Rock bursts in the light of the catasstrophe theory

Author: A. Zorychta

Rock burst phenomenon because of its jump like character may beconsidered as a process of the loss of stability and using the catastrophe theory it is possible to define conditions of such instability.

Analysis of some geomechanical models showns two mechanisms of rock burst: rock burst as the catastrophic jump or rock burst as a loss of bearing capacity of a seam.

Conditions of rock burst existence were obtained for three and uni-axial stress states and additionally for a case when roof and floor rocks were considered as the rheological medium.