Açıq mədən işləriTopics

Comparative analysis of existing underground and open methods for the classification, characterization and industrial development of mineral deposits.

The physical-mechanical and technological properties of mountain rocks affecting the processes of excavation, loading and blasting are studied.

Basic understanding of elements of quarries, stages of open pit mining, main and auxiliary production processes is given.

Stages of preparation for rock mass excavation, direct extraction of soft rocks and methods of preparing hard rocks for crushing are explained.

The theory of breaking solid rocks by explosive energy and the principles of mechanical crushing of semi-rock rocks are studied.

Blast well drilling machines, drilling technologies and stages of mass blasting are studied in open pit mines.

The properties of industrial explosives (igdanite, granulite, etc.) and detonation means used in open works are analyzed.

At the career stages, the location schemes of the well network, the diameter and depth of the well, the types of shot load (whole, intermediate) and their calculation are explained.

The methods of re-shredding large-sized (out-of-standard) rock fragments (oversizes) created after a massive explosion are studied.

Sorting (selective) extraction of complex ores, blasting safety norms and blast block marker measurements are taught.

The storage of loose rocks (waste) extracted during mining operations, the design and setting of parameters of landfills are studied.

The schemes of collecting loose rock in the landfill by means of mechanical shovel excavators and draglines and their productivity are analyzed.

The organization of landfills according to the terrain (plain, mountainous), soil protection, recultivation (restoration) processes and environmental safety measures applied at this time are explained.

In contrast to the traditional excavator method, the principles of non-traditional, special open extraction technologies (for example, physical-chemical washing, thermal methods) are studied.

Transportation of mountain mass through water flow (pulp) with pipes or open channels, the basics and equipment of hydromechanization are studied.

The methods of digging capital ditches (trenches), construction of transport roads and ensuring access to the deposit are explained for the preparation of open fields for exploitation.

Classification of open pit mining operations (operational systems), mutual spatial and temporal relations of excavation, transport and disposal operations are studied.

The working zone of the quarry, the step height, the width of the working area, the advance speed of the front and the effect of these parameters on the production are investigated.

Simultaneous or consecutive open and underground processing of the deposit, as well as ways to minimize the damage caused by open-pit mining to nature are studied.

The organization of quarry production, the management of a mining enterprise, the preparation of annual/monthly plans and the effective division of labor are studied.

Methodology for calculating the cost of 1 ton (or m³) of minerals, the utilization rate of fixed assets, labor productivity and the overall profitability of the project is presented.