ABSTRACT

ABSTRACT: A simulated rockburst experiment was conducted underground at a deep level gold mine in South Africa. The rockburst was simulated by means of a explosion detonated in solid rock dose to a tunnel sidewall. The experiment involved the design of a seismic source using numerical modeling and empirical equations, seismic monitoring by a fairly dense seismic array, high speed video filming and the study of rock mass conditions (fractures, joints, rock strength etc.) before and after the experiment. Special investigations were carried out to evaluate the mechanism and the magnitude of damage, as well as the support behaviour under excessive dynamic loading.

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