Prognostic model of rock and gas outbursts

The prediction of rock and gas outbursts as a multivariate hazard is discus sed against the background of the most frequently applied theories of outbu rst description and with reference to system concepts of outburst modelling . An outburst is conceived of as an event and a new version of an outburst prognostic model is developed. Contrary to most approaches, which consider an outburst as a physical process, the concept presented is based on data o btained through field measurement. Finally, a new concept of ranking the in fluence of the various causes of outbursts is presented.