JRMGE / Vol 16 / Issue 1
Coalbursts in China: Theory, practice and management
Yishan Pan, Yimin Song, Hao Luo, Yonghui Xiao
Show More
a Institute of Disaster Rock Mechanics, Liaoning University, Shenyang, 110036, China
b School of Civil Engineering, North China University of Technology, Beijing, 100144, China
c College of Computer Science, Liaoning University, Shenyang, 110036, China
d School of Physics, Liaoning University, Shenyang, 110036, China
2024, 16(1): 1-25. doi:10.1016/j.jrmge.2023.11.003
Received: 2023-11-05 / Revised: / Accepted: 2023-11-20 / Available online: 2023-11-29
2024, 16(1): 1-25.
doi:10.1016/j.jrmge.2023.11.003
Received: 2023-11-05
Revised:
Accepted: 2023-11-20
Available online: 2023-11-29
Coalburst is one of the most serious disasters that threaten the safe production of coal mines, and this disaster is particularly serious in China. This paper presents an overview of coalbursts in China since 1980s. From the "stress and energy" and "regional and local" perspectives, the achievements in the theory, practice and management of coalbursts in China are systematically summarized. A theoretical system of coalbursts has been formed to reveal the deformational behavior of coalbursts and explain the mechanism of coalbursts. The occurrence conditions of coalbursts are put forward and the critical stress is obtained. The stress index method for risk evaluation of coalbursts before mining is proposed, and the deformation localization prediction method of coalbursts is put forward. The relationship between energy release and absorption in the process of coalbursts is found, and the prevention and control methods of coalbursts, including the regional method, the local method and support, are presented. The safety evaluation index of coalburst prevention and control is put forward. The integrated prevention and control method for coal and gas outbursts is proposed. The prevention and control technology and equipment of coalbursts have also been developed. Amongst them, the distribution law of the critical stress in China coalburst mines is discovered. The technology and equipment for monitoring, prevention and control of coalbursts, as well as for integrated prevention and control of combined coalbursts and other disasters, have been developed. The energy-absorbing and coalburst-preventing support technology for roadways is invented, and key engineering parameters of coalburst prevention and control are pointed out. In China, coalburst prevention and control laws and standards have been developed. Technical standards for coalbursts are formulated, statute and regulations for coal mines are established, and regulatory documents are promoted.
Keywords: Coalbursts, Rockbursts, Dynamic disaster, Energy-absorbing support, Monitoring and early warning
Article Data
Author(s) Information
Prof. Yishan Pan
panyishan@lnu.edu.cn
Prof. Yishan Pan is an Academician of the Chinese Academy of Engineering, and a Professor at Liaoning University. In 1999, he obtained a doctoral degree in solid mechanics from Tsinghua University. Dr. Pan has been continuously focusing on the prevention and control of coalbursts for 39 years, proposing the rockburst disturbance response instability theory, developing a series of predictive prevention and control technology equipment, and solving major key technical problems in rockburst prevention and control. He holds 3 National Science and Technology Awards and over 40 patents. He has led multiple national projects such as the National Natural Science Foundation of China and key research and development plans. Dr. Pan is the Vice Chairman of the China National Group of the International Society for Rock Mechanics and Rock Engineering (ISRM). He is the Vice Editor-in-chief of the Journal of Rock Mechanics and Geotechnical Engineering (JRMGE).