Mechanical Characteristics and Failure Mechanism of Siltstone with Different Joint Thickness
Joint Authors
Li, Huigui
Yang, Zhengkai
Li, Huamin
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-24
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The mechanics of rock mass is significantly affected by joints, but many existing studies of jointed rocks make simplifications that do not consider the joint thickness.
To further study the influence of joint thickness on rock mechanics (mechanical properties, failure mechanism, damage model, etc.), we fabricated jointed siltstone specimens with different joint thickness (5, 10, 15, and 20 mm) and the specimens were subjected to uniaxial compression tests.
The effects of joint thickness on the uniaxial compression strength (UCS), the strain at UCS, the elastic modulus, and the stress-strain curves were thus analyzed.
For the stress-strain curve, with rising joint thickness, the upper concave in the initial compression stage intensified, the slope of the stress-strain in the elastic stage decreased, and the sudden stress drop after peak strength became more obvious.
Both the peak compression strength and the elastic modulus gradually decreased with rising joint thickness, but a positive correlation was found between the strain at UCS and the joint thickness.
American Psychological Association (APA)
Li, Huigui& Yang, Zhengkai& Li, Huamin. 2020. Mechanical Characteristics and Failure Mechanism of Siltstone with Different Joint Thickness. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1121436
Modern Language Association (MLA)
Li, Huigui…[et al.]. Mechanical Characteristics and Failure Mechanism of Siltstone with Different Joint Thickness. Advances in Civil Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1121436
American Medical Association (AMA)
Li, Huigui& Yang, Zhengkai& Li, Huamin. Mechanical Characteristics and Failure Mechanism of Siltstone with Different Joint Thickness. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1121436
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121436