Investigation into Mechanism of Floor Dynamic Rupture by Evolution Characteristics of Stress and Mine Tremors: A Case Study in Guojiahe Coal Mine, China
Joint Authors
Liu, Guang-Jian
Mu, Zonglong
Javed, Atif
Gong, Shaokun
Yang, Jing
Cao, Jinglong
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-30
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
In order to explore the mechanism of floor dynamic rupture, the current study adopts a thin plate model to further investigate the condition of floor failure.
One of the possible explanations could be floor buckling due to high horizontal stress and dynamic disturbance ultimately leading to rapid and massive release of elastic energy thus inducing dynamic rupture.
Seismic computed tomography and 3D location were employed to explore the evolution characteristics of floor stress distribution and positions of mine tremors.
In the regions of floor dynamic rupture, higher P-wave velocity was recorded prior to the dynamic rupture.
On the contrary, relatively lower reading was observed after the dynamic rupture thus depicting a high stress concentration condition.
Meanwhile, evolution of mine tremors revealed the accumulation and subsequent release of energy during the dynamic rupture process.
It was further revealed that dynamic rupture was induced due to the superposition of static and dynamic stresses: (i) the high static stress concentration due to frontal and lateral abutment stress from coal pillar and (ii) dynamic stress from the fracture and caving of coal pillar, hard roof, and key stratum.
In the later part of this study, the floor dynamic rupture occurrence process would be reproduced through numerical simulations within a 0.6 sec time frame.
The above-mentioned findings would be used to propose a feasible mechanism for prewarning and prevention of floor dynamic rupture using seismic computed tomography and mine tremors 3D location.
American Psychological Association (APA)
Liu, Guang-Jian& Mu, Zonglong& Javed, Atif& Gong, Shaokun& Yang, Jing& Cao, Jinglong. 2018. Investigation into Mechanism of Floor Dynamic Rupture by Evolution Characteristics of Stress and Mine Tremors: A Case Study in Guojiahe Coal Mine, China. Shock and Vibration،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215178
Modern Language Association (MLA)
Liu, Guang-Jian…[et al.]. Investigation into Mechanism of Floor Dynamic Rupture by Evolution Characteristics of Stress and Mine Tremors: A Case Study in Guojiahe Coal Mine, China. Shock and Vibration No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1215178
American Medical Association (AMA)
Liu, Guang-Jian& Mu, Zonglong& Javed, Atif& Gong, Shaokun& Yang, Jing& Cao, Jinglong. Investigation into Mechanism of Floor Dynamic Rupture by Evolution Characteristics of Stress and Mine Tremors: A Case Study in Guojiahe Coal Mine, China. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215178
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215178