Analysis of the Impact of Air Depression on the Structures of Mine Steel Headframes

For citation.
Toloshnyi S.I., Krivonozhenkov M.V., Stroev N.N. Analysis of the Impact of Air Depression on the Structures of Mine Steel Headframes. Bezopasnost Truda v Promyshlennosti = Occupational Safety in Industry. — 2026. — № 4. — рр. 90-96. (In Russ.). DOI: 10.24000/0409-2961-2026-4-90-96


Annotation:

Mine headframes are the most responsible and complex structural facilities of mine surface with adverse operating conditions. As a result of the impact of aggressive corrosive medium, static, temporary, specific, and dynamic loads, headframe structures are inevitably damaged. An important task is to assess the structural safety and operability of a headframe facility during long-term operation. When studying the impact of various types of damage and loads on the mechanical properties of headframe metal structures, the effect of air depression is underestimated because it has a negligible influence on the strength of a headframe facility. 
The goal of the study is to determine the impact of air depression on the bearing capacity of elements of the metal headframe structure, taking into account existing damage to metal structures, during its operation. The assessment of the extent of air depression impact is based on a finite element model of an existing mine headframe, whose machine tool is mainly a part independent of the basic bearing structure, allowing the impact of air depression to be assessed without lifting loads. According to the calculation results, with the existing wear of elements and the calculated value of the depression, the metal structures of the machine tool do not have sufficient bearing capacity. Air depression load does not critically impact the overall strength of a headframe facility but poses a threat of destruction of machine tool cladding. An optimal reinforcement option has been selected to ensure the structure's sufficient strength. The study results indicate the need to calculate potential loads from air depression and changes in the operational parameters of structural elements when designing headframe facilities and assessing their technical condition.
 

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DOI: 10.24000/0409-2961-2026-4-90-96
Year: 2026
Issue num: April
Keywords : расчет на прочность load металлические конструкции air depression mine headframes airtight cladding
Authors:
  • Toloshnyi S.I.
    Senior Researcher, s.i.toloshnyi@gmail.com Makeevka Research Institute for Mining Safety, Makeevka, Russian Federation
  • Krivonozhenkov M.V.
    Senior Researcher Makeevka Research Institute for Mining Safety, Makeevka, Russian Federation
  • Stroev N.N.
    Head of Laboratory Makeevka Research Institute for Mining Safety, Makeevka, Russian Federation