Probabilistic seismic hazard evaluation in underground mines

ABSTRACT

Stress concentrations produced by rock deformation due to extraction in underground mines induce seismicity thet can take the shape of violent and quite dangerous rockbursts. The hazard evaluation presented in this paper is based on a Bayesian probabilistic synthesis of information determined from mining situations during excavation, with previous and present data from microseismicity and seismoacustics. The method proposed in this study is an example of time-dependent on-line seismic hazard evaluation. All results presented were obtained retrospectiely for different underground coal mines in Poland and Czechoslovakia.(AU)