ABSTRACT:

The risk value can be undertaken as the combination of the probability of dynamic events occurrence and the consequences that event occurs damage. Probable dynamic events occurrence is identified according to indicators of the geological environment critical setting. These indicators are calculated based on the results of the geological environment geodynamic monitoring within the area of mining operations. The methodology of integrated hazardous dynamic events occurrence prediction has been developed on the basis of analytical and in-situ investigations in geological environment geomechanical processes. The elimination of the mining-induced catastrophe risk being impossible, the algorithm of possible risk escaping has been developed. Solving the above-mentioned problems is shown on the example of the world?s largest suppliers of phosphate raw material ? the Khibiny apatite mines in the Russian Arctic.

INTRODUCTION

For mining operations in energy-saturated (highlystressed) geological medium, of major hazard are rockbursts and mining-induced earthquakes. At present, mining-induced seismicity is actual for many regions of the world where mining sector is developed. Similar physical nature of mining-induced and tectonic earthquakes has stipulated wide extension of models and methods applied by classic seismology into mining-induced seismicity. With a reliable spatial-time prediction of dynamic events occurrence in mines being impossible due to the current techniques applied in geomechanic experiments, it is expedient to assess risk from these events and, depending on risk magnitude, plan and perform the corresponding preventive measures.

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