Evaluation of the Effects of Yielding Rockbolts on Controlling Self-Initiated Strainbursts: A Numerical Study

Evaluation of the Effects of Yielding Rockbolts on Controlling Self-Initiated Strainbursts: A Numerical Study

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In this paper, a 2D distinct element method (DEM) model of a deep tunnel in an underground coal mine is built to thoroughly evaluate the effects of yielding (D-bolt and Roofex) and the traditional rockbolt (fully resin-grouted rebar) on controlling self-initiated strainbursts. The occurrence of self...

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Bibliographic Details
Main Authors: Apel, D.B (Author), Skrzypkowski, K. (Author), Wang, J. (Author), Wei, C. (Author), Xu, H. (Author)
Format: Article
Language:English
Published: MDPI 2022
Subjects:
Bolts
Coal mines
Concrete construction
Deep tunnels
distinct element method
Distinct element methods
Grouting
Kinetic energy
Kinetics
Loading system
local mine stiffness
Local mine stiffness
Method model
Mortar
Numerical methods
numerical modeling
Numerical models
Resins
Rockbolts
Rocks
Stiffness
strainburst
Strainburst
Underground coal mine
underground mining
Underground mining
yielding rockbolt
Yielding rockbolt
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