Abstract:The evaluation of an orebody cavability is an important research subject for the application of block caving. Using the RMQC software system, the orebody cavability classification model of Tongkuangyu Copper Mine and itsin situpractices were studied. Several important problems were discussed, which included the selection and definition of classification designation, the structure analysis of each designation, the estimation of the designation value of each block, the establishment of orebody cavability classification model and the results of classification.

Key words: block caving　cavability classification of orebody　rock mass quality estimation