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Implementation of a flaw model to the fracturing around a vertical shaft

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dc.contributor.author Van de Steen, B en_US
dc.contributor.author Vervoort, A en_US
dc.contributor.author Napier, JAL en_US
dc.contributor.author Durrheim, RJ en_US
dc.date.accessioned 2007-02-06T08:34:08Z en_US
dc.date.accessioned 2007-06-07T10:04:13Z
dc.date.available 2007-02-06T08:34:08Z en_US
dc.date.available 2007-06-07T10:04:13Z
dc.date.issued 2003-04 en_US
dc.identifier.citation Van de Steen, B, et al. 2003. Implementation of a flaw model to the fracturing around a vertical shaft. Rock mechanics and rock engineering, vol 36(2), pp 143-161 en_US
dc.identifier.issn 0723-2632 en_US
dc.identifier.uri http://hdl.handle.net/10204/1472 en_US
dc.identifier.uri http://hdl.handle.net/10204/1472
dc.description.abstract This paper investigates whether a micromechanical model developed to investigate the relation between the basic failure processes at grain-scale and the macroscopic failure pattern can be applied to model the fracturing around large-scale excavations. The simulated fracture pattern around a vertical shaft is compared to the fracturing around a shaft at a depth of 3400 m. The simulations suggest that wedge-shaped zones, called dog-ears, a reformed by a progressive splitting-like failure of the rock. The fractures forming these slabs nucleate in the zones subjected to the highest compressive stresses. Both shear and tensile mechanisms are responsible for the fracturing. The dog-ears deepen and widen as spalling continues. en_US
dc.format.extent 529383 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en en_US
dc.publisher Springer-Verlag Wien en_US
dc.rights Copyright: 2003 Springer-Verlag Wien en_US
dc.subject Fracture mechanics en_US
dc.subject Numerical simulation en_US
dc.subject Shaft excavations en_US
dc.subject Boundary elements en_US
dc.title Implementation of a flaw model to the fracturing around a vertical shaft en_US
dc.type Article en_US
dc.identifier.apacitation Van de Steen, B., Vervoort, A., Napier, J., & Durrheim, R. (2003). Implementation of a flaw model to the fracturing around a vertical shaft. http://hdl.handle.net/10204/1472 en_ZA
dc.identifier.chicagocitation Van de Steen, B, A Vervoort, JAL Napier, and RJ Durrheim "Implementation of a flaw model to the fracturing around a vertical shaft." (2003) http://hdl.handle.net/10204/1472 en_ZA
dc.identifier.vancouvercitation Van de Steen B, Vervoort A, Napier J, Durrheim R. Implementation of a flaw model to the fracturing around a vertical shaft. 2003; http://hdl.handle.net/10204/1472. en_ZA
dc.identifier.ris TY - Article AU - Van de Steen, B AU - Vervoort, A AU - Napier, JAL AU - Durrheim, RJ AB - This paper investigates whether a micromechanical model developed to investigate the relation between the basic failure processes at grain-scale and the macroscopic failure pattern can be applied to model the fracturing around large-scale excavations. The simulated fracture pattern around a vertical shaft is compared to the fracturing around a shaft at a depth of 3400 m. The simulations suggest that wedge-shaped zones, called dog-ears, a reformed by a progressive splitting-like failure of the rock. The fractures forming these slabs nucleate in the zones subjected to the highest compressive stresses. Both shear and tensile mechanisms are responsible for the fracturing. The dog-ears deepen and widen as spalling continues. DA - 2003-04 DB - ResearchSpace DP - CSIR KW - Fracture mechanics KW - Numerical simulation KW - Shaft excavations KW - Boundary elements LK - https://researchspace.csir.co.za PY - 2003 SM - 0723-2632 T1 - Implementation of a flaw model to the fracturing around a vertical shaft TI - Implementation of a flaw model to the fracturing around a vertical shaft UR - http://hdl.handle.net/10204/1472 ER - en_ZA


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