岩石微裂纹演化的分岔混沌与自组织特征*

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Abstract On the basis of test results of micro-fracturing process and evolution of micro-cracks in rock under uniaxial compression，the theory of bifurcation，chaos and self-organization in the nonlinear dynamics are applied in the research on micro-crack property. The results show that the evolution of micro-cracks could be described by the Logistic equation，so that the evolution of micro-cracks of rock is of the characteristics of bifurcation and chaos. Meanwhile，the relationship between length and number of micro-cracks at each stress level is studied. The results show that the evolution of micro-cracks follows power law，and the system of micro-cracks in rock is of the feature of self-organization.

Key words： evolution of micro-cracks in rock bifurcation chaos self-organization evolution of micro-cracks in rock bifurcation chaos self-organization

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https://rockmech.whrsm.ac.cn/EN/Y2002/V21/I05/635

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