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Studia Geotechnica et Mechanica

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Rock Strength Anisotropy in High Stress Conditions: A Case Study for Application to Shaft Stability Assessments

Julian Matthew Watson
  • Geotechnical Engineering & Hydrogeology, KGHM International, Ltd., Suite 202 – 8105 Birch Bay Square St, Blaine, WA, USA 98230
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/ Abouzar Vakili / Mateusz Jakubowski
Published Online: 2015-03-27 | DOI: https://doi.org/10.1515/sgem-2015-0013


Although rock strength anisotropy is a well-known phenomenon in rock mechanics, its impact on geotechnical design is often ignored or underestimated. This paper explores the concept of anisotropy in a high stress environment using an improved unified constitutive model (IUCM), which can account for more complex failure mechanisms. The IUCM is used to better understand the typical responses of anisotropic rocks to underground mining. This study applies the IUCM to a proposed rock shaft located in high stress/anisotropic conditions. Results suggest that the effect of rock strength anisotropy must be taken into consideration when assessing the rock mass response to mining in high stress and anisotropic rock conditions.

Keywords: anisotropy; high stress; numerical modeling; constitutive model


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About the article

Published Online: 2015-03-27

Published in Print: 2015-03-01

Citation Information: Studia Geotechnica et Mechanica, Volume 37, Issue 1, Pages 115–125, ISSN (Online) 2083-831X, ISSN (Print) 0137-6365, DOI: https://doi.org/10.1515/sgem-2015-0013.

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© by Julian Matthew Watson. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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