In Situ Test Study of Characteristics of Coal Mining Dynamic Load
Joint Authors
He, Jiang
Dou, Lin-Ming
Cai, Wu
Li, Zhen-Lei
Ding, Yan-Lu
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-02-18
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Combination of coal mining dynamic load and high static stress can easily induce such dynamic disasters as rock burst, coal and gas outburst, roof fall, and water inrush.
In order to obtain the characteristic parameters of mining dynamic load and dynamic mechanism of coal and rock, the stress wave theory is applied to derive the relation of mining dynamic load strain rate and stress wave parameters.
The in situ test was applied to study the stress wave propagation law of coal mine dynamic load by using the SOS microseismic monitoring system.
An evaluation method for mining dynamic load strain rate was proposed, and the statistical evaluation was carried out for the range of strain rate.
The research results show that the loading strain rate of mining dynamic load is in direct proportion to the seismic frequency of coal-rock mass and particle peak vibration velocity and is in inverse proportion to wave velocity.
The high-frequency component damps faster than the low-frequency component in the shockwave propagating process; and the peak particle vibration velocity has a power functional relationship with the transmitting distance.
The loading strain rate of mining dynamic load is generally less than class 10−1/s.
American Psychological Association (APA)
He, Jiang& Dou, Lin-Ming& Cai, Wu& Li, Zhen-Lei& Ding, Yan-Lu. 2015. In Situ Test Study of Characteristics of Coal Mining Dynamic Load. Shock and Vibration،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1077919
Modern Language Association (MLA)
He, Jiang…[et al.]. In Situ Test Study of Characteristics of Coal Mining Dynamic Load. Shock and Vibration No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1077919
American Medical Association (AMA)
He, Jiang& Dou, Lin-Ming& Cai, Wu& Li, Zhen-Lei& Ding, Yan-Lu. In Situ Test Study of Characteristics of Coal Mining Dynamic Load. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1077919
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1077919