Method and system for long-term ore discharging plan based on natural caving

Abstract

The present invention discloses a method and a system for long-term ore discharging plan based on natural caving. The method comprises: S1, according to the topographic features and the geological features of a preset ore discharging area, establishing the ore discharging model of the preset ore discharging area, and obtaining the grades of each ore discharging layer in each ore discharging body in the ore discharging model; S2, according to the grades, calculating the optimal ore discharging height in the preset ore discharging area; and S3, according to the optimal ore discharging height, screening the preset ore discharging area ore discharging sequence capable of achieving the maximal net present value from a rhombus restraint ore discharging sequence, a fixed sequence and a rhombus-restraint-freen ore discharging sequence free, the ore discharging model comprises at least one ore discharging body, and each ore discharging body is divided into a plurality of the ore discharging layers. According to the present invention, the method comprehensively considers the influence of the ore discharging height and the ore discharging sequence on the net present value possibly achieved by the ore discharging area, the long-term ore discharging plan capable of achieving the maximal net present value is made, and the making of the economic and efficient ore discharging plan is achieved.

Description

technical field [0001] The invention belongs to the field of natural caving method production planning, in particular to a method and system for long-term ore drawing planning based on natural caving method. Background technique [0002] The natural caving method is a large-scale and high-efficiency mining method that relies on the stress of the ore rock itself and is induced by the bottom-drawing project to cause the ore body to caving and then released through the self-weight of the ore rock. The production plan of the mine provides strategic guidance for the sustainable, stable and efficient production of the mine. The optimal plan can minimize the cost and maximize the benefits of the mine. Scholars at home and abroad have done a lot of research on it. For example, the Canadian scholar D.Jolley proposed that the mathematical model for computer simulation of ore drawing is called the Jolley model. According to the established mathematical model, the ore drawing simulation...

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Problems solved by technology

[0003] However, through the current production practice, it is found that the research on ore-drawing control is difficult to meet the needs of actual production, especially how to arrange the sequence of the start of ore-drawing points in each period is completely based on experience, and it is difficult to maximize the economic benefits of the mine. Maximize the net present value of the mine and meet the needs of mine production in a fast, efficient, economical and low-dilution manner

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