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A Case Study of Damage Energy Analysis and an Early Warning by Microseismic Monitoring for Large Area Roof Caving in Shallow Depth Seams
Joint Authors
Qi, Qingxin
Wei, Like
Li, Hongyan
Zhang, Bin
Wang, Yongren
Kong, Linghai
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
Shallow depth coal seams are widely spread in Shendong mining area, which is located in the Northwestern region of China.
When working face is advanced out of concentrated coal pillar in upper room and pillar goaf, strong strata behaviors often cause support crushing accidents, and potentially induce large area residual pillars instability and even wind blast disaster.
In order to predict the precise time when the accident happens, guaranteeing life-safety of miner, microseismic monitoring system was for the first time applied in shallow coal seam.
Based on damage mechanics correlation theory, the damage energy model is established to describe relationship between damage level and cumulative energy of microseismic events.
According to microseismic monitoring data of two support crushing accidents, the damage energy model is verified and an effective early warning method of these accidents is proposed.
The field application showed that the early warning method had avoided miners suffering from all support crushing accidents in Shigetai coal mine.
American Psychological Association (APA)
Wei, Like& Qi, Qingxin& Li, Hongyan& Zhang, Bin& Wang, Yongren& Kong, Linghai. 2015. A Case Study of Damage Energy Analysis and an Early Warning by Microseismic Monitoring for Large Area Roof Caving in Shallow Depth Seams. Shock and Vibration،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1078312
Modern Language Association (MLA)
Wei, Like…[et al.]. A Case Study of Damage Energy Analysis and an Early Warning by Microseismic Monitoring for Large Area Roof Caving in Shallow Depth Seams. Shock and Vibration No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1078312
American Medical Association (AMA)
Wei, Like& Qi, Qingxin& Li, Hongyan& Zhang, Bin& Wang, Yongren& Kong, Linghai. A Case Study of Damage Energy Analysis and an Early Warning by Microseismic Monitoring for Large Area Roof Caving in Shallow Depth Seams. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1078312
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1078312