Research on landslide time prediction in open-pit mine under different early warning models
LI Qianhui
Abstract：The slope of open-pit mine is affected by gravity,the internal stress balance is destroyed,and induced by external factors such as rainfall,earthquake and artificial mining activities,so that geological disasters such as landslide,slope and collapse occur.Because of the suddenness,disaster and unpredictability,it seriously restricts people's life and property safety.The inverse velocity model(INV model),slope model(SLO model)and logarithmic prediction model(Lgt)based on the three-stage theory of creep deformation are widely used in landslide time prediction because of their simplicity,convenience and operability.The basic principle of three prediction models are analyzed,and the methods of obtaining onset of acceleration(OOA)at the acceleration stage of creep curve are analyzed.The application of different prediction models in landslide time prediction is studied by combining three landslide cases.The results show that all the three prediction models can effectively predict the occurrence time of landslide,and the slope model and the logarithmic function model are more effective in the correlation coefficient of curve fitting and the accuracy of prediction time.
Keywords：early warning modellandslide disastermonitoring and early warningtime predictiononset of acceleration
Publication Date：2024-08-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 5-10 )