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Abstract

The article contains considerations on possible actions directed at increasing productivity of hard

coal mining industry. It is necessary to improve the state of the industry, and ensure its survival. Basic

definitions and measures concerning productivity and management were presented to illustrate examples

referring to a mining enterprise. Then, basing on organizing, one of the management functions, the issue

of productivity in a mining enterprise and its influence on improving effectiveness of operational management,

was analysed. An assumption was presented that solutions concerning identification of sources

and volume of costs, hitherto existing in mining enterprises, ought to be complemented with the planning

function following process approach. It can be the starting point for decisions of economic feasibility of

given deposits, seams or parts of them, before mining operations start, and to control incurred costs in

process approach. The article is summed up with a process algorithm of cost management.

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Authors and Affiliations

Stanisław Prusek
Marian Turek
Józef Dubiński
Izabela Jonek-Kowalska
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Abstract

All the restructuring programs that have been implemented in Polish bituminous coal mining as a primary way to reduce mining costs relied on the increased concentration of mining operations. Those efforts especially involved a significant simplification of existing or newly developed structures for accessing or cutting the deposits intended for extraction; implementation of advanced mining technologies, and upgrading of machines used in mine faces. However, in order for these to deliver the expected results, it is important to organize mining operations in such a way so that those advanced, and usually very expensive, mining-related fixed assets – machinery and equipment – are used sensibly. In order to define a reasonable production capacity of each longwall face, it is necessary to apply various criteria related to the mining and technical aspects, occupational safety, and organizational and economic aspects. Only then will it be possible to evaluate the expected effects in the field of concentration of mining in a mining company and in the mines which form part of such enterprises. Decisions in this respect should always be made at the planning stage, based on analysis results. The aim of this article is to explore the factors involved in concentration-related decision-making in mining companies, including the underlying mining/technical, organizational, and economic/ /financial aspects. A mining company is understood as a group of related mines, the primary business operations of which include bituminous coal mining, processing, and trading.

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Authors and Affiliations

Patrycja Bąk
ORCID: ORCID
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Abstract

The article presents the methodology for assessing the longevity of hard coal mines. Based on international experts’ assessments, important criteria for determining mine viability have been presented. The results refer to Polish coal mines in the area of the Upper Silesian Coal Basin, however, the methodology itself can be applied to other geological and mining conditions of mines elsewhere.

The results of structural analyses carried out using the MICMAC method for factors related to the mining geo-environment that may determine the longevity of individual hard coal mines are presented. The analyses were based on the results of expert surveys carried out using the Delphi method. The experts participating in the survey came from various countries and had extensive experience related to work or cooperation with hard coal mining. The criterion factors examined were assigned to two systems (groups) for which structural analysis was performed. The first group includes factors related to the level of exploitation hampering, while the second group includes factors related to hard coal quality and the availability of resources. As a result of the analyses the following were determined: the key factors which have the most significant influence on the system, result and goal factors, factors affecting the system and autonomous factors which have little effect on the system.

The obtained results allowed to determine which factors should be taken into account in the process of determining the longevity of a hard coal mine.

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Authors and Affiliations

Aleksander Frejowski
Józef Kabiesz

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