The dump slope in opencast mines refers to the embankments or slopes formed by the disposal of overburden or waste materials removed during mining operations. The stability of dump slopes is crucial for mine operators, communities, and the environment because failure can lead to severe landslides, environmental harm, loss of life, and economic disruptions. The behavior of mine dumps during seismic activity is significantly affected by factors such as material properties, slope geometry, pore water pressure, and geological and dynamic loading conditions. This study examines the stability of the dump slope at an opencast mine in the Wardha Valley Coalfield, Maharashtra, under various seismic conditions using Slide2 software. It evaluates dump slope stability by considering factors like unit weight, cohesion, and friction angle in different ground conditions. Additionally, the study explores how the factor of safety of the dump slope changes with variations in groundwater table height across different earthquake zones. The results aim to enhance understanding of dump slope stability, reduce associated risks, and promote safer and more sustainable mining practices.

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Seismic Slope Stability Assessment of Opencast Mines Using Slide2 Software

  • Rohan Paul,
  • Swapnil Mishra

摘要

The dump slope in opencast mines refers to the embankments or slopes formed by the disposal of overburden or waste materials removed during mining operations. The stability of dump slopes is crucial for mine operators, communities, and the environment because failure can lead to severe landslides, environmental harm, loss of life, and economic disruptions. The behavior of mine dumps during seismic activity is significantly affected by factors such as material properties, slope geometry, pore water pressure, and geological and dynamic loading conditions. This study examines the stability of the dump slope at an opencast mine in the Wardha Valley Coalfield, Maharashtra, under various seismic conditions using Slide2 software. It evaluates dump slope stability by considering factors like unit weight, cohesion, and friction angle in different ground conditions. Additionally, the study explores how the factor of safety of the dump slope changes with variations in groundwater table height across different earthquake zones. The results aim to enhance understanding of dump slope stability, reduce associated risks, and promote safer and more sustainable mining practices.