Since 1963
ARTICLE
Study on characteristics of three-dimensional granular meso-reconstruction of coal gangue roadbed
Zhi Sun
4,2
1
School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing, China
2
China State Construction Engineering Co., Ltd., Beijing, China
3
Shandong Transportation Research Institute, Jinan, Shandong, China
4
China Construction Infrastructure Co., Ltd., Beijing, China
Submission date: 2022-02-15
Final revision date: 2022-04-18
Acceptance date: 2022-04-22
Online publication date: 2022-06-11
Publication date: 2022-07-30
Journal of Theoretical and Applied Mechanics 2022;60(3):361-374
KEYWORDS
TOPICS
ABSTRACT
The dynamic evolution process of the coal gangue particles’ core retention phenomenon in
the process of crushing under stress, the evolution law of grading and the corresponding
microscopic mechanical characteristics after continuous particle crushing are analyzed. The
meso-level which reveals deformation phenomena of granular materials under the action of
external loads is highly complex. At the qualitative level, the static compaction process
of coal gangue samples can be roughly divided into three stages: initial compaction stage,
compaction and crushing stage, and crushing (compaction) stage. It is proved that the
interaction of lateral confined unidirectional compression of granular materials is mainly
compression.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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