Abstract: Based on three-dimensional orebody modeling technology, the blast-hole distributing and blasting network design of open-pit mine bench blasting was studied. Which had been successfully used in blasting project design at 1414 northern bench of Sandaozhuang Open-pit Mine of Luoyang Luanchuan Molybdenum Industry Group Co,Ltd. The result indicated that the blasting design system blasting plan is scientific and effective, and the blasting design working efficiency has been improved greatly.

Key words: Open-pit mine, Bench blasting design, 3D visualization modeling