Prognostic Model of Mineral Resources Development in Ukraine

Horoshkova, Lidiіa; Volkov, Volodymyr; Khlobystov, Ie.

doi:10.3997/2214-4609.201903171

Cited by 3 publications

(3 citation statements)

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“…5. It has been determined that the volume of prospective waste rocks to be placed in cavities varied monthly within 22.9-44.1 thousand m 3 , and prospective underground cavitieswithin 111.4-141.6 thousand m 3 . It has been found that underground cavities have enormous potential for placing all the waste rocks from stope, drifting and repair operations, the volume of which by 2.8-4.8 times exceeds the rock volume.…”

Section: Discussionmentioning

confidence: 99%

“…11). From Figure 11 analysis, it can be seen that the volume of waste rocks promising for placing in cavities varied monthly within 22.9-44.1 thousand m 3 , and prospective underground cavitieswithin 111.4-141.6 thousand m 3 . The values variation is primarily caused by commissioning into operation and decommissioning of longwall faces with different parameters, idle time during commissioning of new longwall faces, the difference in the rate of stope and drifting faces advance.…”

Section: Research Into Balance Of Formed Rocks and Underground Cavities In Relation To Mining Operations Developmentmentioning

confidence: 99%

“…Ukraine is among the countries where a significant part of the economy is based on the mineral-raw resources development [1]- [3]. The iron ore and coal industries are of great importance to the country [4]- [6].…”

Section: Introductionmentioning

confidence: 99%

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Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams

Petlovanyi¹,

Malashkevych²,

Sai³

et al. 2020

Min. miner. depos.

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Purpose. Study the movement of waste rock flows in the coal mine technological system and determine the balance of rocks and underground cavities formation from the perspective of the current mining operations development in order to assess the possibility of leaving the rock in the underground area. Methods. Based on the rank order of the Western Donbass mines, a coal mine has been chosen as the object of research in terms of maximum output and ash content. An algorithm is proposed for analytical studies of determining the rock outcrop in the course of stope, drifting and repair operations, as well as the prospective volumes of underground cavities for placing the formed waste rocks per a calendar year. The algorithm is based on the actual state of mining operations and the indicators of the stope and drifting faces of the mine, as well as the achieved modern mining-engineering parameters of the coal seams mining. Findings. It has been revealed that the main supply of waste rocks to the surface occurs as a result of stope operations with rock undercut -39% and underground mine workings -33%. It is proposed to differentiate all waste rock outcropped after mining operations into 2 categories: difficult to dispose of and prospective for disposal. It has been found that underground cavities have enormous potential for stockpiling of all waste rocks, the volume of which is by 2.8-4.8 times higher than the rock volume. It has been revealed that the most rational balance of waste rocks and cavities for leaving the rock in the mine is formed along the С 10 t seam. It has been determined that the full-fledged placement of rocks is limited by the scheduling peculiarities of mining the reserves along the seams, which are made for the complete cave-in technology of coal mining. Originality. For the first time, for one of the Western Donbass mines, the balance of formed waste rocks and potential underground cavities, dynamically changing in time and space, has been determined. Practical implications. The results obtained are useful for engineering new spatial planning solutions for the optimal development of mining operations with the maximum possible rocks stockpiling in the underground area of mines.

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Section: Discussionmentioning

confidence: 99%

Section: Research Into Balance Of Formed Rocks and Underground Cavities In Relation To Mining Operations Developmentmentioning

confidence: 99%

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Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams

Petlovanyi¹,

Malashkevych²,

Sai³

et al. 2020

Min. miner. depos.

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Geophysics of Pedosphere in Kyiv University

Horoshkova¹,

Menshov²

2023

VKNUGEOL

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The article provides modelling aimed at the management system design for the rational extraction and use of mineral resources of Ukraine applying the case of construction non-metallic minerals to ensure the country's post-war recovery. The projection volumes for production and rational use formed taking into account the needs of technologically related industries have been suggested. The official statistical data analysis on the production volumes of construction stone, construction sand and expanded clay raw materials during the studied period (15 years) have been carried out. It has been found out that indicators' fluctuations both in production volumes and their growth rates have a periodic, cyclical nature. They are correlated and related to the general economic condition of the construction industry and the country. It has been proven that solving the problem of minerals rational use is possible through their balanced extraction, namely putting correlation between extraction and utilization volumes. The authors' economic-mathematical model of forecasting the development of complex systems has been used to forecast industry's development. It has been proven that the model will allow managing the production of technologically related minerals depending on their utilization volumes. It has been proven that amid war conditions due to the destruction of the country's infrastructure, there is a need to make model adjustments for balanced extraction and use of construction non-metallic minerals, taking into account generated construction waste and the needs of the post-war country's and its infrastructure's recovery. Modelling was carried out taking into account the new conditions of the industry's and the country's development. A five-year forecast has been made for the production and utilization of construction sand, construction stone and expanded clay.

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Analysis of the regularities of basalt open-pit fissility for energy efficiency of ore preparation

Malanchuk¹,

Moshynskyi²,

Khrystyuk³

et al. 2022

Min. miner. depos.

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Purpose. To identify dependence of specific rock mass fissility upon the bench height of basalt open pits based upon the analysis of basalt open-pit bench fissility. Methods. Fractural tectonics of basalt open pits was studied experimentally. In addition to the specific fissility, the studies determined both shape and quantity of natural blocks within each bench meter; their geometry in terms of fissure frequency; and nature of changes in the fissure number as well as geometry of the blocks depending upon a bench height. Graphical analysis of the obtained results has helped determine the typical dependencies of fissure number upon the changes in the open-pit bench height. Findings. It has been defined that the specific fissility of basalt benches is distributed irregularly in terms of an open-pit bench height. Field studies, involved three basalt open pits, have made it possible to identify that the 3rd degree polynomial is the most adequate approximation of the specific fissility dependence upon the bench height. Originality. For the first time, the experiments have helped define that rock mass joints a share downward from the smaller to the larger ones following a parabolic law (according to a cubic expression). The obtained regularities help identify the percentage of shares of three sizes for each bench height meter. Practical implications. Estimate of share percentage will make it possible to schedule rationally the drilling and blasting operations while selecting energy efficient parameters of production facilities for further basalt processing.

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Prognostic Model of Mineral Resources Development in Ukraine

Cited by 3 publications

References 0 publications

Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams

Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams

Geophysics of Pedosphere in Kyiv University

Analysis of the regularities of basalt open-pit fissility for energy efficiency of ore preparation

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