Modeling Deformation Processes in Self-Stressed Rock Specimens
S. V. LAVRIKOV, A. F. REVUZHENKO
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: горная порода, внутренняя структура, собственные самоуравновешенные напряжения, моделирование, rock, internal structure, natural self-balanced stresses, modeling
Abstract
The authors use mathematical model of structurally inhomogeneous rocks to describe the property of rocks to accumulate and release potential elastic energy. The finite element algorithm and bundled software are developed to solve plane boundary-value geomechanical problems. The article presents calculations of deformation of self-stress rock specimens. It is shown that the deformation curve depends both on the elastoplastic properties of the specimens and on their natural self-balanced stresses. Depending on sign, the stresses can either increase or decrease the limit load under which the specimens fail.
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