Numerical simulation of rock burst processes treated as problems of dynamic instability
- 453 Downloads
The phenomenon of rock burst occurs when the static stability conditions of the rock mass are violated and the dynamic failure process proceeds starting from the equilibrium state. In view of the difficulties in determining numerically the instability point, an alternative approach is advocated here: after solving the initial static problem the mode and onset of dynamic failure are studied by superposition of dynamic disturbances. In this way quantitative analyses of rock burst phenomena may be handled in a relatively simple manner.
KeywordsQuantitative Analysis Equilibrium State Civil Engineer Stability Condition Rock Mass
Unable to display preview. Download preview PDF.
- Bieniawski, Z. T. (1968): Fracture Dynamics of Rock. Int. J. Fract. Mech., Vol. 4, 415–430.Google Scholar
- Burgert, W., Lippmann, H. (1981): Models of Translatory Rock Bursting in Coal. Int. J. Rock Mech. Min. Sci. and Geom. Abstr., Vol. 18, 285–294.Google Scholar
- Crouch, S. L., Fairhyrst, C. (1974): Mechanics of Coal Mine Bumps. Trans. Am. Inst. Min. Engrs., Vol. 256, 317–323.Google Scholar
- Dragon, A., Mróz, Z. (1979): A Continuum Model for Plastic-Brittle Behaviour of Rock and Concrete. Int. J. Eng. Sci., Vol. 17, 121–137.Google Scholar
- Mróz, Z., Zubelewicz, A. (to be published): On Dynamic Modes of Failure of Brittle-Plastic Structures. Arch. Mech.Google Scholar
- Petukchov, I. M., Linkov, A. M. (1979): The Theory of Post-Failure Deformations and the Problem of Stability in Rock Mechanics. Int. J. Rock Mech. Min. Sci. and Geom. Abstr., Vol 16, 57–76.Google Scholar
- Salamon, M. D. G. (1970): Stability, Instability and Design of Pillar Workings. Int. J. Rock. Mech. Min. Sci., Vol. 7, 613–631.Google Scholar
- Zubelewicz, A. (1982): On Application of Contact Finite Elements in Solving Elasto-Plastic Problems. IPPT-Rep.Google Scholar