4th International Conference on Advances in Energy Resources and Environment Engineering | |
Multifractal characteristics of gas disaster accident in coal mine | |
能源学;生态环境科学 | |
Wang, Zhenjiang^1^2 ; Wu, Guang^1 ; Qin, Qirong^1 ; Tian, Kunyun^2 ; Wang, Gongzhong^2 | |
School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan | |
610500, China^1 | |
School of Safety Engineering, Henan University of Engineering, Zhengzhou, Henan | |
451191, China^2 | |
关键词: Coal and gas outburst; Complex nonlinear dynamics; Disaster system; Gas explosions; Multi-fractal spectrum; Multifractal characteristics; Multifractal detrended fluctuation analysis; Multifractal theory; | |
Others : https://iopscience.iop.org/article/10.1088/1755-1315/237/4/042018/pdf DOI : 10.1088/1755-1315/237/4/042018 |
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学科分类:环境科学(综合) | |
来源: IOP | |
【 摘 要 】
In order to explore the law of development and the characteristics of evolution of death toll caused by gas disasters in coal mine, with the multifractal detrended fluctuation analysis (MF-DFA) method, we analyzed the three time series of death toll caused by gas disaster, coal and gas outburst, and gas explosions in coal mine from 2006-2015 in China. It concluded that all of three time series have multifractal characteristics, the multifractal spectrum width Δtc > Δbz > Δws, and the largest fluctuation and multifractal intensity of death toll time series of coal and gas outburst. The multifractal spectrum function f is right hook-shape, and the Δf
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