A rock fall is significant phenomenon in rock engineering happens quickly. In 2009, a rock fall occurred in a slope located above a concentration plant in the Sungun copper mine (northwest of Iran) and damaged structures. After the occurrence of the rock fall, both a stability analysis and stabilization system design were executed for the slope. In this study, the Sungun concentration plant slope was rated using the RHRS system and was determined to be a dangerous region. In addition, behavior parameters were determined based on the back analysis method. Laboratory test results and information about the fall were used in this method. Sections in the dangerous region and analysis models were prepared after determining the behavior parameters. The result of the modeling specifies the rock fall profile, energy of the fall and the point at which the rock stopped. Finally, stabilization systems were designed using the results of the modeling.
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