The Influence of the Physical-Mechanical Parameters of Rock on the Extent of the Initial Failure Zone under the Action of an Undercut Anchor

This paper presents the results of a numerical FEM (Finite Element Method) simulation of the formation of a rock failure zone in its initial stage of development. The influence of rock parameters, such as the Young's modulus, Poisson's ratio and friction factor of the rock in the contact z...

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Bibliographic Details
Published in:Materials 2021-04, Vol.14 (8), p.1841
Main Authors: Jonak, Józef, Karpiński, Robert, Wójcik, Andrzej, Siegmund, Michał
Format: Article
Language:English
Subjects:
Concrete
Crack propagation
Design techniques
Field tests
Finite element analysis
Finite element method
Friction
Friction factor
Mechanical properties
Modulus of elasticity
Parameters
Poisson's ratio
Propagation
Raw materials
Simulation
Tensile strength
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Summary:This paper presents the results of a numerical FEM (Finite Element Method) simulation of the formation of a rock failure zone in its initial stage of development. The influence of rock parameters, such as the Young's modulus, Poisson's ratio and friction factor of the rock in the contact zone with the working surface of the undercut anchor head, were taken into account. The obtained results of FEM simulations were compared with the results of field tests conducted in Polish mining plants extracting rock raw materials.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma14081841