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Warning Method of Coal Bursting Failure Danger by Electromagnetic Radiation
Joint Authors
Lu, Caiping
Liu, Guang-Jian
Wang, Hong-Yu
Liu, Peng-Fei
Liu, Yang
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-21
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Electromagnetic radiation (EMR) can reflect the stress state and deformation level of coal, yet its warning indexes correlated with coal properties and roof caving is poorly understood.
The laboratory observations of EMR effects of coal samples bursting failure and in situ investigations in the process of roof caving are presented in this paper.
EMR peak with increasing stress is discussed when the failure of coal samples happens, which provides an explanation to EMR signals positively correlated well with the stress loaded.
The linearly increasing relation is also found between EMR intensity and the uniaxial compressive strength, and EMR maximum amplitudes and pulses behave a logarithmic accretion tendency with bursting energy indexes of coal.
By in situ investigations, it is well found that EMR amplitude can effectively warn coal deformation and failure based on the critical value 120 mV proposed from experiments.
American Psychological Association (APA)
Liu, Guang-Jian& Lu, Caiping& Wang, Hong-Yu& Liu, Peng-Fei& Liu, Yang. 2015. Warning Method of Coal Bursting Failure Danger by Electromagnetic Radiation. Shock and Vibration،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1078204
Modern Language Association (MLA)
Liu, Guang-Jian…[et al.]. Warning Method of Coal Bursting Failure Danger by Electromagnetic Radiation. Shock and Vibration No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1078204
American Medical Association (AMA)
Liu, Guang-Jian& Lu, Caiping& Wang, Hong-Yu& Liu, Peng-Fei& Liu, Yang. Warning Method of Coal Bursting Failure Danger by Electromagnetic Radiation. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1078204
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1078204