Stability analysis of jointed rock slope based on strength reduction method
To analyze the stability of the mining area,the stope slope partition was carried out according to the engineering geological conditions,slope geometry and slope surface inclination.The results show that the jointed rock slope profile in the northern area is in the ultimate equilibrium state,and the occurrence state and slope height of the weathered rock layer have a great impact on the safety of the slope,so it is necessary to pay attention to the weathered rock layer and the local broken rock mass,and the plastic strain zone is mainly concentrated in the top weathered monzogranite layer,which is relatively concentrated,resulting in local failure of the slope.The overall stability of the section in the northeast area is higher than that in the north area,and the plastic strain zone is mainly concentrated in the 3-2-1 fragmented structure monzogranite layer and the 3-2-2 block structure monzogranite layer,and the continuous plastic slip zone is penetrated,resulting in the overall failure of the slope.
open pit minesstability analysisstrength reduction methodnumerical simulation
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