Metal open-pit mine 5D temporal-spatial dynamic production scheduling plan model building method

Abstract

The invention discloses a metal open-pit mine 5D temporal-spatial dynamic production scheduling plan model building method which mainly comprises the following steps: building a 3D open-pit mine rock mass block production scheduling model; carrying out space block model attribute assignment; building an ore price and mining and rock mass stripping cost database; and finally, building a 5D temporal-spatial dynamic production scheduling model. The invention aims to realize dynamic simulated mining of a mine rock mass within the open-pit mine boundary. By making use of the 5D temporal-spatial dynamic production scheduling model, the medium- and long-term mining progress and process can be simulated accurately, the obtained resource net value can be calculated dynamically, a mining scheme maximizing the resource net value can be selected for a mine from a variety of medium- and long-term mining schemes, and the discount rate can be further considered to enable mine enterprises to select a medium- and long-term progress plan scheme maximizing the net present value NPV. The metal open-pit mine 5D temporal-spatial dynamic production scheduling plan model building method has a broad application prospect in the field of open-pit mine development optimization design.

Description

technical field [0001] The invention belongs to the technical field of mining system engineering and mine optimization, and in particular relates to a method for constructing a 5D spatiotemporal dynamic production planning model of a metal open-pit mine. Background technique [0002] At present, the medium and long-term production plans of most metal open-pit mines in my country (usually more than 5 years are called medium and long-term) production plans often have the phenomenon of "one-time preparation and long-term use", and only pay attention to medium and long-term progress planning at a certain static time point. During the preparation of the plan, mining parameters such as production scale, ore grade ore blending, and stripping ratio are mainly considered. However, the market environment is affected by various random factors and there are many uncertainties. Mining companies often ignore ore market prices and For changes in economic parameters such as production costs, ...

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Problems solved by technology

The managers of mining enterprises are often more accustomed to taking the total ore mining volume of the mine and the reasonable stripping ratio as the assessment objectives of annual production, rather than organizing and implementing production plans based on economic indicators such as the best return on investment, which makes the actual Mining production deviates from the market-oriented direction of mining enterprises and the pursuit of a reasonable net present value goal. This static medium- and long-term production plan obviously lacks flexibility, real-time and scientific

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