown that the stiffness ratio, K, of the roof and floor to the pillar plays an important role in the outbreak of instability.
S. Y. Wang +5 more
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Research on the Mechanism and Prevention of Rockburst at the Yinxin Gold Mine
Journal of China University of Mining and Technology, 2007Abstract The occurrence and nature of shaft rockburst in the Yinxin gold mine are recorded and analyzed. Rockburst happens along an obvious south-north orientation. The ground and surrounding rock stresses are measured in this mine. The research indicates that the directivity of rockburst is closely related to geological structure and to abnormal ...
Xiao-chun ZHANG, Jun-qiang WANG
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