Investigating the Relationship Between Far-Field Stress and Local Values of the Stress Tensor
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Author / Producer
Date
2017
Publication Type
Conference Paper
ETH Bibliography
no
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Abstract
In situ stress is an important parameter in rock mechanics, thus robust estimation of far–field stress to be used as boundary loadings for further rock engineering analysis based on the local in situ stress data seems indispensable. Here, as part of a preliminary investigation into this problem, we use the combined finite–discrete element method to examine how the mean of local stress tensors is related to the far–field stress. We have conducted a series of stress simulations on a model of a fractured rock mass subjected to various boundary loadings, and calculated the Euclidean mean of the stress data and compared them with the boundary loadings. The results shows that the Euclidean mean and boundary loadings are approximately equal, which gives us an indication that the Euclidean mean of the stress data can be a reasonable estimation of the far–field stress.
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Publication status
published
External links
Book title
ISRM European Rock Mechanics Symposium, EUROCK 2017
Journal / series
Volume
191
Pages / Article No.
536 - 542
Publisher
Elsevier
Event
ISRM European Rock Mechanics Symposium (EUROCK 2017)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Stress tensor; Far-field stress; Euclidean mean; Boundary loadings; Stress heterogeneity; FEMDEM
Organisational unit
02704 - Geologisches Institut / Geological Institute