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Open AccessArticle
Damage Status and Failure Precursors of Different Coal Impact Types Based on Comprehensive Monitoring of Infrared Radiation and Acoustic Emission
by
Shan Yin
Shan Yin
Dr. Shan Yin graduated from the Safety Science and Engineering Department of the University of and a [...]
Dr. Shan Yin graduated from the Safety Science and Engineering Department of the University of Science and Technology Beijing in June 2022 with a Ph.D. in Engineering. He joined the Postdoctoral Research Station of Safety Science and Engineering of China University of Mining and Technology in May 2022 and joined the School of Safety Engineering of China University of Mining and Technology in June. He is mainly engaged in the research of the theory and technology of monitoring and early warning of coal-rock dynamic disasters in underground engineering. He presided over the Excellent Postdoctoral Talent Program of Jiangsu Province. As a backbone member, he participated in the completion of several national, provincial and ministerial scientific research projects and enterprise-commissioned projects such as the National Natural Science Foundation Key Project, the National Natural Science Foundation General Project, and the Shandong Province Major Science and Technology Innovation Project. He has conducted in-depth research on the laws of various geophysical effects such as magnetic fields, electromagnetic radiation, infrared radiation, and acoustic emission of coal-rock dynamic disasters in underground engineering.
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Zhonghui Li
Zhonghui Li
Prof. Zhonghui Li is a professor and doctoral supervisor at China University of Mining and He is the [...]
Prof. Zhonghui Li is a professor and doctoral supervisor at China University of Mining and Technology. He is currently the deputy director of the National Engineering Research Center for Coal Mine Gas Control and the deputy director of the Institute of Coal Rock Gas Dynamic Disasters of China University of Mining and Technology. He is mainly engaged in the research of coal rock physical mechanics and coal rock gas dynamic disaster monitoring and forecasting technology. In 2007, he obtained a Doctorate in safety engineering from China University of Mining and Technology and stayed at the university to teach in the same year. In 2009, he won the National 100 Outstanding Doctoral Dissertations. From 2010 to 2011, he served as an assistant to the mine manager at Xinzhi Coal Mine of Huozhou Coal and Electricity Group; from 2013 to 2014, he was a visiting scholar at the School of Earth and Space Sciences of Peking University. He was selected into the 2010 Ministry of Education New Century Excellent Talent Support Program, the 2010 Jiangsu Province “Qinglan Project” Outstanding Young Backbone Teacher, the 2011 Jiangsu Province “333” High-level Talent Training Program, and the 2015 Jiangsu Provincial Science and Technology Journal Society Selected Chief Expert (Engineer) in Coal Mines.
Enyuan Wang
Enyuan Wang
Yubing Liu
Yubing Liu
Prof. Yubing Liu is an associate professor and master’s supervisor at China University of Mining a [...]
Prof. Yubing Liu is an associate professor and master’s supervisor at China University of Mining and Technology. In 2015, he received a bachelor’s degree in mining engineering from Chongqing University. In the same year, he was recommended to pursue a doctorate in mining engineering from Chongqing University. In 2018, he went to Curtin University in Australia for a one-and-a-half-year joint training. In 2020, he received a doctorate in mining engineering from Chongqing University. During this period, he won the National Scholarship for Doctoral Students (2 times), Chongqing Outstanding Graduate Student, Baosteel Outstanding Student Award, and other honors. In July 2020, he joined the School of Safety Engineering of China University of Mining and Technology. His research directions include the mechanism and prevention of coal-rock dynamic disasters, true triaxial solid/gas coupling theory, and the deformation and failure mechanism of coal and rock under complex stress conditions.
Yue Niu
Yue Niu
Prof. Yue Niu is an associate professor at the National Key Laboratory of Intelligent Construction [...]
Prof. Yue Niu is an associate professor at the National Key Laboratory of Intelligent Construction and Healthy Operation of Deep Earth Engineering at China University of Mining and Technology. He received his Ph.D. in Safety Science and Engineering from China University of Mining and Technology in 2020. He is mainly engaged in scientific research in the theory and application of deep nonlinear rock mechanics, prevention and control of dynamic disasters and healthy operation of deep-earth engineering, and fluidization development and utilization of deep solid resources.
Hengze Yang
Hengze Yang
1
Key Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Xuzhou 221116, China
2
State Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China
3
Key Laboratory of Theory and Technology on Coal and Rock Dynamic Disaster Prevention and Control, National Mine Safety Administration, China University of Mining and Technology, Xuzhou 221116, China
4
School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2024, 14(19), 8792; https://doi.org/10.3390/app14198792 (registering DOI)
Submission received: 24 August 2024
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Revised: 19 September 2024
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Accepted: 26 September 2024
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Published: 29 September 2024
Abstract
Different coal failure impact types exhibit different damage statuses and failure modes, resulting in distinct signal characteristics of infrared radiation (IR) and acoustic emission (AE). This paper combines IR and AE monitoring methods to innovatively establish coal damage and failure precursor warning models and obtains the IR and AE precursor characteristics for different coal failure impact types. This research shows that there is a good correspondence between IR and AE timing and spatial distribution of different coal impact types. As the impact tendency increases, the intensity of IR and AE signals increases with coal failure, and the AE positioning points and IR high-temperature areas tend to concentrate. The coal body gradually changes from tensile failure to shear failure. The shear cracks in the failure stage of coal with no, weak, and strong impact are 39.9%, 50.9%, and 53.7%, respectively. The IR and AE instability precursor point of coal with no, weak, and strong impact occurred at 55.2%, 66.3%, and 93.4% of coal failure, respectively. After the IR and AE combined instability precursor point, the dissipated energy and combined damage variable increase rapidly, and the coal body will undergo instability and failure. The research results provide a theoretical basis for comprehensive monitoring of coal body failure and rock burst.
Share and Cite
MDPI and ACS Style
Yin, S.; Li, Z.; Wang, E.; Liu, Y.; Niu, Y.; Yang, H.
Damage Status and Failure Precursors of Different Coal Impact Types Based on Comprehensive Monitoring of Infrared Radiation and Acoustic Emission. Appl. Sci. 2024, 14, 8792.
https://doi.org/10.3390/app14198792
AMA Style
Yin S, Li Z, Wang E, Liu Y, Niu Y, Yang H.
Damage Status and Failure Precursors of Different Coal Impact Types Based on Comprehensive Monitoring of Infrared Radiation and Acoustic Emission. Applied Sciences. 2024; 14(19):8792.
https://doi.org/10.3390/app14198792
Chicago/Turabian Style
Yin, Shan, Zhonghui Li, Enyuan Wang, Yubing Liu, Yue Niu, and Hengze Yang.
2024. "Damage Status and Failure Precursors of Different Coal Impact Types Based on Comprehensive Monitoring of Infrared Radiation and Acoustic Emission" Applied Sciences 14, no. 19: 8792.
https://doi.org/10.3390/app14198792
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