Regional prediction of rock burst hazard in coal mine based on GIS

In order to accurately predict the risk area of rock burst in coal mine, from perspective of the conditions of natural geology, mining technology and prevention and control measures, the analytic hierarchy process was used to realize the weight calculation, and the fuzzy mathematics was used for fuzzy evaluation. Based on the ArcGIS grid method, the grid unit of 50 m × 50 m was divided, and the grid parameters and spatial interpolation were carried out. Taking 0.25, 0.50 and 0.75 as the critical value of rock burst risk, the rock burst risk of coal seam and working face in Junde Coal Mine was predicted and the rock burst risk area was determined. The results show that the no, weak, medium and strong impact danger zones of 17 coal seam in Junde Coal Mine account for 32%, 52%, 15% and 1% respectively. The prediction results of the unit probability of the working face range from 0.48 to 0.96, of which the weak impact area accounts for 34%, the medium impact area accounts for 48%, and the strong impact area accounts for 18%. When the mining work enters different grid units, the impact risk of the project location can be determined, and the impact prevention measures can be proposed in advance.