Effect of the Confining Pressure on the Dynamic Compression Properties of Transversely Isotropic Rocks
Joint Authors
Zhang, Cong
Ou, Xuefeng
Zhang, Xuemin
Feng, Han
Yang, Junsheng
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-01
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The dynamic compression properties of transversely isotropic rocks and their dependence on the confining pressure and bedding directivity are important in deep underground engineering activities.
In this study, a slate is characterized using a split Hopkinson pressure bar (SHPB) test.
Five groups of samples with preferred bedding directions (dip angles of 0°, 30°, 45°, 60°, and 90°) are subjected to coupled axial impact loading (low, medium, and high) under confining pressure (0, 5, and 10 MPa).
The failure mode, dynamic strength, and Young’s modulus are investigated.
The test results show that the tensile splitting effect is significant when there is no confining pressure.
However, under a confining pressure (5 and 10 MPa) condition, the cracks that develop along the loading direction can be significantly constrained and the samples are forced to fail along the bedding plane.
With increasing confining pressure, the critical dynamic strength significantly increases, and Young’s modulus increases when θ≥45° while it decreases when θ≤30°.
American Psychological Association (APA)
Ou, Xuefeng& Zhang, Xuemin& Feng, Han& Zhang, Cong& Yang, Junsheng. 2019. Effect of the Confining Pressure on the Dynamic Compression Properties of Transversely Isotropic Rocks. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1116463
Modern Language Association (MLA)
Ou, Xuefeng…[et al.]. Effect of the Confining Pressure on the Dynamic Compression Properties of Transversely Isotropic Rocks. Advances in Civil Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1116463
American Medical Association (AMA)
Ou, Xuefeng& Zhang, Xuemin& Feng, Han& Zhang, Cong& Yang, Junsheng. Effect of the Confining Pressure on the Dynamic Compression Properties of Transversely Isotropic Rocks. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1116463
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116463