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Criteria for assessing the longevity of hard coal mines

Frejowski Aleksander, Kabiesz Józef

Archives of Mining Sciences

2020

Vol. 65, no. 3

433--452

The article presents the methodology for assessing the longevity of hard coal mines. Based on inter-national 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.

Ilościowe metody szacowania ryzyka szkody na zdrowiu w górnictwie

Hebda A., Nowak D., Stryczek Z., Gonet R.

Przegląd Górniczy

2009

T. 65, nr 3-4

62-73

Na podstawie prac naukowo-badawczych wykonywanych dla przemysłu górniczego przedstawiono w artykule definicję, założenia interpretacyjne oraz opis i przykłady wykorzystania metod drzewa zdarzeń oraz drzewa błędów do ilościowego szacowania ryzyka zawodowego. Biorąc pod uwagę rozważania zawarte w artykule, wydaje się, że górnictwo posiada odpowiednie narzędzia i doświadczenia do uzyskania informacji o ryzyku zawodowym w stopniu wystarczającym do zastosowania ich w zarządzaniu ryzykiem. Problem istnieje raczej w niedostatku metod stosowanych w zarządzaniu ryzykiem, które uwzględniają specyfikę ryzyka szkody na zdrowiu.

Basing on the scientific-research works executed for mining industry - definition, interpretation assumptions as well as description and examples of using methods of events tree and fault tree for the quantitative evaluation of professional risk are presented. Paying attention to the considerations included in the article, it seems, that mining has proper tools and experience for getting information about professional risk to sufficient degree to apply it for risk management. The problem exists rather in the shortage of the methods used in risk management, which take into consideration specificity of the health damage risk.