Applications of operations research to mine planning date back to the 1960s. Since that time, optimization and simulation, in particular, have been applied to both surface and underground mine planning problems, including mine design, longand short-term production scheduling, equipment selection, and dispatching, inter alia. In this paper, we review several decades of such literature with a par...

Integrated Optimization can find optimized solutions for a project to define open pit and mine scheduling with greater reliability. This work aims demonstrate how the insertion of geometallurgical variables significantly change financial return project. Two are considered in planning simulations. Specific energy corresponds consumed comminution ore, process recovery measures percentage metal in...

Drawing on the theories of limit equilibrium and finite-element strength reduction, this paper explores instability modes stability change laws slope in zones E, W, S Jiajika spodumene mine, through rock mechanics tests, field survey, numerical simulation. The results show that sliding mode is circular arc or + plane sliding. Overall, final open-pit mine generally stable under current design, s...

Abstract Large-scale open-pit mining activities have profound impacts on the surrounding landscape and environment. At cessation of mining, rehabilitation large void spaces can be achieved by pit-lake filling, where water body provides a confining pressure mine surfaces, reducing both likelihood slope failure need for ongoing maintenance. Although pit-lakes present range long-term benefits, geo...

One of the main concerns of the mining industry is to determine ultimate pit limits. Final pit is a collection of blocks, which can be removed with maximum profit while following restrictions on the slope of the mine’s walls. The size, location and final shape of an open-pit are very important in designing the location of waste dumps, stockpiles, processing plants, access roads and other surfac...

In order to solve the problems of a slow solving speed and easily falling into local optimization an ore-blending process model (of polymetallic multiobjective open-pit mines), efficient scheduling method based on multiagent deep reinforcement learning is proposed. Firstly, according actual production situation mine, optimal control for ore blending was established with goal minimizing deviatio...