Characteristics of Direct Shear and Particle Breakage of Pebble Gravel Materials
Joint Authors
Huang, Man
Hong, Chenjie
Zhang, Danyu
Shou, Pingshan
Zhu, Zhiyong
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-04
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Particle size is an important factor affecting the Thermal-Hydraulic-Mechanical (THM) coupling behavior of graveled rock mass, especially for the shear mechanical properties.
In this study, three groups of the particle size range and nine particle grading samples are designed for a large-scale direct shear test.
The relationships between shear stress and shear displacement, shear strength, stress ratio, shear strength parameters, and particle breakage of pebble gravel are analyzed.
The influence of particle size range and grade on the strength and particle breakage of gravel material is discussed.
Results show evident particle breakage in the process of direct shear, and the degree of fragmentation is controlled by the normal load and the particle size distribution of the sample.
The shear strength of the sample is no longer applicable to Mohr-Coulomb strength theory because of particle breakage that is more in line with the power function relationship.
Shear strength of pebble gravel material has scale effect, and a corresponding relationship model between friction coefficient f of material and characteristic particle size of the sample is proposed.
American Psychological Association (APA)
Hong, Chenjie& Huang, Man& Zhang, Danyu& Shou, Pingshan& Zhu, Zhiyong. 2020. Characteristics of Direct Shear and Particle Breakage of Pebble Gravel Materials. Geofluids،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1165474
Modern Language Association (MLA)
Hong, Chenjie…[et al.]. Characteristics of Direct Shear and Particle Breakage of Pebble Gravel Materials. Geofluids No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1165474
American Medical Association (AMA)
Hong, Chenjie& Huang, Man& Zhang, Danyu& Shou, Pingshan& Zhu, Zhiyong. Characteristics of Direct Shear and Particle Breakage of Pebble Gravel Materials. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1165474
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1165474