Multi-fractal characteristics of electromagnetic radiation with loaded coal

被引：0
|
作者：
Yao J.-M. [1 ,2 ]
Dong W.-S. [1 ,2 ]
Yan Y.-Y. [3 ]
Hao S.-Z. [1 ,2 ]
Wang L. [1 ,2 ]
机构：
[1] State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing
[2] College of Resources and Environmental Science, Chongqing University, Chongqing
[3] School of Mechanics and Electronics, Henan Institute of Science and Technology, Xinxiang
来源：
Meitan Xuebao/Journal of the China Coal Society | 2016年 / 41卷 / 06期
关键词：
Coal; Electromagnetic emission; Multi-fractal;
D O I：
10.13225/j.cnki.jccs.2015.2001
中图分类号：
学科分类号：
摘要：
The EME multi-fractal evolution laws during the deformation and failure processes of coal samples were studied based on fractal theory and laboratory experiment. The results show that the multi-fractal characteristic of EME series is verified. The width of multi-fractal dimension (ΔDq) is closely related to the coal and rock stress, and the width of multi-fractal dimension (ΔDq) usually increases with the increase of coal and rock stress. When coal and rock mainly rupture, it reaches a maximum 0.27, then drops to 0.20~0.22. The characteristic parameters vary with the process of deformation and fracture of coal sample with load. The width of multi-fractal dimension (ΔDq) can be used for evaluating the deformation and failure of loaded coal. © 2016, Editorial Office of Journal of China Coal Society. All right reserved.
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页码：1429 / 1433
页数：4
相关论文
共 15 条
  • [1] He X., Dou L., Mou Z., Et al., Continuous monitoring and warning the orytechnology of rock burst dynamic disaster of coal, Journal of China Coal Society, 39, 8, pp. 1485-1491, (2014)
  • [2] Wang Y., Wei J., Sun H., Mechanism analysis and prevention of coal and rock dynamic disaster, Mining Safety & Environmental Protection, 37, 2, pp. 17-19, (2010)
  • [3] Pan Y., Tang Z., Li Z., Et al., Research on the charge inducing regularity of coal at different loading rate in uniaxial compression tets, Chinese Journal of Geophys., 56, 3, pp. 1043-1048, (2013)
  • [4] Jiang Y., Zhao Y., State of the art investigation on mechanism forecast and control of coal bumps in China, Chinese Journal of Rock Mechanics and Engineering, 34, 11, pp. 2188-2204, (2015)
  • [5] Pan J., Mao D., Lan H., Et al., Study status and prospects of mine pressure bumping control technology in China, Coal Science and Technology, 41, 6, pp. 21-26, (2013)
  • [6] Zhao S., Liu J., Wei X., Et al., Theory and application of rock burst prevention using deep hole high pressure hydraulic fracturing, Internation Journal of Coal Science & Technology, 19, 2, pp. 136-142, (2013)
  • [7] Wang E., He X., Liu Z., Research progress of electromagnetic radiation characteristics of coal rock and its application, Progress in Natural Science, 16, 5, pp. 532-536, (2006)
  • [8] Dou L., Wang Y., He X., Et al., Study on electromagnetic emission characteristic for coal sample deformation and failure during pre-and post-peaking phases, Chinese Journal of Rock Mechanics and Engineering, 26, 5, pp. 908-914, (2007)
  • [9] Yao J., Shui G., Wang X., Application of coupling between EME and energy dissipation during deformation and fracture of coal rock mass, Journal of Liaoning Technical University(Natural Science), 28, 3, pp. 345-348, (2009)
  • [10] He X., Nie B., Wang E., Et al., Electromagnetic emission forecasting technology of coal or rock dynamic disaster in mine, Journal of China Coal Society, 32, 1, pp. 56-59, (2007)
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