ARTICLE
Study on characteristics of three-dimensional granular meso-reconstruction of coal gangue roadbed
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Zhi Sun 4,2
 
 
 
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1
School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing, China
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China State Construction Engineering Co., Ltd., Beijing, China
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Shandong Transportation Research Institute, Jinan, Shandong, China
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China Construction Infrastructure Co., Ltd., Beijing, China
CORRESPONDING AUTHOR
Bing Hui   

Shandong Transportation Research Institute, Jinan, 250102, 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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