Madencilik, cilt.49, sa.1, ss.3-16, 2010 (Scopus)
Production in the shape of benches in open pit mines have long been applied successfully as a safe and economical method. Drilling and blasting operations are carried out in order to form bench structures and to achieve production. When comminution process starting from the rock mass and going on until the acquirement of fine-grained material prior to mineral processing is taken into consideration, bench blasts directly influence the efficiency of other operations as the initial phase of comminution. For this reason, the detectability of size distribution in bench blasts are crucial from the aspect of consecutive operations. The determination of size distribution in bench blasts is rather difficult due to the abundance of both the controllable variables (blast design parameters) and uncontrollable variables (rock mass properties). Among the proposed models for the determination of heap size distribution, Kuz-Ram and KCO models have been discussed in this paper. Besides, Split Desktop program, one of the image processing programs, and also WipFrag program have been employed for the determination of size distribution and a comparison has been made between estimation models of size distribution.