GA-Based Early Warning Method for Rock Burst with Microseismic and Acoustic Emission in Steeply Inclined Coal Seam
Joint Authors
Chen, Jianqiang
Xue, Yarong
Song, Dazhao
Li, Zhenlei
He, Xueqiu
He, Shengquan
Li, Donghui
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-03
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
Aiming at problem of low efficacy of early warning of rock burst in coal mine, a multisystem and multiparameter integrated early warning method based on genetic algorithm (GA) is proposed.
In this method, firstly, the temporal-spatial-intensity information of energy incubation process of rock burst is deeply mined, and the multidimensional precursory characteristic parameter system of rock burst is constructed.
Secondly, the genetic algorithm is used to train the historical monitoring data to obtain the optimal critical value and fitness value of each precursory characteristic parameter, and then the early warning index WC of each monitoring system is calculated.
Finally, the integrated rock burst early warning index IC is obtained by synthesizing the early warning index WC of each system.
The value of IC corresponds to the specific rock burst risk level of the mine.
This method is applied to Wudong coal mine in Xinjiang, China.
Based on the actual situation of the mine, a multidimensional precursory characteristic parameter system of rock burst is constructed, which includes energy deviation (DE), frequency ratio (Fr), frequency deviation (DF), degree of dispersion (DS), and total high value of energy deviation (DH).
After analyzing the rock burst danger status and risk level in the monitoring area, the early warning capability of this method is found to reach 0.896.
Combining with the specific prevention and control measures corresponding to different rock burst risk levels, it can provide effective guidance for the field work.
American Psychological Association (APA)
Xue, Yarong& Song, Dazhao& Li, Zhenlei& Chen, Jianqiang& He, Xueqiu& He, Shengquan…[et al.]. 2020. GA-Based Early Warning Method for Rock Burst with Microseismic and Acoustic Emission in Steeply Inclined Coal Seam. Shock and Vibration،Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1213035
Modern Language Association (MLA)
Xue, Yarong…[et al.]. GA-Based Early Warning Method for Rock Burst with Microseismic and Acoustic Emission in Steeply Inclined Coal Seam. Shock and Vibration No. 2020 (2020), pp.1-16.
https://search.emarefa.net/detail/BIM-1213035
American Medical Association (AMA)
Xue, Yarong& Song, Dazhao& Li, Zhenlei& Chen, Jianqiang& He, Xueqiu& He, Shengquan…[et al.]. GA-Based Early Warning Method for Rock Burst with Microseismic and Acoustic Emission in Steeply Inclined Coal Seam. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1213035
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1213035