Exploring the Influence of Slope Shape on the Stability of Open Pit-Mines under the Action of Groundwater Based on the Strength Reduction Method
Due to their unique mining methods,open-pit mines often form various steep slopes,posing a threat to production safety.Although there has been extensive research on the impact of slope shape on stability,changes in internal stress caused by groundwater can still lead to slope instability and mine landslides.Therefore,studying the effect of groundwater on slope shape and its impact on the stability of open-pit mines is crucial.This paper uses models from the FLAC3D manual,applying FLAC3D software and the Mohr-Coulomb criterion,to analyze the impact of different slopes,heights,and step lengths on the stability of composite slope under the influence of groundwater.The results show that the slope stability coefficient under groundwater action is lower,the possible sliding range is larger,and the stability of concave slope portion is better than that of straight slope.On this basis,the relationship between concave slope shape and its stability was further investigated:with the increase of slope,slope height and step length,the relationship curves between the three and the stability coefficient showed a tendency of decreasing and then stabilizing.The research on the influence of slope shape on the stability of open-pit mines under the action of groundwater can provide theoretical support for the mining design and comprehensive management of open-pit mines,which is of guiding significance for realizing the economic rationality of open-pit mining and ensuring the long-term stability and sustainable development of the mines.
open-pit minesstabilityslope shapethe action of groundwaterstrength reduction method
万方数据
维普
