Computational Methods for Verifying the Normative Requirements Regarding the Lateral Correction Force of a Powered Roof Support

Stanisław Szweda, Marek Szyguła, Michał Szelka (), Marian Banaś and Krzysztof Kołodziejczyk
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Stanisław Szweda: KOMAG Institute of Mining Technology, Pszczyńska 37, 44-101 Gliwice, Poland
Marek Szyguła: KOMAG Institute of Mining Technology, Pszczyńska 37, 44-101 Gliwice, Poland
Michał Szelka: KOMAG Institute of Mining Technology, Pszczyńska 37, 44-101 Gliwice, Poland
Marian Banaś: Department of Power Systems and Environmental Protection Facilities, Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland
Krzysztof Kołodziejczyk: Department of Power Systems and Environmental Protection Facilities, Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland

Energies, 2024, vol. 17, issue 21, 1-23

Abstract: The article discusses laboratory methods and the corresponding computational methods verifying compliance with the normative requirements regarding the lateral correction force of the powered roof support. The currently used flat model only allows for checking the normative requirement in relation to the sum of active forces of the correction cylinders installed in the roof support. Determining the required value of the active force of each cylinder is possible due to the simplified FEM model of a powered roof support, described in the research work, treated as a uniform weightless elastic body loaded with a concentrated force recreating the weight of the roof support located on an inclined longwall panel. The third analysed computational method involves determining the reaction in the four correction cylinders of the roof support, creating a spatial, statically indeterminate system of forces. It enables determining the range of variability of the response in the correction cylinders as a function of the distribution of floor pressure on the roof support base. The discussed computational methods were used to determine, for example, the lateral correction force of one of the types of powered supports used in a longwall panel inclined at an angle of 35°. The usefulness of the discussed calculation methods at various stages of the designing process of the powered support and its certification has been confirmed.

Keywords: mining; longwall system; powered roof support; lateral correction force (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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