Tytuł artykułuAssessing Geological and Mining Condition Nuisance and its Impact on the Cost of Exploitation in Hard Coal Mines with the Use of a Multi-Criterion Method
Tytuł czasopismaArchives of Mining Sciences
Słowa kluczowecoal deposits ; hard coal mining ; Hierarchical Problem Analysis AHP ; nuisance to the mining process conditions ; costs of mining
Wydział PANNauki o Ziemi
Archives of Mining Sciences (AMS) publish research results of wide interest in all fields of mining sciences which include: rock mechanics, mining engineering, mineral processing, geotechnical engineering and tunnelling, mining and engineering geology, minig geodesy and geophysics, ventilation systems, environmental protection in mining and economical aspects in mining.
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This article presents the use of a multi-criterion Analytic Hierarchy Process (AHP) method to assess
geological and mining condition nuisance in longwall mining operations in selected coal mines in Poland.
For this purpose, a methodology has been developed which was used to calculate the operational nuisance
indicator (WUe) in relation to the cost of mining coal in individual longwalls. Components of the aggregate
operational nuisance indicator include four sub-indicators: the natural hazards indicator (UZN), an
indicator describing the seam parameters (UPZ), an indicator describing the technical parameters (UT)
and an environmental impact indicator (UŚ). In total, the impact of 28 different criteria, which formed
particular components of the nuisance indicators were analysed. In total 471 longwalls in 11 coal mines
were analysed, including 277 longwalls that were mined in the period of 2011 to 2016 and 194 longwalls
scheduled for exploitation in the years 2017 to 2021.
Correlation analysis was used to evaluate the relationships between nuisance and the operating costs
of longwalls. The analysis revealed a strong correlation between the level of nuisance and the operating
costs of the longwalls under study. The design of the longwall schedule should therefore also take into
account the nuisance arising from the geological and mining conditions of the operations. Selective
operations management allows for the optimization of costs for mining in underground mines using the
longwall system. This knowledge can also be used to reduce the total operating costs of mines as a result
of abandoning the mining operations in entire longwalls or portions of longwalls that may be permanently
unprofitable. Currently, underground mines do not employ this optimization method, which even more
emphasizes the need for popularizing this approach.
WydawcaCommittee of Mining PAS
TypArtykuły / Articles