Failure Behavior and Damage Characteristics of Coal at Different Depths under Triaxial Unloading Based on Acoustic Emission

Failure Behavior and Damage Characteristics of Coal at Different Depths under Triaxial Unloading Based on Acoustic Emission

The depth effect of coal mechanical behavior seriously affects the safety and efficiency of deep coal mining. To explore the differences in failure behavior and damage characteristics of coal masses at different depths during the coal mining process, based on the consideration of in situ stress envi...

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Bibliographic Details
Main Authors: Anlin Zhang, Ru Zhang, Mingzhong Gao, Zetian Zhang, Zheqiang Jia, Zhaopeng Zhang, Ersheng Zha
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Energies
Subjects:
coal
different depths
mining disturbance
acoustic emission (AE)
crack classification
failure behavior
Online Access:https://www.mdpi.com/1996-1073/13/17/4451

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