Abstract:It is meaningful for researching on monitoring and forecasting technology of slope stability in open pit mine to prevent landslide geological disasters. Based on the mechanical principle of interaction among landslide body,landslide bed and monitoring anchor cable of slope,the mechanical principle of relative movement between landslide body and landslide bed is proposed;and the multi-factor monitoring is transformed into single landslide mechanical monitoring. The relationship between sliding force of slope and pretightening force is provided. According to the physical model experiment of landslide,the stress will change continually inside the landslide mass before the occurrence of landslide. When the sliding force is greater than the anti-sliding force,the deformation and landslide will take place,which means the change of stress will be ahead of displacement. Consequently,monitoring the alteration of stress in the sliding mass is better than that of the displacement. Based on above principle and experiment,the system of real-time remote monitoring and forecasting for geological disasters of landslide is developed,which can realize the real-time remote monitoring of perturbation. Four types of forecasting models corresponding to the system of remote monitoring are also presented. According to the field application to opencast mines slope,this new technology successfully implements monitoring and forecasting for stable condition of slopes.