IMPLEMENTATION OF A FLAW MODEL TO THE FRACTURING AROUND A VERTICAL SHAFT

dc.contributor.author	Van de Steen B.
dc.contributor.author	Vervoort A.
dc.contributor.author	Napier J.A.L.
dc.contributor.author	Durrheim R.J.
dc.date.accessioned	2022-02-13T04:46:03Z
dc.date.available	2022-02-13T04:46:03Z
dc.date.issued	2003
dc.identifier	https://elibrary.ru/item.asp?id=5082687
dc.identifier.citation	Rock Mechanics and Rock Engineering, 2003, 36, 2, 143-161
dc.identifier.issn	0723-2632
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/35238
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, are formed 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.
dc.subject	FRACTURE MECHANICS
dc.subject	INSTABILITY
dc.subject	NUMERICAL SIMULATION
dc.subject	SHAFT EXCAVATION
dc.subject	BOUNDARY ELEMENTS
dc.title	IMPLEMENTATION OF A FLAW MODEL TO THE FRACTURING AROUND A VERTICAL SHAFT
dc.type	Статья

Files in this item

Name: Stee_03.pdf

Size: 516.9Kb

Format: PDF