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Deformations of Mining Terrain Caused by the Partial Exploitation in the Aspect of Measurements and Numerical Modeling

Author

Listed:
  • Jan Białek

    (Department of Mining, Safety Engineering and Industrial Automation, Faculty of Mining, Silesian University of Technology, Akademicka 2A Street, 44-100 Gliwice, Poland)

  • Marek Wesołowski

    (Department of Mining, Safety Engineering and Industrial Automation, Faculty of Mining, Silesian University of Technology, Akademicka 2A Street, 44-100 Gliwice, Poland)

  • Ryszard Mielimąka

    (Department of Mining, Safety Engineering and Industrial Automation, Faculty of Mining, Silesian University of Technology, Akademicka 2A Street, 44-100 Gliwice, Poland)

  • Paweł Sikora

    (Department of Mining, Safety Engineering and Industrial Automation, Faculty of Mining, Silesian University of Technology, Akademicka 2A Street, 44-100 Gliwice, Poland)

Abstract

The article presents the results of geodetic measurements and numerical modeling of mining area deformations in the partial exploitation area of the 712/ 1-2 seam at the Marcel Coal Mine. An important element in this exploitation is the limitation of the length of longwalls with cavings to 130 m and 150 m, leaving an unextracted 70 m wide coal solid belt between them. Leaving the belts aimed to reduce deformations of the mining terrain, with relatively limited deposit losses. The numerical modeling of mining terrain deformations was performed using the Fast Lagrangian Analysis of Continua (FLAC) software package based on the finite difference method. The results of the geodetic measurements and computer simulations presented in the article confirm the assumption adopted during the planning stage of this exploitation about the possible significant reduction of mining terrain deformations caused by leaving the unextracted belts of coal solid between successive longwall panels.

Suggested Citation

  • Jan Białek & Marek Wesołowski & Ryszard Mielimąka & Paweł Sikora, 2020. "Deformations of Mining Terrain Caused by the Partial Exploitation in the Aspect of Measurements and Numerical Modeling," Sustainability, MDPI, vol. 12(12), pages 1-12, June.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:12:p:5072-:d:374628
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    Cited by:

    1. Zheng Wu & Jun Li & Wen-Long Zhang & Chen Li, 2022. "Analysis of the Failure Characteristics and Main Controlling Factors of Surrounding Rocks Using the Standard Specimen with a Pre-Existing Hole," Sustainability, MDPI, vol. 14(21), pages 1-18, November.

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