Investigating the relationship between far-field stress and local values of the stress tensor
File(s)
Published version
OA Location
Author(s)
Gao, K
Harrison, J
Lei, Q
Latham, J-P
Type
Journal Article
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.
Date Issued
2017-06-21
Date Acceptance
2016-12-01
Citation
Procedia Engineering, 2017, 191, pp.536-542
ISSN
1877-7058
Publisher
Elsevier
Start Page
536
End Page
542
Journal / Book Title
Procedia Engineering
Volume
191
Copyright Statement
© 2017 The Authors. Published by Elsevier Ltd.
This is an open access article under the CC BY
-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
This is an open access article under the CC BY
-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Grant Number
GR/S42699/01
EP/H030123/1
Subjects
MD Multidisciplinary
Publication Status
Published
Coverage Spatial
Ostrava
Date Publish Online
2018-06-21