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Comparison between stress and strain quantities of the failure-deformation process of Fennoscandian hard rocks using geological information
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-9766-0106
2013 (English)In: Rock Mechanics and Rock Engineering, ISSN 0723-2632, E-ISSN 1434-453X, Vol. 46, no 1, p. 41-51Article in journal (Refereed) Published
Abstract [en]

The aim of this paper was to compare the stress and strain quantities that are related to the failure-deformation process of hard rock. The data used here was obtained from laboratory uniaxial compression tests performed on different types of Fennoscandian hard rocks. The failure-deformation process quantities were compared at each deformation stage and for each single specimen. Moreover, geological information such as the rock origin process and the rock characteristics of the specimens were studied and linked to the stress and strain quantities. The purpose was to investigate the influence of the rock origin process and rock characteristics on these quantities. The main results of this study showed that the normalized crack damage lateral strain (ε 3cd/ε 3 p) and the volumetric strain (ε crv-ci and ε v-cd) quantities were strongly affected by the grain size. The normalized and volumetric quantities are weakly dependent on the mineral composition

Place, publisher, year, edition, pages
2013. Vol. 46, no 1, p. 41-51
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-9477DOI: 10.1007/s00603-012-0242-1ISI: 000313094000003Scopus ID: 2-s2.0-84872340548Local ID: 81e9b595-48c4-4d4c-bb29-cf4ad40926c6OAI: oai:DiVA.org:ltu-9477DiVA, id: diva2:982415
Note
Validerad; 2013; 20120330 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Pérez, KelvisNordlund, Erling

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