The paper focuses on the optimal control of natural resources in mining industry. The purpose is to pro- pose an optimal extraction series of these resources during the lifetime of the Mine＇s maintenance. Fol- lowing...The paper focuses on the optimal control of natural resources in mining industry. The purpose is to pro- pose an optimal extraction series of these resources during the lifetime of the Mine＇s maintenance. Fol- lowing the proposed optimal control model, a sensitivity analysis has been performed that includes the interest rate impact on the optimal solution. This study shows that the increasing of the interest rate sti- mulates faster extraction of the resources. The discounting factor induces that the resource has to be extracted faster hut this effect is counterbalanced by the diminishing returns of the annual cash flow. At higher parameters of ＂alpha＂ close to one of the power function about 80% from the whole resource will be extracted during the first 4 years of object/mine maintenance. An existence of unique positive root with respect to return of investment has been proposed and proved by two ways： by the ＂method of chords＂ and by using specialized software.展开更多
At the present stage, the exploitation loss and waste of mineral resources are serious.lf this trend goes on, it will undoubtedly accelerate the resource depletion. Based on the values of mineral resources and their n...At the present stage, the exploitation loss and waste of mineral resources are serious.lf this trend goes on, it will undoubtedly accelerate the resource depletion. Based on the values of mineral resources and their natural and economic attibutes, this paper sets up a multi-mine mineral resource exploitation model in the market competition. In addition, it analyses the struc-ture of the model and derives optimal conditions. Finally it gives a detailed interpretation of the practical application of the model for instance.展开更多
According to the mining mechanisms of CBM combined with coal structure andthe key technologies of coordinated mining coal and coalbed methane under differentmining coal models, the theoretical foundation of coordinate...According to the mining mechanisms of CBM combined with coal structure andthe key technologies of coordinated mining coal and coalbed methane under differentmining coal models, the theoretical foundation of coordinated mining of coal and coalbedmethane was expounded, and the mining models of coordinated mining of coal andcoal-bed methane were classified.This research can provide a reference to safety productionof coal mines and development of CBM resources.展开更多
文摘The paper focuses on the optimal control of natural resources in mining industry. The purpose is to pro- pose an optimal extraction series of these resources during the lifetime of the Mine＇s maintenance. Fol- lowing the proposed optimal control model, a sensitivity analysis has been performed that includes the interest rate impact on the optimal solution. This study shows that the increasing of the interest rate sti- mulates faster extraction of the resources. The discounting factor induces that the resource has to be extracted faster hut this effect is counterbalanced by the diminishing returns of the annual cash flow. At higher parameters of ＂alpha＂ close to one of the power function about 80% from the whole resource will be extracted during the first 4 years of object/mine maintenance. An existence of unique positive root with respect to return of investment has been proposed and proved by two ways： by the ＂method of chords＂ and by using specialized software.
文摘At the present stage, the exploitation loss and waste of mineral resources are serious.lf this trend goes on, it will undoubtedly accelerate the resource depletion. Based on the values of mineral resources and their natural and economic attibutes, this paper sets up a multi-mine mineral resource exploitation model in the market competition. In addition, it analyses the struc-ture of the model and derives optimal conditions. Finally it gives a detailed interpretation of the practical application of the model for instance.
文摘According to the mining mechanisms of CBM combined with coal structure andthe key technologies of coordinated mining coal and coalbed methane under differentmining coal models, the theoretical foundation of coordinated mining of coal and coalbedmethane was expounded, and the mining models of coordinated mining of coal andcoal-bed methane were classified.This research can provide a reference to safety productionof coal mines and development of CBM resources.
