Mine planning subject to prepared ore reserves rationing

Kanay Rysbekov,Tursyn Kalybekov,Gulnara Bakhmagambetova,Timur Yessezhulov,Serik Moldabayev,Ayan Toktarov,A Bulat,B Liu,O Zhevzhyk,Y Kryzhanivskyi,V Heyets,O Voloshyn

doi:10.1051/e3sconf/202016800016

Abstract

This article deals with production planning in the context of providing technology at each mining stage with developed and ready-tostoping reserves. In order to address the problem, the ore body is represented by a geological block model. Numerical data is used to represent the attributes of each block, such as mass, density, ore grade, rock type. The mining plan provision with reserve standards on the degree of reconnaissance for production is reduced to the optimization task solution. The main condition for ensuring the planned production productivity of the mine is to provide the minimum necessary developed reserves. In the proposed mathematical model, it is taken into account by one of the objective function’s terminators for solving the set task. As the results of the calculations have shown, such a scheduling ensures approach that there is developed ore’s sufficient amount for at least 6 months at the beginning of each period, which is a clear advantage of the proposed model.

Highlights

Establishment of developed and ready-to-stoping reserves’ optimal values during mineral deposits exploitation contributes to the creation of favorable conditions for their reasonable development [1]
The provision of the required volumes in terms of extracted ores’ quantity and quality depends on the number of ready-to-stoping reserves available in the developed elementary extraction units (EEU): panels, blocks, sections, etc., Forming of production reserves is necessary in order to achieve these goals
The task discussed in this article is to develop a block development schedule similar to a classical task, but with the inclusion of additional limitations - to ensure a sufficient number of developed and ready-to-stoping ore reserves in blocks that are readily available at the start of each planned development phase

Summary

Introduction

Establishment of developed and ready-to-stoping reserves’ optimal values during mineral deposits exploitation contributes to the creation of favorable conditions for their reasonable development [1]. The provision of the required volumes in terms of extracted ores’ quantity and quality depends on the number of ready-to-stoping reserves available in the developed elementary extraction units (EEU): panels, blocks, sections, etc., Forming of production reserves is necessary in order to achieve these goals. A part of ore reserves are considered developed if available at the beginning of the initial production processes planned period: drilling, blasting, mechanical loosening [2]. The task solution of the problem of degree of reserves reconnaissance is to determine the optimal sequence of reserve extraction EEU when planning ore body development with open as well as with underground mining. The ore body consists of several thousand or millions of blocks, respectively the mining planning models for such a structure are very complex, resulting in three-dimensional combinatorial linear tasks

Methods

Results

Conclusion