COMPARATIVE STUDY ON 2D AND 3D MOTION CHARACTERISTICS OF DANGEROUS ROCK MASS BASED ON ROCKFALL AND RA
Avalanche is a common class of geological hazards,and its movement trajectory and quantitative evaluation of hazard are one of the hot spots in current research.Taking a high slope in a mountainous area as an object,the study used RockFall 2D rockfall trajectory simulation and RockFall Analyst 3D rockfall simulation respectively to simulate the movement characteristics of avalanche rockfalls after the instability of hazardous rocks and to make comparative analyses.The results show that:the upper part of the slope section belongs to the high-risk area of rockfall,and the lower part of the slope section belongs to the low-risk area,and the results of the 3D software rockfall simulation are more accurate than 2D,which is of great significance to the prediction of the trajectory of rockfall and the control engineering of dangerous rocks.
dangerous rock massrockfall trajectoryRockFall AnalystRockFallrisk assessment
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