Rock damage is the main cause of accidents in underground engineering. It is difficult to predict rock damage accurately by using only one parameter. In this study, a rock failure prediction model was established by using stress, energy, and damage. The prediction level was divided into three levels according to the ratio of the damage threshold stress to the peak stress. A classification predicting model was established, including the stress, energy, damage and AE impact rate using Bayesian method. Results show that the model is good practicability and effectiveness in predicting the degree of rock failure. On the basis of this, a multi-parameter classification predicting deterioration model of rock failure was established. The results provide a new idea for classifying and predicting rockburst.
Key Words
rock failure; multi-parameter; acoustic emission; Bayesian; classified predicting
Address
Chunlai Wang, Changfeng Li, Zeng Chen, Zefeng Liao and Feng Shi — School of Energy and Mining Engineering, China University of Mining and Technology Beijing, 100083, Beijing, China
Guangming Zhao — School of Energy and Safety Engineering, Anhui University of Science and Technology, 232001, Huainan, Anhui, China
Weijian Yu — School of Resource and Environment and Safety Engineering, Hunan University of Science and Technology, 411201, Hunan Xiangtan, China
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