Results 1 to 10 of about 781 (105)

Theoretical study and application of energy extreme value discrimination method of softening zone for bursting hazard [PDF]

Science Progress, 2022
Considering the current situation that it's difficult to quantify the discrimination of rockburst hazard, an analytical solution for the softening zone energy of surrounding rock under rockburst in a circular roadway is obtained theoretically based on ...
Xiaojing Zhu, Qingxin Qi, Yonghui Xiao
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Sensitivity analysis of bursting liability for different coal-rock combinations based on their inhomogeneous characteristics

Geomatics, Natural Hazards & Risk, 2020
Because of the close relationship between rock burst and structural characteristics of coal and rock mass, it is important to study failure and bursting liability of different coal-rock combinations to predict rock burst.
Pu Wang, Hongjun Jia, Pengqiang Zheng
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Classification of coal bursting liability of some chinese coals using machine learning methods [PDF]

Scientific Reports
The classification of coal bursting liability (CBL) is essential for the mitigation and management of coal bursts in mining operations. This study establishes an index system for CBL classification, incorporating dynamic fracture duration (DT), elastic ...
Chao Wang, Yv Liu, Yuefeng Li, Xiaofei Liu, Qiwei Wang   +4 more
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A coal bursting liability evaluation model based on fuzzy set theory and analysis of three influencing factors

Frontiers in Earth Science
The classification of coal bursting liability is of great significance for the prevention and control of rock burst. To address the shortcomings in existing bursting liability classification methods, a comprehensive evaluation model for bursting ...
Chao Wang, Chao Wang, Zijun Jin, Xiaofei Liu, Tuanhui Wang, Yu Liu, Shaoyuan Zhang, Qiwei Wang   +7 more
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Coal bursting liability determination by needle penetration test: Empirical criterion and machine learning

International Journal of Coal Science & Technology
Coal bursting liability refers to the mechanical property of the degree and possibility of coal burst. The bursting liability is important to evaluate coal burst in mining.
Yixin Zhao, Ronghuan Xie, Shirui Wang, Yirui Gao, Sen Gao, Xiaodong Guo, Chuncheng Sun, Jinbao Guo   +7 more
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A New Bursting Liability Evaluation Index for Coal –The Effective Elastic Strain Energy Release Rate

Energies, 2019
Because both faults and cleats exist in coal, sharp stress drops occur during loading when coal is deformed. These drops occur during the pre-peak stage and are accompanied by sudden energy releases.
Zhiguo LU, Wenjun JU, Fuqiang GAO, Youliang FENG, Zhuoyue SUN, Hao WANG, Kang YI   +6 more
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Study on the Energy Evolution Law and Bursting Liability of Coal Failure with Different Joint Inclination Angles

Applied Sciences
Joints are the weak plane structures in coal. The existence of joints leads to coal failure, with different fracture modes and energy evolution laws. In this paper, the energy evolution and bursting liability index of coal failure with different joint ...
Shan Yin, Zhonghui Li, Dazhao Song, Hongwei Mu, Yue Niu, Xiaoran Wang   +5 more
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Effect of Acid and Alkaline Environment on Dynamic Strength and Porosity Characteristics of Bursting Liability Coal

Shock and Vibration, 2021
In order to investigate the influence of acid and alkaline environment on dynamic strength and porosity characteristics of bursting liability coal, scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis were used to compare the ...
Lei Li, Jiangbo Fan, Ningning Liu, Shuang Gong, Daming Yang   +4 more
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Differences of Mechanical Parameters and Rockburst Tendency Indices between Coal and Non-Coal Rocks and Modified Rockburst Tendency Classification Criteria for Non-Coal Rocks

Applied Sciences, 2021
Rockbursts represent hazardous dynamic disasters for underground coal mines and other underground rock engineering projects. Some bursting liability indices are put forward and applied to identify the likelihood of rock burst occurrence.
Kun Du, Yu Sun, Songge Yang, Shizhan Lv, Shaofeng Wang   +4 more
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Acoustic Emission and Fractal Precursory Characteristics of Coals with Different Bursting Liabilities in Loading Failure Process

Shock and Vibration, 2021
Aimed at investigating the differentiation of acoustic emission (AE) signals and fractal precursory characteristics between strong, weak, and no bursting liability coals under uniaxial compression, as well as improving the accuracy of rockburst ...
Chao Wang, Yuefeng Li, Yong Li, Jianhui Xu, Chengliang Zhang   +4 more
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