ANALYSIS OF KAISER EFFECT MODELS IN ROCKS
N. L. Beltyukov, V. N. Toksarov
Institute of Mining, Ural Branch of Russian Academy of Sciences, Perm, Russia
Keywords: Массив горных пород, естественное напряженное состояние, акустическая эмиссия, эффект Кайзера, модели трещинообразования, Rock mass, in-situ stress state, acoustic emission, Kaiser effect, cracking models
Abstract
The paper considers a promising method for determining stresses in rocks based on the Kaiser effect. The analysis of various models of crack formation causing the manifestation of this effect was made. It is shown that one of the reasons for the occurrence of this phenomenon in the case of initial core loading can be the activation of cracks, which formed during unloading of the rock from effective stresses in the rock mass.
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