Prediction of coal quality using block model of a seam: A case-study of Kuti lignite deposit

The article describes the quality prediction procedure for coal based on the complete and seam-wise block models of lignite deposits. The goal of the study is to construct a block model of seam I of Kuti lignite deposit with quality characteristics of the blocks. The marker variables of the modeling are the high and low heat values, as well as the ash content of coals. The article describes meeting of two objectives: creation of a digital block model of coal with quality characteristics and the use of the model in mining process; correlation and analysis of the coal quality characteristics in the digital block model based on the geological exploration data of 1959 and generalized exploration data of 2020. The digital coal seam block models in this study use the interpolated coal quality characteristics from the geological exploration data of 1959. The analysis shows a good agreement between the results of the block modeling of a coal seam and the data of operational exploration accomplished at the test deposit in 2020. Based on this agreement, the authors put forward a hypothesis on applicability of the interpolation methods in assessment of both mineral quality and mining safety within the limits of a lithological unit.

Sidorova G. P., Manikovskiy P. M. Prediction of coal quality using block model of a seam: A case-study of Kuti lignite deposit. MIAB. Mining Inf. Anal. Bull. 2022;(12):55-66. [In Russ]. DOI: 10.25018/0236_1493_2022_12_0_55.

The study was supported by the Russian Science Foundation, Grant No. 2-27-20057, https://rscf.ru/project/22-27-20057.

G.P. Sidorova¹, Dr. Sci. (Eng.), Professor, e-mail: druja@inbox.ru,
P.M. Manikovskiy¹, Senior Lecturer, e-mail: manikovskiypm@yandex.ru, ORCID ID: 0000-0002-0120-1627,
¹ Transbaikal State University, 672039, Chita, Russia.

G.P. Sidorova, e-mail: druja@inbox.ru.

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