This paper presents mathematical models to solve operational problems in open pit mining design such as ore blending and equipment assignment. The models determine the productivity of each working bench in one mine. They also consider the ore quality in order to make the blending, production goals, truck and shovel characteristics and availability, and support both static and dynamic allocation. The dynamic allocation model provides productivity and haulage equipment assignment. The static allocation model also provides the truck assignment.
Mathematical programming; mining; ore blending
