An inelastic stress integration algorithm for a rock mass containing sets of discontinuities

The mechanical behaviour of a rock mass is described in this paper using a method that combines experimental and numerical techniques. A new discontinuity (joint) constitutive model is proposed based on the non-associative yield law. Constitutive relationships for an anisotropic rock mass are determ...

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Bibliographic Details
Published in:Acta geotechnica 2013-06, Vol.8 (3), p.265-278
Main Authors: Grujovic, Nenad, Divac, Dejan, Zivkovic, Miroslav, Slavkovic, Radovan, Milivojevic, Nikola, Milivojevic, Vladimir, Rakic, Dragan
Format: Article
Language:English
Subjects:
Algorithms
Complex Fluids and Microfluidics
Constitutive relationships
Discontinuity
Engineering
Field tests
Foundations
Geoengineering
Geotechnical Engineering & Applied Earth Sciences
Hydraulics
Mathematical models
Research Paper
Rivers
Rock
Rocks
Soft and Granular Matter
Soil Science & Conservation
Solid Mechanics
Stress analysis
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Summary:The mechanical behaviour of a rock mass is described in this paper using a method that combines experimental and numerical techniques. A new discontinuity (joint) constitutive model is proposed based on the non-associative yield law. Constitutive relationships for an anisotropic rock mass are determined by introducing an interaction between sets of discontinuities and the monolith in which they occur. The model is based on the concept that deformation of the monolith and its associated sets of discontinuities are coupled. An experimental investigation of the concrete foundations of the Bogovina Dam on the Crni Timok River in Serbia has been used to verify the presented numerical model. The tests included discontinuity and monolith sample investigations and large-scale field tests.
ISSN:1861-1125
1861-1133
DOI:10.1007/s11440-012-0194-3