PSI LLC, Moscow, Russia

A. A. Izyumtsev, CEO, ai@psi-mining.com

Mining Institute, Kola Science Center, Russian Academy of Sciences, Apatity, Russia

I. Yu. Rozanov, Senior Researcher, Candidate of Engineering Sciences

Inner Mongolia Mypattern Technology Co., Ltd, Hohhot, China

Ma Zhaokun, COO

Open pit mineral mining involves removal and displacement of huge amounts of rocks, with very often events of local and general instabilities of pitwall. As a consequence, mines suffer economic losses connected with damage to machinery, personnel injuries and with process abnormalities up to complete shutdown. In this connection, one of the topical tasks in open pit mining is structural stability of slopes. The key and most frequent activity is geomechanical monitoring on the basis of radar technologies. Prediction of potential slope failures uses different procedures of the radar data interpretation and analysis. The article describes three procedures of slope failure prediction and the case-studies of their implementationsPrediction of hazard of a potential slope failure can use the velocity and acceleration curves. Depending on the conditions of mining, the process of a slope failure can either be uniformly or nonuniformly accelerated. Prediction of landslides in open pit coal mines can use the methods of inversion of velocity and tangential angle of slip, which have proven well. For another thing, development of slope failures in such conditions features a uniform increase in the displacement velocity as against slope failures in hard rock masses. In prediction of slope failures in hard rock masses, the hazard criterion is the increase in the rock mass displacement velocity over the pre-established critical values, which should be determined individually at each deposit and revised, if necessary, as new data on geomechanical processes in rock mass are obtained.

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