Comprehensive application of FTA-AHP method in the cause analysis ofblasting flying stone accident

There are some deficiencies in the analysis of blasting flying stone accidents by using FTA or AHP method alone.In order to further study the influence of the basic events on the top events, the FTA-AHP comprehensive analysis method was used to analyze them.At an airport east perimeter boundary A, B, C three mountain blasting excavation as the background, according to the field investigation results to prepare blasting flying stone accident tree and structural importance analysis, with blasting flying stone as the target layer, blasting design and construction, geological conditions, environment and safety management as the standard layer, the basic events as the indicator layer, The FTA-AHP comprehensive analysis model of blasting flying stone accident is constructed and the weights are calculated.The results show that the influence of incident X₁ to incident X₇ and incident X₉ on blasting flying stone is the most important, and based on the analysis results, the prevention emphases are determined and the corresponding preventive measures are established, which can be used for reference by peers.