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A New Method of Regulation of Loads Acting on the Shaft Lining in Sections Located in the Salt Rock Mass

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  • Paweł Kamiński

    (Department of Mining Engineering, Faculty of Mining and Geoengineering, AGH University of Science and Technology, 30-059 Kraków, Poland)

Abstract

Rock salt is characterized by specific geomechanical and rheological properties. Layers of rock salt at depths of over 900 m cause problems with shaft lining deformation. Methods of shaft lining protection used to date (e.g., in the Sieroszowice mine) have not been effective enough. The research presents a patented and copyright protected concept of a shaft lining construction that can be used in rock masses with strong rheological properties and susceptibility to leaching. A high value of convergence in salt rock mass is a reason for serious problems with shaft lining stability. Numerous trials have been done to provide appropriate shaft lining for salt layers, especially to ensure proper geometry of shaft members and conveyance guidance. In the new shaft lining concept, the excessive rock creep into the outbreak inside the shaft diameter is removed by local and controlled leaching of the shaft cheeks by means of fresh water through a porous medium at the contact layer behind the watertight tubing lining. The article presents the methodology of performing tests on a special device and the test results.

Suggested Citation

  • Paweł Kamiński, 2020. "A New Method of Regulation of Loads Acting on the Shaft Lining in Sections Located in the Salt Rock Mass," Energies, MDPI, vol. 14(1), pages 1-14, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:42-:d:467293
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    References listed on IDEAS

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    1. Waldemar Korzeniowski & Katarzyna Poborska-Młynarska & Krzysztof Skrzypkowski & Krzysztof Zagórski & Mariusz Chromik, 2020. "Cutting Niches in Rock Salt by Means of a High-Pressure Water Jet in Order to Accelerate the Leaching of Storage Caverns for Hydrogen or Hydrocarbons," Energies, MDPI, vol. 13(8), pages 1-24, April.
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    More about this item

    Keywords

    mine shaft; salt rock; leaching;
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