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<p>The paper presents the methodology for assessing the stability of the dams of the Żelazny Most Tailings Storage Facility (ZM TSF) located in Legnica-Głogów Copper Belt Area, Poland. The ZM TSF is the only place for storing tailings, a by-product of copper production and also serves as a reservoir of water being reused in mining operations and the flotation processes. Given its critical role, a reliable stability analysis accounting for mining-induced dynamic loads is essential to prevent potential failures and ensure the continuous operation of copper production. The paper outlines an approach to stability assessment of the dams beginning with a static analysis, followed by pseudo-static calculations and concluding with Newmark’s sliding block concept coupled with dynamic response analysis. The stability models are based on data from an extensive monitoring system, complemented by results from numerous advanced in situ and laboratory soil tests. The impact of mining-induced seismicity on the ZM TSF dams is discussed along with the process of selecting appropriate accelerograms for stability calculations. Additionally, the paper provides an overview of the signal processing techniques, including signal deconvolution necessary to establish the kinematic boundary conditions. Finally, the stability assessment of a selected cross-section of ZM TSF is assessed under five design accelerograms and the results are presented and discussed.</p>

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Methodology for the stability assessment of the dams of Żelazny Most Tailings Storage facility due to mining-induced dynamic impact

  • 期刊论文

  • 发表日期：

    2025年7月25日

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  • Aleksandra Korzec,
  • Waldemar Świdziński,
  • Paweł Stefanek

摘要

The paper presents the methodology for assessing the stability of the dams of the Żelazny Most Tailings Storage Facility (ZM TSF) located in Legnica-Głogów Copper Belt Area, Poland. The ZM TSF is the only place for storing tailings, a by-product of copper production and also serves as a reservoir of water being reused in mining operations and the flotation processes. Given its critical role, a reliable stability analysis accounting for mining-induced dynamic loads is essential to prevent potential failures and ensure the continuous operation of copper production. The paper outlines an approach to stability assessment of the dams beginning with a static analysis, followed by pseudo-static calculations and concluding with Newmark’s sliding block concept coupled with dynamic response analysis. The stability models are based on data from an extensive monitoring system, complemented by results from numerous advanced in situ and laboratory soil tests. The impact of mining-induced seismicity on the ZM TSF dams is discussed along with the process of selecting appropriate accelerograms for stability calculations. Additionally, the paper provides an overview of the signal processing techniques, including signal deconvolution necessary to establish the kinematic boundary conditions. Finally, the stability assessment of a selected cross-section of ZM TSF is assessed under five design accelerograms and the results are presented and discussed.