首页|Timing of transition from open-pit to underground mining: A simultaneous optimisation model for open-pit and underground mine production schedules
Timing of transition from open-pit to underground mining: A simultaneous optimisation model for open-pit and underground mine production schedules
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
? 2022 Elsevier LtdGenerally, shallow deposits are mined through open-pit mining and where the deposits are extended to a substantial depth, there is a potential for a combination of open-pit and underground mining methods. In this case, mine planning and optimisation play a significant role in the decision-making. This paper proposes a mixed-integer programming model to obtain the optimal transition point and the transition period from open-pit to underground mining, maximizing the project net present value considering crown pillar placement and development cost. An implementing at a three-dimensional case study generates the optimal transition point and period and an optimal production schedule for both open-pit and underground operations. The implementation considers three scenarios: transition point only (scenario 1), transition point and period without production delay (scenario 2), and transition point and period with two-period production delay during the transition (scenario 3). The optimal transition point for scenario 1 is 315 m and for scenarios 2 and 3 is 360 m below the surface.
Integer programmingMine optimisationOpen-pit to undergroundProduction schedulingTransition point
Chung J.、Asad M.W.A.、Topal E.
展开 >
Mining Engineering WA School of Mines: Minerals Energy and Chemical Engineering Curtin University
NSTL
Elsevier
