Fractal interpretation and forewarning of mining area disasters via microseismic time-space-energy nested

IF 3 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Physics and Chemistry of the Earth Pub Date : 2025-03-12 DOI:10.1016/j.pce.2025.103905

Congcong Zhao , Zilong Zhou , Dazhao Song

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引用次数: 0

Abstract

The mining of deep metal deposits faces frequent disasters such as ground pressure. Although microseismic monitoring technology is widely used, the nonlinear and disordered characteristics of its signals increase the difficulty of disaster prediction. To effectively process and analyze chaotic microseismic signals, and apply them to disaster warning in mining sites. We introduce fractal theory to conduct data analysis and fractal interpretation of microseismic data, thereby revealing the evolution laws of microseismic events. A new warning method based on spatiotemporal energy fractal dimension is proposed by combining theoretical analysis, numerical simulation, and field experiments. Taking a copper mine in Xinjiang as an example, microseismic monitoring technology is used to obtain time-space-energy parameters of rock mass failure, and fractal dimension is applied to characterize the state and development trend of rock mass failure. By studying the mechanical properties of rock masses and the time-space-energy evolution of microseismic activity, the effectiveness and practicality of rock mass regional failure characterization and forewarning methods based on microseismic monitoring have been verified. Specifically, when the time series is 3.26 days and the spatial unit is 6.97 m ∗ 7.88 m ∗ 1.67 m, and the maximum 25 % energy fractal dimension interval is used as the threshold, the event prediction rate is 96.875 %.

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来源期刊

Physics and Chemistry of the Earth 地学-地球科学综合

CiteScore

5.40

自引率

2.70%

发文量

176

审稿时长

31.6 weeks

期刊介绍： Physics and Chemistry of the Earth is an international interdisciplinary journal for the rapid publication of collections of refereed communications in separate thematic issues, either stemming from scientific meetings, or, especially compiled for the occasion. There is no restriction on the length of articles published in the journal. Physics and Chemistry of the Earth incorporates the separate Parts A, B and C which existed until the end of 2001. Please note: the Editors are unable to consider submissions that are not invited or linked to a thematic issue. Please do not submit unsolicited papers. The journal covers the following subject areas: -Solid Earth and Geodesy: (geology, geochemistry, tectonophysics, seismology, volcanology, palaeomagnetism and rock magnetism, electromagnetism and potential fields, marine and environmental geosciences as well as geodesy). -Hydrology, Oceans and Atmosphere: (hydrology and water resources research, engineering and management, oceanography and oceanic chemistry, shelf, sea, lake and river sciences, meteorology and atmospheric sciences incl. chemistry as well as climatology and glaciology). -Solar-Terrestrial and Planetary Science: (solar, heliospheric and solar-planetary sciences, geology, geophysics and atmospheric sciences of planets, satellites and small bodies as well as cosmochemistry and exobiology).