Resistivity and AE Response Characteristics in the Failure Process of CGB under Uniaxial Loading
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-10
Country of Publication
Egypt
No. of Pages
11
Abstract EN
To understand the characteristics of the acoustic emission (AE) and electrical resistivity of cemented coal gangue backfill (CGB) under uniaxial compression, the variations in these characteristics at 1 day, 3 days, and 7 days are analyzed by means of a stress-strain-resistivity-AE test, and the microperformances are investigated.
The research results indicate that the AE can reflect the initiation and propagation of cracks and later explain the variation of the resistivity of the specimens under the uniaxial loading.
The cumulative energy curve of AE is approximately two straight lines corresponding to the peak stress, and the difference in the linear slope gradually decreased with the increasing curing time due to the lower pore solution content and the compact pore structure.
The relationships between the stress and resistivity and the loading condition before and after the peak stress at different curing times were established.
Therefore, it is of great significance to predict the stability of the filling body by monitoring the AE and resistivity variations of the filling body.
In addition, it is possible to calculate the roof stress using the relation equation between the resistivity and stress.
American Psychological Association (APA)
Qi, Tingye& Feng, Guo-rui. 2017. Resistivity and AE Response Characteristics in the Failure Process of CGB under Uniaxial Loading. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1124752
Modern Language Association (MLA)
Qi, Tingye& Feng, Guo-rui. Resistivity and AE Response Characteristics in the Failure Process of CGB under Uniaxial Loading. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1124752
American Medical Association (AMA)
Qi, Tingye& Feng, Guo-rui. Resistivity and AE Response Characteristics in the Failure Process of CGB under Uniaxial Loading. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1124752
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1124752